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Aggregation has been an important operation since the early days of relational databases. Today's Big Data applications bring further challenges when processing aggregation queries, demanding adaptive aggregation algorithms that can process…

数据库 · 计算机科学 2013-11-04 Jian Wen , Vinayak R. Borkar , Michael J. Carey , Vassilis J. Tsotras

Energy consumption is one of the most critical concerns in designing computing devices, ranging from portable embedded systems to computer cluster systems. Furthermore, in the past decade, cluster systems have increasingly risen as popular…

分布式、并行与集群计算 · 计算机科学 2019-12-12 Amirhossein Esmaili , Massoud Pedram

This paper addresses the challenges of rapid resource variation and highly uncertain task loads in cloud computing environments. It proposes an optimization method for elastic cloud resource scaling based on a multi-agent system. The method…

分布式、并行与集群计算 · 计算机科学 2025-07-02 Bruce Fang , Danyi Gao

Machine learning algorithms can perform well when trained on large datasets. While large organisations often have considerable data assets, it can be difficult for these assets to be unified in a manner that makes training possible. Data is…

机器学习 · 计算机科学 2022-03-25 Tiffany Tuor , Joshua Lockhart , Daniele Magazzeni

The cardinality estimation is a key aspect of query optimization research, and its performance has significantly improved with the integration of machine learning. To overcome the "cold start" problem or the lack of model transferability in…

数据库 · 计算机科学 2025-05-29 Boyang Fang

The use of cloud computational resources has become increasingly important for companies and researchers to access on-demand and at any moment high-performance resources. However, given the wide variety of virtual machine types, network…

分布式、并行与集群计算 · 计算机科学 2020-06-30 Vanderson Martins Do Rosario , Thais A. Silva Camacho , Otávio O. Napoli , Edson Borin

Cloud Computing is an emerging area for accessing computing resources. In general, Cloud service providers offer services that can be clustered into three categories: SaaS, PaaS and IaaS. This paper discusses the Cloud workload analysis.…

分布式、并行与集群计算 · 计算机科学 2014-02-14 Sukhpal Singh , Inderveer Chana

Grid superscheduling requires support for efficient and scalable discovery of resources. Resource discovery activities involve searching for the appropriate resource types that match the user's job requirements. To accomplish this goal, a…

网络与互联网体系结构 · 计算机科学 2007-05-23 Rajiv Ranjan , Aaron Harwood , Rajkumar Buyya

High intensive computation applications can usually take days to months to finish an execution. During this time, it is common to have variations of the available resources when considering that such hardware is usually shared among a…

分布式、并行与集群计算 · 计算机科学 2015-01-27 Kiran Mantripragada , Alecio Binotto , Leonardo P. Tizzei

The cold-start problem is a long-standing challenge in recommender systems due to the lack of user-item interactions, which significantly hurts the recommendation effect over new users and items. Recently, meta-learning based methods…

信息检索 · 计算机科学 2024-05-07 Yuxiang Shi , Yue Ding , Bo Chen , Yuyang Huang , Yule Wang , Ruiming Tang , Dong Wang

With contributions from the open-source community, a vast amount of instruction tuning (IT) data has emerged. Given the significant resource allocation required for training and evaluating models, it is advantageous to have an efficient…

计算与语言 · 计算机科学 2024-11-19 Yuan Ge , Yilun Liu , Chi Hu , Weibin Meng , Shimin Tao , Xiaofeng Zhao , Hongxia Ma , Li Zhang , Boxing Chen , Hao Yang , Bei Li , Tong Xiao , Jingbo Zhu

The rapid advancement of big data technologies has underscored the need for robust and efficient data processing solutions. Traditional Spark-based Platform-as-a-Service (PaaS) solutions, such as Databricks and Amazon Web Services Elastic…

分布式、并行与集群计算 · 计算机科学 2024-08-22 Hernan Picatto , Georg Heiler , Peter Klimek

Dynamic nature of the cloud environment has made distributed resource management process a challenge for cloud service providers. The importance of maintaining the quality of service in accordance with customer expectations as well as the…

分布式、并行与集群计算 · 计算机科学 2018-08-08 Sara Kardani-Moghaddam , Rajkumar Buyya , Kotagiri Ramamohanarao

In a cloud-native era, the Kubernetes-based workflow engine enables workflow containerized execution through the inherent abilities of Kubernetes. However, when encountering continuous workflow requests and unexpected resource request…

分布式、并行与集群计算 · 计算机科学 2024-01-04 Chenggang Shan , Chuge Wu , Yuanqing Xia , Zehua Guo , Danyang Liu , Jinhui Zhang

In this paper, we propose a novel road side unit (RSU)-assisted cooperative sensing scheme for connected autonomous vehicles (CAVs), with the objective to reduce completion time of sensing tasks. Specifically, LiDAR sensing data of both RSU…

网络与互联网体系结构 · 计算机科学 2024-11-28 Yuxuan Wang , Kaige Qu , Wen Wu , Xuemin , Shen

The aggregation efficiency and accuracy of wireless Federated Learning (FL) are significantly affected by resource constraints, especially in heterogeneous environments where devices exhibit distinct data distributions and communication…

机器学习 · 计算机科学 2025-05-27 Pengcheng Sun , Erwu Liu , Wei Ni , Kanglei Yu , Rui Wang , Abbas Jamalipour

Host load prediction is essential for dynamic resource scaling and job scheduling in a cloud computing environment. In this context, workload prediction is challenging because of several issues. First, it must be accurate to enable precise…

分布式、并行与集群计算 · 计算机科学 2023-04-27 Amin Setayesh , Hamid Hadian , Radu Prodan

The proliferation of big data and analytic workloads has driven the need for cloud compute and cluster-based job processing. With Apache Spark, users can process terabytes of data at ease with hundreds of parallel executors. At Microsoft,…

The rapid growth of data from edge devices has catalyzed the performance of machine learning algorithms. However, the data generated resides at client devices thus there are majorly two challenge faced by traditional machine learning…

机器学习 · 计算机科学 2024-07-15 Shivam Gupta , Tarushi , Tsering Wangzes , Shweta Jain

Recommender systems (RSs) are software tools and algorithms developed to alleviate the problem of information overload, which makes it difficult for a user to make right decisions. Two main paradigms toward the recommendation problem are…

信息检索 · 计算机科学 2021-05-24 Mehdi Afsar , Trafford Crump , Behrouz Far