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Cache prefetching technology has become the mainstream data access optimization strategy in the data centers. However, the rapidly increasing of unstructured data generates massive pairwise access relationships, which can result in a heavy…

分布式、并行与集群计算 · 计算机科学 2021-12-28 Dongjie Zhu , Haiwen Du , Yundong Sun , Zhaoshuo Tian

We propose a new and easily-realizable distributed hash table (DHT) peer-to-peer structure, incorporating a random caching strategy that allows for {\em polylogarithmic search time} while having only a {\em constant cache} size. We also…

网络与互联网体系结构 · 计算机科学 2007-05-23 Nima Sarshar , Vwani Roychowdhury

Data warehouses organize data in a columnar format to enable faster scans and better compression. Modern systems offer a variety of column encodings that can reduce storage footprint and improve query performance. Selecting a good encoding…

数据库 · 计算机科学 2021-05-20 Lujing Cen , Andreas Kipf , Ryan Marcus , Tim Kraska

Deep hashing has been widely adopted for large-scale image retrieval, with numerous strategies proposed to optimize hash function learning. Pairwise-based methods are effective in learning hash functions that preserve local similarity…

计算机视觉与模式识别 · 计算机科学 2025-10-10 Xiaoxu Ma , Runhao Li , Zhenyu Weng

Interactive time responses are a crucial requirement for users analyzing large amounts of data. Such analytical queries are typically run in a distributed setting, with data being sharded across thousands of nodes for high throughput.…

数据库 · 计算机科学 2020-02-06 Bruhathi Sundarmurthy , Harshad Deshmukh , Paris Koutris , Jeffrey Naughton

Semantic hashing represents documents as compact binary vectors (hash codes) and allows both efficient and effective similarity search in large-scale information retrieval. The state of the art has primarily focused on learning hash codes…

信息检索 · 计算机科学 2021-03-29 Christian Hansen , Casper Hansen , Jakob Grue Simonsen , Stephen Alstrup , Christina Lioma

Data is the central asset of today's dynamically operating organization and their business. This data is usually stored in database. A major consideration is applied on the security of that data from the unauthorized access and intruders.…

数据库 · 计算机科学 2013-08-25 Manish Sharma , Atul Chaudhary , Santosh Kumar

Multi-modal hashing methods have gained popularity due to their fast speed and low storage requirements. Among them, the supervised methods demonstrate better performance by utilizing labels as supervisory signals compared with unsupervised…

计算机视觉与模式识别 · 计算机科学 2024-12-20 Jin-Yu Liu , Xian-Ling Mao , Tian-Yi Che , Rong-Cheng Tu

Modern Internet applications often produce a large volume of user activity records. Data analysts are interested in cohort analysis, or finding unusual user behavioral trends, in these large tables of activity records. In a traditional…

数据库 · 计算机科学 2016-05-05 Dawei Jiang , Qingchao Cai , Gang Chen , H. V. Jagadish , Beng Chin Ooi , Kian-Lee Tan , Anthony K. H. Tung

The distributed schedule optimization of energy storage constitutes a challenge. Such algorithms often expect an input set containing all feasible schedules or respectively require to efficiently search the schedule space. It is hardly…

多智能体系统 · 计算机科学 2022-11-07 Rico Schrage , Paul Hendrik Tiemann , Astrid Nieße

Due to its low storage cost and fast query speed, hashing has been widely used in large-scale image retrieval tasks. Hash bucket search returns data points within a given Hamming radius to each query, which can enable search at a constant…

机器学习 · 计算机科学 2024-05-07 Ming-Wei Li , Qing-Yuan Jiang , Wu-Jun Li

Dynamic load balancing lies at the heart of distributed caching. Here, the goal is to assign objects (load) to servers (computing nodes) in a way that provides load balancing while at the same time dynamically adjusts to the addition or…

数据结构与算法 · 计算机科学 2020-06-17 John Chen , Ben Coleman , Anshumali Shrivastava

A new compression method called difference-Huffman coding (DHC) is introduced in this paper. It is verified empirically that DHC results in a smaller multidimensional physical representation than those for other previously published…

数据库 · 计算机科学 2011-04-21 István Szépkúti

One of the most widely used samplers in practice is the component-wise Metropolis-Hastings (CMH) sampler that updates in turn the components of a vector valued Markov chain using accept-reject moves generated from a proposal distribution.…

统计计算 · 统计学 2017-03-22 Jinyoung Yang , Evgeny Levi , Radu V. Craiu , Jeffrey S. Rosenthal

The study of hashing is closely related to the analysis of balls and bins. It is well-known that instead of using a single hash function if we randomly hash a ball into two bins and place it in the smaller of the two, then this dramatically…

数据结构与算法 · 计算机科学 2007-05-23 Rina Panigrahy

We suggest a method for holding a dictionary data structure, which maps keys to values, in the spirit of Bloom Filters. The space requirements of the dictionary we suggest are much smaller than those of a hashtable. We allow storing n keys,…

数据结构与算法 · 计算机科学 2008-04-14 Ely Porat

Consistent hashing (CH) has been pivotal as a data router and load balancer in diverse fields, including distributed databases, cloud infrastructure, and peer-to-peer networks. However, existing CH algorithms often fall short in…

数据结构与算法 · 计算机科学 2023-11-21 Chao Dong , Fang Wang , Dan Feng

Currently, many verification algorithms are available to improve the reliability of software systems. Selecting the appropriate verification algorithm typically demands domain expertise and non-trivial manpower. An automated algorithm…

软件工程 · 计算机科学 2025-05-26 Jie Su , Liansai Deng , Cheng Wen , Rong Wang , Zhi Ma , Nan Zhang , Cong Tian , Zhenhua Duan , Shengchao Qin

A standard design pattern found in many concurrent data structures, such as hash tables or ordered containers, is an alternation of parallelizable sections that incur no data conflicts and critical sections that must run sequentially and…

分布式、并行与集群计算 · 计算机科学 2021-10-13 Vitaly Aksenov , Dan Alistarh , Petr Kuznetsov

Hashing is widely applied to large-scale image retrieval due to the storage and retrieval efficiency. Existing work on deep hashing assumes that the database in the target domain is identically distributed with the training set in the…

计算机视觉与模式识别 · 计算机科学 2017-12-14 Zhangjie Cao , Mingsheng Long , Chao Huang , Jianmin Wang