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511 Results Found

  • Article
  • Open Access
107 Citations
4,994 Views
18 Pages

A Compact Bat Algorithm for Unequal Clustering in Wireless Sensor Networks

  • Trong-The Nguyen,
  • Jeng-Shyang Pan and
  • Thi-Kien Dao

14 May 2019

Everyday, a large number of complex scientific and industrial problems involve finding an optimal solution in a large solution space. A challenging task for several optimizations is not only the combinatorial operation but also the constraints of ava...

  • Article
  • Open Access
17 Citations
4,817 Views
25 Pages

Deep-Compact-Clustering Based Anomaly Detection Applied to Electromechanical Industrial Systems

  • Francisco Arellano-Espitia,
  • Miguel Delgado-Prieto,
  • Artvin-Darien Gonzalez-Abreu,
  • Juan Jose Saucedo-Dorantes and
  • Roque Alfredo Osornio-Rios

30 August 2021

The rapid growth in the industrial sector has required the development of more productive and reliable machinery, and therefore, leads to complex systems. In this regard, the automatic detection of unknown events in machinery represents a greater cha...

  • Article
  • Open Access
5 Citations
6,351 Views
16 Pages

13 April 2015

Aiming at improving the well-known fuzzy compactness and separation algorithm (FCS), this paper proposes a new clustering algorithm based on feature weighting fuzzy compactness and separation (WFCS). In view of the contribution of features to cluster...

  • Article
  • Open Access
8 Citations
4,137 Views
16 Pages

28 April 2019

The belief rule-based classification system (BRBCS) is a promising technique for addressing different types of uncertainty in complex classification problems, by introducing the belief function theory into the classical fuzzy rule-based classificatio...

  • Article
  • Open Access
10 Citations
6,039 Views
20 Pages

11 August 2014

A cognitive radio sensor network (CRSN) is a wireless sensor network whose sensor nodes are equipped with cognitive radio capability. Clustering is one of the most challenging issues in CRSNs, as all sensor nodes, including the cluster head, have to...

  • Article
  • Open Access
4 Citations
1,715 Views
14 Pages

19 September 2023

The generation and analysis of vast amounts of data have become increasingly prevalent in diverse applications. In this study, we propose a novel approach to address the challenge of rule explosion in association rule mining by utilizing the coverage...

  • Article
  • Open Access
3 Citations
2,131 Views
23 Pages

Revealing Topsoil Behavior to Compaction from Mining Field Observations

  • Anne C. Richer-de-Forges,
  • Dominique Arrouays,
  • Zamir Libohova,
  • Songchao Chen,
  • Dylan E. Beaudette and
  • Hocine Bourennane

22 June 2024

Soils are a finite resource that is under threat, mainly due to human pressure. Therefore, there is an urgent need to produce maps of soil properties, functions and behaviors that can support land management and various stakeholders’ decisions....

  • Article
  • Open Access
4 Citations
2,383 Views
26 Pages

18 May 2021

This paper presents an unsupervised feature selection method for multi-dimensional histogram-valued data. We define a multi-role measure, called the compactness, based on the concept size of given objects and/or clusters described using a fixed numbe...

  • Article
  • Open Access
1 Citations
2,457 Views
23 Pages

Mapping Topsoil Behavior to Compaction at National Scale from an Analysis of Field Observations

  • Anne C. Richer-de-Forges,
  • Dominique Arrouays,
  • Songchao Chen,
  • Zamir Libohova,
  • Dylan E. Beaudette and
  • Hocine Bourennane

8 July 2024

Soil compaction is one of the most important and readily mitigated threats to soil health. Digital Soil Mapping (DSM) has emerged as an efficient method to provide broad-scale maps by combining soil information with environmental covariates. Until no...

  • Article
  • Open Access
2 Citations
3,089 Views
30 Pages

Improvement in Physiochemical Characteristics of ‘Prime Seedless’ Grapes by Basal Defoliation with Foliar-Sprayed Low-Biuret Urea and Cyanocobalamin under Mediterranean Climate

  • Ahmed F. Abd El-Khalek,
  • Yasser S. A. Mazrou,
  • Harlene M. Hatterman-Valenti,
  • Ashraf A. Awadeen,
  • Shimaa M. M. El-Mogy,
  • Mosaad A. El-Kenawy,
  • Bassam E. A. Belal,
  • Mahmoud A. Mohamed,
  • Islam F. Hassan and
  • Shamel M. Alam-Eldein
  • + 3 authors

14 April 2024

In viticulture, the main target is to achieve high yield and good fruit quality without compromising vine growth. Methods to achieve this balance will vary with regard to climate and cultivar. A two-year study was conducted on five-year-old ‘Pr...

  • Article
  • Open Access
7 Citations
3,467 Views
29 Pages

Compact Hybrid Multi-Color Space Descriptor Using Clustering-Based Feature Selection for Texture Classification

  • Mohamed Alimoussa,
  • Alice Porebski,
  • Nicolas Vandenbroucke,
  • Sanaa El Fkihi and
  • Rachid Oulad Haj Thami

Color texture classification aims to recognize patterns by the analysis of their colors and their textures. This process requires using descriptors to represent and discriminate the different texture classes. In most traditional approaches, these des...

  • Article
  • Open Access
1 Citations
1,320 Views
20 Pages

25 July 2025

Multiple cluster validity indices (CVIs) have been introduced for diverse applications. In practice, clusters exhibit varying shapes, sizes, densities, and closely spaced centers, which are typically unknown beforehand. It is desirable to develop a v...

  • Article
  • Open Access
13 Citations
3,962 Views
19 Pages

VviUCC1 Nucleotide Diversity, Linkage Disequilibrium and Association with Rachis Architecture Traits in Grapevine

  • Javier Tello,
  • Rafael Torres-Pérez,
  • Timothée Flutre,
  • Jérôme Grimplet and
  • Javier Ibáñez

29 May 2020

Cluster compactness is a trait with high agronomic relevance, affecting crop yield and grape composition. Rachis architecture is a major component of cluster compactness determinism, and is a target trait toward the breeding of grapevine varieties le...

  • Article
  • Open Access
7 Citations
4,855 Views
24 Pages

7 February 2022

Compactness and separability of data points are two important properties that contribute to the accuracy of machine learning tasks such as classification and clustering. We propose a framework that enhances the goodness criteria of the two properties...

  • Article
  • Open Access
22 Citations
4,895 Views
15 Pages

Distribution of Charged Residues Affects the Average Size and Shape of Intrinsically Disordered Proteins

  • Greta Bianchi,
  • Marco Mangiagalli,
  • Alberto Barbiroli,
  • Sonia Longhi,
  • Rita Grandori,
  • Carlo Santambrogio and
  • Stefania Brocca

9 April 2022

Intrinsically disordered proteins (IDPs) are ensembles of interconverting conformers whose conformational properties are governed by several physico-chemical factors, including their amino acid composition and the arrangement of oppositely charged re...

  • Article
  • Open Access
5 Citations
2,474 Views
10 Pages

Development, Testing and Characterization of Al NanoTiCp Composites through Powder Metallurgy Techniques

  • Gaurav Bajpai,
  • Anuradha Tiwari,
  • Rajesh Purohit,
  • Vijay Panchore,
  • Rashmi Dwivedi and
  • Kosaraju Satyanarayana

22 August 2021

In the present scenario, weight diminution and strength enrichment are the main requirements for escalating the application of a nano composite material in different sectors. Several industrial sectors, such as automobile, defense and aerospace, are...

  • Article
  • Open Access
14 Citations
3,685 Views
18 Pages

8 September 2023

The accelerating progress of the Internet of Vehicles (IoV) has put forward a higher demand for distributed model training and data sharing in vehicular networks. Traditional centralized approaches are no longer applicable in the face of drivers&rsqu...

  • Article
  • Open Access
25 Citations
5,339 Views
19 Pages

2 September 2019

Grapevine cluster compactness affects grape composition, fungal disease incidence, and wine quality. Thus far, cluster compactness assessment has been based on visual inspection performed by trained evaluators with very scarce application in the wine...

  • Article
  • Open Access
18 Citations
7,702 Views
31 Pages

The Interstellar Medium of Dwarf Galaxies

  • Christian Henkel,
  • Leslie K. Hunt and
  • Yuri I. Izotov

12 January 2022

Dwarf galaxies are by far the most numerous galaxies in the Universe, showing properties that are quite different from those of their larger and more luminous cousins. This review focuses on the physical and chemical properties of the interstellar me...

  • Article
  • Open Access
2,315 Views
15 Pages

A Compact Model for the Clustered Orienteering Problem

  • Roberto Montemanni and
  • Derek H. Smith

Background: The Clustered Orienteering Problem is an optimization problem faced in last-mile logistics. The aim is, given an available time window, to visit vertices and to collect as much profit as possible in the given time. The vertices to visit h...

  • Feature Paper
  • Article
  • Open Access
18 Citations
2,740 Views
34 Pages

2 March 2022

Due to the cluster reducibility of multiquark operators, a strong interplay exists in tetraquarks between the compact structures, resulting from the direct confining forces acting on quarks and gluons, and the molecular structure, dominated by the me...

  • Article
  • Open Access
316 Views
34 Pages

31 December 2025

Oversampling is common and effective in resolving the classification problem of imbalanced data. Traditional oversampling methods are prone to generating overlapping or noisy samples. Clustering can effectively alleviate the above problems to a certa...

  • Article
  • Open Access
11 Citations
4,696 Views
25 Pages

4 November 2018

Clustering is one of the main tasks of machine learning. Internal clustering validation indexes (CVIs) are used to measure the quality of several clustered partitions to determine the local optimal clustering results in an unsupervised manner, and ca...

  • Article
  • Open Access
506 Views
16 Pages

Compact Models for Some Cluster Problems on Node-Colored Graphs

  • Roberto Montemanni,
  • Derek H. Smith,
  • Pongchanun Luangpaiboon and
  • Pasura Aungkulanon

29 November 2025

Three optimization problems based on node-colored undirected graphs are the subject of the present study. These problems model real-world applications in several domains, such as cybersecurity, bioinformatics, and social networks, although they have...

  • Article
  • Open Access
1 Citations
1,943 Views
19 Pages

8 September 2022

Machine learning techniques are ever prevalent as datasets continue to grow daily. Associative classification (AC), which combines classification and association rule mining algorithms, plays an important role in understanding big datasets that gener...

  • Article
  • Open Access
6 Citations
3,270 Views
18 Pages

21 March 2023

Research on carbon emission is an important basis for solving global climate problems, and it is also one of the ways to quantitatively assess the impact of human activities. Cities are one of the main bearing spaces of human activities, and reasonab...

  • Article
  • Open Access
7 Citations
3,247 Views
18 Pages

The Yangtze River Delta (YRD) region is one of the most densely populated and economically developed areas in China, which provides an ideal environment with which to study the various strategies, such as compact and polycentric development advocated...

  • Article
  • Open Access
144 Views
14 Pages

Longitudinal Whole-Exome Sequencing Identifies Clonal Hematopoiesis and Genomic Heterogeneity as a Predictor of Treatment Outcome in Patients with Newly Diagnosed, Elderly Chronic Lymphocytic Leukemia

  • Ho Cheol Jang,
  • Ga-Young Song,
  • Hyeonjin Jeong,
  • Ja Min Byun,
  • Jee Hyun Kong,
  • Myung-won Lee,
  • Won Sik Lee,
  • Ji Hyun Lee,
  • Ho Sup Lee and
  • Deok-Hwan Yang
  • + 1 author

Chronic lymphocytic leukemia (CLL) is uncommon in Asia, and longitudinal genomic data from Asian cohorts are limited. We conducted serial whole-exome sequencing (WES) in a multicenter Korean cohort of newly diagnosed, elderly CLL treated with chloram...

  • Article
  • Open Access
15 Citations
6,481 Views
21 Pages

K-Means Cloning: Adaptive Spherical K-Means Clustering

  • Abdel-Rahman Hedar,
  • Abdel-Monem M. Ibrahim,
  • Alaa E. Abdel-Hakim and
  • Adel A. Sewisy

6 October 2018

We propose a novel method for adaptive K-means clustering. The proposed method overcomes the problems of the traditional K-means algorithm. Specifically, the proposed method does not require prior knowledge of the number of clusters. Additionally, th...

  • Article
  • Open Access
2 Citations
1,756 Views
18 Pages

This paper introduces a new multiclass classifier called the evolving Fuzzy Classifier (eFC). Starting its knowledge base from scratch, the eFC structure evolves based on a clustering algorithm that can add, merge, delete, or update clusters (= rules...

  • Feature Paper
  • Article
  • Open Access
18 Citations
5,761 Views
21 Pages

Impact of Hot-Melt-Extrusion on Solid-State Properties of Pharmaceutical Polymers and Classification Using Hierarchical Cluster Analysis

  • Ioannis Partheniadis,
  • Miltiadis Toskas,
  • Filippos-Michail Stavras,
  • Georgios Menexes and
  • Ioannis Nikolakakis

25 September 2020

The impact of hot-melt extrusion (HME) on the solid-state properties of four methacrylic (Eudragit® L100-55, Eudragit® EPO, Eudragit® RSPO, Eudragit® RLPO) and four polyvinyl (Kollidon® VA64, Kollicoat® IR, Kollidon® SR, a...

  • Article
  • Open Access
421 Views
40 Pages

23 December 2025

Fault concealment in complex software programs and the difficulty of generating test cases to detect such faults present significant challenges in software testing. To resolve these challenges, this paper suggests a novel method that integrates mutat...

  • Article
  • Open Access
8 Citations
2,571 Views
20 Pages

On the Ideal Convergent Sequences in Fuzzy Normed Space

  • Nifeen H. Altaweel,
  • Mohammad H. M. Rashid,
  • Olayan Albalawi,
  • Maryam G. Alshehri,
  • Nidal H. E. Eljaneid and
  • Razan Albalawi

19 April 2023

This article discusses a variety of important notions, including ideal convergence and ideal Cauchyness of topological sequences produced by fuzzy normed spaces. Furthermore, the connections between the concepts of the ideal limit and ideal cluster p...

  • Article
  • Open Access
24 Citations
8,843 Views
23 Pages

10 March 2021

Transit-oriented development (TOD) pursues sustainable urban development through compact growth, mixed-use zoning, and pedestrian-friendly neighborhood design in cooperation with transportation planning. Seoul has actively developed urban rail transi...

  • Article
  • Open Access
802 Views
24 Pages

Building clustering is a key challenge in cartographic generalization, where the goal is to group spatially related buildings into semantically coherent clusters while preserving the true distribution patterns of urban structures. Existing methods of...

  • Article
  • Open Access
564 Views
21 Pages

The Optical Properties of Host Galaxies of Radio Sources in the Coma Cluster

  • Xiaolan Hou,
  • Heng Yu,
  • Tong Pan,
  • Hu Zou,
  • Haoran Dou,
  • Emily Moravec and
  • Chengkui Li

19 February 2026

We present a comprehensive study of host galaxies of radio sources within the 1.35R200 of the Coma cluster by combining deep 144MHz observations from the LOFAR Two-Metre Sky Survey (LoTSS-DR2) with optical spectroscopy and photometry from DESI and SD...

  • Article
  • Open Access
18 Citations
3,985 Views
30 Pages

22 January 2019

This paper presents an extended study about the compression of topological models of indoor environments. The performance of two clustering methods is tested in order to know their utility both to build a model of the environment and to solve the loc...

  • Article
  • Open Access
1 Citations
697 Views
27 Pages

An End-to-End Framework for Spatiotemporal Data Recovery and Unsupervised Cluster Partitioning in Distributed PV Systems

  • Bingxu Zhai,
  • Yuanzhuo Li,
  • Wei Qiu,
  • Rui Zhang,
  • Zhilin Jiang,
  • Yinuo Zeng,
  • Tao Qian and
  • Qinran Hu

7 October 2025

The growing penetration of distributed photovoltaic (PV) systems presents significant operational challenges for power grids, driven by the scarcity of historical data and the high spatiotemporal variability of PV generation. To address these challen...

  • Article
  • Open Access
7 Citations
2,537 Views
14 Pages

23 October 2020

Two well-known drawbacks in fuzzy clustering are the requirement of assigning in advance the number of clusters and random initialization of cluster centers. The quality of the final fuzzy clusters depends heavily on the initial choice of the number...

  • Article
  • Open Access
22 Citations
9,033 Views
14 Pages

BSLIC: SLIC Superpixels Based on Boundary Term

  • Hai Wang,
  • Xiongyou Peng,
  • Xue Xiao and
  • Yan Liu

26 February 2017

A modified method for better superpixel generation based on simple linear iterative clustering (SLIC) is presented and named BSLIC in this paper. By initializing cluster centers in hexagon distribution and performing k-means clustering in a limited r...

  • Article
  • Open Access
7 Citations
2,923 Views
30 Pages

24 January 2025

Object segmentation algorithms have heavily relied on deep learning techniques to estimate the count of grapes which is a strong indicator for the yield success of grapes. The issue with using object segmentation algorithms for grape analytics is tha...

  • Article
  • Open Access
4 Citations
2,777 Views
14 Pages

3 April 2023

Cluster validity indices (CVIs) for evaluating the result of the optimal number of clusters are critical measures in clustering problems. Most CVIs are designed for typical data-type objects called certain data objects. Certain data objects only have...

  • Article
  • Open Access
4 Citations
1,970 Views
18 Pages

As a result of rapid urbanization in China, the spatial restructuring of towns and cities has significantly impacted urban compactness. The study of the spatio–temporal characteristics and driving mechanisms of urban compactness in central Chin...

  • Review
  • Open Access
43 Citations
7,585 Views
37 Pages

1 April 2022

Successful quality control and quality assurance (QC/QA) of earthwork compaction is critical to the long-term performance of roads, railways, airports, dams, and embankments. The purpose of this paper is to provide insights into the current practice,...

  • Feature Paper
  • Article
  • Open Access
8 Citations
4,011 Views
29 Pages

Biometrics Assessment of Cluster- and Berry-Related Traits of Muscadine Grape Population

  • Jiovan Campbell,
  • Ali Sarkhosh,
  • Fariborz Habibi,
  • Ahmed Ismail,
  • Pranavkumar Gajjar,
  • Ren Zhongbo,
  • Violeta Tsolova and
  • Islam El-Sharkawy

26 May 2021

In this study, biometrics assessment of flower structure, cluster-, and berry-related traits were evaluated in a population of 90 muscadine grape genotypes for three consecutive years. This population consisted of 21 standard cultivars, 60 breeding l...

  • Article
  • Open Access
4 Citations
2,568 Views
19 Pages

The Impact of Bud Load on Berry Quality, Yield, and Cluster Compactness in H4 Strain Grapevines

  • Adel M. Al-Saif,
  • Moustafa A. Fahmy,
  • Galal A. Baghdady,
  • Ahmed M. Abd El-Razik,
  • Elbaz A. Kabsha,
  • Mohammed H. Farouk and
  • Ashraf E. Hamdy

20 September 2023

The Thompson Seedless (Sultanina) seedless variety of grapes is an important crop in Egypt, both for local consumption and export. In recent years, the H4 strain of this grape variety has gained popularity due to its high productivity. However, a dra...

  • Feature Paper
  • Article
  • Open Access
14 Citations
2,472 Views
12 Pages

3 March 2023

The orbital evolution of a binary system consisting of two primordial black hole clusters is investigated. Such clusters are predicted in some theoretical models with broken symmetry in the inflation Lagrangian. A cluster consists of the most massive...

  • Article
  • Open Access
10 Citations
6,118 Views
14 Pages

This study tested 15 direct compaction grades to identify the contribution of different grades of mannitol to the storage stability of the resulting tablets. After preparing the model tablets with different values of hardness, they were stored at 25...

  • Article
  • Open Access
19 Citations
5,995 Views
19 Pages

Clustering of a Health Dataset Using Diagnosis Co-Occurrences

  • Adrien Wartelle,
  • Farah Mourad-Chehade,
  • Farouk Yalaoui,
  • Jan Chrusciel,
  • David Laplanche and
  • Stéphane Sanchez

7 March 2021

Assessing the health profiles of populations is a crucial task to create a coherent healthcare offer. Emergency Departments (EDs) are at the core of the healthcare system and could benefit from this evaluation via an improved understanding of the hea...

  • Article
  • Open Access
3 Citations
2,953 Views
18 Pages

Unsupervised Contrastive Learning for Time Series Data Clustering

  • Bo Cao,
  • Qinghua Xing,
  • Ke Yang,
  • Xuan Wu and
  • Longyue Li

Aiming at the problems of existing time series data clustering methods, such as the lack of similarity metric universality, the influence of dimensional catastrophe, and the limitation of feature expression ability, a time series data clustering meth...

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