Results 1 to 10 of about 128,513 (359)
Online Clustered Codebook [PDF]
2023 IEEE/CVF International Conference on Computer Vision (ICCV), 2023 Vector Quantisation (VQ) is experiencing a comeback in machine learning, where it is increasingly used in representation learning. However, optimizing the codevectors in existing VQ-VAE is not entirely trivial. A problem is codebook collapse, where only a small subset of codevectors receive gradients useful for their optimisation, whereas a majority of
Zheng, C, Vedaldi, A
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SCMA CODEBOOK DESIGN BASED ON GRADIENT ASCENT ALGORITHM [PDF]
Proceedings on Engineering Sciences, 2022 Sparse Code Multiple Access (SCMA) is a non-orthogonal multiple access scheme, which improves spectrum efficiency. SCMA codebooks determine the bit error rate (BER) performance.
Islam Kanatbekuli +4 more
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BOVW FOR CLASSIFICATION IN GEOMETRICS SHAPES [PDF]
Applied Computer Science, 2018 The classification of forms is a process used in various areas, to perform a classification based on the manipulation of shape contours it is necessary to extract certain common characteristics, it is proposed to use the bag of visual words model, this ...
Baldemar ZURITA +3 more
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Mathematics, 2023 For constructing the best local codebook for image compression, there are many Vector Quantization (VQ) procedures, but the simplest VQ procedure is the Linde–Buzo–Gray (LBG) procedure.
Aditya Bakshi +7 more
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SCMA Codebook Design Based on Divided Extended Mother Codebook [PDF]
IEEE Access, 2021 Sparse code multiple access (SCMA) is one of the competitive non-orthogonal multiple access (NOMA) techniques for the next generation communication systems. In this paper, we put forward a simple and efficient design method named divided extended mother codebook (DEMC) to construct SCMA codebooks based on golden angle modulation (GAM) constellation ...
Zhaoyang Hou +3 more
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IEEE Access, 2021 5G new radio (NR) provides features such as enhanced mobile broadband (eMBB) services and massive machine-type communications (mMTC). Multiple-input multiple-output (MIMO) transmission is an essential technique to enable these features, using antenna ...
Wonjae Ryoo, Wonjin Sung
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Speaker Sound Coding Using Vector Quantization Technique (Vq) [PDF]
Engineering and Technology Journal, 2014 The key objective of this research is to compress the speech sound or in another meaning coding speaker sound with a small matrix called code book represent the speaker sound information this is done by using Vector Quantization method (VQ).The sound ...
Oday Kamil Hamid
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Steganography based on Vector Quantization Technique [PDF]
Al-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
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Ecology and Society, 2021 Manual content analysis provides a systematic and reliable method to analyze patterns within a narrative text, but for larger datasets, where human coding is not feasible, automated content analysis methods present enticing and time-efficient solutions ...
Aviv Suan +2 more
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