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Current graph systems can easily process billions of data, however when increased to exceed hundred billions, the performance decreases dramatically, time series data always be very huge, consequently computation on time series graphs still…

分布式、并行与集群计算 · 计算机科学 2023-10-25 Derong Tang

Graph embedding techniques have attracted growing interest since they convert the graph data into continuous and low-dimensional space. Effective graph analytic provides users a deeper understanding of what is behind the data and thus can…

机器学习 · 计算机科学 2022-01-21 Azita Nouri , Philip E. Davis , Pradeep Subedi , Manish Parashar

This article investigates the performance of grid computing systems whose interconnections are given by random and scale-free complex network models. Regular networks, which are common in parallel computing architectures, are also used as a…

统计力学 · 物理学 2009-11-10 Luciano da Fontoura Costa , Gonzalo Travieso , Carlos Antonio Ruggiero

With the high bunch-crossing and interaction rates and potentially large event sizes the experiments at the LHC challenge data acquisition and trigger systems. Within the ATLAS experiment, a multi-level trigger system based on hardware and…

高能物理 - 实验 · 物理学 2017-12-22 Thomas Schoerner-Sadenius

Wider adoption of the Grid concept has led to an increasing amount of federated computational, storage and visualisation resources being available to scientists and researchers. Distributed and heterogeneous nature of these resources…

分布式、并行与集群计算 · 计算机科学 2007-11-05 Aleksandar Lazarevic , Lionel Sacks , Ognjen Prnjat

Querying very large RDF data sets in an efficient manner requires a sophisticated distribution strategy. Several innovative solutions have recently been proposed for optimizing data distribution with predefined query workloads. This paper…

数据库 · 计算机科学 2015-07-10 Olivier Curé , Hubert Naacke , Mohamed-Amine Baazizi , Bernd Amann

We propose a new framework that focuses on on-site entities in the digital twin, a pairing of the real world and digital space. Characteristics include active sensing to generate event logs, spatial and temporal partitioning of complex…

应用统计 · 统计学 2025-06-09 Shintaro Yoshizawa , Takayuki Kanai , Masahiro Kagi

While many EDA tasks already involve graph-based data, existing LLMs in EDA primarily either represent graphs as sequential text, or simply ignore graph-structured data that might be beneficial like dataflow graphs of RTL code. Recent…

机器学习 · 计算机科学 2025-04-08 Wei Li , Yang Zou , Christopher Ellis , Ruben Purdy , Shawn Blanton , José M. F. Moura

Large-scale distributed computing infrastructures such as the Worldwide LHC Computing Grid (WLCG) require comprehensive simulation tools for evaluating performance, testing new algorithms, and optimizing resource allocation strategies.…

Graph processing at scale presents many challenges, including the irregular structure of graphs, the latency-bound nature of graph algorithms, and the overhead associated with distributed execution. While existing frameworks such as Spark…

分布式、并行与集群计算 · 计算机科学 2026-03-06 Karame Mohammadiporshokooh , Panagiotis Syskakis , Andrew Lumsdaine , Hartmut Kaiser

Scheduling in Grid computing has been active area of research since its beginning. However, beginners find very difficult to understand related concepts due to a large learning curve of Grid computing. Thus, there is a need of concise…

分布式、并行与集群计算 · 计算机科学 2014-07-16 Harshadkumar B. Prajapati , Vipul A. Shah

The ScotGrid distributed Tier-2 now provides more that 4MSI2K and 500TB for LHC computing, which is spread across three sites at Durham, Edinburgh and Glasgow. Tier-2 sites have a dual role to play in the computing models of the LHC VOs.…

分布式、并行与集群计算 · 计算机科学 2010-05-25 Sam Skipsey , Greig Cowan , Mike Kenyon , Stuart Purdie , Graeme Stewart

Several NP-hard problems are solved exactly using exponential-time branching strategies, whether it be branch-and-bound algorithms, or bounded search trees in fixed-parameter algorithms. The number of tractable instances that can be handled…

分布式、并行与集群计算 · 计算机科学 2023-05-17 Andres Pastrana-Cruz , Manuel Lafond

Parallel real-time embedded applications can be modelled as directed acyclic graphs (DAGs) whose nodes model subtasks and whose edges model precedence constraints among subtasks. Efficiently scheduling such parallel tasks can be challenging…

分布式、并行与集群计算 · 计算机科学 2024-10-24 Shardul Lendve , Konstantinos Bletsas , Pedro F. Souto

This paper investigates an edge computing system where requests are processed by a set of replicated edge servers. We investigate a class of applications where similar queries produce identical results. To reduce processing overhead on the…

新兴技术 · 计算机科学 2024-05-29 Adrian-Cristian Nicolaescu , Spyridon Mastorakis , Md Washik Al Azad , David Griffin , Miguel Rio

Structured Cartesian grids are a fundamental component in numerical simulations. Although these grids facilitate straightforward discretization schemes, their na\"{i}ve use in sparse domains leads to excessive memory overhead and…

计算工程、金融与科学 · 计算机科学 2025-12-15 Fan Gu , Xiangyu Hu

In the ALICE experiment hundreds of users are analyzing big datasets on a Grid system. High throughput and short turn-around times are achieved by a centralized system called the LEGO trains. This system combines analysis from different…

高能物理 - 实验 · 物理学 2019-08-13 Markus Zimmermann

Checkpointing is an indispensable technique to provide fault tolerance for long-running high-throughput applications like those running on desktop grids. This paper argues that a dedicated checkpoint storage system, optimized to operate in…

分布式、并行与集群计算 · 计算机科学 2011-11-10 Samer Al Kiswany , Matei Ripeanu , Sudharshan S. Vazhkudai , Abdullah Gharaibeh

We study online graph queries that retrieve nearby nodes of a query node from a large network. To answer such queries with high throughput and low latency, we partition the graph and process the data in parallel across a cluster of servers.…

数据库 · 计算机科学 2017-10-17 Arijit Khan , Gustavo Segovia , Donald Kossmann

Traditional database systems are built around the query-at-a-time model. This approach tries to optimize performance in a best-effort way. Unfortunately, best effort is not good enough for many modern applications. These applications…

数据库 · 计算机科学 2012-03-02 Georgios Giannikis , Gustavo Alonso , Donald Kossmann