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A source code difference (diff) indicates changes made by comparing new and old source codes, and it can be utilized in code reviews to help developers understand the changes made to the code. Although many diff generation methods have been…

软件工程 · 计算机科学 2024-09-27 Tsukasa Yagi , Shinpei Hayashi

Change-point analysis is a flexible and computationally tractable tool for the analysis of times series data from systems that transition between discrete states and whose observables are corrupted by noise. The change-point algorithm is…

数据分析、统计与概率 · 物理学 2015-05-22 Paul A. Wiggins , Colin H. LaMont

In this paper, we consider a discrete-time information-update system, where a service provider can proactively retrieve information from the information source to update its data and users query the data at the service provider. One example…

信息论 · 计算机科学 2023-01-11 Zhongdong Liu , Bin Li , Zizhan Zheng , Y. Thomas Hou , Bo Ji

Distributed stream processing systems rely on the dataflow model to define and execute streaming jobs, organizing computations as Directed Acyclic Graphs (DAGs) of operators. Adjusting the parallelism of these operators is crucial to…

分布式、并行与集群计算 · 计算机科学 2025-07-08 Yuxing Han , Lixiang Chen , Haoyu Wang , Zhanghao Chen , Yifan Zhang , Chengcheng Yang , Kongzhang Hao , Zhengyi Yang

This paper investigates an information update system in which a mobile device monitors a physical process and sends status updates to an access point (AP). A fundamental trade-off arises between the timeliness of the information maintained…

网络与互联网体系结构 · 计算机科学 2026-01-09 Yu-Pin Hsu , Yi-Hsuan Tseng

A streaming algorithm is adversarially robust if it is guaranteed to perform correctly even in the presence of an adaptive adversary. Recently, several sophisticated frameworks for robustification of classical streaming algorithms have been…

数据结构与算法 · 计算机科学 2021-09-09 Omri Ben-Eliezer , Talya Eden , Krzysztof Onak

This paper is motivated by emerging edge computing applications in which generated data are pre-processed at the source and then transmitted to an edge server. In such a scenario, there is typically a tradeoff between the amount of…

信息论 · 计算机科学 2019-07-02 Peng Zou , Omur Ozel , Suresh Subramaniam

In many scenarios, control information dissemination becomes a bottleneck, which limits the scalability and the performance of wireless networks. Such a problem is especially crucial in mobile ad hoc networks, dense networks, networks of…

网络与互联网体系结构 · 计算机科学 2020-08-06 Andrey Belogaev , Evgeny Khorov , Artem Krasilon , Andrey Lyakhov

sequential updating scheme (SUS) for the belief propagation algorithm is proposed, and is compared with the parallel (regular) updating scheme (PUS). Simulation results on various codes indicate that the number of iterations of the belief…

统计力学 · 物理学 2015-06-24 H. Kfir , I. Kanter

Discovering frequent episodes over event sequences is an important data mining task. In many applications, events constituting the data sequence arrive as a stream, at furious rates, and recent trends (or frequent episodes) can change and…

机器学习 · 计算机科学 2012-05-22 Debprakash Patnaik , Naren Ramakrishnan , Srivatsan Laxman , Badrish Chandramouli

Efficient consistency maintenance of incomplete and dynamic real-life databases is a quality label for further data analysis. In prior work, we tackled the generic problem of database updating in the presence of tuple generating constraints…

数据库 · 计算机科学 2024-05-16 Jacques Chabin , Mirian Halfeld Ferrari , Nicolas Hiot , Dominique Laurent

Future architectures designed to deliver exascale performance motivate the need for novel algorithmic changes in order to fully exploit their capabilities. In this paper, the performance of several numerical algorithms, characterised by…

数据结构与算法 · 计算机科学 2016-10-31 Satya P. Jammy , Christian T. Jacobs , Neil D. Sandham

The problem of sequentially detecting an abrupt change in a sequence of independent and identically distributed (IID) random variables is addressed. Whereas previous approaches assume a known probability density function (PDF) at the start…

统计理论 · 数学 2017-12-11 James Falt , Steven D. Blostein

The aim of this paper is to analyse the gain of the update algorithm associated to the recently proposed D-iteration: the D-iteration is a fluid diffusion based new iterative method. It exploits a simple intuitive decomposition of the…

离散数学 · 计算机科学 2012-02-29 Dohy Hong

Graph pattern matching algorithms to handle million-scale dynamic graphs are widely used in many applications such as social network analytics and suspicious transaction detections from financial networks. On the other hand, the computation…

数据库 · 计算机科学 2019-07-10 Hiroki Kanezashi , Toyotaro Suzumura , Dario Garcia-Gasulla , Min-hwan Oh , Satoshi Matsuoka

We consider an Internet of Things (IoT) system in which a sensor observes a phenomena of interest with exponentially distributed intervals and delivers the updates to a monitor with the First-come-First-served (FCFS) policy. At the monitor,…

信息论 · 计算机科学 2020-02-27 Zhiwei Bao , Yunquan Dong , Zhengchuan Chen , Pingyi Fan , Khaled B. Letaief

In this paper, we consider a status updating system where the transmitter sends status updates of the signal it monitors to the destination through a rate-limited link. We consider the scenario where the status of the monitored signal only…

信息论 · 计算机科学 2020-03-03 Chenghao Deng , Jing Yang , Changyong Pan

Change point detection plays a fundamental role in many real-world applications, where the goal is to analyze and monitor the behaviour of a data stream. In this paper, we study change detection in binary streams. To this end, we use a…

机器学习 · 计算机科学 2023-01-24 Nikolaj Tatti

Out-of-distribution (OOD) detection is essential for ensuring the robustness of machine learning models by identifying samples that deviate from the training distribution. While traditional OOD detection has primarily focused on…

计算机视觉与模式识别 · 计算机科学 2024-11-14 Shawn Li , Huixian Gong , Hao Dong , Tiankai Yang , Zhengzhong Tu , Yue Zhao

In this paper, we study the problem of publishing a stream of real-valued data satisfying differential privacy (DP). One major challenge is that the maximal possible value can be quite large; thus it is necessary to estimate a threshold so…

密码学与安全 · 计算机科学 2023-12-11 Tianhao Wang , Joann Qiongna Chen , Zhikun Zhang , Dong Su , Yueqiang Cheng , Zhou Li , Ninghui Li , Somesh Jha