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The box-constrained integer least squares problem (BILS) arises in MIMO wireless communications applications. Typically a sphere decoding algorithm (a tree search algorithm) is used to solve the problem. In order to make the search…

信息论 · 计算机科学 2012-04-09 Stephen Breen , Xiao-Wen Chang

With the rising quantity of textual data available in electronic format, the need to organize it become a highly challenging task. In the present paper, we explore a document organization framework that exploits an intelligent hierarchical…

信息检索 · 计算机科学 2015-04-02 Rajendra Kumar Roul , Shubham Rohan Asthana , Sanjay Kumar Sahay

Large language models (LLMs) have shown remarkable performance in various natural language processing tasks. However, a primary constraint they face is the context limit, i.e., the maximum number of tokens they can process. Previous works…

机器学习 · 计算机科学 2024-04-17 Woomin Song , Seunghyuk Oh , Sangwoo Mo , Jaehyung Kim , Sukmin Yun , Jung-Woo Ha , Jinwoo Shin

Expansion-enhanced sparse lexical representation improves information retrieval (IR) by minimizing vocabulary mismatch problems during lexical matching. In this paper, we explore the potential of jointly learning dense semantic…

机器学习 · 计算机科学 2024-05-24 Biplob Biswas , Rajiv Ramnath

Traditional search algorithms for computer hologram generation such as Direct Search and Simulated Annealing offer some of the best hologram qualities at convergence when compared to rival approaches. Their slow generation times and high…

图像与视频处理 · 电气工程与系统科学 2020-08-28 Peter J. Christopher , Jamie D. Lake , Daoming Dong , Hannah J. Joyce , Timothy D. Wilkinson

The paper introduces a new lossless, highly robust compression algorithm that similar with LZW algorithm, yet the algorithm discards dictionary processing and uses irregular sequences with massive, random information instead. Then the paper…

信号处理 · 电气工程与系统科学 2020-06-24 Rui Zhu

Sequence models such as transformers require inputs to be represented as one-dimensional sequences. In vision, this typically involves flattening images using a fixed row-major (raster-scan) order. While full self-attention is…

机器学习 · 计算机科学 2025-10-24 Declan Kutscher , David M. Chan , Yutong Bai , Trevor Darrell , Ritwik Gupta

Binary codes are widely used to represent the data due to their small storage and efficient computation. However, there exists an ambiguity problem that lots of binary codes share the same Hamming distance to a query. To alleviate the…

计算机视觉与模式识别 · 计算机科学 2020-06-12 Zhenyu Weng , Yuesheng Zhu

Sorting is an essential operation in computer science with direct consequences on the performance of large scale data systems, real-time systems, and embedded computation. However, no sorting algorithm is optimal under all distributions of…

数据结构与算法 · 计算机科学 2025-06-27 Shrinivass Arunachalam Balasubramanian

In many important applications -- such as search engines and relational database systems -- data is stored in the form of arrays of integers. Encoding and, most importantly, decoding of these arrays consumes considerable CPU time.…

信息检索 · 计算机科学 2021-02-02 Daniel Lemire , Leonid Boytsov

A scalable graphical method is presented for selecting, and partitioning datasets for the training phase of a classification task. For the heuristic, a clustering algorithm is required to get its computation cost in a reasonable proportion…

机器学习 · 计算机科学 2019-07-25 Sumedh Yadav , Mathis Bode

Compression algorithms are important for data oriented tasks, especially in the era of Big Data. Modern processors equipped with powerful SIMD instruction sets, provide us an opportunity for achieving better compression performance.…

信息检索 · 计算机科学 2015-04-15 Wayne Xin Zhao , Xudong Zhang , Daniel Lemire , Dongdong Shan , Jian-Yun Nie , Hongfei Yan , Ji-Rong Wen

Compression is beneficial because it helps detract resource usage. It reduces data storage space as well as transmission traffic and improves web pages loading. Run-length coding (RLC) is a lossless data compression algorithm. Data are…

数据结构与算法 · 计算机科学 2016-11-30 Kaveh Geyratmand Haghighi , Mirkamal Mirnia , Ahmad Habibizad Navin

Many services today massively and continuously produce log files of different and varying formats. These logs are important since they contain information about the application activities, which is necessary for improvements by analyzing…

信息检索 · 计算机科学 2023-04-11 Igor Cherepanov , Jonathan Geraldi Joewono , Arjan Kuijper , Jörn Kohlhammer

Similarity search approaches based on graph walks have recently attained outstanding speed-accuracy trade-offs, taking aside the memory requirements. In this paper, we revisit these approaches by considering, additionally, the memory…

计算机视觉与模式识别 · 计算机科学 2018-06-07 Matthijs Douze , Alexandre Sablayrolles , Hervé Jégou

Recent years have witnessed extensive attention in binary code learning, a.k.a. hashing, for nearest neighbor search problems. It has been seen that high-dimensional data points can be quantized into binary codes to give an efficient…

计算机视觉与模式识别 · 计算机科学 2016-11-22 Hong Liu , Rongrong Ji , Yongjian Wu , Feiyue Huang

An agglomerative hierarchical clustering (AHC) framework and algorithm named HOSil based on a new linkage metric optimized by the average silhouette width (ASW) index is proposed. A conscientious investigation of various clustering methods…

统计方法学 · 统计学 2019-09-30 Fatima Batool

While modern general-purpose computing systems have ample amounts of memory, it is still the case that embedded computer systems, such as in a refrigerator, are memory limited; hence, such embedded systems motivate the need for strictly…

数据结构与算法 · 计算机科学 2026-03-09 Ofek Gila , Michael T. Goodrich , Vinesh Sridhar

The ability of fast similarity search at large scale is of great importance to many Information Retrieval (IR) applications. A promising way to accelerate similarity search is semantic hashing which designs compact binary codes for a large…

信息检索 · 计算机科学 2010-04-30 Dell Zhang , Jun Wang , Deng Cai , Jinsong Lu

This paper aims to improve the performance of large language models by addressing the variable computational demands in inference steps, where some tokens require more computational resources than others. We present HARP, a simple…

计算与语言 · 计算机科学 2025-05-27 Romain Storaï , Seung-won Hwang