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2,629 Results Found

  • Article
  • Open Access
61 Citations
10,435 Views
12 Pages

An Enhanced Quantum K-Nearest Neighbor Classification Algorithm Based on Polar Distance

  • Congcong Feng,
  • Bo Zhao,
  • Xin Zhou,
  • Xiaodong Ding and
  • Zheng Shan

8 January 2023

The K-nearest neighbor (KNN) algorithm is one of the most extensively used classification algorithms, while its high time complexity limits its performance in the era of big data. The quantum K-nearest neighbor (QKNN) algorithm can handle the above p...

(This article belongs to the Special Issue Advances in Quantum Computing)
  • Article
  • Open Access
27 Citations
4,860 Views
17 Pages

Detection of Android Malware in the Internet of Things through the K-Nearest Neighbor Algorithm

  • Himanshi Babbar,
  • Shalli Rani,
  • Dipak Kumar Sah,
  • Salman A. AlQahtani and
  • Ali Kashif Bashir

18 August 2023

Predicting attacks in Android malware devices using machine learning for recommender systems-based IoT can be a challenging task. However, it is possible to use various machine-learning techniques to achieve this goal. An internet-based framework is...

(This article belongs to the Special Issue Smart Cities: Sensors and IoT)
  • Article
  • Open Access
137 Citations
12,178 Views
19 Pages

Application of the Weighted K-Nearest Neighbor Algorithm for Short-Term Load Forecasting

  • Guo-Feng Fan,
  • Yan-Hui Guo,
  • Jia-Mei Zheng and
  • Wei-Chiang Hong

9 March 2019

In this paper, the historical power load data from the National Electricity Market (Australia) is used to analyze the characteristics and regulations of electricity (the average value of every eight hours). Then, considering the inverse of Euclidean...

(This article belongs to the Special Issue Intelligent Optimization Modelling in Energy Forecasting)
  • Article
  • Open Access
4 Citations
3,302 Views
18 Pages

Underwater Single-Photon 3D Reconstruction Algorithm Based on K-Nearest Neighbor

  • Hui Wang,
  • Su Qiu,
  • Taoran Lu,
  • Yanjin Kuang and
  • Weiqi Jin

7 July 2024

The high sensitivity and picosecond time resolution of single-photon avalanche diodes (SPADs) can improve the operational range and imaging accuracy of underwater detection systems. When an underwater SPAD imaging system is used to detect targets, ba...

(This article belongs to the Section Sensing and Imaging)
  • Article
  • Open Access
12 Citations
6,299 Views
28 Pages

The suggested solution in this work makes use of the parallel processing capability of FPGA to enhance the efficiency of the K-Nearest Neighbor (KNN) algorithm on encrypted data. The suggested technique was assessed utilizing the breast cancer datase...

  • Article
  • Open Access
991 Views
24 Pages

Balanced Index-Encoding Genetic Algorithm for Extreme Prototype Reduction in k-Nearest Neighbor Classification

  • Victor Ayala-Ramirez,
  • Jose-Gabriel Aguilera-Gonzalez,
  • Antonio Tierrasnegras-Badillo and
  • Uriel Calderon-Uribe

3 March 2026

Nearest-neighbor classifiers are accurate and easy to deploy, but their memory footprint and inference time grow with the size of the reference set. This paper studies an evolutionary prototype selection strategy for k-nearest neighbor (K-NN) classif...

(This article belongs to the Section Evolutionary Algorithms and Machine Learning)
  • Article
  • Open Access
49 Citations
3,866 Views
22 Pages

With the widespread use of the Internet, network security issues have attracted more and more attention, and network intrusion detection has become one of the main security technologies. As for network intrusion detection, the original data source al...

(This article belongs to the Section Networks)
  • Article
  • Open Access
13 Citations
3,794 Views
12 Pages

A Simple Joint Modulation Format Identification and OSNR Monitoring Scheme for IMDD OOFDM Transceivers Using K-Nearest Neighbor Algorithm

  • Qianwu Zhang,
  • Hai Zhou,
  • Yuntong Jiang,
  • Bingyao Cao and ,
  • Yingchun Li,
  • Yingxiong Song,
  • Jian Chen,
  • Junjie Zhang and
  • Min Wang
  • + 4 authors+ 0 author

17 September 2019

In this study, a joint modulation format identification and optical signal-to-noise ratio (OSNR) monitoring algorithm is proposed and experimentally demonstrated using the k-nearest neighbor algorithm for intensity modulation and direct detection (IM...

(This article belongs to the Special Issue Optics for AI and AI for Optics)
  • Article
  • Open Access
33 Citations
4,039 Views
31 Pages

5 September 2019

Sudden floods in the medium and small watershed by a sudden rainstorm and locally heavy rainfall often lead to flash floods. Therefore, it is of practical and theoretical significance to explore appropriate flood forecasting model for medium and smal...

(This article belongs to the Section Hydrology)
  • Article
  • Open Access
67 Citations
10,446 Views
14 Pages

An Improved Weighted K-Nearest Neighbor Algorithm for Indoor Localization

  • Xuesheng Peng,
  • Ruizhi Chen,
  • Kegen Yu,
  • Feng Ye and
  • Weixing Xue

11 December 2020

The weighted K-nearest neighbor (WKNN) algorithm is the most commonly used algorithm for indoor localization. Traditional WKNN algorithms adopt received signal strength (RSS) spatial distance (usually Euclidean distance and Manhattan distance) to sel...

(This article belongs to the Special Issue Recent Advancements in Indoor Positioning and Localization)
  • Article
  • Open Access
8 Citations
6,737 Views
15 Pages

Multilabel data share important features, including label imbalance, which has a significant influence on the performance of classifiers. Because of this problem, a widely used multilabel classification algorithm, the multilabel k-nearest neighbor (M...

(This article belongs to the Special Issue Intelligent Computing, Modeling and its Applications)
  • Article
  • Open Access
13 Citations
2,596 Views
14 Pages

25 November 2021

The article concerns the problem of classification based on independent data sets—local decision tables. The aim of the paper is to propose a classification model for dispersed data using a modified k-nearest neighbors algorithm and a neural ne...

  • Article
  • Open Access
28 Citations
3,646 Views
17 Pages

Gravity-Matching Algorithm Based on K-Nearest Neighbor

  • Shuaipeng Gao,
  • Tijing Cai and
  • Ke Fang

12 June 2022

The gravity-aided inertial navigation system is a technique using geophysical information, which has broad application prospects, and the gravity-map-matching algorithm is one of its key technologies. A novel gravity-matching algorithm based on the K...

(This article belongs to the Section Navigation and Positioning)
  • Article
  • Open Access
8 Citations
4,515 Views
12 Pages

A New Approach in Detectability of Microcalcifications in the Placenta during Pregnancy Using Textural Features and K-Nearest Neighbors Algorithm

  • Mihaela Miron,
  • Simona Moldovanu,
  • Bogdan Ioan Ștefănescu,
  • Mihai Culea and ,
  • Sorin Marius Pavel and
  • Anisia Luiza Culea-Florescu
  • + 1 author+ 0 author

(1) Background: Ultrasonography is the main method used during pregnancy to assess the fetal growth, amniotic fluid, umbilical cord and placenta. The placenta’s structure suffers dynamic modifications throughout the whole pregnancy and many of...

(This article belongs to the Special Issue Radiomics and Texture Analysis in Medical Imaging)
  • Article
  • Open Access
6 Citations
2,545 Views
15 Pages

9 March 2023

Tri-training expands the training set by adding pseudo-labels to unlabeled data, which effectively improves the generalization ability of the classifier, but it is easy to mislabel unlabeled data into training noise, which damages the learning effici...

(This article belongs to the Section Multidisciplinary Applications)
  • Article
  • Open Access
435 Views
19 Pages

Accurate prediction of PM2.5 concentration is essential for public health and environmental protection, and specifically crucial for the management of the availability of sufficient health personnel during adverse health episodes. However, its nonlin...

(This article belongs to the Section Atmospheric Techniques, Instruments, and Modeling)
  • Article
  • Open Access
9 Citations
4,149 Views
24 Pages

14 December 2021

Radial basis function neural networks are a widely used type of artificial neural network. The number and centers of basis functions directly affect the accuracy and speed of radial basis function neural networks. Many studies use supervised learning...

(This article belongs to the Section Sensors and Robotics)
  • Article
  • Open Access
5 Citations
3,405 Views
18 Pages

16 November 2021

Many computer problems that arise from real-world circumstances are NP-hard, while, in the worst case, these problems are generally assumed to be intractable. Existing distributed computing systems are commonly used for a range of large-scale complex...

(This article belongs to the Section Computing and Artificial Intelligence)
  • Article
  • Open Access
176 Citations
9,466 Views
17 Pages

5 August 2017

The Global Positioning System (GPS) is widely used in outdoor environmental positioning. However, GPS cannot support indoor positioning because there is no signal for positioning in an indoor environment. Nowadays, there are many situations which req...

(This article belongs to the Section Sensor Networks)
  • Article
  • Open Access
13 Citations
4,325 Views
14 Pages

An adaptive weighted K-nearest neighbor (AWKNN) trilateration positioning algorithm fused with the channel state information (CSI) is proposed to optimize the accuracy of the visible light positioning. The core concept behind this algorithm is to com...

(This article belongs to the Section Optical Communication and Network)
  • Article
  • Open Access
35 Citations
4,396 Views
24 Pages

8 August 2020

The weighted K-nearest neighbor (WKNN) algorithm is a commonly used fingerprint positioning, the difficulty of which lies in how to optimize the value of K to obtain the minimum positioning error. In this paper, we propose an adaptive residual weight...

(This article belongs to the Special Issue Sensors and Systems for Indoor Positioning)
  • Article
  • Open Access
232 Views
12 Pages

Fidelity-Derived Quantum Dissimilarity-Enhanced k-Nearest Neighbor Algorithm for Arterial Hypertension Detection

  • Antonia E. Tampakaki,
  • Georgios D. Barmparis,
  • Eleni Angelaki,
  • Maria E. Marketou and
  • Giorgos P. Tsironis

26 October 2026

We present a quantum-enhanced version of the classic k-Nearest Neighbors (kNN) classification algorithm, applied to the detection of arterial hypertension. The traditional Euclidean distance metric of the kNN algorithm is replaced with a fidelity-der...

  • Article
  • Open Access
24 Citations
5,285 Views
26 Pages

6 December 2020

The clustering analysis algorithm is used to reveal the internal relationships among the data without prior knowledge and to further gather some data with common attributes into a group. In order to solve the problem that the existing algorithms alwa...

  • Article
  • Open Access
14 Citations
3,667 Views
20 Pages

16 November 2022

Wireless indoor localization technology is a hot research field at present. Its basic principle is to estimate the geometric position of the mobile node by measuring the characteristic parameters of the propagation signal between the mobile node and...

  • Article
  • Open Access
18 Citations
10,011 Views
17 Pages

18 November 2010

A great deal of work has been done to develop techniques for odor analysis by electronic nose systems. These analyses mostly focus on identifying a particular odor by comparing with a known odor dataset. However, in many situations, it would be more...

(This article belongs to the Special Issue Direct and Indirect Sensing of Odor and VOCs and Their Control)
  • Article
  • Open Access
5 Citations
2,332 Views
19 Pages

Due to sensor characteristics, geographical environment, electromagnetic interference, electromagnetic silence, information countermeasures, and other reasons, there may be significant system errors in sensors in multi-sensor tracking systems, result...

  • Article
  • Open Access
12 Citations
2,786 Views
23 Pages

Intelligent Multi-Strategy Hybrid Fuzzy K-Nearest Neighbor Using Improved Hybrid Sine Cosine Algorithm

  • Chengfeng Zheng,
  • Mohd Shareduwan Mohd Kasihmuddin,
  • Mohd. Asyraf Mansor,
  • Ju Chen and
  • Yueling Guo

16 September 2022

The sine and cosine algorithm is a new simple and effective population optimization method proposed in recent years that has been studied in many works of literature. Based on the basic principle of the sine and cosine algorithm, this paper fully stu...

(This article belongs to the Special Issue Statistical Methods in Data Science and Applications)
  • Feature Paper
  • Article
  • Open Access
37 Citations
4,876 Views
14 Pages

14 March 2019

Fault detection in metallic structures requires a detailed and discriminative feature pool creation mechanism to develop an effective condition monitoring system. Traditional fault detection methods incorporate handcrafted features either from the ti...

(This article belongs to the Special Issue Fault Diagnosis and Fault-Tolerant Control)
  • Article
  • Open Access
4 Citations
2,255 Views
14 Pages

A Three-Dimensional Modeling Approach for Carbon Nanotubes Filled Polymers Utilizing the Modified Nearest Neighbor Algorithm

  • Junpu Wang,
  • Xiaozhuang Yue,
  • Yuxuan Wang,
  • Liupeng Di and ,
  • Wenzhi Wang,
  • Jingchao Wei and
  • Fei Yu
  • + 2 authors+ 0 author

6 October 2024

Carbon nanotubes (CNTs) are extensively utilized in the fabrication of high-performance composites due to their exceptional mechanical, electrical, and thermal characteristics. To investigate the mechanical properties of CNTs filled polymers accurate...

(This article belongs to the Section Polymer Composites and Nanocomposites)
  • Article
  • Open Access
7 Citations
1,984 Views
15 Pages

Decision Support Tool in the Selection of Powder for 3D Printing

  • Ewelina Szczupak,
  • Marcin Małysza,
  • Dorota Wilk-Kołodziejczyk,
  • Krzysztof Jaśkowiec and ,
  • Adam Bitka,
  • Mirosław Głowacki and
  • Łukasz Marcjan
  • + 2 authors+ 0 author

18 April 2024

The work presents a tool enabling the selection of powder for 3D printing. The project focused on three types of powders, such as steel, nickel- and cobalt-based and aluminum-based. An important aspect during the research was the possibility of obtai...

(This article belongs to the Special Issue Research and Development in the World Foundry Engineering: Materials, Properties and Applications)
  • Article
  • Open Access
24 Citations
9,538 Views
18 Pages

Large-Scale Mapping of Carbon Stocks in Riparian Forests with Self-Organizing Maps and the k-Nearest-Neighbor Algorithm

  • Leonhard Suchenwirth,
  • Wolfgang Stümer,
  • Tobias Schmidt,
  • Michael Förster and
  • Birgit Kleinschmit

11 July 2014

Among the machine learning tools being used in recent years for environmental applications such as forestry, self-organizing maps (SOM) and the k-nearest neighbor (kNN) algorithm have been used successfully. We applied both methods for the mapping of...

(This article belongs to the Special Issue Applications of Remote Sensing to Forestry)
  • Article
  • Open Access
18 Citations
5,849 Views
19 Pages

An Incremental Local Outlier Detection Method in the Data Stream

  • Haiqing Yao,
  • Xiuwen Fu,
  • Yongsheng Yang and
  • Octavian Postolache

28 July 2018

Outlier detection has attracted a wide range of attention for its broad applications, such as fault diagnosis and intrusion detection, among which the outlier analysis in data streams with high uncertainty and infinity is more challenging. Recent maj...

  • Article
  • Open Access
60 Citations
5,710 Views
15 Pages

19 February 2023

In the previous research on traffic flow prediction models, most of the models mainly studied the time series of traffic flow, and the spatial correlation of traffic flow was not fully considered. To solve this problem, this paper proposes a method t...

  • Article
  • Open Access
18 Citations
3,444 Views
16 Pages

Detection Model on Fatigue Driving Behaviors Based on the Operating Parameters of Freight Vehicles

  • Jianfeng Xi,
  • Shiqing Wang,
  • Tongqiang Ding,
  • Jian Tian and ,
  • Hui Shao and
  • Xinning Miao
  • + 1 author+ 0 author

2 August 2021

Whether in developing or developed countries, traffic accidents caused by freight vehicles are responsible for more than 10% of deaths of all traffic accidents. Fatigue driving is one of the main causes of freight vehicle accidents. Existing fatigue...

(This article belongs to the Special Issue Risk Assessment in Traffic and Transportation)
  • Article
  • Open Access
28 Citations
6,206 Views
27 Pages

14 November 2020

We investigated nearest-neighbor density-based clustering for hyperspectral image analysis. Four existing techniques were considered that rely on a K-nearest neighbor (KNN) graph to estimate local density and to propagate labels through algorithm-spe...

(This article belongs to the Section Remote Sensing Image Processing)
  • Article
  • Open Access
55 Citations
4,608 Views
19 Pages

The back projection (BP) algorithm is characterized by its high performance for multi-receiver synthetic aperture sonar (SAS). For this reason, it is usually used to evaluate the imaging performance of Fourier-domain methods. However, this algorithm...

(This article belongs to the Special Issue New Challenges in Autonomous Underwater Networks)
  • Article
  • Open Access
1 Citations
2,120 Views
8 Pages

1 December 2013

The traveling salesman problem (TSP) is one of the typical NP–Hard problems of combinatorial optimization area. This paper proposes a new hyper heuristic algorithm named Parametric Hybrid Method (PHM) based on The Farthest Vertex (FV) and Greedy heur...

  • Article
  • Open Access
21 Citations
5,315 Views
21 Pages

Assessment of the Carbon Stock in Pine Plantations in Southern Spain through ALS Data and K-Nearest Neighbor Algorithm Based Models

  • Miguel A. Navarrete-Poyatos,
  • Rafael M. Navarro-Cerrillo,
  • Miguel A. Lara-Gómez,
  • Joaquín Duque-Lazo and ,
  • Maria de los Angeles Varo and
  • Guillermo Palacios Rodriguez
  • + 1 author+ 0 author

Accurate estimation of forest biomass to enable the mapping of forest C stocks over large areas is of considerable interest nowadays. Airborne laser scanning (ALS) systems bring a new perspective to forest inventories and subsequent biomass estimatio...

  • Article
  • Open Access
23 Citations
6,166 Views
18 Pages

29 September 2019

Stratiform and convective rain types are associated with different cloud physical processes, vertical structures, thermodynamic influences and precipitation types. Distinguishing convective and stratiform systems is beneficial to meteorology research...

(This article belongs to the Special Issue Remote Sensing of the Terrestrial Hydrologic Cycle)
  • Article
  • Open Access
4 Citations
5,017 Views
26 Pages

A reverse k nearest neighbor (RkNN) query retrieves all the data points that have q as one of their k closest points. In recent years, considerable research has been conducted into monitoring reverse k nearest neighbor queries. In this paper, we stud...

  • Article
  • Open Access
13 Citations
3,730 Views
24 Pages

2 June 2024

The adequacy and efficacy of simple and hybrid machine learning and Computational Intelligence algorithms were evaluated for the classification of potential prostate cancer patients in two distinct categories, the high- and the low-risk group for PCa...

(This article belongs to the Special Issue Hybrid Intelligent Algorithms)
  • Article
  • Open Access
1 Citations
1,578 Views
32 Pages

7 August 2025

In this paper, we propose a crossover operator for genetic algorithms with binary chromosomes populations based on the cellular automata (CGACell). After presenting the fundamental elements regarding cellular automata with specific examples for one-...

(This article belongs to the Special Issue Applications of Genetic and Evolutionary Computation)
  • Article
  • Open Access
159 Citations
14,557 Views
24 Pages

Crash severity is undoubtedly a fundamental aspect of a crash event. Although machine learning algorithms for predicting crash severity have recently gained interest by the academic community, there is a significant trend towards neglecting the fact...

  • Article
  • Open Access
823 Views
28 Pages

A Directional Nearest Neighbor Distance-Based Algorithm for Signal Photon Extraction from Spaceborne Photon-Counting LiDAR in Shallow Waters

  • Shibin Zhao,
  • Zhenwei Shi,
  • Tingting Jin,
  • Boxue Huang and ,
  • Xiaokai Li and
  • Hui Long
  • + 1 author+ 0 author

5 March 2026

The Ice, Cloud, and Land Elevation Satellite-2 (ICESat-2) employs a 532 nm laser with strong water-penetration capability, making it well suited for satellite-derived bathymetry in shallow waters; however, the effective denoising of photon-counting d...

(This article belongs to the Section Optical Sensors)
  • Article
  • Open Access
30 Citations
4,515 Views
19 Pages

Equivalent Discharge Coefficient of Side Weirs in Circular Channel—A Lazy Machine Learning Approach

  • Francesco Granata,
  • Fabio Di Nunno,
  • Rudy Gargano and
  • Giovanni de Marinis

16 November 2019

Side weirs have been widely used since ancient times in many hydraulic works. Their operation can be analyzed following different approaches. However, almost all possible analysis approaches require knowledge of the discharge coefficient, which depen...

(This article belongs to the Section Hydraulics and Hydrodynamics)
  • Article
  • Open Access
10 Citations
2,101 Views
21 Pages

5 March 2024

In view of the current problems of complex models and insufficient data processing in ultra-short-term prediction of photovoltaic power generation, this paper proposes a photovoltaic power ultra-short-term prediction model named HPO-KNN-SRU, based on...

(This article belongs to the Section Applied Physics General)
  • Article
  • Open Access
6 Citations
2,806 Views
19 Pages

5 January 2024

Machine learning-based classification algorithms allow communication and computing (2C) task offloading from the end devices to the edge computing network servers. In this paper, we consider task classification based on the hybrid k-means and k&prime...

(This article belongs to the Special Issue Cybersecurity and Reliability for 5G and Beyond and IoT Applications)
  • Article
  • Open Access
2 Citations
4,244 Views
21 Pages

23 February 2022

The unprecedented development of Internet of Things (IoT) technology produces humongous amounts of spatio-temporal sensing data with various geometry types. However, processing such datasets is often challenging due to high-dimensional sensor data ge...

(This article belongs to the Section Sensor Networks)
  • Article
  • Open Access
7 Citations
2,534 Views
11 Pages

26 September 2022

This paper presents two novel swarm intelligence algorithms for gene selection, HHO-SVM and HHO-KNN. Both of these algorithms are based on Harris Hawks Optimization (HHO), one in conjunction with support vector machines (SVM) and the other in conjunc...

(This article belongs to the Section Biosensors)
  • Article
  • Open Access
625 Views
40 Pages

29 April 2026

The ability to continuously learn over time by incorporating new information while holding onto previously acquired expertise is known as incremental learning (IL). Although this concept is fundamental to human learning, existing machine learning tec...

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