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Recommender models are hard to evaluate, particularly under offline setting. In this paper, we provide a comprehensive and critical analysis of the data leakage issue in recommender system offline evaluation. Data leakage is caused by not…

Information Retrieval · Computer Science 2023-08-07 Yitong Ji , Aixin Sun , Jie Zhang , Chenliang Li

Accident anticipation aims to predict potential collisions in an online manner, enabling timely alerts to enhance road safety. Existing methods typically predict frame-level risk scores as indicators of hazard. However, these approaches…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Tianhao Zhao , Yiyang Zou , Zihao Mao , Peilun Xiao , Yulin Huang , Hongda Yang , Yuxuan Li , Qun Li , Guobin Wu , Yutian Lin

Gaining the trust and confidence of customers is the essence of the growth and success of financial institutions and organizations. Of late, the financial industry is significantly impacted by numerous instances of fraudulent activities.…

Machine Learning · Computer Science 2023-03-10 Yelleti Vivek , Vadlamani Ravi , Abhay Anand Mane , Laveti Ramesh Naidu

System identification in modern engineering systems faces emerging challenges from unanticipated adversarial attacks beyond existing detection mechanisms. In this work, we obtain a provably accurate estimate of the Markov parameter matrix…

Optimization and Control · Mathematics 2025-09-22 Jihun Kim , Javad Lavaei

Diffusion large language models (dLLMs) offer a promising paradigm for parallel text generation, but in practice they face an accuracy-parallelism trade-off, where increasing tokens per forward (TPF) often degrades generation quality.…

Computation and Language · Computer Science 2026-05-12 Haoyang Zhou , Li Kong , Shijie Ren , Xiting Wang , Shuang Liang , Guowei Wang , Zhenxuan Pan

Streaming Continual Learning (CL) typically converts a continuous stream into a sequence of discrete tasks through temporal partitioning. We argue that this temporal taskification step is not a neutral preprocessing choice, but a structural…

Machine Learning · Computer Science 2026-04-24 Nicolae Filat , Ahmed Hussain , Konstantinos Kalogiannis , Elena Burceanu

We present an approach for verifying systems at runtime. Our approach targets distributed systems whose components communicate with monitors over unreliable channels, where messages can be delayed, reordered, or even lost. Furthermore, our…

Logic in Computer Science · Computer Science 2019-09-26 David Basin , Felix Klaedtke , Eugen Zalinescu

For online resource allocation problems, we propose a new demand arrival model where the sequence of arrivals contains both an adversarial component and a stochastic one. Our model requires no demand forecasting; however, due to the…

Data Structures and Algorithms · Computer Science 2018-10-02 Dawsen Hwang , Patrick Jaillet , Vahideh Manshadi

Prior work has established Test-Time Training (TTT) as a general framework to further improve a trained model at test time. Before making a prediction on each test instance, the model is first trained on the same instance using a…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Renhao Wang , Yu Sun , Arnuv Tandon , Yossi Gandelsman , Xinlei Chen , Alexei A. Efros , Xiaolong Wang

An unsupervised online streaming model is considered where samples arrive in an online fashion over $T$ slots. There are $M$ classifiers, whose confusion matrices are unknown a priori. In each slot, at most one sample can be labeled by any…

Machine Learning · Computer Science 2021-12-06 R. Vaze , Santanu Rathod

Large language model (LLM) agents increasingly operate over long and recurring external contexts, like document corpora and code repositories. Across invocations, existing approaches preserve either the agent's trajectory, passive access to…

Artificial Intelligence · Computer Science 2026-05-20 Zhuohan Gu , Qizheng Zhang , Omar Khattab , Samuel Madden

Streaming video understanding requires models not only to process temporally incoming frames, but also to anticipate user intention for realistic applications such as Augmented Reality (AR) glasses. While prior streaming benchmarks evaluate…

Computer Vision and Pattern Recognition · Computer Science 2026-05-14 Daeun Lee , Subhojyoti Mukherjee , Branislav Kveton , Ryan A. Rossi , Viet Dac Lai , Seunghyun Yoon , Trung Bui , Franck Dernoncourt , Mohit Bansal

Scheming, the covert pursuit of misaligned goals by AI systems, represents a potentially catastrophic risk, yet scheming research suffers from significant limitations. In particular, scheming evaluations demonstrate behaviours that may not…

Computers and Society · Computer Science 2026-04-13 Tommy Shaffer Shane , Simon Mylius , Hamish Hobbs

With the rise of sophisticated scam websites that exploit human psychological vulnerabilities, distinguishing between legitimate and scam websites has become increasingly challenging. This paper presents ScamFerret, an innovative agent…

Cryptography and Security · Computer Science 2025-02-17 Hiroki Nakano , Takashi Koide , Daiki Chiba

Skim is a speculative execution framework for web agents that exploits the predictable structure of purpose-built websites. Today's web-agent expense is not intrinsic to the tasks but a property of how agents are composed: frontier-model…

Artificial Intelligence · Computer Science 2026-05-20 Mike Wong , Kevin Hsieh , Suman Nath , Ravi Netravali

Contextual bandit algorithms are essential for solving many real-world interactive machine learning problems. Despite multiple recent successes on statistically and computationally efficient methods, the practical behavior of these…

Machine Learning · Statistics 2021-06-08 Alberto Bietti , Alekh Agarwal , John Langford

Although recent tool-augmented benchmarks involve complex requests, evaluation remains limited to answer matching, neglecting critical trajectory aspects like efficiency, hallucination, and adaptivity. The most straightforward method for…

Artificial Intelligence · Computer Science 2026-05-26 Wonjoong Kim , Sangwu Park , Yeonjun In , Sein Kim , Dongha Lee , Chanyoung Park

Although existing 3D perception algorithms have demonstrated significant improvements in performance, their deployment on edge devices continues to encounter critical challenges due to substantial runtime latency. We propose a new benchmark…

Computer Vision and Pattern Recognition · Computer Science 2025-04-29 Jiaqi Peng , Tai Wang , Jiangmiao Pang , Yuan Shen

We present a distributed proactive caching approach that exploits user mobility information to decide where to proactively cache data to support seamless mobility, while efficiently utilizing cache storage using a congestion pricing scheme.…

Networking and Internet Architecture · Computer Science 2014-04-21 Vasilios A. Siris , Xenofon Vasilakos , George C. Polyzos

Large models (LMs) are powerful content generators, yet their open-ended nature can also introduce potential risks, such as generating harmful or biased content. Existing guardrails mostly perform post-hoc detection that may expose unsafe…

Machine Learning · Computer Science 2025-10-14 Xiaodan Li , Mengjie Wu , Yao Zhu , Yunna Lv , YueFeng Chen , Cen Chen , Jianmei Guo , Hui Xue