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Coded caching is recognized as an effective method for alleviating network congestion during peak periods by leveraging local caching and coded multicasting gains. The key challenge in designing coded caching schemes lies in simultaneously…

信息论 · 计算机科学 2026-01-16 Yongcheng Yang , Minquan Cheng , Kai Wan , Giuseppe Caire

We propose an efficient online dictionary learning algorithm for kernel-based sparse representations. In this framework, input signals are nonlinearly mapped to a high-dimensional feature space and represented sparsely using a virtual…

机器学习 · 计算机科学 2025-07-03 Ghasem Alipoor , Karl Skretting

This paper seeks to combine dictionary learning and hierarchical image representation in a principled way. To make dictionary atoms capturing additional information from extended receptive fields and attain improved descriptive capacity, we…

计算机视觉与模式识别 · 计算机科学 2019-11-11 Tong Zhang , Fatih Porikli

Classifiers based on sparse representations have recently been shown to provide excellent results in many visual recognition and classification tasks. However, the high cost of computing sparse representations at test time is a major…

计算机视觉与模式识别 · 计算机科学 2014-10-03 Alhussein Fawzi , Mike Davies , Pascal Frossard

Dimensionality reduction-based dictionary learning methods in the literature have often used iterative random projections. The dimensionality of such a random projection matrix is a random number that might not lead to a separable subspace…

计算机视觉与模式识别 · 计算机科学 2026-03-17 G. Madhuri , Atul Negi , Kaluri V. Rangarao

Minwise hashing is a fundamental and one of the most successful hashing algorithm in the literature. Recent advances based on the idea of densification~\cite{Proc:OneHashLSH_ICML14,Proc:Shrivastava_UAI14} have shown that it is possible to…

数据结构与算法 · 计算机科学 2017-03-16 Anshumali Shrivastava

LLM inference is increasingly limited by memory bandwidth, and the bottleneck worsens at long context as the KV cache grows. CXL memory adds capacity to offload weights and KV, but its link and device-side DDR bandwidth are far below HBM,…

硬件体系结构 · 计算机科学 2026-02-02 Rui Xie , Asad Ul Haq , Yunhua Fang , Linsen Ma , Zirak Burzin Engineer , Liu Liu , Tong Zhang

We present CREST (Compact Retrieval-Based Speculative Decoding), a redesign of REST that allows it to be effectively "compacted". REST is a drafting technique for speculative decoding based on retrieving exact n-gram matches of the most…

计算与语言 · 计算机科学 2024-08-12 Sophia Ho , Jinsol Park , Patrick Wang

Deep supervised hashing is essential for efficient storage and search in large-scale image retrieval. Traditional deep supervised hashing models generate single-length hash codes, but this creates a trade-off between efficiency and…

计算机视觉与模式识别 · 计算机科学 2025-06-02 Liyang He , Yuren Zhang , Rui Li , Zhenya Huang , Runze Wu , Enhong Chen

In the era of large foundation models, the quality of embeddings has become a central determinant of downstream task performance and overall system capability. Yet widely used dense embeddings are often extremely high-dimensional, incurring…

机器学习 · 计算机科学 2026-03-03 Lixuan Guo , Yifei Wang , Tiansheng Wen , Yifan Wang , Aosong Feng , Bo Chen , Stefanie Jegelka , Chenyu You

The deployment of large language models (LLMs) is often hindered by the extensive memory requirements of the Key-Value (KV) cache, especially as context lengths increase. Existing approaches to reduce the KV cache size involve either…

计算与语言 · 计算机科学 2024-11-05 Alessio Devoto , Yu Zhao , Simone Scardapane , Pasquale Minervini

As large language models (LLMs) continue to scale, the memory footprint of key-value (KV) caches during inference has become a significant bottleneck. Existing approaches primarily focus on compressing KV caches within a single prompt or…

计算与语言 · 计算机科学 2025-12-18 Xinye Zhao , Spyridon Mastorakis

Hashing method maps similar data to binary hashcodes with smaller hamming distance, and it has received a broad attention due to its low storage cost and fast retrieval speed. However, the existing limitations make the present algorithms…

计算机视觉与模式识别 · 计算机科学 2016-09-29 Shifeng Zhang , Jianmin Li , Jinma Guo , Bo Zhang

Sequential test-time scaling is a promising training-free method to improve large reasoning model accuracy, but as currently implemented, significant limitations have been observed. Inducing models to think for longer can increase their…

人工智能 · 计算机科学 2026-01-16 Michael R. Metel , Yufei Cui , Boxing Chen , Prasanna Parthasarathi

Algebraic Subspace Clustering (ASC) is a simple and elegant method based on polynomial fitting and differentiation for clustering noiseless data drawn from an arbitrary union of subspaces. In practice, however, ASC is limited to…

计算机视觉与模式识别 · 计算机科学 2015-10-16 Manolis C. Tsakiris , Rene Vidal

Locality-sensitive hashing (LSH) is a well-known solution for approximate nearest neighbor (ANN) search with theoretical guarantees. Traditional LSH-based methods mainly focus on improving the efficiency and accuracy of query phase by…

数据库 · 计算机科学 2026-03-27 Jiuqi Wei , Xiaodong Lee , Botao Peng , Quanqing Xu , Chuanhui Yang , Themis Palpanas

In compressed sensing (CS), sparse signals can be reconstructed from significantly fewer samples than required by the Nyquist-Shannon sampling theorem. While non-sparse signals can be sparsely represented in appropriate transformation…

信息论 · 计算机科学 2026-03-13 Qi Qi , Abdelhamid Tayebi , Daizhan Cheng , Jun-e Feng

Locality-sensitive hashing (LSH) based frameworks have been used efficiently to select weight vectors in a dense hidden layer with high cosine similarity to an input, enabling dynamic pruning. While this type of scheme has been shown to…

机器学习 · 计算机科学 2023-06-06 Tahseen Rabbani , Marco Bornstein , Furong Huang

We show in this work that reinforcement learning can be successfully applied to decoding short to moderate length sparse graph-based channel codes. Specifically, we focus on low-density parity check (LDPC) codes, which for example have been…

信息论 · 计算机科学 2020-10-20 Salman Habib , Allison Beemer , Joerg Kliewer

In complex visual recognition tasks it is typical to adopt multiple descriptors, that describe different aspects of the images, for obtaining an improved recognition performance. Descriptors that have diverse forms can be fused into a…

计算机视觉与模式识别 · 计算机科学 2015-06-15 Jayaraman J. Thiagarajan , Karthikeyan Natesan Ramamurthy , Andreas Spanias