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Carefully balancing load in distributed stream processing systems has a fundamental impact on execution latency and throughput. Load balancing is challenging because real-world workloads are skewed: some tuples in the stream are associated…

分布式、并行与集群计算 · 计算机科学 2016-01-28 Muhammad Anis Uddin Nasir , Gianmarco De Francisci Morales , Nicolas Kourtellis , Marco Serafini

Distributed approaches based on the map-reduce programming paradigm have started to be proposed in the bioinformatics domain, due to the large amount of data produced by the next-generation sequencing techniques. However, the use of…

分布式、并行与集群计算 · 计算机科学 2018-07-05 Umberto Ferraro Petrillo , Mara Sorella , Giuseppe Cattaneo , Raffaele Giancarlo , Simona Rombo

Parallel shared-nothing data management systems have been widely used to exploit a cluster of machines for efficient and scalable data processing. When a cluster needs to be dynamically scaled in or out, data must be efficiently rebalanced.…

数据库 · 计算机科学 2021-05-25 Chen Luo , Michael J. Carey

In this paper, we investigate how we can leverage Spark platform for efficiently processing provenance queries on large volumes of workflow provenance data. We focus on processing provenance queries at attribute-value level which is the…

分布式、并行与集群计算 · 计算机科学 2018-10-26 Rajmohan C , Pranay Lohia , Himanshu Gupta , Siddhartha Brahma , Mauricio Hernandez , Sameep Mehta

Today's big data science communities manage their data publication and replication at the application layer. These communities utilize myriad mechanisms to publish, discover, and retrieve datasets - the result is an ecosystem of either…

网络与互联网体系结构 · 计算机科学 2022-11-03 Justin Presley , Xi Wang , Tym Brandel , Xusheng Ai , Proyash Podder , Tianyuan Yu , Varun Patil , Lixia Zhang , Alex Afanasyev , F. Alex Feltus , Susmit Shannigrahi

Spark provides an in-memory implementation of MapReduce that is widely used in the big data industry. MPI/OpenMP is a popular framework for high performance parallel computing. This paper presents a high performance MapReduce design in…

分布式、并行与集群计算 · 计算机科学 2019-02-05 Junhao Li

Since Gartner coined the term, Hybrid Transactional and Analytical Processing (HTAP), numerous HTAP databases have been proposed to combine transactions with analytics in order to enable real-time data analytics for various data-intensive…

数据库 · 计算机科学 2024-04-25 Chao Zhang , Guoliang Li , Jintao Zhang , Xinning Zhang , Jianhua Feng

In this work, we detail the design and structure of a Synopses Data Engine (SDE) which combines the virtues of parallel processing and stream summarization towards delivering interactive analytics at extreme scale. Our SDE is built on top…

数据库 · 计算机科学 2020-05-14 Antonis Kontaxakis , Nikos Giatrakos , Antonios Deligiannakis

Large Language Models (LLMs) have shown remarkable proficiency in natural language understanding (NLU), opening doors for innovative applications. We introduce StreamLink - an LLM-driven distributed data system designed to improve the…

数据库 · 计算机科学 2025-05-29 Dawei Feng , Di Mei , Huiri Tan , Lei Ren , Xianying Lou , Zhangxi Tan

This paper presents a Spark-based modular LangGraph framework, designed to enhance machine learning workflows through scalability, visualization, and intelligent process optimization. At its core, the framework introduces Agent AI, a…

人工智能 · 计算机科学 2024-12-09 Jialin Wang , Zhihua Duan

In this work, we consider the challenges of developing a distributed solver for models based on nonlocal interactions. In nonlocal models, in contrast to the local model, such as the wave and heat partial differential equation, the material…

分布式、并行与集群计算 · 计算机科学 2021-07-09 Pranav Gadikar , Patrick Diehl , Prashant K. Jha

This paper describes PlinyCompute, a system for development of high-performance, data-intensive, distributed computing tools and libraries. In the large, PlinyCompute presents the programmer with a very high-level, declarative interface,…

Cloud computing has demonstrated that processing very large datasets over commodity clusters can be done simply given the right programming model and infrastructure. In this paper, we describe the design and implementation of the Sector…

分布式、并行与集群计算 · 计算机科学 2009-01-17 Yunhong Gu , Robert L Grossman

Open and permissionless blockchains are distributed systems with thousands to tens of thousands of nodes, establishing novel platforms for decentralized applications. When realizing such an application, data might be stored and retrieved…

分布式、并行与集群计算 · 计算机科学 2023-09-25 Felix Härer

Organizations struggle to share data across departments that have adopted different data analytics platforms. If n datasets must serve m environments, up to n*m replicas can emerge, increasing inconsistency and cost. Traditional warehouses…

数据库 · 计算机科学 2025-12-04 Ryoto Miyamoto , Akira Kasuga

Indexing sequence data is important in the context of Precision Medicine, where large amounts of ``omics'' data have to be daily collected and analyzed in order to categorize patients and identify the most effective therapies. Here we…

分布式、并行与集群计算 · 计算机科学 2020-07-21 Mario Randazzo , Simona E. Rombo

Blockchain technology is a Distributed Ledger Technology mainly used to store information in an immutable and secure way, but scalability and throughput issues are major challenges. Integration of the NoSQL paradigm within a Blockchain…

软件工程 · 计算机科学 2023-05-26 Federico Carrozzino , Marco Fiore , Marina Mongiello

With the ever-increasing dataset sizes, several file formats like Parquet, ORC, and Avro have been developed to store data efficiently and to save network and interconnect bandwidth at the price of additional CPU utilization. However, with…

分布式、并行与集群计算 · 计算机科学 2021-05-24 Jayjeet Chakraborty , Ivo Jimenez , Sebastiaan Alvarez Rodriguez , Alexandru Uta , Jeff LeFevre , Carlos Maltzahn

We report on an open-source implementation for distributed function minimization on top of Apache Spark by using gradient and quasi-Newton methods. We show-case it with an application to Optimal Transport and some scalability tests on…

机器学习 · 计算机科学 2019-09-18 Andrea Schioppa

Sheer increase in volume of data over the last decade has triggered research in cluster computing frameworks that enable web enterprises to extract big insights from big data. While Apache Spark is gaining popularity for exhibiting superior…

分布式、并行与集群计算 · 计算机科学 2015-08-03 Ahsan Javed Awan , Mats Brorsson , Vladimir Vlassov , Eduard Ayguade