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51 Results Found

  • Article
  • Open Access
2 Citations
1,814 Views
17 Pages

Decay Branch Ratio Sampling Method with Dirichlet Distribution

  • Yizhen Wang,
  • Menglei Cui,
  • Jiong Guo,
  • Han Zhang,
  • Yingjie Wu and
  • Fu Li

16 February 2023

The decay branch ratio is evaluated nuclear data related to the decay heat calculation in reactor safety analysis. Decay branch ratio data are inherently subjected to the “sum-to-one” constraint, making it difficult to generate perturbed...

  • Article
  • Open Access
2 Citations
1,892 Views
10 Pages

11 February 2022

Dong, Goldschmidt and Martin (2006) (DGM) showed that, for 0<α<1, and θ>−α, the repeated application of independent single-block fragmentation operators based on mass partitions following a two-parameter Poisson&ndash...

  • Article
  • Open Access
6 Citations
2,667 Views
13 Pages

29 September 2022

The high accuracy attainment, using less complex architectures of neural networks, remains one of the most important problems in machine learning. In many studies, increasing the quality of recognition and prediction is obtained by extending neural n...

  • Article
  • Open Access
1 Citations
1,995 Views
21 Pages

Distributionally Robust Unit Commitment with N-k Security Criterion and Operational Flexibility of CSP

  • Younan Pei,
  • Xueshan Han,
  • Pingfeng Ye,
  • Yumin Zhang,
  • Mingbing Li and
  • Huizong Mao

5 December 2022

In order to reduce the conservatism of the robust optimization method and the complexity of the stochastic optimization method and to enhance the ability of power systems to deal with occasional line fault disturbance, this paper proposes a distribut...

  • Article
  • Open Access
15 Citations
4,879 Views
26 Pages

Future Projections and Uncertainty Assessment of Precipitation Extremes in the Korean Peninsula from the CMIP6 Ensemble with a Statistical Framework

  • Yonggwan Shin,
  • Yire Shin,
  • Juyoung Hong,
  • Maeng-Ki Kim,
  • Young-Hwa Byun,
  • Kyung-On Boo,
  • Il-Ung Chung,
  • Doo-Sun R. Park and
  • Jeong-Soo Park

11 January 2021

Scientists occasionally predict projected changes in extreme climate using multi-model ensemble methods that combine predictions from individual simulation models. To predict future changes in precipitation extremes in the Korean peninsula, we examin...

  • Article
  • Open Access
1 Citations
2,707 Views
18 Pages

Compositional Data Modeling through Dirichlet Innovations

  • Seitebaleng Makgai,
  • Andriette Bekker and
  • Mohammad Arashi

3 October 2021

The Dirichlet distribution is a well-known candidate in modeling compositional data sets. However, in the presence of outliers, the Dirichlet distribution fails to model such data sets, making other model extensions necessary. In this paper, the Kumm...

  • Article
  • Open Access
2,736 Views
12 Pages

Parameter Estimation of the Dirichlet Distribution Based on Entropy

  • Büşra Şahin,
  • Atıf Ahmet Evren,
  • Elif Tuna,
  • Zehra Zeynep Şahinbaşoğlu and
  • Erhan Ustaoğlu

5 October 2023

The Dirichlet distribution as a multivariate generalization of the beta distribution is especially important for modeling categorical distributions. Hence, its applications vary within a wide range from modeling cell probabilities of contingency tabl...

  • Article
  • Open Access
1 Citations
2,200 Views
19 Pages

Tsallis and Other Generalised Entropy Forms Subject to Dirichlet Mixture Priors

  • Johannes T. Ferreira,
  • Tanita Botha and
  • Andriette Bekker

28 May 2022

Entropy indicates a measure of information contained in a complex system, and its estimation continues to receive ongoing focus in the case of multivariate data, particularly that on the unit simplex. Oftentimes the Dirichlet distribution is employed...

  • Article
  • Open Access
2 Citations
2,080 Views
15 Pages

13 November 2021

In the 1920s, the English philosopher W.E. Johnson introduced a characterization of the symmetric Dirichlet prior distribution in terms of its predictive distribution. This is typically referred to as Johnson’s “sufficientness” postulate, and it has...

  • Article
  • Open Access
41 Citations
12,858 Views
18 Pages

10 May 2013

Mutual information (MI) quantifies the statistical dependency between a pair of random variables, and plays a central role in the analysis of engineering and biological systems. Estimation of MI is difficult due to its dependence on an entire joint d...

  • Article
  • Open Access
1 Citations
1,990 Views
14 Pages

Dependence Structure Analysis and Its Application in Human Microbiome

  • Shilan Li,
  • Jianxin Shi,
  • Paul Albert and
  • Hong-Bin Fang

20 December 2022

The human microbiome has been recently shown to be associated with disease risks and has important implications in risk stratification and precision medicine. Due to abundant taxa in the human body, microbiome data are high-dimensional and compositio...

  • Article
  • Open Access
2,904 Views
32 Pages

In actuarial practice, the modeling of total losses tied to a certain policy is a nontrivial task due to complex distributional features. In the recent literature, the application of the Dirichlet process mixture for insurance loss has been proposed...

  • Article
  • Open Access
21 Citations
5,501 Views
13 Pages

26 January 2023

Human activity recognition (HAR) has become an interesting topic in healthcare. This application is important in various domains, such as health monitoring, supporting elders, and disease diagnosis. Considering the increasing improvements in smart de...

  • Article
  • Open Access
2 Citations
1,785 Views
31 Pages

Hidden Variable Models in Text Classification and Sentiment Analysis

  • Pantea Koochemeshkian,
  • Eddy Ihou Koffi and
  • Nizar Bouguila

In this paper, we are proposing extensions to the multinomial principal component analysis (MPCA) framework, which is a Dirichlet (Dir)-based model widely used in text document analysis. The MPCA is a discrete analogue to the standard PCA (it operate...

  • Article
  • Open Access
1 Citations
2,348 Views
30 Pages

12 January 2023

We study two types of probability measures on the set of integer partitions of n with at most m parts. The first one chooses the partition with a chance related to its largest part only. We obtain the limiting distributions of all of the parts togeth...

  • Article
  • Open Access
3 Citations
4,344 Views
26 Pages

Null Models for Formal Contexts

  • Maximilian Felde,
  • Tom Hanika and
  • Gerd Stumme

28 February 2020

Null model generation for formal contexts is an important task in the realm of formal concept analysis. These random models are in particular useful for, but not limited to, comparing the performance of algorithms. Nonetheless, a thorough investigati...

  • Article
  • Open Access
3 Citations
2,976 Views
13 Pages

30 April 2021

A generalized mathematical model of the radial groundwater flow to or from a well is studied using the time-fractional derivative with Mittag-Lefler kernel. Two temporal orders of fractional derivatives which characterize small and large pores are co...

  • Article
  • Open Access
2 Citations
2,931 Views
27 Pages

18 February 2019

This article provides a review of the saddlepoint approximation for a M-statistic of a sample of nonnegative random variables with fixed sum. The sample vector follows the multinomial, the multivariate hypergeometric, the multivariate Polya or the Di...

  • Article
  • Open Access
5 Citations
2,088 Views
11 Pages

Learning Latent Jet Structure

  • Barry M. Dillon,
  • Darius A. Faroughy,
  • Jernej F. Kamenik and
  • Manuel Szewc

29 June 2021

We summarize our recent work on how to infer on jet formation processes directly from substructure data using generative statistical models. We recount in detail how to cast jet substructure observables’ measurements in terms of Bayesian mixed member...

  • Article
  • Open Access
2 Citations
2,277 Views
15 Pages

14 October 2022

In the development of simplex mixed-effects models, random effects in these mixed-effects models are generally distributed in normal distribution. The normality assumption may be violated in an analysis of skewed and multimodal longitudinal data. In...

  • Article
  • Open Access
4 Citations
8,475 Views
22 Pages

On a Dynamical Approach to Some Prime Number Sequences

  • Lucas Lacasa,
  • Bartolome Luque,
  • Ignacio Gómez and
  • Octavio Miramontes

19 February 2018

We show how the cross-disciplinary transfer of techniques from dynamical systems theory to number theory can be a fruitful avenue for research. We illustrate this idea by exploring from a nonlinear and symbolic dynamics viewpoint certain patterns eme...

  • Article
  • Open Access
20 Citations
3,200 Views
32 Pages

A Robust Dirichlet Reputation and Trust Evaluation of Nodes in Mobile Ad Hoc Networks

  • Eric Chiejina,
  • Hannan Xiao,
  • Bruce Christianson,
  • Alexios Mylonas and
  • Chidinma Chiejina

12 January 2022

The distributed nature of mobile ad hoc networks (MANETs) presents security challenges and vulnerabilities which sometimes lead to several forms of attacks. To improve the security in MANETs, reputation and trust management systems (RTMS) have been d...

  • Article
  • Open Access
4 Citations
2,170 Views
16 Pages

17 January 2023

A general single-node second-order Dirichlet boundary condition for curved boundaries for the convection–diffusion equation based on the lattice Boltzmann method has been developed. The boundary condition simply utilizes the bounce back rule fo...

  • Article
  • Open Access
3,315 Views
14 Pages

Graph variational auto-encoder (GVAE) is a model that combines neural networks and Bayes methods, capable of deeper exploring the influential latent features of graph reconstruction. However, several pieces of research based on GVAE employ a plain pr...

  • Article
  • Open Access
1,787 Views
16 Pages

A general approach to solving the Dirichlet problem, both for bounded 3D domains and for their unbounded complements, in terms of the fractional (3D) Poisson equation, is presented. Lauren Schwartz class solutions are sought for tempered distribution...

  • Article
  • Open Access
627 Views
16 Pages

30 June 2025

With the rapid development of digital technologies, data-driven methods have demonstrated commendable performance in the toxic text detection task. However, several challenges remain unresolved, including the inability to fully capture the nuanced se...

  • Article
  • Open Access
6 Citations
3,839 Views
12 Pages

29 July 2017

In a given problem, the Bayesian statistical paradigm requires the specification of a prior distribution that quantifies relevant information about the unknowns of main interest external to the data. In cases where little such information is availabl...

  • Article
  • Open Access
15 Citations
4,615 Views
21 Pages

Minimum Description Length Codes Are Critical

  • Ryan John Cubero,
  • Matteo Marsili and
  • Yasser Roudi

1 October 2018

In the Minimum Description Length (MDL) principle, learning from the data is equivalent to an optimal coding problem. We show that the codes that achieve optimal compression in MDL are critical in a very precise sense. First, when they are taken as g...

  • Article
  • Open Access
2 Citations
2,553 Views
19 Pages

Analysis of the spatiotemporal distribution of online public opinion topics can help understand the hotspots of public concern. The topic model is employed widely in public opinion topic clustering for social media data. In order to handle topic-clus...

  • Article
  • Open Access
4 Citations
4,005 Views
36 Pages

This article concerns the basic understanding of parabolic final value problems, and a large class of such problems is proved to be well posed. The clarification is obtained via explicit Hilbert spaces that characterise the possible data, giving exis...

  • Article
  • Open Access
2 Citations
2,339 Views
27 Pages

Mixture of Species Sampling Models

  • Federico Bassetti and
  • Lucia Ladelli

4 December 2021

We introduce mixtures of species sampling sequences (mSSS) and discuss how these sequences are related to various types of Bayesian models. As a particular case, we recover species sampling sequences with general (not necessarily diffuse) base measur...

  • Article
  • Open Access
35 Citations
5,200 Views
18 Pages

17 April 2018

The code reviewer assignment problem affects the reviewing time of a source code change. To effectively perform the code review process of a software project, the code reviewer assignment problem must be dealt with. Reviewer recommendation can reduce...

  • Article
  • Open Access
7 Citations
1,671 Views
17 Pages

10 September 2022

The main aim of this paper is to investigate the solvability of the steady-state flow model for low-concentrated aqueous polymer solutions with a damping term in a bounded domain under the no-slip boundary condition. Mathematically, the model under c...

  • Feature Paper
  • Article
  • Open Access
1 Citations
2,267 Views
21 Pages

2 November 2022

A diffusion-taking value in probability-measures on a graph with vertex set V, ∑i∈Vxiδi is studied. The masses on each vertex satisfy the stochastic differential equation of the form dxi=∑j∈N(i)xixjdBij on the simplex, where {...

  • Article
  • Open Access
9 Citations
4,723 Views
21 Pages

Online public opinion reflects social conditions and public attitudes regarding special social events. Therefore, analyzing the temporal and spatial distributions of online public opinion topics can contribute to understanding issues of public concer...

  • Article
  • Open Access
5 Citations
4,690 Views
16 Pages

Hot Topic Community Discovery on Cross Social Networks

  • Xuan Wang,
  • Bofeng Zhang and
  • Furong Chang

The rapid development of online social networks has allowed users to obtain information, communicate with each other and express different opinions. Generally, in the same social network, users tend to be influenced by each other and have similar vie...

  • Article
  • Open Access
7 Citations
2,976 Views
19 Pages

30 April 2023

For indoor localisation, a challenge in data-driven localisation is to ensure sufficient data to train the prediction model to produce a good accuracy. However, for WiFi-based data collection, human effort is still required to capture a large amount...

  • Article
  • Open Access
1,699 Views
22 Pages

Research into Robust Federated Learning Methods Driven by Heterogeneity Awareness

  • Junhui Song,
  • Zhangqi Zheng,
  • Afei Li,
  • Zhixin Xia and
  • Yongshan Liu

13 July 2025

Federated learning (FL) has emerged as a prominent distributed machine learning paradigm that facilitates collaborative model training across multiple clients while ensuring data privacy. Despite its growing adoption in practical applications, perfor...

  • Article
  • Open Access
2 Citations
2,193 Views
19 Pages

Bayesian Non-Parametric Thermal Thresholds for Helicoverpa armigera and Their Integration into a Digital Plant Protection System

  • Petros Damos,
  • Fokion Papathanasiou,
  • Evaggelos Tsikos,
  • Thomas Kyriakidis and
  • Malamati Louta

11 October 2022

The development of temperature-driven pest risk thresholds is a prerequisite for the buildup and implementation of smart plant protection solutions. However, the challenge is to convert short and abrupt phenology data with limited distributional info...

  • Article
  • Open Access
2,765 Views
28 Pages

We show how modern Bayesian Machine Learning tools can be effectively used in order to develop efficient methods for filtering Earth Observation signals. Bayesian statistical methods can be thought of as a generalization of the classical least-square...

  • Article
  • Open Access
307 Views
28 Pages

27 November 2025

The sixth-generation (6G) system has been attracting increasing attention from both industry and academia, with the space–air–ground integrated network (SAGIN) identified as one of its key applications. This study investigates a SAGIN fra...

  • Feature Paper
  • Article
  • Open Access
8 Citations
8,793 Views
18 Pages

Uncertainty Analysis of Business Interruption Losses in the Philippines Due to the COVID-19 Pandemic

  • Joost R. Santos,
  • John Frederick D. Tapia,
  • Albert Lamberte,
  • Christine Alyssa Solis,
  • Raymond R. Tan,
  • Kathleen B. Aviso and
  • Krista Danielle S. Yu

19 August 2022

In this study, we utilize an input–output (I–O) model to perform an ex-post analysis of the COVID-19 pandemic workforce disruptions in the Philippines. Unlike most disasters that debilitate physical infrastructure systems, the impact of d...

  • Article
  • Open Access
1,057 Views
29 Pages

Fuzzy Multi-Criteria Decision Framework for Asteroid Selection in Boulder Capture Missions

  • Nelson Ramírez,
  • Juan Miguel Sánchez-Lozano and
  • Eloy Peña-Asensio

4 September 2025

A systematic fuzzy multi-criteria decision making (MCDM) framework is proposed to prioritize near-Earth asteroids (NEAs) for a boulder capture mission, addressing the requirement for rigorous prioritization of asteroid candidates under conditions of...

  • Article
  • Open Access
14 Citations
4,156 Views
20 Pages

Applying Text Analytics for Studying Research Trends in Dependability

  • Miriam Louise Carnot,
  • Jorge Bernardino,
  • Nuno Laranjeiro and
  • Hugo Gonçalo Oliveira

16 November 2020

The dependability of systems and networks has been the target of research for many years now. In the 1970s, what is now known as the top conference on dependability—The IEEE/IFIP International Conference on Dependable Systems and Networks (DSN)...

  • Article
  • Open Access
3 Citations
4,448 Views
28 Pages

24 August 2024

Innovative Industrial Clusters (IIC), characterized by geographical aggregation and technological collaboration among technology enterprises and institutions, serve as pivotal drivers of regional economic competitiveness and technological advancement...

  • Review
  • Open Access
38 Citations
5,166 Views
13 Pages

Trends in Diatom Research Since 1991 Based on Topic Modeling

  • Yun Zhang,
  • Juan Tao,
  • Jun Wang,
  • Liuyong Ding,
  • Chengzhi Ding,
  • Yanling Li,
  • Qichao Zhou,
  • Dunhai Li and
  • Hucai Zhang

Diatoms are fundamental carbon sources in a wide range of aquatic food webs and have the potential for wide application in addressing environmental change. Understanding the evolution of topics in diatom research will provide a clear and needed guide...

  • Article
  • Open Access
2 Citations
975 Views
17 Pages

18 September 2025

The growing prevalence of digital labor platforms has fundamentally transformed business models by creating interconnected value systems that redefine how work is organized, delivered, and monetized in today’s digital economy. This study examin...

  • Article
  • Open Access
9 Citations
3,068 Views
17 Pages

2 July 2021

Disaster-related social media data often consist of several themes, and each theme allows people to understand and communicate from a certain perspective. It is necessary to take into consideration the dynamics of thematic emphases on social media in...

  • Article
  • Open Access
12 Citations
2,612 Views
19 Pages

Recognizing Urban Functional Zones by GF-7 Satellite Stereo Imagery and POI Data

  • Zhenhui Sun,
  • Peihang Li,
  • Dongchuan Wang,
  • Qingyan Meng,
  • Yunxiao Sun and
  • Weifeng Zhai

22 May 2023

The identification of urban functional zones (UFZs) is crucial for urban planning and optimizing industrial layout. Fusing remote sensing images and social perception data is an effective way to identify UFZs. Previous studies on UFZs recognition oft...

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