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Deep representation learning has become one of the most widely adopted approaches for visual search, recommendation, and identification. Retrieval of such representations from a large database is however computationally challenging.…

机器学习 · 计算机科学 2020-04-14 Biswajit Paria , Chih-Kuan Yeh , Ian E. H. Yen , Ning Xu , Pradeep Ravikumar , Barnabás Póczos

We propose an explainable, privacy-preserving dataset distillation framework for collaborative financial fraud detection. A trained random forest is converted into transparent, axis-aligned rule regions (leaf hyperrectangles), and synthetic…

机器学习 · 计算机科学 2025-12-29 Yiming Qian , Thorsten Neumann , Xueyining Huang , David Hardoon , Fei Gao , Yong Liu , Siow Mong Rick Goh

Group-relative RL training (GRPO) samples a small group of parallel rollouts for every training prompt and uses their within-group reward spread to compute per-trajectory advantages. In agentic environments each rollout is a long multi-turn…

机器学习 · 计算机科学 2026-05-08 Zhiyuan Zhai , Xin Wang

Secure federated learning (FL) preserves data privacy during distributed model training. However, deploying such frameworks across heterogeneous devices results in performance bottlenecks, due to straggler clients with limited computational…

机器学习 · 计算机科学 2025-10-21 Anthony DiMaggio , Raghav Sharma , Gururaj Saileshwar

Research in quantitative finance has demonstrated that reinforcement learning (RL) methods have delivered promising outcomes in the context of hedging financial portfolios. For example, hedging a portfolio of European options using RL…

计算工程、金融与科学 · 计算机科学 2024-07-16 Anil Sharma , Freeman Chen , Jaesun Noh , Julio DeJesus , Mario Schlener

The increasing computational demands of modern neural networks present deployment challenges on resource-constrained devices. Network pruning offers a solution to reduce model size and computational cost while maintaining performance.…

机器学习 · 计算机科学 2024-03-13 Xiang Meng , Wenyu Chen , Riade Benbaki , Rahul Mazumder

Federated learning (FL), as a powerful learning paradigm, trains a shared model by aggregating model updates from distributed clients. However, the decoupling of model learning from local data makes FL highly vulnerable to backdoor attacks,…

密码学与安全 · 计算机科学 2025-03-07 Xiyue Zhang , Xiaoyong Xue , Xiaoning Du , Xiaofei Xie , Yang Liu , Meng Sun

This paper introduces a new algorithm for the fundamental problem of generating a random integer from a discrete probability distribution using a source of independent and unbiased random coin flips. We prove that this algorithm, which we…

统计计算 · 统计学 2020-07-03 Feras A. Saad , Cameron E. Freer , Martin C. Rinard , Vikash K. Mansinghka

False discovery rate (FDR) is a common way to control the number of false discoveries in multiple testing. There are a number of approaches available for controlling FDR. However, for functional test statistics, which are discretized into…

统计方法学 · 统计学 2024-12-03 Tomáš Mrkvička , Mari Myllymäki

As Non-Fungible Tokens (NFTs) continue to grow in popularity, NFT users have become targets of phishing attacks by cybercriminals, called \textit{NFT drainers}. Over the last year, \$100 million worth of NFTs were stolen by drainers, and…

密码学与安全 · 计算机科学 2023-11-20 Hanna Kim , Jian Cui , Eugene Jang , Chanhee Lee , Yongjae Lee , Jin-Woo Chung , Seungwon Shin

Money launderers take advantage of limitations in existing detection approaches by hiding their financial footprints in a deceitful manner. They manage this by replicating transaction patterns that the monitoring systems cannot easily…

机器学习 · 计算机科学 2026-04-15 Haseeb Tariq , Alen Kaja , Marwan Hassani

The majority of fault-tolerant distributed algorithms are designed assuming a nominal corruption model, in which at most a fraction $f_n$ of parties can be corrupted by the adversary. However, due to the infamous Sybil attack, nominal…

分布式、并行与集群计算 · 计算机科学 2024-11-05 Andrei Tonkikh , Luciano Freitas

Rugsafe introduces a comprehensive protocol aimed at mitigating the risks of rug pulls in the cryptocurrency ecosystem. By utilizing cryptographic security measures and economic incentives, the protocol provides a secure multichain system…

密码学与安全 · 计算机科学 2025-07-10 Jovonni L. Pharr , Jahanzeb M. Hussain

A fundamental problem when adding column pivoting to the Householder QR factorization is that only about half of the computation can be cast in terms of high performing matrix-matrix multiplications, which greatly limits the benefits that…

The distributed recursion (DR) algorithm is an effective method for solving the pooling problem that arises in many applications. It is based on the well-known P-formulation of the pooling problem, which involves the flow and quality…

最优化与控制 · 数学 2024-11-15 Wei-Yang Zhang , Feng-Lian Dong , Zhi-Wei Wei , Yan-Ru Wang , Ze-Jin Xu , Wei-Kun Chen , Yu-Hong Dai

Financial fraud increasingly exploits institutional boundaries: laundering networks distribute transactions across multiple banks because no single institution can observe the full pattern. Federated Learning (FL) enables collaborative…

密码学与安全 · 计算机科学 2026-05-19 Prajwal Panth , Nishant Nigam

The UK anti-fraud charity Fraud Advisory Panel (FAP) in their review of 2016 estimates business costs of fraud at 144 billion, and its individual counterpart at 9.7 billion. Banking, insurance, manufacturing, and government are the most…

机器学习 · 计算机科学 2022-05-11 Tuan Tran

Constant product markets with concentrated liquidity (CL) are the most popular type of automated market makers. In this paper, we characterise the continuous-time wealth dynamics of strategic LPs who dynamically adjust their range of…

数理金融 · 定量金融 2024-06-14 Álvaro Cartea , Fayçal Drissi , Marcello Monga

Split manufacturing is a promising technique to defend against fab-based malicious activities such as IP piracy, overbuilding, and insertion of hardware Trojans. However, a network flow-based proximity attack, proposed by Wang et al.…

密码学与安全 · 计算机科学 2017-12-21 Abhrajit Sengupta , Satwik Patnaik , Johann Knechtel , Mohammed Ashraf , Siddharth Garg , Ozgur Sinanoglu

A Physical unclonable functions (PUF), alike a fingerprint, exploits manufacturing randomness to endow each physical item with a unique identifier. One primary PUF application is the secure derivation of volatile cryptographic keys using a…

密码学与安全 · 计算机科学 2018-11-21 Yansong Gao , Yang Su , Lei Xu , Damith C. Ranasinghe