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We study online algorithms with predictions using distributional advice, a type of prediction that arises when leveraging expert knowledge or historical data. To demonstrate the usefulness and versatility of this framework, we focus on the…

数据结构与算法 · 计算机科学 2025-09-09 Clément L. Canonne , Kenny Chen , Julián Mestre

This paper presents the first convergence result for random search algorithms to a subset of the Pareto set of given maximum size k with bounds on the approximation quality. The core of the algorithm is a new selection criterion based on a…

最优化与控制 · 数学 2011-11-10 Marco Laumanns

Previous work on tabulation hashing by Patrascu and Thorup from STOC'11 on simple tabulation and from SODA'13 on twisted tabulation offered Chernoff-style concentration bounds on hash based sums, e.g., the number of balls/keys hashing to a…

数据结构与算法 · 计算机科学 2020-08-11 Anders Aamand , Jakob B. T. Knudsen , Mathias B. T. Knudsen , Peter M. R. Rasmussen , Mikkel Thorup

We consider the matching problem on the line with advice complexity. We give a 1-competitive online algorithm with advice complexity $n-1,$ and show that there is no 1-competitive online algorithm reading less than $n-1$ bits of advice.…

数据结构与算法 · 计算机科学 2024-12-11 Béla Csaba , Judit Nagy-György

Deep supervised hashing for image retrieval has attracted researchers' attention due to its high efficiency and superior retrieval performance. Most existing deep supervised hashing works, which are based on pairwise/triplet labels, suffer…

计算机视觉与模式识别 · 计算机科学 2021-03-18 Ming Zhang , Hong Yan

Due to the high storage and search efficiency, hashing has become prevalent for large-scale similarity search. Particularly, deep hashing methods have greatly improved the search performance under supervised scenarios. In contrast,…

计算机视觉与模式识别 · 计算机科学 2019-05-10 Erkun Yang , Tongliang Liu , Cheng Deng , Wei Liu , Dacheng Tao

Although hash function learning algorithms have achieved great success in recent years, most existing hash models are off-line, which are not suitable for processing sequential or online data. To address this problem, this work proposes an…

计算机视觉与模式识别 · 计算机科学 2017-04-10 Long-Kai Huang , Qiang Yang , Wei-Shi Zheng

Random hashing can provide guarantees regarding the performance of data structures such as hash tables---even in an adversarial setting. Many existing families of hash functions are universal: given two data objects, the probability that…

数据结构与算法 · 计算机科学 2018-10-16 Dmytro Ivanchykhin , Sergey Ignatchenko , Daniel Lemire

We initiate a study of computable online (c-online) learning, which we analyze under varying requirements for "optimality" in terms of the mistake bound. Our main contribution is to give a necessary and sufficient condition for optimal…

机器学习 · 计算机科学 2023-02-10 Niki Hasrati , Shai Ben-David

We initiate a study of algorithms with a focus on the computational complexity of individual elements, and introduce the fragile complexity of comparison-based algorithms as the maximal number of comparisons any individual element takes…

数据结构与算法 · 计算机科学 2019-09-04 Peyman Afshani , Rolf Fagerberg , David Hammer , Riko Jacob , Irina Kostitsyna , Ulrich Meyer , Manuel Penschuck , Nodari Sitchinava

In a recent paper from SODA11 \cite{kminwise} the authors introduced a general framework for exponential time improvement of \minwise based algorithms by defining and constructing almost \kmin independent family of hash functions. Here we…

数据结构与算法 · 计算机科学 2011-02-18 Guy Feigenblat , Ely Porat , Ariel Shiftan

Recently, hashing methods have been widely used in large-scale image retrieval. However, most existing hashing methods did not consider the hierarchical relation of labels, which means that they ignored the rich information stored in the…

计算机视觉与模式识别 · 计算机科学 2017-09-13 Dan Wang , Heyan Huang , Chi Lu , Bo-Si Feng , Liqiang Nie , Guihua Wen , Xian-Ling Mao

Consistent Hashing functions are widely used for load balancing across a variety of applications. However, the original presentation and typical implementations of Consistent Hashing rely on randomised allocation of hash codes to keys which…

数据结构与算法 · 计算机科学 2015-03-19 Matthew Sackman

Vocabulary learning by children can be characterized by many biases. When encountering a new word, children as well as adults, are biased towards assuming that it means something totally different from the words that they already know. To…

计算与语言 · 计算机科学 2017-02-09 Ramon Ferrer-i-Cancho

Deep hashing has been widely applied to large-scale image retrieval by encoding high-dimensional data points into binary codes for efficient retrieval. Compared with pairwise/triplet similarity based hash learning, central similarity based…

计算机视觉与模式识别 · 计算机科学 2022-09-21 Zhiwei Zhang , Hanyu Peng

This work focuses on representing very high-dimensional global image descriptors using very compact 64-1024 bit binary hashes for instance retrieval. We propose DeepHash: a hashing scheme based on deep networks. Key to making DeepHash work…

计算机视觉与模式识别 · 计算机科学 2016-02-17 Jie Lin , Olivier Morere , Vijay Chandrasekhar , Antoine Veillard , Hanlin Goh

In Linear Hashing ($\mathsf{LH}$) with $\beta$ bins on a size $u$ universe ${\mathcal{U}=\{0,1,\ldots, u-1\}}$, items $\{x_1,x_2,\ldots, x_n\}\subset \mathcal{U}$ are placed in bins by the hash function $$x_i\mapsto (ax_i+b)\mod p \mod…

数据结构与算法 · 计算机科学 2024-05-21 Alek Westover

Hashing methods have been widely used for efficient similarity retrieval on large scale image database. Traditional hashing methods learn hash functions to generate binary codes from hand-crafted features, which achieve limited accuracy…

计算机视觉与模式识别 · 计算机科学 2017-11-08 Jian Zhang , Yuxin Peng

In [1], a clustering algorithm was given to find the centers of clusters quickly. However, the accuracy of this algorithm heavily depend on the threshold value of d-c. Furthermore, [1] has not provided any efficient way to select the…

机器学习 · 计算机科学 2015-01-21 Shuliang Wang , Dakui Wang , Caoyuan Li , Yan Li

Learning interpretable models has become a major focus of machine learning research, given the increasing prominence of machine learning in socially important decision-making. Among interpretable models, rule lists are among the best-known…

机器学习 · 计算机科学 2024-06-19 Leonardo Pellegrina , Fabio Vandin