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In large-scale LLM pre-training systems with 100k+ GPUs, failures become the norm rather than the exception, and restart costs can dominate wall-clock training time. However, existing fault-tolerance mechanisms are largely unprepared for…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-05-29 Jin Lee , Zhonghao Chen , Xuhang He , Robert Underwood , Bogdan Nicolae , Franck Cappello , Xiaoyi Lu , Sheng Di , Zheng Zhang

This paper reviews memory technologies used in Field-Programmable Gate Arrays (FPGAs) for neuromorphic computing, a brain-inspired approach transforming artificial intelligence with improved efficiency and performance. It focuses on the…

Hardware Architecture · Computer Science 2025-02-25 Dexter Le , Baran Arig , Murat Isik , I. Can Dikmen , Teoman Karadag

We study the design of storage-efficient algorithms for emulating atomic shared memory over an asynchronous, distributed message-passing system. Our first algorithm is an atomic single-writer multi-reader algorithm based on a novel…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-06-27 Marwen Zorgui , Robert Mateescu , Filip Blagojevic , Cyril Guyot , Zhiying Wang

Retrieval-Augmented Generation (RAG) significantly mitigates the hallucinations and domain knowledge deficiency in large language models by incorporating external knowledge bases. However, the multi-module architecture of RAG introduces…

Cryptography and Security · Computer Science 2026-03-24 Yanming Mu , Hao Hu , Feiyang Li , Qiao Yuan , Jiang Wu , Zichuan Liu , Pengcheng Liu , Mei Wang , Hongwei Zhou , Yuling Liu

Retrieval-Augmented Generation (RAG) enhances Large Language Models (LLMs) by retrieving relevant memories from an external database. However, existing RAG methods typically organize all memories in a whole database, potentially limiting…

Computation and Language · Computer Science 2024-05-28 Zheng Wang , Shu Xian Teo , Jieer Ouyang , Yongjun Xu , Wei Shi

Retrieval-augmented generation (RAG) systems enhance large language models (LLMs) by integrating external knowledge bases, but this advancement introduces significant privacy risks. Existing privacy attacks on RAG systems can trigger data…

Cryptography and Security · Computer Science 2025-11-25 Yufei Chen , Yao Wang , Haibin Zhang , Tao Gu

Existing memory reclamation policies on mobile devices may be no longer valid because they have negative effects on the response time of running applications. In this paper, we propose SWAM, a new integrated memory management technique that…

Operating Systems · Computer Science 2023-06-16 Geunsik Lim , Donghyun Kang , MyungJoo Ham , Young Ik Eom

The deployment of large language models (LLMs) is often constrained by their substantial computational and memory demands. While structured pruning presents a viable approach by eliminating entire network components, existing methods suffer…

Machine Learning · Computer Science 2025-05-07 Hanyu Hu , Xiaoming Yuan

Fine-grained memory protection for C and C++ programs must track individual objects (or pointers), and store bounds information per object (pointer). Its cost is dominated by metadata updates and lookups, making efficient metadata…

Cryptography and Security · Computer Science 2019-03-05 Myoung Jin Nam , Periklis Akritidis , David J Greaves

Deep reinforcement learning (DRL) policies are vulnerable to unauthorized replication attacks, where an adversary exploits imitation learning to reproduce target policies from observed behavior. In this paper, we propose Constrained…

Machine Learning · Computer Science 2021-10-01 Nancirose Piazza , Vahid Behzadan

Automatic Mean Opinion Score (MOS) prediction is crucial to evaluate the perceptual quality of the synthetic speech. While recent approaches using pre-trained self-supervised learning (SSL) models have shown promising results, they only…

Audio and Speech Processing · Electrical Eng. & Systems 2023-09-01 Hui Wang , Shiwan Zhao , Xiguang Zheng , Yong Qin

Automatic prompt optimization is a promising approach for adapting large language models (LLMs) to downstream tasks, yet existing methods typically search for a specific prompt specialized to a fixed task. This paradigm limits…

Computation and Language · Computer Science 2026-03-24 Guanbao Liang , Yuanchen Bei , Sheng Zhou , Yuheng Qin , Huan Zhou , Bingxin Jia , Bin Li , Jiajun Bu

Standard Retrieval Augmented Generation (RAG) is poorly matched to agent memory. Unlike large heterogeneous corpora, agent memory forms a bounded and coherent interaction stream in which many spans are highly correlated or near duplicates.…

Computation and Language · Computer Science 2026-05-13 Zhanghao Hu , Qinglin Zhu , Runcong Zhao , Di Liang , Hanqi Yan , Yulan He , Lin Gui

We study the classic subgraph enumeration problem under distributed settings. Existing solutions either suffer from severe memory crisis or rely on large indexes, which makes them impractical for very large graphs. Most of them follow a…

Databases · Computer Science 2019-01-24 Xuguang Ren , Junhu Wang , Wook-Shin Han , Jeffrey Xu Yu

Retrieval-augmented generation (RAG) systems have been shown to be effective in addressing many of the drawbacks of relying solely on the parametric memory of large language models. Recent work has demonstrated that RAG systems can be…

Retrieval-augmented generation (RAG) techniques leverage the in-context learning capabilities of large language models (LLMs) to produce more accurate and relevant responses. Originating from the simple 'retrieve-then-read' approach, the…

Computation and Language · Computer Science 2024-07-16 Yunxiao Shi , Xing Zi , Zijing Shi , Haimin Zhang , Qiang Wu , Min Xu

Persistent Memory (PM) technologies enable program recovery to a consistent state in a case of failure. To ensure this crash-consistent behavior, programs need to enforce persist ordering by employing mechanisms, such as logging and…

Computational Engineering, Finance, and Science · Computer Science 2023-04-03 Yasas Seneviratne , Korakit Seemakhupt , Sihang Liu , Samira Khan

Continual learning methods used to force neural networks to process sequential tasks in isolation, preventing them from leveraging useful inter-task relationships and causing them to repeatedly relearn similar features or overly…

Machine Learning · Computer Science 2025-11-14 Hyung-Jun Moon , Sung-Bae Cho

The demand for lightweight models in image classification tasks under resource-constrained environments necessitates a balance between computational efficiency and robust feature representation. Traditional attention mechanisms, despite…

Machine Learning · Computer Science 2025-04-21 Zhenkai Qin , Feng Zhu , Huan Zeng , Xunyi Nong

Retrieval-augmented generation (RAG) is susceptible to retrieval corruption attacks, where malicious passages injected into retrieval results can lead to inaccurate model responses. We propose RobustRAG, the first defense framework with…

Machine Learning · Computer Science 2026-04-02 Chong Xiang , Tong Wu , Zexuan Zhong , David Wagner , Danqi Chen , Prateek Mittal