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16+ results
Field: Computational science

Enhancing K-nearest neighbor algorithm: a comprehensive review and performance analysis of modifications

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Rajib Kumar Halder, Mohammed Nasir Uddin, Md. Ashraf Uddin, Sunil Aryal et al.

Journal: Journal Of Big Data
Year: 2024
Citations: 411

Abstract The k-Nearest Neighbors (kNN) method, established in 1951, has since evolved into a pivotal tool in data mining, recommendation systems, and Internet of Things (IoT), among other areas. This paper presents a comprehensive review and performance analysis of modifications made to enhance the ...

Physical SciencesComputer ScienceComputer Vision and Pattern RecognitionOpen Access
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Electrochemical Impedance Spectra of Dye-Sensitized Solar Cells: Fundamentals and Spreadsheet Calculation

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Subrata Sarker, A. J. Saleh Ahammad, Hyun Woo Seo, Dong Min Kim

Journal: International Journal of PhotoenergyYear: 2014Citations: 200

Electrochemical impedance spectroscopy (EIS) is one of the most important tools to elucidate the charge transfer and transport processes in various electrochemical systems including dye-sensitized solar cells (DSSCs). Even though there are many books and reports on EIS, it is often very difficult to...

Physical SciencesEnergyRenewable Energy, Sustainability and the EnvironmentOpen Access
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Real‐Time Weighted Pose‐Space Deformation on the GPU

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Taehyun Rhee, John Lewis, Ulrich Neumann

Journal: Computer Graphics ForumYear: 2006Citations: 60

Abstract WPSD (Weighted Pose Space Deformation) is an example based skinning method for articulated body animation. The per‐vertex computation required in WPSD can be parallelized in a SIMD (Single Instruction Multiple Data) manner and implemented on a GPU. While such vertex‐parallel computation is ...

Physical SciencesEngineeringComputational Mechanics
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Analog signal processing through space‐time digital metasurfaces

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Hamid Rajabalipanah, Ali Abdolali, Shahid Iqbal, Lei Zhang et al.

Journal: NanophotonicsYear: 2021Citations: 52

Abstract In the quest to realize analog signal processing using subwavelength metasurfaces, in this paper, we present the first demonstration of programmable time‐modulated metasurface processors based on the key properties of spatial Fourier transformation. Exploiting space‐time coding strategy ena...

Physical SciencesMaterials ScienceElectronic, Optical and Magnetic MaterialsOpen Access
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Step flow-based cellular automaton for the simulation of anisotropic etching of complex MEMS structures

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Yan Xing, Miguel A. Gosálvez, K. Satō

Journal: New Journal of PhysicsYear: 2007Citations: 49

An enhanced octree data representation is developed for use in atomistic simulations of the evolution of complex multivalued surfaces appearing during anisotropic etching of crystalline silicon in micro electro mechanical systems (MEMS) applications. The octree provides a good balance between accura...

Physical SciencesEngineeringElectrical and Electronic EngineeringOpen Access
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Co-authorship and co-occurrences analysis using Bibliometrix R-package: a casestudy of India and Bangladesh

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Samir Kumar Jalal

Journal: Annals of Library and Information Studies (ALIS)Year: 2019Citations: 47

Research collaboration between India and Bangladesh based on research output of 1156 papers jointly produced by bothcountries were retrieved from Web of Science for the period of 1991 to 2017.The collaboration network on co-authorshipand co-occurrences was build using BibliometrixR package. Top ten ...

Health SciencesHealth ProfessionsGeneral Health Professions
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GPU Accelerated Multiple-Relaxation-Time Lattice Boltzmann Simulation of Convective Flows in a Porous Media

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Md. Mamun Molla, Md Jahidul Haque, Amirul Khan, Suvash C. Saha

Journal: Frontiers in Mechanical EngineeringYear: 2018Citations: 34

A two-dimensional (2D) multiple-relaxation-time (MRT) lattice Boltzmann method (LBM) is used for porous media with the Brinkman-Forchheimer extended Darcy model to investigate the natural and mixed convection flows in a square cavity. This Brinkman-Forchheimer model is directly used through the forc...

Physical SciencesEngineeringComputational MechanicsOpen Access
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Cost-efficient design of a quantum multiplier–accumulator unit

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Hafiz Md. Hasan Babu

Journal: Quantum Information ProcessingYear: 2016Citations: 28
Physical SciencesComputer ScienceArtificial Intelligence
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Quantum Circuit Architecture Optimization for Variational Quantum Eigensolver via Monto Carlo Tree Search

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Fan‐Xu Meng, Ze‐Tong Li, Xutao Yu, Zaichen Zhang

Journal: IEEE Transactions on Quantum EngineeringYear: 2021Citations: 24

The advent of Noisy Intermediate-Scale Quantum (NISQ) devices provides crucial promise for the development of quantum algorithms. Variational quantum algorithms have emerged as one of the best hopes to utilize NISQ devices. Among these is the famous Variational Quantum Eigensolver (VQE), where one t...

Physical SciencesComputer ScienceArtificial IntelligenceOpen Access
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FeView: Finite element model (FEM) visualization and post-processing tool for OpenSees

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Md Motiur Rahman, Tahmina Tasnim Nahar, Dookie Kim

Journal: SoftwareXYear: 2021Citations: 19

This paper describes a newly developed tool, called FeView, which is a Python-based graphical user interface (GUI) for OpenSees solver. FeView offers an open-source and stand-alone windows system that is very easy and simple to use. It can support a wide range of element types (46 types) and all kin...

Physical SciencesEngineeringCivil and Structural EngineeringOpen Access
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Design and Implementation of a Generic 2-D Biorthogonal Discrete Wavelet Transform on an FPGA

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A. Benkrid, Danny Crookes, K. Benkrid

Journal: Research Portal (Queen's University Belfast)Year: 2001Citations: 18

This paper presents an FPGA architecture for the separable 2-D Biorthogonal Discrete Wavelet Transform (DWT) decomposition. The architecture is based on the Pyramid Algorithm Analysis, which handles computation along the border efficiently by using the method of symmetric extension. For a J stage wa...

Physical SciencesComputer ScienceComputer Vision and Pattern Recognition
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Python in Computational Science: Applications and Possibilities

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Md. Golam Rashed, Raquib Ahsan

Journal: International Journal of Computer ApplicationsYear: 2018Citations: 17

This paper focuses on the role of python in dramatic increase in productivity and high-level of code reuse in computational science. The salient features of python make it an ideal language for scientific computing exposing the shortcomings of legacy languages and prototyping platforms. Python provi...

Physical SciencesComputer ScienceArtificial IntelligenceOpen Access
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Accelerating Fast Fourier Transformation for Image Processing using Graphics Processing Unit

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Mohammad Nazmul Haque, Mohammad Shorif Uddin

Year: 2011Citations: 17

In a number of imaging modalities, the Fast Fourier Transform (FFT) is being used for the processing of images in its frequency domain rather than spatial domain. It is an important t image processing tool which is used to decompose an image into its sine and cosine components. The output of the tra...

Health SciencesMedicineRadiology, Nuclear Medicine and Imaging
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Mesoscopic CUDA 3D MRT-LBM Simulation of Natural Convection of Power-Law Fluids in a Differentially Heated Cubic Cavity with a Machine Learning Cross-Validation

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Md Farhad Hasan, Md. Mamun Molla, Sadia Siddiqa, Amirul Khan

Journal: Arabian Journal for Science and EngineeringYear: 2023Citations: 15
Physical SciencesEngineeringComputational Mechanics
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Low-Complexity Winograd Convolution Architecture Based on Stochastic Computing

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Huizheng Wang, Zaichen Zhang, Xiaohu You, Chuan Zhang

Year: 2018Citations: 15

Deep convolution neural networks (CNNs) usually require a large number of iterative convolution operations, which would consume significant amounts of hardware resources. In this paper, we propose an efficient convolution architecture based on Winograd algorithm for convolutional neural networks (CN...

Physical SciencesComputer ScienceComputer Networks and Communications
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