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相关论文: Hardness-Preserving Reductions via Cuckoo Hashing

200 篇论文

Despite considerable progress in neural relevance ranking techniques, search engines still struggle to process complex queries effectively - both in terms of precision and recall. Sparse and dense Pseudo-Relevance Feedback (PRF) approaches…

信息检索 · 计算机科学 2023-12-06 Iain Mackie , Shubham Chatterjee , Sean MacAvaney , Jeffrey Dalton

Deep hashing enables image retrieval by end-to-end learning of deep representations and hash codes from training data with pairwise similarity information. Subject to the distribution skewness underlying the similarity information, most…

计算机视觉与模式识别 · 计算机科学 2018-09-06 Zhangjie Cao , Ziping Sun , Mingsheng Long , Jianmin Wang , Philip S. Yu

Honeyword is a representative "honey" technique that employs decoy objects to mislead adversaries and protect the real ones. To assess the security of a Honeyword system, two metrics--flatness and success-number--have been proposed and…

密码学与安全 · 计算机科学 2025-04-22 Pengcheng Su , Haibo Cheng , Wenting Li , Ping Wang

Coalescing RDMA and Persistent Memory (PM) delivers high end-to-end performance for networked storage systems, which requires rethinking the design of efficient hash structures. In general, existing hashing schemes separately optimize RDMA…

分布式、并行与集群计算 · 计算机科学 2021-07-15 Xinxin Liu , Yu Hua , Rong Bai

This paper, for the first time, addresses the questions related to the connections between the quantum pseudorandomness and quantum hardware assumptions, specifically quantum physical unclonable functions (qPUFs). Our results show that the…

量子物理 · 物理学 2022-03-31 Mina Doosti , Niraj Kumar , Elham Kashefi , Kaushik Chakraborty

As deep neural networks (DNNs) are widely applied in the physical world, many researches are focusing on physical-world adversarial examples (PAEs), which introduce perturbations to inputs and cause the model's incorrect outputs. However,…

计算机视觉与模式识别 · 计算机科学 2024-12-24 Yichen Wang , Yuxuan Chou , Ziqi Zhou , Hangtao Zhang , Wei Wan , Shengshan Hu , Minghui Li

It is becoming increasingly apparent that probabilistic approaches can overcome conservatism and computational complexity of the classical worst-case deterministic framework and may lead to designs that are actually safer. In this paper we…

应用统计 · 统计学 2008-11-01 Xinjia Chen , Kemin Zhou , Jorge L. Aravena

This paper considers the basic question of how strong of a probabilistic guarantee can a hash table, storing $n$ $(1 + \Theta(1)) \log n$-bit key/value pairs, offer? Past work on this question has been bottlenecked by limitations of the…

数据结构与算法 · 计算机科学 2022-09-19 William Kuszmaul

Recent years have seen more and more demand for a unified framework to address multiple realistic image retrieval tasks concerning both category and attributes. Considering the scale of modern datasets, hashing is favorable for its low…

计算机视觉与模式识别 · 计算机科学 2016-07-20 Haomiao Liu , Ruiping Wang , Shiguang Shan , Xilin Chen

Deep neural network image classifiers are reported to be susceptible to adversarial evasion attacks, which use carefully crafted images created to mislead a classifier. Many adversarial attacks belong to the category of dense attacks, which…

计算机视觉与模式识别 · 计算机科学 2022-02-22 He Zhao , Thanh Nguyen , Trung Le , Paul Montague , Olivier De Vel , Tamas Abraham , Dinh Phung

Homomorphic encryption enables arbitrary computation over data while it remains encrypted. This privacy-preserving feature is attractive for machine learning, but requires significant computational time due to the large overhead of the…

密码学与安全 · 计算机科学 2018-11-27 Edward Chou , Josh Beal , Daniel Levy , Serena Yeung , Albert Haque , Li Fei-Fei

Embedding image features into a binary Hamming space can improve both the speed and accuracy of large-scale query-by-example image retrieval systems. Supervised hashing aims to map the original features to compact binary codes in a manner…

机器学习 · 计算机科学 2016-11-17 Guosheng Lin , Chunhua Shen , Anton van den Hengel

Despite numerous countermeasures proposed by practitioners and researchers, remote control-flow alteration of programs with memory-safety vulnerabilities continues to be a realistic threat. Guaranteeing that complex software is completely…

密码学与安全 · 计算机科学 2017-02-20 Martín Ochoa , Sebastian Banescu , Cynthia Disenfeld , Gilles Barthe , Vijay Ganesh

Dietzfelbinger and Weidling [DW07] proposed a natural variation of cuckoo hashing where each of $cn$ objects is assigned $k = 2$ intervals of size $\ell$ in a linear (or cyclic) hash table of size $n$ and both start points are chosen…

数据结构与算法 · 计算机科学 2019-12-18 Stefan Walzer

Query evaluation over probabilistic databases is notoriously intractable -- not only in combined complexity, but often in data complexity as well. This motivates the study of approximation algorithms, and particularly of combined FPRASes,…

数据库 · 计算机科学 2025-12-17 Antoine Amarilli , Timothy van Bremen , Octave Gaspard , Kuldeep S. Meel

Encrypted deduplication combines encryption and deduplication to simultaneously achieve both data security and storage efficiency. State-of-the-art encrypted deduplication systems mainly build on deterministic encryption to preserve…

密码学与安全 · 计算机科学 2019-10-10 Jingwei Li , Patrick P. C. Lee , Chufeng Tan , Chuan Qin , Xiaosong Zhang

Robin Hood hashing is a variation on open addressing hashing designed to reduce the maximum search time as well as the variance in the search time for elements in the hash table. While the case of insertions only using Robin Hood hashing is…

数据结构与算法 · 计算机科学 2014-07-14 Michael Mitzenmacher

Survival analysis is an important research topic with applications in healthcare, business, and manufacturing. One essential tool in this area is the Cox proportional hazards (CPH) model, which is widely used for its interpretability,…

机器学习 · 计算机科学 2024-10-28 Jiachang Liu , Rui Zhang , Cynthia Rudin

Pseudo-relevance feedback (PRF) is commonly used to boost the performance of traditional information retrieval (IR) models by using top-ranked documents to identify and weight new query terms, thereby reducing the effect of query-document…

信息检索 · 计算机科学 2018-11-01 Canjia Li , Yingfei Sun , Ben He , Le Wang , Kai Hui , Andrew Yates , Le Sun , Jungang Xu

Vulnerabilities related to weak passwords are a pressing global economic and security issue. We report a novel, simple, and effective approach to address the weak password problem. Building upon chaotic dynamics, criticality at phase…

密码学与安全 · 计算机科学 2015-05-27 T. V. Laptyeva , S. Flach , K. Kladko