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We consider caching in cellular networks in which each base station is equipped with a cache that can store a limited number of files. The popularity of the files is known and the goal is to place files in the caches such that the…

网络与互联网体系结构 · 计算机科学 2017-11-27 Konstantin Avrachenkov , Jasper Goseling , Berksan Serbetci

Efficient edge caching reduces latency and alleviates backhaul congestion in modern networks. Traditional caching policies, such as Least Recently Used (LRU) and Least Frequently Used (LFU), perform well under specific request patterns. LRU…

网络与互联网体系结构 · 计算机科学 2025-12-10 Agrim Bari , Gustavo de Veciana , Yuqi Zhou

Replicating or caching popular content in memories distributed across the network is a technique to reduce peak network loads. Conventionally, the performance gain of caching was thought to result from making part of the requested data…

信息论 · 计算机科学 2015-01-13 Ajaykrishnan N. , Navya S. Prem , Vinod M. Prabhakaran , Rahul Vaze

Adaptive Replacement Cache (ARC) and CLOCK with Adaptive Replacement (CAR) are state-of-the- art "adaptive" cache replacement algorithms invented to improve on the shortcomings of classical cache replacement policies such as LRU, LFU and…

数据结构与算法 · 计算机科学 2017-04-25 Mario E. Consuegra , Wendy A. Martinez , Giri Narasimhan , Raju Rangaswami , Leo Shao , Giuseppe Vietri

Minimizing total link cost in Information-Centric Network (ICN) by optimizing content placement is challenging in both effectiveness and practicality. To attain better performance, upstream link cost caused by a cache miss should be…

网络与互联网体系结构 · 计算机科学 2018-11-15 Lemei Huang , Yu Guan , Xinggong Zhang , Zongming Guo

Caching systems have long been crucial for improving the performance of a wide variety of network and web based online applications. In such systems, end-to-end application performance heavily depends on the fraction of objects transferred…

性能 · 计算机科学 2021-06-14 Nitish K. Panigrahy , Philippe Nain , Giovanni Neglia , Don Towsley

Retrieval-augmented generation (RAG) improves the reliability of large language model (LLM) answers by integrating external knowledge. However, RAG increases the end-to-end inference time since looking for relevant documents from large…

To cope with the ongoing changing demands of the internet, 'in-network caching' has been presented as an application solution for two decades. With the advent of information-centric network (ICN) architecture, 'in-network caching' becomes a…

网络与互联网体系结构 · 计算机科学 2017-06-28 Muhammad Bilal , Shin-Gak Kang

In any caching system, the admission and eviction policies determine which contents are added and removed from a cache when a miss occurs. Usually, these policies are devised so as to mitigate staleness and increase the hit probability.…

网络与互联网体系结构 · 计算机科学 2016-11-15 Mostafa Dehghan , Laurent Massoulie , Don Towsley , Daniel Menasche , Y. C. Tay

In evaluating an algorithm, worst-case analysis can be overly pessimistic. Average-case analysis can be overly optimistic. An intermediate approach is to show that an algorithm does well on a broad class of input distributions. Koutsoupias…

数据结构与算法 · 计算机科学 2015-06-02 Neal E. Young

Commonly used caching policies, such as LRU (Least Recently Used) or LFU (Least Frequently Used), exhibit optimal performance only under specific traffic patterns. Even advanced machine learning-based methods, which detect patterns in…

机器学习 · 计算机科学 2024-06-18 Damiano Carra , Giovanni Neglia

Memory caches are being aggressively used in today's data-parallel systems such as Spark, Tez, and Piccolo. However, prevalent systems employ rather simple cache management policies--notably the Least Recently Used (LRU) policy--that are…

分布式、并行与集群计算 · 计算机科学 2017-03-27 Yinghao Yu , Wei Wang , Jun Zhang , Khaled Ben Letaief

In this work, we propose MUSTACHE, a new page cache replacement algorithm whose logic is learned from observed memory access requests rather than fixed like existing policies. We formulate the page request prediction problem as a…

操作系统 · 计算机科学 2022-11-07 Gabriele Tolomei , Lorenzo Takanen , Fabio Pinelli

Caching is crucial for system performance, but the delayed hit phenomenon, where requests queue during lengthy fetches after a cache miss, significantly degrades user-perceived latency in modern high-throughput systems. While prior works…

网络与互联网体系结构 · 计算机科学 2025-05-22 Bowen Jiang , Chaofan Ma

Caching popular contents at the edge of the network can positively impact the performance and future sustainability of wireless networks in several ways, e.g., end-to-end access delay reduction and peak rate increase. In this paper, we aim…

信息论 · 计算机科学 2017-03-21 Marco Maso , Italo Atzeni , Imène Ghamnia , Ejder Baştuğ , Mérouane Debbah

For a realistic traffic mix, we evaluate the hit rates attained in a two-layer cache hierarchy designed to reduce Internet bandwidth requirements. The model identifies four main types of content, web, file sharing, user generated content…

网络与互联网体系结构 · 计算机科学 2012-02-02 Christine Fricker , Philippe Robert , James Roberts , Nada Sbihi

The size of computer networks, along with their bandwidths, is growing exponentially. To support these large, high-speed networks, it is neccessary to be able to forward packets in a few microseconds. One part of the forwarding operation…

网络与互联网体系结构 · 计算机科学 2007-05-23 R. Jain

While the cost of computation is an easy to understand local property, the cost of data movement on cached architectures depends on global state, does not compose, and is hard to predict. As a result, programmers often fail to consider the…

性能 · 计算机科学 2020-01-07 Tobias Gysi , Tobias Grosser , Laurin Brandner , Torsten Hoefler

Mobile edge caching enables content delivery within the radio access network, which effectively alleviates the backhaul burden and reduces response time. To fully exploit edge storage resources, the most popular contents should be…

网络与互联网体系结构 · 计算机科学 2018-09-05 Peng Yang , Ning Zhang , Shan Zhang , Li Yu , Junshan Zhang , Xuemin Shen

We consider the well known \emph{Least Recently Used} (LRU) replacement algorithm and analyze it under the independent reference model and generalized power-law demand. For this extensive family of demand distributions we derive a…

数据结构与算法 · 计算机科学 2007-05-23 Nikolaos Laoutaris