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17,455 Results Found

  • Article
  • Open Access
1,112 Views
22 Pages

Bayesian Estimation of Marginal Quantiles with Missing Data in a Multivariate Regression Framework

  • Raúl Alejandro Morán-Vásquez,
  • Mauricio A. Mazo-Lopera and
  • Jose Antonio Escobar-Arias

10 February 2026

In this article, we propose and study a class of multivariate regression models that account for ignorable missing data in skewed, potentially heavy-tailed response vectors with positive components. It can be used to estimate the marginal quantiles o...

(This article belongs to the Special Issue Advances in Bayesian Statistics)
  • Article
  • Open Access
745 Views
31 Pages

6 August 2026

Research on sharing economy platforms has expanded rapidly, yet the literature remains fragmented across studies on platform business models, gig work, algorithmic management, trust, reputation systems, artificial intelligence, and data-driven value...

(This article belongs to the Section Information Systems and Data Management)
  • Article
  • Open Access
19 Citations
4,535 Views
19 Pages

The Application of Hierarchical Clustering to Power Quality Measurements in an Electrical Power Network with Distributed Generation

  • Michał Jasiński,
  • Tomasz Sikorski,
  • Zbigniew Leonowicz,
  • Klaudiusz Borkowski and
  • Elżbieta Jasińska

11 May 2020

This article presents the application of data mining (DM) to long-term power quality (PQ) measurements. The Ward algorithm was selected as the cluster analysis (CA) technique to achieve an automatic division of the PQ measurement data. The measuremen...

(This article belongs to the Special Issue Signal Analysis in Power Systems)
  • Article
  • Open Access
2 Citations
3,391 Views
17 Pages

Aircraft envelope expansion during the installation of new underwing stores presents significant challenges, particularly due to the aeroelastic flutter phenomenon. Accurate modeling of aeroelastic behavior often necessitates flight testing, which po...

(This article belongs to the Special Issue Recent Advances in Flight Testing)
  • Article
  • Open Access
1 Citations
1,340 Views
18 Pages

4 February 2025

As global energy networks expand and smart grid technology evolves rapidly, the volume of historical power accident data has increased dramatically, containing valuable risk information that is essential for building efficient public safety early war...

(This article belongs to the Special Issue AI Facilitated Cyber–Physical Energy Systems—Planning, Operation, and Markets)
  • Review
  • Open Access
72 Citations
13,470 Views
18 Pages

Anomaly Detection Framework for Wearables Data: A Perspective Review on Data Concepts, Data Analysis Algorithms and Prospects

  • Jithin S. Sunny,
  • C. Pawan K. Patro,
  • Khushi Karnani,
  • Sandeep C. Pingle and ,
  • Feng Lin,
  • Misa Anekoji,
  • Lawrence D. Jones,
  • Santosh Kesari and
  • Shashaanka Ashili
  • + 4 authors+ 0 author

19 January 2022

Wearable devices use sensors to evaluate physiological parameters, such as the heart rate, pulse rate, number of steps taken, body fat and diet. The continuous monitoring of physiological parameters offers a potential solution to assess personal heal...

(This article belongs to the Section Wearables)
  • Article
  • Open Access
1 Citations
2,291 Views
13 Pages

Robust Semi-Parametric Inference for Two-Stage Production Models: A Beta Regression Approach

  • Raydonal Ospina,
  • Samuel G. F. Baltazar,
  • Víctor Leiva,
  • Jorge Figueroa-Zúñiga and
  • Cecilia Castro

4 July 2023

The data envelopment analysis is related to a non-parametric mathematical tool used to assess the relative efficiency of productive units. In different studies on productive efficiency, it is common to employ semi-parametric procedures in two stages...

(This article belongs to the Special Issue Symmetric and Asymmetric Distributions: New Developments and Applications)
  • Article
  • Open Access
48 Citations
11,435 Views
20 Pages

NS-DBSCAN: A Density-Based Clustering Algorithm in Network Space

  • Tianfu Wang,
  • Chang Ren,
  • Yun Luo and
  • Jing Tian

Spatial clustering analysis is an important spatial data mining technique. It divides objects into clusters according to their similarities in both location and attribute aspects. It plays an essential role in density distribution identification, hot...

(This article belongs to the Special Issue Spatial Databases: Design, Management, and Knowledge Discovery)
  • Article
  • Open Access
227 Citations
13,046 Views
21 Pages

A Novel K-Means Clustering Algorithm with a Noise Algorithm for Capturing Urban Hotspots

  • Xiaojuan Ran,
  • Xiangbing Zhou,
  • Mu Lei,
  • Worawit Tepsan and
  • Wu Deng

25 November 2021

With the development of cities, urban congestion is nearly an unavoidable problem for almost every large-scale city. Road planning is an effective means to alleviate urban congestion, which is a classical non-deterministic polynomial time (NP) hard p...

(This article belongs to the Special Issue Soft Computing Application to Engineering Design)
  • Article
  • Open Access
101 Citations
6,583 Views
32 Pages

A Novel Machine Learning Approach Combined with Optimization Models for Eco-efficiency Evaluation

  • Mirpouya Mirmozaffari,
  • Maziar Yazdani,
  • Azam Boskabadi,
  • Hamidreza Ahady Dolatsara and ,
  • Kamyar Kabirifar and
  • Noorbakhsh Amiri Golilarz
  • + 1 author+ 0 author

28 July 2020

Machine learning approaches have been developed rapidly and also they have been involved in many academic findings and discoveries. Additionally, they are widely assessed in numerous industries such as cement companies. Cement companies in developing...

(This article belongs to the Section Energy Science and Technology)
  • Article
  • Open Access
11 Citations
2,962 Views
35 Pages

Realistic Performance Assessment of Machine Learning Algorithms for 6G Network Slicing: A Dual-Methodology Approach with Explainable AI Integration

  • Sümeye Nur Karahan,
  • Merve Güllü,
  • Deniz Karhan,
  • Sedat Çimen and ,
  • Mustafa Serdar Osmanca and
  • Necaattin Barışçı
  • + 1 author+ 0 author

27 September 2025

As 6G networks become increasingly complex and heterogeneous, effective classification of network slicing is essential for optimizing resources and managing quality of service. While recent advances demonstrate high accuracy under controlled laborato...

(This article belongs to the Topic Advanced Array Signal Processing for B5G/6G: Models, Algorithms, and Applications)
  • Article
  • Open Access
5 Citations
4,096 Views
11 Pages

30 June 2023

Centrifugal pumps are widely employed in the oil refinery industry due to their efficiency and effectiveness in fluid transfer applications. The reliability of pumps plays a pivotal role in ensuring uninterrupted plant productivity and safe operation...

(This article belongs to the Section Applied Industrial Technologies)
  • Feature Paper
  • Article
  • Open Access
9 Citations
4,900 Views
23 Pages

Data-Driven Estimation of Significant Kinetic Parameters Applied to the Synthesis of Polyolefins

  • Santiago D. Salas,
  • Amanda L. T. Brandão,
  • João B. P. Soares and
  • José A. Romagnoli

22 May 2019

A data-driven strategy for the online estimation of important kinetic parameters was assessed for the copolymerization of ethylene with 1,9-decadiene using a metallocene catalyst at different diene concentrations and reaction temperatures. An initial...

(This article belongs to the Special Issue Computational Methods for Polymers)
  • Article
  • Open Access
10 Citations
5,014 Views
21 Pages

31 October 2024

Sentiment is employed in various fields, such as collecting web-based opinions for the formulation of governmental policies, measuring employee and customer satisfaction levels in business organizations, and measuring the sentiment of the public in p...

(This article belongs to the Special Issue Application of Artificial Intelligence in Decision Making)
  • Article
  • Open Access
23 Citations
3,407 Views
22 Pages

Optimal Control of an Ultraviolet Water Disinfection System

  • Viorel MINZU,
  • Saïd RIAHI and
  • Eugen RUSU

16 March 2021

The ultraviolet water disinfection process has numerous advantages in comparison with other water treatments. This study deals with this process’s optimal control and presents all its stages, from problem statement to analysis of results. We consider...

(This article belongs to the Section Computing and Artificial Intelligence)
  • Article
  • Open Access
6 Citations
2,465 Views
21 Pages

29 November 2022

In this paper, a novel artificial intelligence technique for the estimation of near-optimal resource management is proposed. The model utilizes a two-stage data envelopment analysis to find the best-practice frontier of the decision-making units. By...

(This article belongs to the Special Issue Soft Computing Techniques and Mathematical Modelling for Complex Dynamic Systems)
  • Article
  • Open Access
12 Citations
5,063 Views
17 Pages

Analysis of Dust Detection Algorithms Based on FY-4A Satellite Data

  • Lu Yang,
  • Lu She,
  • Yahui Che,
  • Xingwei He and ,
  • Chen Yang and
  • Zixian Feng
  • + 1 author+ 0 author

19 January 2023

Dust detection is essential for environmental protection, climate change assessment, and human health issues. Based on the Fengyun-4A (FY-4A)/Advance Geostationary Radiation Imager (AGRI) images, this paper aimed to examine the performances of two cl...

(This article belongs to the Section Earth Sciences)
  • Article
  • Open Access
18 Citations
6,740 Views
16 Pages

Geo-Tagged Photo Metadata Processing Method for Beijing Inbound Tourism Flow

  • Wen Chen,
  • Zhiyun Xu,
  • Xiaoyao Zheng and
  • Yonglong Luo

Technological advances have led to numerous developments in data sources. Geo-tagged photo metadata has provided a new source of mass research data for tourism studies. A series of data processing methods centering on the various types of information...

  • Article
  • Open Access
5 Citations
6,413 Views
13 Pages

Educational production functions rely mostly on longitudinal data that almost always exhibit missing data. This paper contributes to a number of avenues in the literature on the economics of education and applied statistics by reviewing the theoretic...

  • Article
  • Open Access
19 Citations
3,069 Views
29 Pages

Advanced Semi-Automatic Approach for Identifying Damaged Surfaces in Cultural Heritage Sites: Integrating UAVs, Photogrammetry, and 3D Data Analysis

  • Tudor Caciora,
  • Alexandru Ilieș,
  • Grigore Vasile Herman,
  • Zharas Berdenov and ,
  • Bahodirhon Safarov,
  • Bahadur Bilalov,
  • Dorina Camelia Ilieș,
  • Ștefan Baias and
  • Thowayeb H. Hassan
  • + 4 authors+ 0 author

20 August 2024

The analysis and preservation of the cultural heritage sites are critical for maintaining their historical and architectural integrity, as they can be damaged by various factors, including climatic, geological, geomorphological, and human actions. Ba...

(This article belongs to the Special Issue Digital 3D Reconstruction in Urban Culture Heritage Conservation Using Remote Sensing)
  • Article
  • Open Access
41 Citations
9,945 Views
9 Pages

Machine Learning for Early Prediction of Sepsis in Intensive Care Unit (ICU) Patients

  • Abdullah Alanazi,
  • Lujain Aldakhil,
  • Mohammed Aldhoayan and
  • Bakheet Aldosari

9 July 2023

Background and Objectives: Early detection of sepsis is crucial and can save lives. However, identifying sepsis early and accurately remains a difficult task in the medical field. This study aims to investigate a new machine-learning approach. By ana...

(This article belongs to the Section Intensive Care/ Anesthesiology)
  • Systematic Review
  • Open Access
326 Views
20 Pages

Traditional algorithmic trading relies heavily on structured financial data, but in contemporary high-density information environments, this uni-modal approach is becoming insufficient. The purpose of this study is to evaluate the impact of integrati...

  • Article
  • Open Access
10 Citations
3,160 Views
18 Pages

Rapid Method of Wastewater Classification by Electronic Nose for Performance Evaluation of Bioreactors with Activated Sludge

  • Magdalena Piłat-Rożek,
  • Marcin Dziadosz,
  • Dariusz Majerek,
  • Katarzyna Jaromin-Gleń and ,
  • Bartosz Szeląg,
  • Łukasz Guz,
  • Adam Piotrowicz and
  • Grzegorz Łagód
  • + 3 authors+ 0 author

19 October 2023

Currently, e-noses are used for measuring odorous compounds at wastewater treatment plants. These devices mimic the mammalian olfactory sense, comprising an array of multiple non-specific gas sensors. An array of sensors creates a unique set of signa...

(This article belongs to the Section Chemical Sensors)
  • Article
  • Open Access
1 Citations
3,136 Views
19 Pages

Algorithms Utilized for Creep Analysis in Torque Transducers for Wind Turbines

  • Jacek G. Puchalski,
  • Janusz D. Fidelus and
  • Paweł Fotowicz

7 February 2024

One of the fundamental challenges in analyzing wind turbine performance is the occurrence of torque creep under load and without load. This phenomenon significantly impacts the proper functioning of torque transducers, thus necessitating the utilizat...

  • Article
  • Open Access
1,020 Views
24 Pages

Performance Analysis of Typical Data Fusion Algorithms for Inertial Measurement Arrays

  • Ting Zhu,
  • Zhenzhen Guan,
  • Qiwen Wang,
  • Wei Wu and
  • Jingbei Tian

17 August 2026

This paper investigates data fusion for multi-MEMS gyroscope arrays by comparing four methods: numerical averaging, weighted least squares, direct estimation Kalman filtering, and indirect estimation Kalman filtering. The state-estimation characteris...

(This article belongs to the Special Issue Micro/Nanostructures in Sensors and Actuators, 2nd Edition)
  • Article
  • Open Access
3,256 Views
20 Pages

1 November 2021

Principal component analysis (PCA) is one of the most popular tools in multivariate exploratory data analysis. Its probabilistic version (PPCA) based on the maximum likelihood procedure provides a probabilistic manner to implement dimension reduction...

  • Article
  • Open Access
2 Citations
1,297 Views
29 Pages

4 February 2026

In injection molding, advanced numerical modeling tools, such as Moldex3D, can significantly improve product development by optimizing part functionality, structural integrity, and material efficiency. However, the complex and nonlinear interdependen...

(This article belongs to the Section Computing and Artificial Intelligence)
  • Article
  • Open Access
7 Citations
3,744 Views
11 Pages

Discrimination of Sweet Cherry Cultivars Based on Electronic Tongue Potentiometric Fingerprints

  • Isabel Rodrigues,
  • Nuno Rodrigues,
  • Ítala M. G. Marx,
  • Ana C. A. Veloso and ,
  • Ana Cristina Ramos,
  • José Alberto Pereira and
  • António M. Peres
  • + 2 authors+ 0 author

11 October 2020

Sweet cherry is highly appreciated by its characteristic flavor, which conditions the consumer’s preference. In this study, four sweet cherry cultivars (Durona, Lapins, Summit, and Van cultivars) were characterized according to biometric (fruit...

(This article belongs to the Section Food Science and Technology)
  • Article
  • Open Access
14 Citations
4,644 Views
13 Pages

23 May 2019

Feature subset selection is a process to choose a set of relevant features from a high dimensionality dataset to improve the performance of classifiers. The meaningful words extracted from data forms a set of features for sentiment analysis. Many evo...

  • Article
  • Open Access
4 Citations
3,264 Views
30 Pages

Optimizing the Mean Shift Algorithm for Efficient Clustering

  • Rustam Mussabayev,
  • Alexander Krassovitskiy and
  • Meruyert Aristombayeva

26 October 2025

Mean Shift is a flexible, non-parametric clustering algorithm that identifies dense regions in data through gradient ascent on a kernel density estimate. Its ability to detect arbitrarily shaped clusters without requiring prior knowledge of the numbe...

(This article belongs to the Section E1: Mathematics and Computer Science)
  • Article
  • Open Access
11 Citations
4,928 Views
17 Pages

Pump Feature Construction and Electrical Energy Consumption Prediction Based on Feature Engineering and LightGBM Algorithm

  • Zhiqiang Yin,
  • Lin Shi,
  • Junru Luo,
  • Shoukun Xu and ,
  • Yang Yuan,
  • Xinxin Tan and
  • Jiaqun Zhu
  • + 2 authors+ 0 author

1 January 2023

In recent years, research on improving the energy consumption ratio of pumping equipment through control algorithms has improved. However, the actual behavior of pump equipment and pump characteristic information do not always correspond, resulting i...

  • Article
  • Open Access
10 Citations
2,511 Views
15 Pages

27 February 2024

In today’s industrial landscape, the imperative of fault warning for equipment and systems underscores its critical significance in research. The deployment of fault warning systems not only facilitates the early detection and identification of...

(This article belongs to the Special Issue Motor Drive Systems: Control Technology, Fault Diagnosis and Fault Tolerance)
  • Article
  • Open Access
6 Citations
1,982 Views
14 Pages

26 June 2023

The collusive false data injection attack (CFDIA) is a false data injection attack (FIDA), in which false data are injected in a coordinated manner into some adjacent pairs of captured nodes of an attacked wireless sensor network (WSN). As a result,...

(This article belongs to the Section Fault Diagnosis & Sensors)
  • Article
  • Open Access
5 Citations
3,759 Views
21 Pages

9 October 2022

Background: Type 1 diabetes (T1D) is a devastating disease with serious health complications. Early T1D biomarkers that could enable timely detection and prevention before the onset of clinical symptoms are paramount but currently unavailable. Despit...

(This article belongs to the Collection Metabolomics and Integrated Multi-Omics in Health and Disease)
  • Article
  • Open Access
25 Citations
9,023 Views
25 Pages

Scalable Combinatorial Tools for Health Disparities Research

  • Michael A. Langston,
  • Robert S. Levine,
  • Barbara J. Kilbourne,
  • Gary L. Rogers and ,
  • Anne D. Kershenbaum,
  • Suzanne H. Baktash,
  • Steven S. Coughlin,
  • Arnold M. Saxton,
  • Vincent K. Agboto and
  • Paul D. Juarez
  • + 9 authors+ 4 authors

Despite staggering investments made in unraveling the human genome, current estimates suggest that as much as 90% of the variance in cancer and chronic diseases can be attributed to factors outside an individual’s genetic endowment, particularly to...

(This article belongs to the Special Issue Eliminating Health Disparities to Achieve Health Equity)
  • Article
  • Open Access
925 Views
38 Pages

In order to evaluate regional sustainability, a comprehensive framework is needed that can integrate a number of economic and environmental variables into a transparent and policy-relevant evaluation approach. The present study presents a data-driven...

  • Article
  • Open Access
10 Citations
4,207 Views
21 Pages

Refined Analysis of RADARSAT-2 Measurements to Discriminate Two Petrogenic Oil-Slick Categories: Seeps versus Spills

  • Gustavo de Araújo Carvalho,
  • Peter J. Minnett,
  • Eduardo Tavares Paes,
  • Fernando Pellon De Miranda and
  • Luiz Landau

11 December 2018

Our research focuses on refining the ability to discriminate two petrogenic oil-slick categories: the sea surface expression of naturally-occurring oil seeps and man-made oil spills. For that, a long-term RADARSAT-2 dataset (244 scenes imaged between...

(This article belongs to the Special Issue Marine Oil Spills 2018)
  • Article
  • Open Access
19 Citations
4,279 Views
15 Pages

22 September 2023

Colorectal cancer affects the colon or rectum and is a common global health issue, with 1.1 million new cases occurring yearly. The study aimed to identify gene signatures for the early detection of CRC using machine learning (ML) algorithms utilizin...

(This article belongs to the Section Human Genomics and Genetic Diseases)
  • Article
  • Open Access
7 Citations
2,949 Views
18 Pages

12 October 2021

Negligence in relation to aging infrastructure systems could have unintended consequences and is therefore associated with a risk. The assessment of the risk of neglecting maintenance provides valuable information for decision making in maintenance m...

(This article belongs to the Special Issue Multi-Criteria Decision Making and Data Mining)
  • Article
  • Open Access
2 Citations
4,122 Views
18 Pages

17 May 2021

In the domain of functional magnetic resonance imaging (fMRI) data analysis, given two correlation matrices between regions of interest (ROIs) for the same subject, it is important to reveal relatively large differences to ensure accurate interpretat...

(This article belongs to the Section Applied Biosciences and Bioengineering)
  • Article
  • Open Access
3 Citations
2,454 Views
14 Pages

Machine Learning Analysis of Gaze Data for Enhanced Precision in Diagnosing Oral Mucosal Diseases

  • Shuji Uchida,
  • Shin-ichiro Hiraoka,
  • Kohei Kawamura,
  • Katsuya Sakamoto and ,
  • Ryo Akiyama and
  • Susumu Tanaka
  • + 1 author+ 0 author

26 December 2023

The diagnosis of oral mucosal diseases is a significant challenge due to their diverse differential characteristics. Risk assessment of lesions by visual examination is a complex process due to the lack of definitive guidelines. This study aimed to i...

(This article belongs to the Section Dentistry, Oral Surgery and Oral Medicine)
  • Article
  • Open Access
35 Citations
7,958 Views
17 Pages

Air Conditioners (AC) impact in overall electricity consumption in buildings is very high. Therefore, controlling ACs power consumption is a significant factor for demand response. With the advancement in the area of demand side management techniques...

  • Article
  • Open Access
6 Citations
6,809 Views
31 Pages

Multi-Dimensional Validation of the Integration of Syntactic and Semantic Distance Measures for Clustering Fibromyalgia Patients in the Rheumatic Monitor Big Data Study

  • Ayelet Goldstein,
  • Yuval Shahar,
  • Michal Weisman Raymond,
  • Hagit Peleg and ,
  • Eldad Ben-Chetrit,
  • Arie Ben-Yehuda,
  • Erez Shalom,
  • Chen Goldstein,
  • Shmuel Shay Shiloh and
  • Galit Almoznino
  • + 5 authors+ 0 author

This study primarily aimed at developing a novel multi-dimensional methodology to discover and validate the optimal number of clusters. The secondary objective was to deploy it for the task of clustering fibromyalgia patients. We present a comprehens...

(This article belongs to the Special Issue New Sight of Intelligent Algorithm Model and Medical Device in Bioengineering: Updates and Direction)
  • Article
  • Open Access
6 Citations
2,914 Views
27 Pages

Comparative Performance of Autoencoders and Traditional Machine Learning Algorithms in Clinical Data Analysis for Predicting Post-Staged GKRS Tumor Dynamics

  • Simona Ruxandra Volovăț,
  • Tudor Ovidiu Popa,
  • Dragoș Rusu,
  • Lăcrămioara Ochiuz and ,
  • Decebal Vasincu,
  • Maricel Agop,
  • Călin Gheorghe Buzea and
  • Cristian Constantin Volovăț
  • + 3 authors+ 0 author

21 September 2024

Introduction: Accurate prediction of tumor dynamics following Gamma Knife radiosurgery (GKRS) is critical for optimizing treatment strategies for patients with brain metastases (BMs). Traditional machine learning (ML) algorithms have been widely used...

(This article belongs to the Special Issue Integrative Approaches in Head and Neck Cancer Imaging)
  • Article
  • Open Access
1 Citations
1,951 Views
22 Pages

Cross-Validated Functional Generalized Partially Linear Single-Functional Index Model

  • Mustapha Rachdi,
  • Mohamed Alahiane,
  • Idir Ouassou,
  • Abdelaziz Alahiane and
  • Lahoucine Hobbad

26 August 2024

In this paper, we have introduced a functional approach for approximating nonparametric functions and coefficients in the presence of multivariate and functional predictors. By utilizing the Fisher scoring algorithm and the cross-validation technique...

(This article belongs to the Special Issue Multivariate Statistical Analysis and Application)
  • Article
  • Open Access
2 Citations
1,409 Views
22 Pages

18 August 2025

As smart cities continue to generate vast quantities of data, data integrity is increasingly threatened by instances of fraud. Anomalous or fake data deteriorate the process and have impacts on decision-making systems and predictive analytics. Hence,...

(This article belongs to the Special Issue Digital Security and Privacy Protection: Trends and Applications, 2nd Edition)
  • Article
  • Open Access
19 Citations
8,180 Views
24 Pages

29 January 2022

Big Data is changing how organizations conduct operations. Data are assembled from multiple points of view through online quests, investigation of purchaser purchasing conduct, and then some, and industries utilize it to improve their net revenue and...

(This article belongs to the Special Issue Information Retrieval, Recommender Systems and Adaptive Systems)
  • Article
  • Open Access
2 Citations
2,598 Views
16 Pages

Algorithms for Automatic Data Validation and Performance Assessment of MOX Gas Sensor Data Using Time Series Analysis

  • Christof Hammer,
  • Sebastian Sporrer,
  • Johannes Warmer,
  • Peter Kaul and ,
  • Ronald Thoelen and
  • Norbert Jung
  • + 1 author+ 0 author

28 September 2022

The following work presents algorithms for semi-automatic validation, feature extraction and ranking of time series measurements acquired from MOX gas sensors. Semi-automatic measurement validation is accomplished by extending established curve simil...

(This article belongs to the Section Algorithms for Multidisciplinary Applications)

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