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Offline reinforcement learning (RL) is challenged by the distributional shift problem. To address this problem, existing works mainly focus on designing sophisticated policy constraints between the learned policy and the behavior policy.…

Machine Learning · Computer Science 2025-01-09 Yang Yue , Bingyi Kang , Xiao Ma , Qisen Yang , Gao Huang , Shiji Song , Shuicheng Yan

Effective caching is crucial for the performance of modern-day computing systems. A key optimization problem arising in caching -- which item to evict to make room for a new item -- cannot be optimally solved without knowing the future.…

Machine Learning · Computer Science 2021-06-29 Jakub Chłędowski , Adam Polak , Bartosz Szabucki , Konrad Zolna

Mobile edge caching can effectively reduce service delay but may introduce information staleness, calling for timely content refreshing. However, content refreshing consumes additional transmission resources and may degrade the delay…

Networking and Internet Architecture · Computer Science 2020-02-17 Shan Zhang , Liudi Wang , Hongbin Luo , Xiao Ma , Sheng Zhou

Oblivious RAM (ORAM) is a well-researched primitive to hide the memory access pattern of a RAM computation; it has a variety of applications in trusted computing, outsourced storage, and multiparty computation. In this paper, we study the…

Data Structures and Algorithms · Computer Science 2024-12-16 Thore Thießen , Jan Vahrenhold

CPU scheduling is the reason behind the performance of multiprocessing and in time-shared operating systems. Different scheduling criteria are used to evaluate Central Processing Unit Scheduling algorithms which are based on different…

Operating Systems · Computer Science 2022-05-17 Raghav Dalmia , Aryaman Sinha , Ruchi Verma , P. K. Gupta

Mobile Augmented Reality (MAR) applications face performance challenges due to their high computational demands and need for low-latency responses. Traditional approaches like on-device storage or reactive data fetching from the cloud often…

Emerging Technologies · Computer Science 2025-04-25 Nikhil Sreekumar , Abhishek Chandra , Jon Weissman

Offline policy optimization could have a large impact on many real-world decision-making problems, as online learning may be infeasible in many applications. Importance sampling and its variants are a commonly used type of estimator in…

Machine Learning · Computer Science 2022-07-05 Yao Liu , Yannis Flet-Berliac , Emma Brunskill

Various risk-limiting audit (RLA) methods have been developed for instant-runoff voting (IRV) elections. A recent method, AWAIRE, is the first efficient approach that can take advantage of but does not require cast vote records (CVRs).…

Computers and Society · Computer Science 2024-12-03 Alexander Ek , Philip B. Stark , Peter J. Stuckey , Damjan Vukcevic

This paper presents AUGURY, an application for the analysis of monitoring data from computers, servers or cloud infrastructures. The analysis is based on the extraction of patterns and trends from historical data, using elements of…

Distributed, Parallel, and Cluster Computing · Computer Science 2017-02-28 Nicolas Gutierrez , Manuela Wiesinger-Widi

Consider a stream of status updates generated by a source, where each update is of one of two types: high priority or ordinary (low priority). These updates are to be transmitted through a network to a monitor. However, the transmission…

Information Theory · Computer Science 2019-10-16 Elie Najm , Rajai Nasser , Emre Telatar

We consider a system consisting of a library of time-varying files, a server that at all times observes the current version of all files, and a cache that at the beginning stores the current versions of all files but afterwards has to…

Information Theory · Computer Science 2019-09-20 Haoyue Tang , Philippe Ciblat , Jintao Wang , Michele Wigger , Roy Yates

Caches in Content-Centric Networks (CCN) are increasingly adopting flash memory based storage. The current flash cache technology stores all files with the largest possible expiry date, i.e. the files are written in the memory so that they…

Networking and Internet Architecture · Computer Science 2016-06-24 Samta Shukla , Alhussein A. Abouzeid

Stream media content caching is a key enabling technology to promote the value chain of future urban vehicular networks. Nevertheless, the high mobility of vehicles, intermittency of information transmissions, high dynamics of user…

Information Theory · Computer Science 2023-05-15 Biqian Feng , Chenyuan Feng , Daquan Feng , Yongpeng Wu , Xiang-Gen Xia

During a disaster scenario, situational awareness information, such as location, physical status and images of the surrounding area, is essential for minimizing loss of life, injury, and property damage. Today's handhelds make it easy for…

Networking and Internet Architecture · Computer Science 2012-06-11 Udi Weinsberg , Athula Balachandran , Nina Taft , Gianluca Iannaccone , Vyas Sekar , Srinivasan Seshan

In real-time systems, priorities assigned to real-time tasks determine the order of task executions, by relying on an underlying task scheduling policy. Assigning optimal priority values to tasks is critical to allow the tasks to complete…

Software Engineering · Computer Science 2023-08-14 Jaekwon Lee , Seung Yeob Shin , Shiva Nejati , Lionel C. Briand

Virtual Reality (VR) applications require high data rate for a high-quality immersive experience, in addition to low latency to avoid dizziness and motion sickness. One of the key wireless VR challenges is providing seamless connectivity…

Networking and Internet Architecture · Computer Science 2021-10-07 Mostafa Abdelrahman , Mohammed Elbamby , Vilho Räisänen

In autonomous navigation, a planning system reasons about other agents to plan a safe and plausible trajectory. Before planning starts, agents are typically processed with computationally intensive models for recognition, tracking, motion…

Robotics · Computer Science 2019-09-20 Khaled S. Refaat , Kai Ding , Natalia Ponomareva , Stéphane Ross

Extensive research on social media usage during emergencies has shown its value to provide life-saving information, if a mechanism is in place to filter and prioritize messages. Existing ranking systems can provide a baseline for selecting…

Social and Information Networks · Computer Science 2018-09-25 Hemant Purohit , Carlos Castillo , Muhammad Imran , Rahul Pandey

Joint caching and recommendation has been recently proposed as a new paradigm for increasing the efficiency of mobile edge caching. Early findings demonstrate significant gains for the network performance. However, previous works evaluated…

Networking and Internet Architecture · Computer Science 2020-10-08 Savvas Kastanakis , Pavlos Sermpezis , Vasileios Kotronis , Daniel Menasché , Thrasyvoulos Spyropoulos

Wireless communications for status update are becoming increasingly important, especially for machine-type control applications. Existing work has been mainly focused on Age of Information (AoI) optimizations. In this paper, a status-aware…

Information Theory · Computer Science 2020-02-05 Zhiyuan Jiang , Zixu Cao , Siyu Fu , Fei Peng , Shan Cao , Shunqing Zhang , Shugong Xu