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Virtually indexed and virtually tagged (VIVT) caches are an attractive option for micro-processor level-1 caches, because of their fast response time and because they are cheaper to implement than more complex caches such as…

硬件体系结构 · 计算机科学 2021-08-03 Madhav P. Desai , Aniket Deshmukh

This paper develops a new algorithm to improve the security of RC4. Given that RC4 cipher is widely used in the wireless communication and has some weaknesses in the security of RC4 cipher, our idea is based on the combination of the RC4…

密码学与安全 · 计算机科学 2011-11-28 Seifedine Kadry , Mohamad Smaili

The paper develops a novel approach to stream cipher design: Both the state update function and the output function of the corresponding pseudorandom generators are compositions of arithmetic and bitwise logical operations, which are…

密码学与安全 · 计算机科学 2011-11-15 Vladimir Anashin

Fast detection of heavy flows (e.g., heavy hitters and heavy changers) in massive network traffic is challenging due to the stringent requirements of fast packet processing and limited resource availability. Invertible sketches are summary…

网络与互联网体系结构 · 计算机科学 2020-07-23 Lu Tang , Qun Huang , Patrick P. C. Lee

The core challenge for streaming video generation is maintaining the content consistency in long context, which poses high requirement for the memory design. Most existing solutions maintain the memory by compressing historical frames with…

计算机视觉与模式识别 · 计算机科学 2025-12-17 Sihui Ji , Xi Chen , Shuai Yang , Xin Tao , Pengfei Wan , Hengshuang Zhao

Modern sparse language models typically achieve sparsity through Mixture-of-Experts (MoE) layers, which dynamically route tokens to dense MLP "experts." However, dynamic hard routing has a number of drawbacks, such as potentially poor…

机器学习 · 计算机科学 2026-02-02 Albert Tseng , Christopher De Sa

Recent advances in large multimodal models have leveraged image-based tools with reinforcement learning to tackle visual problems. However, existing open-source approaches often exhibit monotonous reasoning patterns and allow only a limited…

计算机视觉与模式识别 · 计算机科学 2025-09-10 Xin Lai , Junyi Li , Wei Li , Tao Liu , Tianjian Li , Hengshuang Zhao

Due to the strong correlation between adjacent pixels, most image encryption schemes perform multiple rounds of confusion and diffusion to protect the image against attacks. Such operations, however, are time-consuming, cannot meet the…

密码学与安全 · 计算机科学 2024-08-28 Dong Jiang , Zhen Yuan , Wen-xin Li , Liang-liang Lu

Long-form video question answering (VQA) overwhelms current vision-language models (VLMs) because attention and key-value (KV) caches grow with runtime, forcing either expensive inference or near-sighted sliding windows. We introduce…

计算机视觉与模式识别 · 计算机科学 2025-11-18 Shrenik Patel , Daivik Patel

We consider the problem of tracking with small relative error an integer function $f(n)$ defined by a distributed update stream $f'(n)$. Existing streaming algorithms with worst-case guarantees for this problem assume $f(n)$ to be monotone;…

数据结构与算法 · 计算机科学 2015-02-26 David Felber , Rafail Ostrovsky

This paper is not motivated to seek innovation within the attention mechanism. Instead, it focuses on overcoming the existing trade-offs between accuracy and efficiency within the context of point cloud processing, leveraging the power of…

计算机视觉与模式识别 · 计算机科学 2024-03-26 Xiaoyang Wu , Li Jiang , Peng-Shuai Wang , Zhijian Liu , Xihui Liu , Yu Qiao , Wanli Ouyang , Tong He , Hengshuang Zhao

Autoregressive models (ARMs) are hindered by slow sequential inference. While masked diffusion models (MDMs) offer a parallel alternative, they suffer from critical drawbacks: high computational overhead from precluding Key-Value (KV)…

计算与语言 · 计算机科学 2026-03-06 Jia-Nan Li , Jian Guan , Wei Wu , Chongxuan Li

PCM is a popular backing memory for DRAM main memory in tiered memory systems. PCM has asymmetric access energy; writes dominate reads. MLC asymmetry can vary by an order of magnitude. Many schemes have been developed to take advantage of…

硬件体系结构 · 计算机科学 2021-12-06 Stephen Longofono , Seyed Mohammad Seyedzadeh , Alex K. Jones

Streaming video understanding requires models to robustly encode, store, and retrieve information from a continuous video stream to support accurate video question answering (VQA). Existing state-of-the-art approaches rely on key-value…

计算机视觉与模式识别 · 计算机科学 2026-02-23 Vatsal Agarwal , Saksham Suri , Matthew Gwilliam , Pulkit Kumar , Abhinav Shrivastava

In long, multi-page industrial documents, retrieval-augmented generation (RAG) depends heavily on whether chunk boundaries follow the document's true structure. Existing text-centric chunkers and generative hierarchy parsers often miss…

信息检索 · 计算机科学 2026-05-20 Joongmin Shin , Jeongbae Park , Jaehyung Seo , Heuiseok Lim

Existing multimodal large language models for long-video understanding predominantly rely on uniform sampling and single-turn inference, limiting their ability to identify sparse yet critical evidence amid extensive redundancy. We introduce…

Recent research has sought to accelerate cryptographic hash functions as they are at the core of modern cryptography. Traditional designs, however, suffer from the von Neumann bottleneck that originates from the separation of processing and…

硬件体系结构 · 计算机科学 2022-06-03 Batel Oved , Orian Leitersdorf , Ronny Ronen , Shahar Kvatinsky

In this paper, we introduce a new embedding model called M3-Embedding, which is distinguished for its versatility in \textit{Multi-Linguality}, \textit{Multi-Functionality}, and \textit{Multi-Granularity}. It provides a uniform support for…

计算与语言 · 计算机科学 2025-12-15 Jianlv Chen , Shitao Xiao , Peitian Zhang , Kun Luo , Defu Lian , Zheng Liu

Large Language Models (LLMs) increasingly require processing long text sequences, but GPU memory limitations force difficult trade-offs between memory capacity and bandwidth. While HBM-based acceleration offers high bandwidth, its capacity…

硬件体系结构 · 计算机科学 2025-04-25 Qingyuan Liu , Liyan Chen , Yanning Yang , Haocheng Wang , Dong Du , Zhigang Mao , Naifeng Jing , Yubin Xia , Haibo Chen

This paper studies the problem of reasoning about flow security properties in virtualised computing networks with mobility from perspective of formal language. We propose a distributed process algebra CSP_{4v} with security labelled…

密码学与安全 · 计算机科学 2020-04-14 Chunyan Mu