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Estimating set similarity and detecting highly similar sets are fundamental problems in areas such as databases, machine learning, and information retrieval. MinHash is a well-known technique for approximating Jaccard similarity of sets and…

Data Structures and Algorithms · Computer Science 2019-05-23 Pinghui Wang , Yiyan Qi , Yuanming Zhang , Qiaozhu Zhai , Chenxu Wang , John C. S. Lui , Xiaohong Guan

Deep image hashing aims to map input images into simple binary hash codes via deep neural networks and thus enable effective large-scale image retrieval. Recently, hybrid networks that combine convolution and Transformer have achieved…

Computer Vision and Pattern Recognition · Computer Science 2024-05-15 Chao He , Hongxi Wei

HighwayHash is a new pseudo-random function based on SIMD multiply and permute instructions for thorough and fast hashing. It is 5.2 times as fast as SipHash for 1 KiB inputs. An open-source implementation is available under a permissive…

Cryptography and Security · Computer Science 2017-02-07 Jyrki Alakuijala , Bill Cox , Jan Wassenberg

We show how to answer spatial multiple-set intersection queries in O(n(log w)/w + kt) expected time, where n is the total size of the t sets involved in the query, w is the number of bits in a memory word, k is the output size, and c is any…

Data Structures and Algorithms · Computer Science 2017-08-31 Michael T. Goodrich

cryptographic hash function is a deterministic procedure that compresses an arbitrary block of numerical data and returns a fixed-size bit string. There exist many hash functions: MD5, HAVAL, SHA, ... It was reported that these hash…

Cryptography and Security · Computer Science 2011-11-23 Rene Ndoundam , Juvet Karnel Sadie

Bytewise approximate matching algorithms have in recent years shown significant promise in de- tecting files that are similar at the byte level. This is very useful for digital forensic investigators, who are regularly faced with the…

Cryptography and Security · Computer Science 2022-11-15 David Lillis , Frank Breitinger , Mark Scanlon

The hybrid hiding encryption algorithm, as its name implies, embraces concepts from both steganography and cryptography. In this exertion, an improved micro-architecture Field Programmable Gate Array (FPGA) implementation of this algorithm…

Cryptography and Security · Computer Science 2011-11-09 Hala A. Farouk , Magdy Saeb

In this work, we aim to study when learned models are better hash functions, particular for hash-maps. We use lightweight piece-wise linear models to replace the hash functions as they have small inference times and are sufficiently general…

Databases · Computer Science 2021-07-06 Ibrahim Sabek , Kapil Vaidya , Dominik Horn , Andreas Kipf , Tim Kraska

Homomorphic encryption (HE) is a privacy-preserving technique that enables computation directly over ciphertext. Unfortunately, a key challenge for HE is that implementations can be impractically slow and have limits on computation that can…

Cryptography and Security · Computer Science 2022-03-08 Hsuan Hsiao , Vincent Lee , Brandon Reagen , Armin Alaghi

For nearly six decades, the central open question in the study of hash tables has been to determine the optimal achievable tradeoff curve between time and space. State-of-the-art hash tables offer the following guarantee: If keys/values are…

Data Structures and Algorithms · Computer Science 2021-11-05 Michael A. Bender , Martín Farach-Colton , John Kuszmaul , William Kuszmaul , Mingmou Liu

In the age of big data, information security has become a major issue of debate, especially with the rise of the Internet of Things (IoT), where attackers can effortlessly obtain physical access to edge devices. The hash algorithm is the…

Cryptography and Security · Computer Science 2022-08-17 Jingyao Zhang , Elaheh Sadredini

Parallel best-first search algorithms such as Hash Distributed A* (HDA*) distribute work among the processes using a global hash function. We analyze the search and communication overheads of state-of-the-art hash-based parallel best-first…

Artificial Intelligence · Computer Science 2017-11-13 Yuu Jinnai , Alex Fukunaga

Homomorphic encryption (HE) has found extensive utilization in federated learning (FL) systems, capitalizing on its dual advantages: (i) ensuring the confidentiality of shared models contributed by participating entities, and (ii) enabling…

Cryptography and Security · Computer Science 2023-08-10 Dongfang Zhao

The power of two choices is a classic paradigm for load balancing when assigning $m$ balls to $n$ bins. When placing a ball, we pick two bins according to two hash functions $h_0$ and $h_1$, and place the ball in the least loaded bin.…

Data Structures and Algorithms · Computer Science 2016-01-26 Søren Dahlgaard , Mathias Bæk Tejs Knudsen , Eva Rotenberg , Mikkel Thorup

Fully Homomorphic Encryption (FHE) enables computations on encrypted data, preserving confidentiality without the need for decryption. However, FHE is often hindered by significant performance overhead, particularly for high-precision and…

Cryptography and Security · Computer Science 2024-09-06 Chao Wang , Shubing Yang , Xiaoyan Sun , Jun Dai , Dongfang Zhao

Suppose x is any exactly k-sparse vector in R^n. We present a class of sparse matrices A, and a corresponding algorithm that we call SHO-FA (for Short and Fast) that, with high probability over A, can reconstruct x from Ax. The SHO-FA…

Information Theory · Computer Science 2012-11-16 Mayank Bakshi , Sidharth Jaggi , Sheng Cai , Minghua Chen

Modern microarchitectures incorporate optimization techniques such as speculative loads and store forwarding to improve the memory bottleneck. The processor executes the load speculatively before the stores, and forwards the data of a…

Cryptography and Security · Computer Science 2019-06-04 Saad Islam , Ahmad Moghimi , Ida Bruhns , Moritz Krebbel , Berk Gulmezoglu , Thomas Eisenbarth , Berk Sunar

In this paper, we propose a learning-based supervised discrete hashing method. Binary hashing is widely used for large-scale image retrieval as well as video and document searches because the compact representation of binary code is…

Computer Vision and Pattern Recognition · Computer Science 2016-12-01 Gou Koutaki , Keiichiro Shirai , Mitsuru Ambai

Hardware security vulnerabilities in computing systems compromise the security defenses of not only the hardware but also the software running on it. Recent research has shown that hardware fuzzing is a promising technique to efficiently…

Cryptography and Security · Computer Science 2023-08-22 Chen Chen , Vasudev Gohil , Rahul Kande , Ahmad-Reza Sadeghi , Jeyavijayan Rajendran

With huge design spaces for unique chemical and mechanical properties, we remove a roadblock to computational design of {high-entropy alloys} using a metaheuristic hybrid Cuckoo Search (CS) for "on-the-fly" construction of Super-Cell Random…

Materials Science · Physics 2021-01-19 Rahul Singh , Aayush Sharma , Prashant Singh , Ganesh Balasubramanian , Duane D. Johnson
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