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  • Statistics In Transition

 

Article | 15-March-2019

LINDLEY PARETO DISTRIBUTION

In this paper, we introduce a new Lindley Pareto distribution, which offers a more flexible model for modelling lifetime data. Some of its mathematical properties like density function, cumulative distribution, mode, mean, variance, and Shannon entropy are established. A simulation study is carried out to examine the bias and mean square error of the maximum likelihood estimators of the unknown parameters. Three real data sets are fitted to illustrate the importance and the flexibility of the

Halim Zeghdoudi, Lazri Nouara, Djabrane Yahia

Statistics in Transition New Series, Volume 19 , ISSUE 4, 671–692

Research Article | 01-June-2020

Beta transmuted Lomax distribution with applications

In this paper we propose and test a composite generalizer of the Lomax distribution .The genesis of the beta distribution and transmuted map is used to develop the so-called beta transmuted Lomax (BTL) distribution. The properties of the distribution are discussed and explicit expressions are derived for the moments, mean deviations, quantiles, distribution of order statistics and reliability. The maximum likelihood method is used for estimating the model parameters, and the finite sample

Ahmed Hurairah, Abdelhakim Alabid

Statistics in Transition New Series, Volume 21 , ISSUE 2, 13–34

Article | 06-July-2017

SUJATHA DISTRIBUTION AND ITS APPLICATIONS

In this paper a new one-parameter lifetime distribution named “Sujatha Distribution” with an increasing hazard rate for modelling lifetime data has been suggested. Its first four moments about origin and moments about mean have been obtained and expressions for coefficient of variation, skewness, kurtosis and index of dispersion have been given. Various mathematical and statistical properties of the proposed distribution including its hazard rate function, mean residual life function

Rama Shanker

Statistics in Transition New Series, Volume 17 , ISSUE 3, 391–410

Article | 06-July-2017

TRANSMUTED KUMARASWAMY DISTRIBUTION

The Kumaraswamy distribution is the most widely applied statistical distribution in hydrological problems and many natural phenomena. We propose a generalization of the Kumaraswamy distribution referred to as the transmuted Kumaraswamy (𝑇𝐾𝑤) distribution. The new transmuted distribution is developed using the quadratic rank transmutation map studied by Shaw et al. (2009). A comprehensive account of the mathematical properties of the new distribution is provided. Explicit expressions are

Muhammad Shuaib Khan, Robert King, Irene Lena Hudson

Statistics in Transition New Series, Volume 17 , ISSUE 2, 183–210

Article | 20-September-2020

Power Size Biased Two-Parameter Akash Distribution

In this paper, the two-parameter Akash distribution is generalized to size-biased twoparameter Akash distribution (SBTPAD). A further modification to SBTPAD is introduced, creating the power size-biased two-parameter Akash distribution (PSBTPAD). Several statistical properties of PSBTPAD distribution are proved. These properties include the following: moments, coefficient of variation, coefficient of skewness, coefficient of kurtosis, the maximum likelihood estimation of the distribution

Khaldoon Alhyasat, Ibrahim Kamarulzaman, Amer Ibrahim Al-Omari, Mohd Aftar Abu Bakar

Statistics in Transition New Series, Volume 21 , ISSUE 3, 73–91

Article | 20-September-2020

A New Quasi Sujatha Distribution

The aim of this paper is to introduce a new quasi Sujatha distribution (NQSD), of which the following are particular cases: the Sujatha distribution devised by Shanker (2016 a), the sizebiased Lindley distribution, and the exponential distribution. Its moments and momentsbased measures are derived and discussed. Statistical properties, including the hazard rate and mean residual life functions, stochastic ordering, mean deviations, Bonferroni and Lorenz curves and stress-strength reliability

Rama Shanker, Kamlesh Kumar Shukla

Statistics in Transition New Series, Volume 21 , ISSUE 3, 53–71

Article | 15-March-2019

EXTENDED EXPONENTIATED POWER LINDLEY DISTRIBUTION

In this study, we introduce a new model called the Extended Exponentiated Power Lindley distribution which extends the Lindley distribution and has increasing, bathtub and upside down shapes for the hazard rate function. It also includes the power Lindley distribution as a special case. Several statistical properties of the distribution are explored, such as the density, hazard rate, survival, quantile functions, and moments. Estimation using the maximum likelihood method and inference on a

V. Ranjbar, M. Alizadeh, G. G. Hademani

Statistics in Transition New Series, Volume 19 , ISSUE 4, 621–643

Research Article | 15-February-2020

A New Method for Interference Reduction in the Smoothed Pseudo Wigner-Ville Distribution

This article presents a new method facilitating interference reduction in the Wigner-Ville distribution, which is used for nonstationary signal analysis, for example in machine condition monitoring. The algorithm is based on multiple Smoothed Pseudo Wigner-Ville distributions: differently smoothed time-frequency planes are compared and, for every point, a cross-term free value is calculated on the basis of optimal smooth estimation. The proposed approach is compared with the Gabor-Wigner

Stanislav Pikula, Petr Beneš

International Journal on Smart Sensing and Intelligent Systems, Volume 7 , ISSUE 5, 1–5

Research Article | 27-May-2018

A NEW AND UNIFIED APPROACH IN GENERALIZING THE LINDLEY’S DISTRIBUTION WITH APPLICATIONS

This paper proposes a new family of continuous distributions with one extra shape parameter called the generalized Zeghdoudi distributions (GZD). We investigate the shapes of the density and hazard rate function. We derive explicit expressions for some of its mathematical quantities. Various statistical properties like stochastic ordering, moment method, maximum likelihood estimation, entropies and limiting distribution of extreme order statistics are established. We prove the flexibility of

Lahsen Bouchahed, Halim Zeghdoudi

Statistics in Transition New Series, Volume 19 , ISSUE 1, 61–74

Research Article | 27-May-2018

POWER ISHITA DISTRIBUTION AND ITS APPLICATION TO MODEL LIFETIME DATA

A study on two-parameter power Ishita distribution (PID), of which Ishita distribution introduced by Shanker and Shukla (2017 a) is a special case, has been carried out and its important statistical properties including shapes of the density, moments, skewness and kurtosis measures, hazard rate function, and stochastic ordering have been discussed. The maximum likelihood estimation has been discussed for estimating its parameters. An application of the distribution has been explained with a

Kamlesh Kumar Shukla, Rama Shanker

Statistics in Transition New Series, Volume 19 , ISSUE 1, 135–148

Research Article | 13-December-2018

DEVELOPING SINGLE-ACCEPTANCE SAMPLING PLANS BASED ON A TRUNCATED LIFETIME TEST FOR AN ISHITA DISTRIBUTION

Acceptance sampling plans are statistical procedures that are used for quality control and improvement in cases where it is not possible to test every item in a lot of materials. The outcome of this test determines whether the entire lot is accepted or rejected based on a random sample. In this procedure, an important characteristic of the materials is their lifetime sampling distribution, and this can vary from sample to sample. In this article, a new lifetime distribution, known as an Ishita

Amjad D. Al-Nasser, Amer I. Al-Omari, Ahmed Bani-Mustafa, Khalifa Jaber

Statistics in Transition New Series, Volume 19 , ISSUE 3, 393–406

Research Article | 21-April-2017

Risk sharing in the paper ticket distribution system on the example of municipal transport union of the upper Silesian industrial district in Katowice

Properly organized ticket distribution is a crucial tool to realize tariff policy of public passenger transport provider in the given area, as well as the factor influencing the ticket sale profits. Providing the proper accessibility of public communication ticket sale network requires signing contracts with third parties, which is consequently connected with the necessity to divide the tasks and responsibilities among them, which generates certain risk for each of the parties. In the article

Anna URBANEK

Transport Problems, Volume 10 , ISSUE 1, 45–54

Research Article | 01-June-2020

A comparison study on a new five-parameter generalized Lindley distribution with its sub-models

In recent years, modifications of the classical Lindley distribution have been considered by many authors. In this paper, we introduce a new generalization of the Lindley distribution based on a mixture of exponential and gamma distributions with different mixing proportions and compare its performance with its sub-models. The new distribution accommodates the classical Lindley, Quasi Lindley, Two-parameter Lindley, Shanker, Lindley distribution with location parameter, and Three-parameter

Ramajeyam Tharshan, Pushpakanthie Wijekoon

Statistics in Transition New Series, Volume 21 , ISSUE 2, 89–117

Article | 06-July-2017

KERNEL ESTIMATION OF CUMULATIVE DISTRIBUTION FUNCTION OF A RANDOM VARIABLE WITH BOUNDED SUPPORT

In the paper methods of reducing the so-called boundary effects, which appear in the estimation of certain functional characteristics of a random variable with bounded support, are discussed. The methods of the cumulative distribution function estimation, in particular the kernel method, as well as the phenomenon of increased bias estimation in boundary region are presented. Using simulation methods, the properties of the modified kernel estimator of the distribution function are investigated

Aleksandra Baszczyńska

Statistics in Transition New Series, Volume 17 , ISSUE 3, 541–556

Article | 05-December-2017

Vertical Distribution of Pasteuria penetrans Parasitizing Meloidogyne incognita on Pittosporum tobira in Florida

distribution of Pasteuria penetrans and its relationship with the nematode host in the soil was investigated to identify (i) the vertical distribution of P. penetrans endospores in an irrigated P. tobira field and (ii) the relationship among P. penetrans endospore density, M. incognita J2 population density, and host plant root distribution over time. Soil bioassays revealed that endospore density was greater in the upper 18 cm of the top soil compared with the underlying depths. A correlation analysis

RICHARD BAIDOO, TESFAMARIAM MEKETE MENGISTU, JANETE A. BRITO, ROBERT MCSORLEY, ROBERT H. STAMPS, WILLIAM T. CROW

Journal of Nematology, Volume 49 , ISSUE 3, 311–315

Research Article | 04-September-2019

GENERALIZED PARETO DISTRIBUTION BASED ON GENERALIZED ORDER STATISTICS AND ASSOCIATED INFERENCE

In this paper, we have considered the generalized Pareto distribution. Various structural properties of the distribution are derived including (quantile function, explicit expressions for moments, mean deviation, Bonferroni and Lorenz curves and Renyi entropy). We have provided simple explicit expressions and recurrence relations for single and product moments of generalized order statistics from the generalized Pareto distribution. The method of maximum likelihood is adopted for estimating the

Mansoor Rashid Malik, Devendra Kumar

Statistics in Transition New Series, Volume 20 , ISSUE 3, 57–79

Article | 15-March-2019

ON A LESS CUMBERSOME METHOD OF ESTIMATION OF PARAMETERS OF LINDLEY DISTRIBUTION BY ORDER STATISTICS

In this article, we have derived suitable U-statistics from a sample of any size exceeding a specified integer to estimate the location and scale parameters of Lindley distribution without the evaluation of means, variances and co-variances of order statistics of an equivalent sample size arising from the corresponding standard form of distribution. The exact variances of the estimators have been also obtained.

M. R. Irshad, R. Maya

Statistics in Transition New Series, Volume 19 , ISSUE 4, 597–620

Article | 20-December-2020

A new generalization of the Pareto distribution and its applications

This paper introduces a new generalization of the Pareto distribution using the MarshallOlkin generator and the method of alpha power transformation. This new model has several desirable properties appropriate for modelling right skewed data. The Authors demonstrate how the hazard rate function and moments are obtained. Moreover, an estimation for the new model parameters is provided, through the application of the maximum likelihood and maximum product spacings methods, as well as the Bayesian

Ehab M. Almetwally, Hanan A. Haj Ahmad

Statistics in Transition New Series, Volume 21 , ISSUE 5, 61–84

research-paper | 14-June-2019

Differences in spatio-temporal distribution of the visual P3b event-related potential between young men and women

electrode site, hemispheric and midline differences, and correlations between these parameters and with behavioral data. We also evaluated differences in scalp voltage distribution after onset of the target stimuli and performed a statistical analysis of ERP time courses using nonparametric permutation cluster analysis. The latter is an additional novel aspect of this study, and may provide deeper insights into the current knowledge of gender-based differences during the generation, propagation, and

Karina Maciejewska, Zofia Drzazga

Acta Neurobiologiae Experimentalis, Volume 79 , ISSUE 1, 25–38

Article | 06-July-2017

CHANGING MORTALITY DISTRIBUTION IN DEVELOPED COUNTRIES FROM 1970 TO 2010: LOOKING AT AVERAGES AND BEYOND THEM

The methods typically developed in income inequality and poverty research are employed to observe changes in life spans distribution in 35 developed countries. The analyses are performed at two levels, using the same methods when possible: i/ taking the countries as the units with a mean length of life being a single parameter representing the distribution, ii/ utilizing the country life tables (taking people as the units) in order to compare other than mean length of life attributes of

Adam Szulc

Statistics in Transition New Series, Volume 17 , ISSUE 3, 467–496

Article | 15-March-2021

ROAD TRAFFIC DISTRIBUTION ON PUBLIC HOLIDAYS AND WORKDAYS ON SELECTED ROAD TRANSPORT NETWORK ELEMENTS

As a rule, the road traffic volume distribution in particular hours on working days shows certain patterns on specific types of roads. Public holidays during the year cause disturbances and differences in the distribution of the daily traffic volume compared to working days. The road traffic volume distribution during the day is very important in the analysis of phenomena occurring in terms of road traffic. Knowledge of the values of traffic volumes during the day and their variability allows

Elżbieta MACIOSZEK, Agata KUREK

Transport Problems, Volume 16 , ISSUE 1, 127–138

research-article | 19-March-2020

Natural occurrence and distribution of entomopathogenic nematodes (Steinernematidae, Heterorhabditidae) in Viti Levu, Fiji Islands

). There was a significant association between H. indica occurrence and average annual rainfall (U = 4144, p < 0.001), whereas average minimum annual air temperature (U = 7575, p = 0.82) and average maximum annual air temperature (U = 6387, p = 0.079) had no significant association with H. indica occurrence. Table 5. Distribution of H. indica in Viti Levu at different environmental variables. Categories Total samples Positive samples Recovery frequency (%)a Climatic zone Leeward

Sumeet Kour, Uma Khurma, Gilianne Brodie, Selcuk Hazir

journal of nematology, Volume 52 , 1–17

Research Article | 14-February-2019

THE DISTRIBUTION OF MARSHALLING WORK OF INDUSTRIAL AND MAINLINE RAIL TRANSPORT

The article discusses the issue of effective distribution of work on formation of train network between the stations of industrial and mainline rail transport. The analysis is worked out of difficulties in the interaction of technological systems of railway transport of common and uncommon use and risks of the transport stream delays. The strategy for sorting of wagons and a complex of interconnected mathematical models is developed. The proposed solution method is based on step-by-step

Andrey BORODIN, Vitaly PANIN

Transport Problems, Volume 13 , ISSUE 4, 37–46

Research Article | 22-January-2018

RELATIONS FOR MOMENTS OF PROGRESSIVELY TYPE-II RIGHT CENSORED ORDER STATISTICS FROM ERLANG-TRUNCATED EXPONENTIAL DISTRIBUTION

In this paper, we establish some new recurrence relations for the single and product moments of progressively Type-II right censored order statistics from the Erlangtruncated exponential distribution. These relations generalize those established by Aggarwala and Balakrishnan (1996) for standard exponential distribution. These recurrence relations enable computation of mean, variances and covariances of all progressively Type-II right censored order statistics for all sample sizes in a simple

Mansoor Rashid Malik, Devendra Kumar

Statistics in Transition New Series, Volume 18 , ISSUE 4, 651–668

Article | 01-June-2016

RANDOM KEY PRE-DISTRIBUTION SCHEME BASED ON KEY UPDATING

A random key pre-distribution scheme based on key updating (RKKU) was proposed, which is effective in wireless sensor networks. Firstly, the base station will randomly distribute some keys, a hash function and some code slices to each node. Furthermore, the RKKU scheme compares with the information of some random key to find the same key, and computes the communication key between two sensor nodes with one-way hash function. Since the one-way hash function can ensure that the attacker cannot

ZHU Ling-Zhi, HE Rui, ZHANG Jun-Ling

International Journal on Smart Sensing and Intelligent Systems, Volume 9 , ISSUE 2, 979–996

Article | 27-May-2019

THE ODD GENERALIZED EXPONENTIAL LOG-LOGISTIC DISTRIBUTION GROUP ACCEPTANCE SAMPLING PLAN

In this manuscript, a group acceptance sampling plan (GASP) is developed when the lifetime of the items follows odd generalized exponential log-logistic distribution (OGELLD), the multiple number of items as a group can be tested simultaneously in a tester. The design parameters such as the minimum group size and the acceptance number are derived when the consumer’s risk and the test termination time are specified. The operating characteristic (OC) function values are calculated (intended

Devireddy Charana Udaya Sivakumar, Rosaiah Kanaparthi, Gadde Srinivasa Rao, Kruthiventi Kalyani

Statistics in Transition New Series, Volume 20 , ISSUE 1, 103–116

Article | 28-August-2018

INNOVATIVE STEEL FIBERS AND THEIR EFFECT ON FIBER DISTRIBUTION IN BEAMS - EXPERIMENTAL INVESTIGATIONS

This contribution presents experimental investigations on fiber reinforced concrete (FRC). A new type of straight steel fibers (company Feel Fiber) with a length of 60 mm was used. 12 beams with a length of 6 m, a height of 0.4 m and a width of 0.5 m were produced, in order to determine the fiber distribution along them. The beams differ in the manufacturing method (cast in layers or from one side), the fiber content and the way of fiber addition. After concretes hardening, slices were cut of

Michael HUSS, Nguyen Viet TUE

Architecture, Civil Engineering, Environment, Volume 10 , ISSUE 3, 103–108

Article | 10-April-2018

Association Rule Mining Based on Estimation of Distribution Algorithm for Blood Indices

To come over the limitations of Apriori algorithm and association rule mining algorithm based on Genetic Algorithm (GA), this paper proposed a new association rule mining algorithm based on the population-based incremental algorithm (PBIL), which is a kind of distribution estimation algorithms. The proposed association rule-mining algorithm keeps the advantages of GA mining association rules in coding and the fitness function. Through using probability vector possessing learning properties to

Xinyu Zhang, Botu Xue, Guanghu Sui, Jianjiang Cui

International Journal of Advanced Network, Monitoring and Controls, Volume 2 , ISSUE 3, 20–26

Research paper | 01-June-2011

A Novel Biased Energy Distribution (BED) Technique for Cluster-Based Routing in Wireless Sensor Networks

This paper presents the impact of utilizing a biased energy distribution (BED) scheme for clustering sensor networks. In clustering sensor networks, some of the nodes are elected as aggregators and they compress the data from their cluster members before sending the aggregated data to the sink. Existing clustering routing protocols assume that all the nodes are provided with equal amount of energy but this shortens the network lifetime and makes the network unstable. This paper proposes a

A. F. Salami, H. Bello-Salau, F. Anwar, A. M. Aibinu

International Journal on Smart Sensing and Intelligent Systems, Volume 4 , ISSUE 2, 161–173

Research Article | 23-October-2017

OPTIMUM DISTRIBUTION OF REPAIRS IN ТS-8 OF ELECTRIC LOCOMOTIVES VL80С BETWEEN REPAIR DEPOTS IN THE REPUBLIC OF KAZAKHSTAN

The article presents the solution for the problem of optimal distribution of electric locomotives in repair enterprises for carrying out repairs in the frame of technical service - 8 (ТS-8) and increased technical service - 8 (ITS-8). The aim of the study is to improve the efficacy of a rolling stock with a simultaneous decrease in the total expenses connected with the repair of locomotives and their transportation in repair enterprises. This is possible due to a reduction in the requirement

Seidulla ABDULLAYEV, Janat MUSAYEV, Temyrbay CHIGAMBAEV, Saken MALYBAYEV, Gabit BAKYT, Assylbek TOILYBAYEV

Transport Problems, Volume 12 , ISSUE 2, 19–29

Article | 11-July-2017

Improved Estimation of the Scale Parameter for Log-Logistic Distribution Using Balanced Ranked Set Sampling

Abstract In this article we have suggested some improved estimators of a scale parameter of log-logistic distribution (LLD) under a situation where the units in a sample can be ordered by judgement method without any error. We have also suggested some linear shrinkage estimator of a scale parameter of LLD. Efficiency comparisons are also made in this work.

Housila P. Singh, Vishal Mehta

Statistics in Transition New Series, Volume 18 , ISSUE 1, 53–74

Article | 20-September-2020

Generalised Odd Frechet Family of Distributions: Properties and Applications

A new distribution called Generalized Odd Fréchet (GOF) distribution is presented and its properties explored. Some structural properties of the proposed distribution, including the shapes of the hazard rate function, moments, conditional moments, moment generating function, skewness, and kurtosis are presented. Mean deviations, Lorenz and Bonferroni curves, Rényi entropy, and the distribution of order statistics are given. The maximum likelihood estimation technique is used to

Shahdie Marganpoor, Vahid Ranjbar, Morad Alizadeh, Kamel Abdollahnezhad

Statistics in Transition New Series, Volume 21 , ISSUE 3, 109–128

Article | 24-June-2021

MATHEMATICAL MODELING OF CARGO FLOW DISTRIBUTION IN A REGIONAL MULTIMODAL TRANSPORTATION SYSTEM

An integrated approach is proposed in the study of rational schemes for the distribution of cargo flows at a regional transport loop for multimodal transportation, considered within the framework of an oligopolistic market. A technique has been developed for the parallel application of two approaches, differing in their mathematical nature, to the issues of increasing the economic efficiency of these transportations. The results obtained by the previously developed method of economic and

Oleg CHISLOV, Viktor BOGACHEV, Vyacheslav ZADOROZHNIY, Alexandra KRAVETS, Maksim BAKALOV, Taras BOGACHEV

Transport Problems, Volume 16 , ISSUE 2, 153–165

Research Article | 24-August-2017

A THREE-PARAMETER WEIGHTED LINDLEY DISTRIBUTION AND ITS APPLICATIONS TO MODEL SURVIVAL TIME

In this paper a three-parameter weighted Lindley distribution, including Lindley distribution introduced by Lindley (1958), a two-parameter gamma distribution, a two-parameter weighted Lindley distribution introduced by Ghitany et al. (2011) and exponential distribution as special cases, has been suggested for modelling lifetime data from engineering and biomedical sciences. The structural properties of the distribution including moments, coefficient of variation, skewness, kurtosis and index

Rama Shanker, Kamlesh Kumar Shukla, Amarendra Mishra

Statistics in Transition New Series, Volume 18 , ISSUE 2, 291–310

Article | 20-September-2020

Statistical Properties and Estimation of Power-Transmuted Inverse Rayleigh Distribution

A three-parameter continuous distribution is constructed, using a power transformation related to the transmuted inverse Rayleigh (TIR) distribution. A comprehensive account of the statistical properties is provided, including the following: the quantile function, moments, incomplete moments, mean residual life function and Rényi entropy. Three classical procedures for estimating population parameters are analysed. A simulation study is provided to compare the performance of different

Amal S. Hassan, Salwa M. Assar, Ahmed M. Abdelghaffar

Statistics in Transition New Series, Volume 21 , ISSUE 3, 93–107

Research Article | 01-June-2020

Statistical properties and different methods of estimation for extended weighted inverted Rayleigh distribution

The aim of this paper is to introduce a new weighted probability distribution to model the non-monotone failure rate pattern for survival data. The proposed distribution is generalized by considering inverted Rayleigh distribution as a baseline distribution called an extended weighted inverted Rayleigh distribution. Different statistical properties such as moment, quantile function, moment generating function, entropy measurement, Bonferroni and Lorenz curve, stochastic ordering and order

Abhimanyu Singh Yadav, S. K. Singh, Umesh Singh

Statistics in Transition New Series, Volume 21 , ISSUE 2, 119–141

Article | 01-December-2016

CALCULATION AND SIMULATION OF ELECTROMAGNETIC WAVE PROPAGATION PATH LOSS BASED ON MATLAB

In order to reliable data transmission of wireless sensor network (WSN) in indoor environment, the indoor field intensity distribution and transmission characteristics of electromagnetic wave were researched. First of all, the 3D model in specific indoor environment was built by the finite difference time domain method (FDTD).Then, layout of room, different furniture, position of field source and field source frequency had an influence on indoor field intensity distribution that were studied

Song Yongxian, Zhang xianjin

International Journal on Smart Sensing and Intelligent Systems, Volume 9 , ISSUE 4, 1943–1970

Article | 20-September-2020

Poisson Weighted Ishita Distribution: Model for Analysis of Over-Dispersed Medical Count Data

A new over-dispersed discrete probability model is introduced, by compounding the Poisson distribution with the weighted Ishita distribution. The statistical properties of the newly introduced distribution have been derived and discussed. Parameter estimation has been done with the application of the maximum likelihood method of estimation, followed by the Monte Carlo simulation procedure to examine the suitability of the ML estimators. In order to verify the applicability of the proposed

Bilal Ahmad Para, Tariq Rashid Jan

Statistics in Transition New Series, Volume 21 , ISSUE 3, 171–184

Research Communicate | 18-March-2020

Alternative approach to moments of order statistics from one-parameter Weibull distribution

The Weibull distribution is used to describe various observed failures of phenomena and widely used in survival analysis and reliability theory. Sometimes it is very difficult to compute moments of such distributions due to various reasons for e.g. analytical issues, multi parameter cases etc. This study presents the computation of the moments and the expected value of the product of order statistics in the sample from the one-parameter Weibull distribution. An alternative approach in

Piyush Kant Rai, Anu Sirohi

Statistics in Transition New Series, Volume 21 , ISSUE 1, 169–178

Research Article | 10-April-2013

APPLICATION OF MULTI-FREQUENCY ELECTROMAGNETIC PROFILING IN STUDYING THE DISTRIBUTION OF BRONZE IN JINSHA RUIN WORSHIP

Like the Sanxingdui ruins, the Jinsha ruins are an important archaeological site in the Chengdu Plain. Excavation of these ruins may offer important evidence for the origins and evolution of the ancient Shu civilization. In order to protect historical relics during excavation, it is necessary to use a nondestructive approach when determining the distribution of those relics. Multi-frequency electromagnetic profiling is one nondestructive geophysical exploration technique. With this method

Wenfeng Zheng, Xiaolu Li, Nina Lam, Xuben Wang, Zhangli Sun, Shan Liu, Jinmei Yao

International Journal on Smart Sensing and Intelligent Systems, Volume 6 , ISSUE 2, 733–751

Article | 06-July-2017

VARIATIONAL APPROXIMATIONS FOR SELECTING HIERARCHICAL MODELS OF CIRCULAR DATA IN A SMALL AREA ESTIMATION APPLICATION

We consider hierarchical regression models for circular data using the projected normal distribution, applied in the development of weights for the Access Point Angler Intercept Survey, a recreational angling survey conducted by the US National Marine Fisheries Service. Weighted estimates of recreational fish catch are used in stock assessments and fisheries regulation. The construction of the survey weights requires the distribution of daily departure times of anglers from fishing sites

Daniel Hernandez-Stumpfhauser, F. Jay Breidt, Jean D. Opsomer

Statistics in Transition New Series, Volume 17 , ISSUE 1, 91–104

Article | 21-July-2017

Distribution and Longevity of Pratylenchus penetrans in the Red Raspberry Production System

time compared to untreated root material. In a second experiment, the vertical distribution of P. penetrans at three different times during the field establishment process (pre- and postfumigation, and at planting) was determined at two locations. Both locations had detectable prefumigation P. penetrans populations at all depths. However, postfumigation populations showed a different distribution pattern between locations. The location with coarser soil had populations located

DUNCAN R. KROESE, JERRY E. WEILAND, INGA A. ZASADA

Journal of Nematology, Volume 48 , ISSUE 4, 241–247

research-article | 30-November-2019

Prevalence of the root lesion nematode virus (RLNV1) in populations of Pratylenchus penetrans from North America

samples from the Pacific Northwest of North America by nematode diagnostic laboratories labs from 2012 to 2016 (Zasada et al., 2019). The objectives of this study were: to determine the distribution of the RLNV1 in geographically distinct P. penetrans populations obtained from different North American cropping systems and to assess genetic variability of the virus by comparing sequence variations of the helicase and RNA-dependent RNA polymerase (RdRP) regions of identified RLNV1 isolates from the P

Paulo Vieira, Amy Peetz, Benjamin Mimee, Kanan Saikai, Dimitre Mollov, Ann MacGuidwin, Inga Zasada, Lev G. Nemchinov

Journal of Nematology, Volume 52 , 1–10

Article | 04-September-2019

DECOMPOSITION OF GENDER WAGE GAP IN POLAND USING COUNTERFACTUAL DISTRIBUTION WITH SAMPLE SELECTION

In the paper, we compare income distributions in Poland taking into account gender differences. The gender pay gap can only be partially explained by differences in men’s and women’s characteristics. The unexplained part of the gap is usually attributed to the wage discrimination. The objective of this study is to extend the Oaxaca-Blinder decomposition procedure to different quantile points along the income distribution. We use the RIF-regression method to describe differences

Joanna Małgorzata Landmesser

Statistics in Transition New Series, Volume 20 , ISSUE 3, 171–186

Article | 04-November-2019

A MODEL OF TRANSIT FREIGHT DISTRIBUTION ON A RAILWAY  NETWORK

The peculiarity of the transit freight transportation by rail in international traffic is the fact that while performing transportation, the railway administrations are in competition among themselves. At the same time, the routes of cargo traffic volumes significantly depend on the conditions of transportation by railways of individual states. The mathematical model for the distribution of transit freight traffic volumes on the railway network, based on the methods of graph theory and game

Dmytro KOZACHENKO, Vladyslav SKALOZUB, Bogdan GERA, Yuliia HERMANIUK, Ruslana KOROBIOVA, Aleksandra GORBOVA

Transport Problems, Volume 14 , ISSUE 3, 17–26

research-article | 30-November-2018

Employment of PSO algorithm to improve the neural network technique for radial distribution system state estimation

Nomenclatures SE state estimation PS power system PSN power system networks PSO–NN particle swarm optimization–neural network DPN distribution power network RDPSNs radial distribution power system networks DMS distribution management system GTP graph theoretic procedure algorithm DSSE distribution system state estimation model WLS weighted least square WLAV weighted least absolute value PMUs phasor measurement units ANN artificial neural network

Husham Idan Hussein, Ghassan Abdullah Salman, Ahmed Majeed Ghadban

International Journal on Smart Sensing and Intelligent Systems , Volume 12 , ISSUE 1, 1–10

Research paper | 25-July-2017

Pharmacokinetics and pharmacodynamics of a novel Acetylcholinesterase Inhibitor, DMNG-3

biological samples was applied to study its pharmacokinetics and tissues distribution. Separation was achieved on C18 column using a mobile phase consisting methanol‑water (70:30, v/v) at a flow rate of 1.0 ml/min. The intra- and inter-day precisions were good and the RSD was all lower than 1.30%. The mean absolute recovery of DMNG-3 in plasma ranged from 88.55 to 96.45%. Our results showed oral administration of DMNG-3 (10, 25, 50 mg/kg/day) can significantly improve the latency and number of errors and

Xin-Guo Zhang, Fei Kou, Guo-Di MA, Peng Tang, Zhong-Duo Yang

Acta Neurobiologiae Experimentalis, Volume 76 , ISSUE 2, 117–124

Article | 03-July-2017

ESTIMATION OF THE CENTRAL MOMENTS OF A RANDOM VECTOR BASED ON THE DEFINITION OF THE POWER OF A VECTOR

The moments of a random vector based on the definition of the power of a vector, proposed by J. Tatar, are scalar and vector characteristics of a multivariate distribution. Analogously to the univariate case, we distinguish the uncorrected and the central moments of a random vector. Other characteristics of a multivariate distribution, i.e. an index of skewness and kurtosis, have been introduced by using the central moments of a random vector. For the application of the mentioned quantities for

Katarzyna Budny

Statistics in Transition New Series, Volume 18 , ISSUE 1, 1–20

Article | 24-November-2017

OPTIMIZATION OF THE POSITION OF THE LOCAL DISTRIBUTION CENTRE OF THE REGIONAL POST LOGISTICS NETWORK

postal logistics network. Published results is oriented to revaluate existing position of local centre and find a location for the new local distribution centre potentially. New location of local distribution centre can to optimize (minimize) the total transport costs of the local postal transportation network in area of the Lublin Province.

Paweł DROŹDZIEL, Monika WIŃSKA, Radovan MADLEŇÁK, Paweł SZUMSKI

Transport Problems, Volume 12 , ISSUE 3, 43–50

Article | 15-September-2020

Confidence bands for a distribution function with merged data from multiple sources

We consider nonparametric estimation of a distribution function when data are collected from multiple overlapping data sources. Main statistical challenges include (1) heterogeneity of data sets, (2) unidentified duplicated records across data sets, and (3) dependence due to sampling without replacement from a data source. The proposed estimator is computable without identifying duplication but corrects bias from duplicated records. We show the uniform consistency of the proposed estimator over

Takumi Saegusa

Statistics in Transition New Series, Volume 21 , ISSUE 4, 144–158

Article | 01-September-2015

DESIGN AND IMPLEMENTATION OF INTELLIGENT INTEGRATED MEASURING AND CONTROLLING SYSTEM FOR SUGAR CANE CRYSTALLIZATION PROCESS

The deficiency in existing sugar cane crystallization automatic control system is difficult to measure some key parameters on line, such as mother liquor supersaturation, mother liquor purity, crystal content and crystal size distribution. Controlling brix with PID can only reflect the massecuite concentration of sugar cane crystallization process, but it is hard to guarantee the crystal quality. During crystallization process, change of mother liquor purity will affect the crystallization rate

Yanmei Meng, Kangyuan Zheng, Wenxing Li, Haifeng Pang, Guancheng Lu, Guangquan Li

International Journal on Smart Sensing and Intelligent Systems, Volume 8 , ISSUE 3, 1687–1705

Research Article | 15-February-2020

In Situ Monitoring of Temperature Rise in Friction Surface Using Ultrasonic Technique

distribution beneath the surface. Those temperatures near the friction surface are quantitatively determined by an effective method consisting of ultrasonic pulseecho measurements and a finite difference calculation for estimating a one-dimensional temperature distribution along the direction of ultrasound propagation. The advantage of the method is that no boundary condition at the friction surface is needed. To demonstrate the practical feasibility of the method, the ultrasonic pulse echo measurements at

I. Ihara, S. Aoki

International Journal on Smart Sensing and Intelligent Systems, Volume 7 , ISSUE 5, 1–4

Article | 06-July-2017

DECOMPOSITION OF DIFFERENCES IN INCOME DISTRIBUTIONS USING QUANTILE REGRESSION

data from the Household Budget Survey for Poland in 2012. It was found that the tendency towards increased income inequalities between urban and rural residents when moving to the right of the income distribution can be observed. The rural residents are at a disadvantage. The decomposition of the inequalities revealed a growing share of the part explained by different characteristics of people and a declining share of the unexplained part, associated with the evaluation of those characteristics.

Joanna Małgorzata Landmesser

Statistics in Transition New Series, Volume 17 , ISSUE 2, 331–348

Article | 20-December-2020

The Gamma Kumaraswamy-G family of distributions: theory, inference and applications

In this paper, we introduce a new family of univariate continuous distributions called the Gamma Kumaraswamy-generated family of distributions. Most of its properties are studied in detail, including skewness, kurtosis, analytical comportments of the main functions, moments, stochastic ordering and order statistics. The next part of the paper focuses on a particular member of the family with four parameters, called the gamma Kumaraswamy exponential distribution. Among its advantages, the

Rana Muhammad Imran Arshad, Muhammad Hussain Tahir, Christophe Chesneau, Farrukh Jamal

Statistics in Transition New Series, Volume 21 , ISSUE 5, 17–40

Article | 20-December-2020

Comparing particulate matter dispersion in Thailand using the Bayesian Confidence Intervals for ratio of coefficients of variation

Recently, harmful levels of air pollution have been detected in many provinces of Thailand. Particulate matter (PM) contains microscopic solids or liquid droplets that are so small that they can be inhaled and cause serious health problems. A high dispersion of PM is measured by a coefficient of variation of log-normal distribution. Since the log-normal distribution is often used to analyse environmental data such as hazardous dust particle levels and daily rainfall data. These data focus the

Warisa Thangjai, Suparat Niwitpong

Statistics in Transition New Series, Volume 21 , ISSUE 5, 41–60

Research Article | 01-June-2020

Count copula regression model using generalized beta distribution of the second kind

Modelling claims severity for obtaining insurance premium is one of the major concerns of the insurance industry. There is a considerable amount of literature on the actuarial application of the copula model to calculate the pure premium. In this paper, we model claims severity for computing the pure premium in the collision market by means of the count copula model. Moreover, we apply a regression model using a generalized beta distribution of the second kind (GB2) to compute the premium for

Hadi Safari-Katesari, Samira Zaroudi

Statistics in Transition New Series, Volume 21 , ISSUE 2, 1–12

Research paper | 13-December-2018

COMPARISON OF DIABETIC NEPHROPATHY ONSET TIME OF TWO GROUPS WITH LEFT TRUNCATED AND RIGHT CENSORED DATA

The present paper is concerned with the comparison of the nephropathy onset time of type-2 diabetic patients, grouped on the basis of gender and age at the time of diabetes diagnosis. Diabetic Nephropathy (DN) onset time is assumed to follow Weibull distribution with fixed left truncation. The likelihood ratio test is applied on uncensored cases and Thoman and Bain two sample tests is applied with generated left truncated Weibull distributions. To avoid the model validity issues for left

Alka Sabharwal, Gurprit Grover

Statistics in Transition New Series, Volume 19 , ISSUE 3, 527–549

Article | 30-November-2018

Internet of Things Application in Satellite Communication in Power Transmission, Transform and Distribution

power system’s power generation, transmission, substation distribution and power consumption process. II. OVERVIEW OF SATELLITE COMMUNICATIONS IOT TECHNOLOGY SUPPORT A. Satellite communications overview Satellite mobile communication refers to the use of artificial earth satellites as relay stations to forward radio waves used for communication between mobile users or between mobile users and fixed users to achieve mobile communication between two or more points. Satellite communications

Dong Chuang

International Journal of Advanced Network, Monitoring and Controls, Volume 4 , ISSUE 4, 38–46

Article | 21-July-2017

Species Delimitation and Description of Mesocriconema nebraskense n. sp.(Nematoda: Criconematidae), a Morphologically Cryptic, Parthenogenetic Species from North American Grasslands

indicates North American grasslands contain at least 10 phylogenetically distinct lineages of Mesocriconema that resemble, but are not, M. curvatum. Analysis of the two most common lineages reveals two distinctly different population structures. The variation in population structure suggests unique evolutionary histories associated with their diversification. These two major lineages share a sympatric distribution and their slight morphological differences contrast with a high level

MAGDALENA OLSON, TIMOTHY HARRIS, REBECCA HIGGINS, PETER MULLIN, KIRSTEN POWERS, SEAN OLSON, THOMAS O. POWERS

Journal of Nematology, Volume 49 , ISSUE 1, 42–66

research-article | 17-April-2021

ANALYSIS OF FEES FOR CONNECTING THE INFRASTRUCTURE OF GENERALLY ACCESSIBLE CHARGING STATIONS TO NETWORKS WITH RATED VOLTAGE NOT HIGHER THAN 1 KV

their operation, intended for charging or refueling, in particular zero-emission buses used in public transport’’ [2, 3, 4, 5, 8]. The Energy Regulatory Office approved the applications of distribution system operators regarding the connection of electric car charging stations to their network. This office informs also that the amended tariffs include rates for connecting the road charging infrastructure of public transport and public charging stations [6]. In accordance with Electricity Law

Anna ŚLĘZAK

Architecture, Civil Engineering, Environment, Volume 14 , ISSUE 1, 107–114

Article | 06-July-2017

A TWO-COMPONENT NORMAL MIXTURE ALTERNATIVE TO THE FAY-HERRIOT MODEL

information. Even a small number of substantive outliers of random effects results in a large estimate of the random effects variance in the Fay-Herriot model, thereby achieving little shrinkage to the synthetic part of the model or little reduction in the posterior variance associated with the regular Bayes estimator for any of the small areas. While the scale mixture of normal distributions with a known mixing distribution for the random effects has been found to be effective in the presence of

Adrijo Chakraborty, Gauri Sankar Datta, Abhyuday Mandal

Statistics in Transition New Series, Volume 17 , ISSUE 1, 67–90

Research Article | 18-March-2020

Parametric prediction of finite population total under Informative sampling and nonignorable nonresponse

the dependence of the probability of nonresponse on unobserved or missing observations. The main aim of the paper is to consider how to account for the joint effects of informative sampling designs and notmissing-at-random response mechanism in statistical models for complex survey data. For this purpose, theoretically, we use the response distribution and relationships between the moments of the superpopoulation, the sample, sample-complement, response, and nonresponse distributions for the

Abdulhakeem Eideh

Statistics in Transition New Series, Volume 21 , ISSUE 1, 13–35

Article | 28-August-2018

RELIABILITY-BASED EVALUATION OF LOSS DUE TO DISTRIBUTION OF NONSTRUCTURAL COMPONENTS IN HEIGHT

nonstructural components in comparison to structural ones. This paper addresses the question of how to distribute nonstructural components in height of a building accounting for more reliable economic loss subjected to seismic excitation through application of fully probabilistic reliability approach. This purpose has been captured through proposing a new modified distribution of building nonstructural components in height for three typical steel moment frames and conducting comparative assessments for two

Leila HAJ NAJAFI, Mohsen TEHRANIZADEH

Architecture, Civil Engineering, Environment, Volume 10 , ISSUE 2, 77–98

Research Article | 13-June-2021

Spatial sampling methods modified by model use

Recent years have seen an intensive development in the field of spatial sampling methods, which generally focus on a balanced distribution of the sample in space. Adaptive sampling methods constitute another dynamic direction in the sampling theory. The issue raised in this article involves the combination of these directions. Five of the commonly known spatial sampling methods have been analysed. The experiment was designed to include statistical model in the sampling procedure. As in the case

Tomasz Bąk

Statistics in Transition New Series, Volume 22 , ISSUE 2, 143–154

Article | 09-August-2018

PERTURBATION NUMBERS – EVALUATION OF THE INFLUENCE OF THE UNCERTAINTY OF PARAMETERS ON UNIDIRECTIONAL TEMPERATURE DISTRIBUTION IN A PLATE  

This paper describes the issue of unidirectional temperature distribution in a plate with the assumption of perturbations in the problem parameters. The new algebraic perturbation system is proposed as a possible alternative to the traditional I-order perturbation methods. A calculation example is presented to compare the classical solution of a problem with that using perturbation numbers. The investigation of a possibility to apply the new algebraic system using a simple example represents an

Agnieszka Winkler-Skalna

Architecture, Civil Engineering, Environment, Volume 9 , ISSUE 1, 95–100

Research paper | 13-December-2017

DETERMINING THE STEP-CHANGE CONDUCTIVITY PROFILES WITHIN LAYERED METAL STRUCTURES USING INDUCTANCE SPECTROSCOPY

This paper presents an inverse method for determining the conductivity distribution of a flat, layered conductor using a multi-frequency electromagnetic sensor based on phase signature alone. Eddy current sensors are used in a wide range of non-destructive testing (NDT) applications. Single frequency sensors are very common, however, the potential of an eddy current sensor with spectroscopic techniques offer the ability to extract depth profiles and examine more fully the internal structure of

Wuliang Yin, Anthony J Peyton

International Journal on Smart Sensing and Intelligent Systems, Volume 1 , ISSUE 3, 812–823

Article | 22-July-2019

APPLICATION OF THE STRATEGY COMBINING MONETARY UNIT SAMPLING AND THE HORVITZ– THOMPSON ESTIMATOR OF ERROR AMOUNT IN AUDITING – RESULTS OF A SIMULATION STUDY

populations, the interval coverage rate was lower than the assumed confidence level. In most cases confidence intervals were too wide to be of practical use to auditors. Confidence intervals tended to become wider as the observed error rate increased. Tests disclosed the distribution of the HorvitzThompson estimator was not normal. A detailed analysis of the distributions of the error amount in the examined real audit populations is also given.

Bartłomiej Janusz

Statistics in Transition New Series, Volume 20 , ISSUE 2, 85–106

Article | 23-April-2018

Evaluation on Traffic Guidance Plan during Construction Period based on Vissim Simulation

, combining with the OD (Origin - Destination) distribution principle, the traffic impact of construction section is analyzed, the scope of influence is determined. The Taihangshan Road of Qingdao No.1 subway line is taken as an example, three evaluation indicators, such as: average delays, queue length, number of vehicles between OD points are selected combined with current traffic flow. The available traffic guiding schemes include temporary widening of roads, traffic management measures and

Zheng Huimin, Chen Xuan, Sun Zhanxian

International Journal of Advanced Network, Monitoring and Controls, Volume 2 , ISSUE 4, 181–185

research-article | 30-November-2017

POSITIONING TEMPERATURE SENSORS IN CONFINED SPACES SUBJECT TO VARIOUS EXOGENOUS IMPACTS

location for three temperature sensors (three sensors gives the minimal number of reference points which can be used to visualise the spatial distribution of investigated phenomena. A greater number of sensors can be used for more complex room layouts or perhaps when greater accuracy is required). Based on the proposed formula their readings will be used to estimate the temperature in the whole room. In the considered case, temperature sensors can be located only at the edges of the room. In reality

Grzegorz AUGUSTYN, Jakub JURASZ, Krzysztof JURCZYK, Tomasz KORBIEL, Rafał RUMIN, Jerzy MIKULIK

Architecture, Civil Engineering, Environment, Volume 11 , ISSUE 1, 5–14

Research paper | 01-November-2017

Triple-goal estimation of unemployment rates for U.S. states using the U.S. Current Population Survey data

;empirical distribution function (EDF) of true small area means, and the ranking of the small areas by true small area means. We achieve our goal using a Monte Carlo simulation experiment and a real data analysis.

Daniel Bonnéry, Yang Cheng, Neung Soo Ha, Partha Lahiri

Statistics in Transition New Series, Volume 16 , ISSUE 4, 511–522

Article | 05-September-2020

APPLICATION OF EYE-TRACKING TECHNOLOGY AS A DIAGNOSTIC TOOL FOR ASSESSING FLIGHT OPERATORS. PART 1: ANALISE OF FLIGHT OPERATOR'S ATTENTION DISTRIBUTION AND SWITCHING USING EYE-TRACKING

The paper presents the results of an experiment devoted to studying attention distribution and switching using eye-tracking technology. The experiment was conducted in two stages. At the first stage (year 2016), 48 students majoring in air traffic control were examined. At the second stage (year 2017), 43 students studying to become civil aviation pilots were involved. Correlation analysis methods and Pearson’s chi-squared test were used.

Olga ARINICHEVA, Natalia LEBEDEVA, Aleksei MALISHEVSKII

Transport Problems, Volume 15 , ISSUE 3, 167–179

Original Paper | 30-June-2018

Distribution of Cell Envelope Proteinases Genes among Polish Strains of Lactobacillus helveticus

production, bacterial growth rate in milk as well as liberation of biologically active peptides. The study reveals significant differences in the presence of various variants of CEPs encoding genes among ten novel Polish strains and indicates the intraspecific diversity exhibited by L. helveticus. In terms of distribution of CEPs genes, four different genetic profiles were found among the microorganisms analyzed. Furthermore, the strains exhibited also various levels of proteolytic activity. Molecular

KATARZYNA W. SKRZYPCZAK, WALDEMAR Z. GUSTAW, ADAM D. WAŚKO

Polish Journal of Microbiology, Volume 67 , ISSUE 2, 203–211

Article | 18-June-2020

APPLICATION OF THE CHOSEN MULTI-CRITERIA DECISION-MAKING METHODS TO IDENTIFY THE AUTONOMOUS TRAIN SYSTEM SUPPLIER

This paper addresses an application of the specific methods of multi-criteria decision analysis to specify the appropriate supplier of an autonomous train in a certain production–distribution company. This company identifies three potential suppliers dealing with the development and purchase of autonomous train systems. In terms of the multi-criteria decision analysis, the WSA method, the Scoring method and the TOPSIS method were used to define a suitable compromise solution. To apply

Ondrej STOPKA, Mária STOPKOVÁ, Vladimír ĽUPTÁK, Srećko KRILE

Transport Problems, Volume 15 , ISSUE 2, 45–57

Article | 20-December-2020

Estimating the population mean using a continuous sampling design dependent on an auxiliary variable

Continuous distribution of variables under study and auxiliary variables are considered. The purpose of the paper is to estimate the mean of the variable under study using a sampling design which is dependent on the observation of a continuous auxiliary variable in the whole population. Auxiliary variable values observed in this population allow to estimate the inclusion density function of the sampling design. The variance of the continuous version of the Horvitz-Thompson estimator under the

Janusz L. Wywiał

Statistics in Transition New Series, Volume 21 , ISSUE 5, 1–16

research-article | 30-November-2020

Integrative taxonomy, distribution, and host associations of Geocenamus brevidens and Quinisulcius capitatus from southern Alberta, Canada

were examined morphologically and identified as Geocenamus brevidens and Quinisulcius capitatus. Because both of these are considered plant-parasitic species in other countries (Smiley et al., 2006; Thompson et al., 2008), the aim of the present study was to (i) provide a detailed molecular and morphometric characterization of both species, (ii) provide extensive information on the species distribution and host associations, and (iii) study the phylogenetic relationship of G. brevidens and Q

Maria Munawar, Dmytro P. Yevtushenko, Pablo Castillo

Journal of Nematology, Volume 53 , 1–17

Article | 20-December-2020

Modelling bid-ask spread conditional distributions using hierarchical correlation reconstruction

expected value, but also the variance to determine the uncertainty of the prediction, or we can use the entire distribution for, e.g. more accurate further calculations or generating random values. 10-fold cross-validation log-likelihood tests were conducted for 22 DAX companies, leading to very accurate predictions, especially when individual models were used for each company, as significant differences were found between their behaviours. An additional advantage of using this methodology is that it

Jarosław Duda, Henryk Gurgul, Robert Syrek

Statistics in Transition New Series, Volume 21 , ISSUE 5, 99–118

research-article | 30-November-2018

Mapping the Distribution and Spread of Social Ties Over Time: A Case Study Using Facebook Friends

Individuals belong to geographically based social networks that include an individual’s ties (family, friends, professional contacts, etc.) in nearby and distant places (Acedo et al., 2017). A set of mapped ties comprises a spatial distribution, i.e., a unique “fingerprint” of geolocated social contacts (e.g., two friends in Rome, six family members in New York, a co-worker in Milan, etc.). This distribution is a natural part of social life, as humans have been “traveling, wandering and

Clio Andris, Sara E. Cavallo, Elizabeth A. Dzwonczyk, Laura Clemente-Harding, Carolynne Hultquist, Marie Ozanne

Connections: The Quarterly Journal, Volume 39 , ISSUE 1, 1–17

research-article | 23-April-2020

Spatial distribution and risk area assessment of Aphelenchoides besseyi using geostatistical approaches in Giridih district of Jharkhand, India

White tip nematode (Aphelenchoides besseyi) is one of most important shoot parasite of rice having global distribution and quarantine significance (Khan et al., 2012; Kyndt et al., 2014). This important nematode pest was first reported by Dastur (1936) from Chhattisgarh region of Madhya Pradesh, India. In late 70s, a serious outbreak of rice white tip nematode (RWTN) was observed in 60% of cultivated rice of India with severe infestation reported from the southern parts of the country

Sandip Mondal, Matiyar Rahaman Khan, Abhishek Mukherjee

Journal of Nematology, Volume 52 , 1–16

research-article | 30-November-2018

Diversity and seasonal fluctuation of tylenchid plant-parasitic nematodes in association with alfalfa in the Kerman Province (Iran)

main food source of domestic animals in the Kerman Province of Iran, which is in return the main income source of producers. Understanding distribution of most dominant plant-parasitic nematodes on alfalfa in Iran would provide better crop protection recommendations to alfalfa growers in Kerman Province, the main alfalfa production area, of Iran. Hence, the aim of this investigation was to determine the biodiversity, prominence and seasonal population fluctuations of plant-parasitic tylenchids that

Ebrahim Shokoohi, Phatu William Mashela, Fahimeh Iranpour

Journal of Nematology, Volume 51 , 1–14

Article | 01-March-2016

BASE BAND RESOURCE DISTRIBUTION UNDER C-RAN

Yanrong Niu

International Journal on Smart Sensing and Intelligent Systems, Volume 9 , ISSUE 1, 289–308

Research Article | 13-December-2017

INTELLIGENT STRUCTURAL ELEMENTS COVERED BY PIEZOELECTRIC HIGH-POLYMER FILM

If a piezoelectric material is deformed, the local electric field is caused by the electromechanical interaction. When a structural element with surface defects is subjected to the stress, the strain distribution appears also on the opposite surface to the defects. Such localized strain distribution can be measured by the electric potential distribution on a piezoelectric film mounted on the smooth surface. This paper shows that back-surface defects in typical structural elements can be

Eiji Matsumoto, Yuji Komagome

International Journal on Smart Sensing and Intelligent Systems, Volume 1 , ISSUE 2, 420–429

Article | 10-April-2018

Design and Development of Intelligent Logistics System Based on Semantic Web and Data Mining Technology

The intelligent logistics distribution of e-commerce is the computer technology and modern hardware equipment, software system and advanced management tools used by the logistics distribution enterprise. Data mining technology is the process of finding the probability distribution of random variables from a large number of source data. Automation of intelligent logistics system can improve labor productivity and reduce the error of logistics operation. This paper proposes design and development

Yi Wang, Xue Bai, Haoyuan Ou

International Journal of Advanced Network, Monitoring and Controls, Volume 2 , ISSUE 3, 163–167

Report | 01-December-2019

Blood group antigen distribution in Lao blood donors

Chirapha Keokhamphoui, Yupa Urwijitaroon, Douangchanh Kongphaly, Te Thammavong

Immunohematology, Volume 28 , ISSUE 4, 132–136

Article | 06-July-2017

INTERVAL ESTIMATION OF HIGHER ORDER QUANTILES. ANALYSIS OF ACCURACY OF SELECTED PROCEDURES

In the paper selected nonparametric and semiparametric estimation methods of higher orders quantiles are considered. The construction of nonparametric confidence intervals is based on order statistics of appropriate ranks from random samples or from generated bootstrap samples. Semiparametric bootstrap methods are characterized by double bootstrap simulations. The values of bootstrap sample below the prearranged threshold are generated by the empirical distribution and the values above this

Dorota Pekasiewicz

Statistics in Transition New Series, Volume 17 , ISSUE 4, 737–748

Article | 01-September-2015

MODELLING OF EQUIPMENT FAILURE RATE ACCOUNTING FOR THE UNCERTAINTY

A fuzzy model for failure rate with the consideration of the effects of uncertain factors in distribution reliability evaluation is presented. The possibility and credibility distribution analyzed on the basis of sample datum are used for quantifying effects of the uncertainty done to failure rate. Mathematically, the failure rate can be obtained in the interval integration. Moreover, aiming to make the calculating quantity of system reliability evaluation simple and easy, the fuzzy clustering

H.X. Tian, W.F Wu, P. Wang, H.Z. Li

International Journal on Smart Sensing and Intelligent Systems, Volume 8 , ISSUE 3, 1484–1504

Report | 09-October-2019

Distribution of blood groups in the Iranian general population

Ehsan Shahverdi, Mostafa Moghaddam, Ali Talebian, Hassan Abolghasemi

Immunohematology, Volume 32 , ISSUE 4, 135–139

Article | 15-September-2020

Model selection in radon data fusion

Fitting parametric models or the use of the empirical cumulative distribution function are problematic when it comes to the estimation of tail probabilities from small samples. A possible remedy is to fuse or combine the small samples with additional data from external sources and base the inference on the so called density ratio model with variable tilt functions, which widens the support of the estimated distribution of interest. This approach is illustrated using residential radon

Xuze Zhang, Saumyadipta Pyne, Benjamin Kedem

Statistics in Transition New Series, Volume 21 , ISSUE 4, 159–165

Article | 30-November-2018

Solutions for Governance and Suppression of Power Harmonic in Cities

utility grid management and power harmonics restraining. Despite of its merits such as simple structure, low cost, reliable running and low-cost operating, still the harmonic governance effect is not ideal, and could lead to new problems such as oscillation of power supply and distribution system and harmonic amplification. [14] 3)Using active power filter (APF) for harmonic governance. The active power filter (APF) is a new type of special equipment based on modern power electronic technology and

Li Xiangchu, Zhang wei

International Journal of Advanced Network, Monitoring and Controls, Volume 3 , ISSUE 4, 35–39

Article | 01-December-2014

A SELF-ADAPTIVE DATA BALANCE PROTOCOL FOR DISTRIBUTED RADIO FREQUENCY IDENTIFICATION SENSOR NETWORK

In this paper, we share our recent work related to Radio Frequency Identification (RFID) sensor network with readers. The work mainly focus on the protocol for network system to perform the task of autonomous decentralized data distribution with consideration of economic and low-power RFID-sensor module scheme. We analyzed data pitfall in distributed RFID-sensor network, revealing the reason lies in the phenomenon. A distributed solution to tackle the problem has been designed in a simple way

Charles Z. Liew, Raymond P. Shaw, Ting-Ting Zhang

International Journal on Smart Sensing and Intelligent Systems, Volume 7 , ISSUE 4, 1535–1554

Article | 26-March-2020

MULTI-CRITERIA EVALUATION OF E-SHOP METHODS OF DELIVERY FROM THE CUSTOMER'S PERSPECTIVE

This article focuses on the multi-criteria evaluation of various delivery options in the conditions of chosen e-shop, from the customer’s perspective. The evaluations were performed on conditions of the most popular e-shop in Slovakia and the customer segment was represented by a group of people of productive age. For the multicriteria analysis, the TOPSIS method was chosen. We identified four basic distribution options in the selected e-shop and nine evaluation criteria. The results of

Radovan MADLEŇÁK, Lucia MADLEŇÁKOVÁ

Transport Problems, Volume 15 , ISSUE 1, 5–14

research-article | 30-November-2017

RANDOM STRENGTH PARAMETERS OF STEEL CORRUGATED WEBS AND THEIR INFLUENCE ON THE RESISTANCE OF SIN PLATE GIRDERS

lower quantile. On the basis of structural analysis, partial factors for material properties γm of the steel of corrugated webs were analysed. As regards probability density distribution Re, the parameters of normal distribution were applied [20]. The variance D2(Re) and standard deviation D(Re) of yield strength were determined for the examined samples. For the determined parameters of normal distribution of yield strength Re, characteristic values Rek or 5% fractile recommended by the standard PN

Witold BASIŃSKI, Zbigniew KOWAL

Architecture, Civil Engineering, Environment, Volume 11 , ISSUE 3, 65–77

Article | 01-September-2015

RESEARCH ON LATERAL STABILITY OF FOUR HUBMOTOR- IN-WHEELS DRIVE ELECTRIC VEHICLE

This paper focuses on the problem of lateral stability of four hub-motor-in-wheels drive electric vehicle, 7 DOF (degrees of freedom) vehicle simulation model which is verified by field test is established based on Matlab/Simulink software. On basis of simulated model, BP neural network PID torque distribution controller of lateral stability is proposed. The sideslip angle at mass center and yaw rate are selected as the control variables, and the BP neural network PID torque distribution

Biao Jin, Chuanyang Sun, Xin Zhang

International Journal on Smart Sensing and Intelligent Systems, Volume 8 , ISSUE 3, 1855–1875

Research Article | 14-February-2019

IDENTIFYING WAREHOUSE LOCATION USING THE RADIATION THERAPY METHOD IN LOGISTIC DISTRIBUTION SYSTEM

Viktor DANCHUK, Olena BAKULICH, Vitaliy SVATKO

Transport Problems, Volume 13 , ISSUE 4, 144–155

Research Article | 15-August-2017

Description and Distribution of Three Criconematid Nematodes from Hangzhou, Zhejiang Province, China

Maria Munawar, Thomas O. Powers, Zhongling Tian, Timothy Harris, Rebecca Higgins, Jingwu Zheng

Journal of Nematology, Volume 50 , ISSUE 2, 183–206

Sampling Methods | 20-November-2017

ON ASYMMETRY OF PREDICTION ERRORS IN SMALL AREA ESTIMATION

The mean squared error reflects only the average prediction accuracy while the distribution of squared prediction error is positively skewed. Hence, assessing or comparing accuracy based on the MSE (which is the mean of squared errors) is insufficient and even inadequate because we should be interested not only in the average but in the whole distribution of prediction errors. This is the reason why we propose to use different than MSE measures of prediction accuracy in small area estimation

Tomasz Żądło

Statistics in Transition New Series, Volume 18 , ISSUE 3, 413–432

Research Article | 22-July-2018

ON MEASURING POLARIZATION FOR ORDINAL DATA: AN APPROACH BASED ON THE DECOMPOSITION OF THE LETI INDEX

This paper deals with the measurement of polarization for ordinal data. Polarization in the distribution of an ordinal variable is measured by using the decomposition of the Leti heterogeneity index. The ratio of the between-group component of the index to the within-group component is used to measure the degree of polarization for an ordinal variable. This polarization measure does not require imposing cardinality on ordered categories to quantify the degree of polarization in the distribution

Mauro Mussini

Statistics in Transition New Series, Volume 19 , ISSUE 2, 277–296

Research Article | 04-September-2019

CHARACTERIZATION OF THE SUM OF BINOMIAL RANDOM VARIABLES UNDER RANKED SET SAMPLING

Vivek Verma, Dilip C. Nath

Statistics in Transition New Series, Volume 20 , ISSUE 3, 1–29

Article | 11-April-2018

Key Point Detection in Images Based on Triangle Distribution of Directed Complex Network

Qingyu Zou, Jianwen Guan, Jing Bai, Weiliang Sun

International Journal of Advanced Network, Monitoring and Controls, Volume 2 , ISSUE 3, 190–193

Research Article | 21-April-2017

AN EXPERIMENTAL RESEARCH ON THE WEAR OF TRUCK TIRE

Summary. An experimental device and methodology for tire wear investigation are presented. An indirect method for wear evaluating is used. The experimental results in cases of straight motion with and without side slip are obtained. The distribution of wearing on tread pattern wide is evaluated in different running conditions.

Rosen IVANOV, Krasimir GEORGIEV, Georgi KADIKYANOV, Gergana STANEVA

Transport Problems, Volume 10 , ISSUE 4, 91–98

Article | 06-July-2017

BAYESIAN INFERENCE FOR STATE SPACE MODEL WITH PANEL DATA

Ranjita Pandey, Anoop Chaturvedi

Statistics in Transition New Series, Volume 17 , ISSUE 2, 211–219

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