Results 11 to 20 of about 18,574 (304)

Quantum Computing Approaches for Vector Quantization—Current Perspectives and Developments [PDF]

open access: yesEntropy, 2023
In the field of machine learning, vector quantization is a category of low-complexity approaches that are nonetheless powerful for data representation and clustering or classification tasks. Vector quantization is based on the idea of representing a data
Alexander Engelsberger, Thomas Villmann
doaj   +2 more sources

Spherical-Cap Approximation of Vector Quantization for Quantization-Based Combining in MIMO Broadcast Channels with Limited Feedback [PDF]

open access: yesSensors, 2022
The spherical-cap approximation of vector quantization (SCVQ) is an analytical model used for the mathematical analysis of multiple-input multiple-output (MIMO) systems with limited feedback.
Moonsik Min, Tae-Kyoung Kim
doaj   +2 more sources

Steganography based on Vector Quantization Technique [PDF]

open access: goldAl-Rafidain Journal of Computer Sciences and Mathematics, 2013
The present research was aimed to implement a new Steganographic algorithm for Images in Vector Quantization (VQ) compressed domain, since the compressed image considers a secure cover for data to be embedded to avoid attention of unauthorized persons ...
Ansam Osamah, Ahmed Nori
doaj   +2 more sources

Accelerating Families of Fuzzy K-Means Algorithms for Vector Quantization Codebook Design [PDF]

open access: yesSensors, 2016
The performance of signal processing systems based on vector quantization depends on codebook design. In the image compression scenario, the quality of the reconstructed images depends on the codebooks used.
Edson Mata   +4 more
doaj   +2 more sources

MECO: Mixture-of-Expert Codebooks for Multiple Dense Prediction Tasks [PDF]

open access: yesSensors
Autonomous systems operating in embedded environments require robust scene understanding under computational constraints. Multi-task learning offers a compact alternative to deploying multiple task-specific models by jointly solving dense prediction ...
Gyutae Hwang, Sang Jun Lee
doaj   +2 more sources

NSVQ: Noise Substitution in Vector Quantization for Machine Learning

open access: yesIEEE Access, 2022
Machine learning algorithms have been shown to be highly effective in solving optimization problems in a wide range of applications. Such algorithms typically use gradient descent with backpropagation and the chain rule.
Mohammad Hassan Vali, Tom Backstrom
doaj   +1 more source

Research on Quantization Parameter Decision Scheme for High Efficiency Video Coding

open access: yesApplied Sciences, 2023
High-Efficiency Video Coding (HEVC) is one of the most widely studied coding standards. It still uses the block-based hybrid coding framework of Advanced Video Coding (AVC), and compared to AVC, it can double the compression ratio while maintaining the ...
Xuesong Jin, Yansong Chai
doaj   +1 more source

New Method to Reduce the Size of Codebook in Vector Quantization of Images [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2005
The vector quantization method for image compression inherently requires the generation of a codebook which has to be made available for both the encoding and decoding processes.
Sahar Ahmed
doaj   +1 more source

Multiple-Description Multistage Vector Quantization

open access: yesEURASIP Journal on Audio, Speech, and Music Processing, 2007
Multistage vector quantization (MSVQ) is a technique for low complexity implementation of high-dimensional quantizers, which has found applications within speech, audio, and image coding.
Pradeepa Yahampath
doaj   +2 more sources

Improving Performance of Digital Mobile Fronthaul Employing 2-D Vector Quantization With Vector Linear Prediction

open access: yesIEEE Photonics Journal, 2019
In this paper, a two-dimensional (2-D) vector quantization with vector linear prediction (VLP-VQ) is proposed to improve the transmission performance of the digital mobile fronthaul (MFH).
Jia Ye   +5 more
doaj   +1 more source

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