中文
相关论文

相关论文: Batch is back: CasJobs, serving multi-TB data on t…

200 篇论文

During the last few years, the explosion of Big Data has prompted cloud infrastructures to provide cloud-based database services as cost effective, efficient and scalable solutions to store and process large volume of data. Hence, NoSQL…

数据库 · 计算机科学 2021-07-06 G. Dumindu Samaraweera , J. Morris Chang

We introduce AXS (Astronomy eXtensions for Spark), a scalable open-source astronomical data analysis framework built on Apache Spark, a widely used industry-standard engine for big data processing. Building on capabilities present in Spark,…

In this paper, we propose DSSP, a Distributed, SLO-aware, Sensing-domain-privacy-Preserving architecture for Sensing-as-a-Service (SaS). DSSP addresses four major limitations of the current SaS architecture. First, to improve sensing…

分布式、并行与集群计算 · 计算机科学 2023-08-24 Lin Sun , Todd Rosenkrantz , Prathyusha Enganti , Huiyang Li , Zhijun Wang , Hao Che , Hong Jiang , Xukai Zou

Collaborative web applications such as Facebook, Flickr and Yelp present new challenges for storing and querying large amounts of data. As users and developers are focused more on performance than single copy consistency or the ability to…

数据库 · 计算机科学 2009-09-15 Michael Armbrust , Armando Fox , David Patterson , Nick Lanham , Beth Trushkowsky , Jesse Trutna , Haruki Oh

Cascade systems comprise a two-model sequence, with a lightweight model processing all samples and a heavier, higher-accuracy model conditionally refining harder samples to improve accuracy. By placing the light model on the device side and…

机器学习 · 计算机科学 2023-06-23 Sokratis Nikolaidis , Stylianos I. Venieris , Iakovos S. Venieris

Current and future astronomical surveys are producing catalogs with millions and billions of objects. On-line access to such big datasets for data mining and cross-correlation is usually as highly desired as unfeasible. Providing these…

数据库 · 计算机科学 2007-05-23 Maria A. Nieto-Santisteban , Aniruddha R. Thakar , Alexander S. Szalay , Jim Gray

This article describes a data center hosting a web portal for accessing and sharing the output of large, cosmological, hydro-dynamical simulations with a broad scientific community. It also allows users to receive related scientific data…

With the advent of internet services, data started growing faster than it can be processed. To personalize user experience, this enormous data has to be processed in real time, in interactive fashion. In order to achieve faster data…

分布式、并行与集群计算 · 计算机科学 2014-04-21 Sundeep Kambhampati , Christopher Stewart

Relational databases (DBs) are ideal tools to manage bulky and structured data archives. In particular for Astronomy they can be used to fulfill all the requirements of a complex project, i.e. the management of: documents, software (s/w)…

天体物理学 · 物理学 2007-05-23 L. Nicastro , G. Calderone

Scientific applications in HPC environment are more com-plex and more data-intensive nowadays. Scientists usually rely on workflow system to manage the complexity: simply define multiple processing steps into a single script and let the…

分布式、并行与集群计算 · 计算机科学 2018-05-17 Dong Dai , Robert Ross , Dounia Khaldi , Yonghong Yan , Matthieu Dorier , Neda Tavakoli , Yong Chen

Many real-world data science tasks involve complex web-based interactions: finding appropriate data available on the internet, synthesizing multimodal data from different locations, and producing summarized analyses. Existing web benchmarks…

Scientific Workflow Systems (SWSs) are advanced software frameworks that drive modern research by orchestrating complex computational tasks and managing extensive data pipelines. These systems offer a range of essential features, including…

软件工程 · 计算机科学 2025-06-26 Khairul Alam , Banani Roy , Chanchal K. Roy , Kartik Mittal

Scientific discoveries are increasingly driven by analyzing large volumes of image data. Many new libraries and specialized database management systems (DBMSs) have emerged to support such tasks. It is unclear, however, how well these…

In today's world data is being generated at a high rate due to which it has become inevitable to analyze and quickly get results from this data. Most of the relational databases primarily support SQL querying with a limited support for…

数据库 · 计算机科学 2021-04-08 Alex Watson , Suvam Kumar Das , Suprio Ray

In the coming decade, astronomical surveys of the sky will generate tens of terabytes of images and detect hundreds of millions of sources every night. The study of these sources will involve computation challenges such as anomaly detection…

分布式、并行与集群计算 · 计算机科学 2015-05-20 Keith Wiley , Andrew Connolly , Jeff Gardner , Simon Krughof , Magdalena Balazinska , Bill Howe , YongChul Kwon , YingYi Bu

We present the Data Release 14 Quasar catalog (DR14Q) from the extended Baryon Oscillation Spectroscopic Survey (eBOSS) of the Sloan Digital Sky Survey IV (SDSS-IV). This catalog includes all SDSS-IV/eBOSS objects that were…

This paper provides a case study on satellite data processing, storage, and distribution in the space weather domain by introducing the Satellite Data Downloading System (SDDS). The approach proposed in this paper was evaluated through…

天体物理仪器与方法 · 物理学 2018-12-10 Minh Duc Nguyen

The Sloan Digital Sky Survey (SDSS) is a project to definitively map $\pi$ steradians of the local Universe. An array of CCD detectors used in drift-scan mode will digitally image the sky in five passbands to a limiting magnitude of $r'…

天体物理学 · 物理学 2007-05-23 Jon Loveday