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检索条件"主题词=database query processing"
49 条 记 录,以下是11-20 订阅
排序:
Generating custom code for efficient query execution on heterogeneous processors
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VLDB JOURNAL 2018年 第6期27卷 797-822页
作者: Bress, Sebastian Koecher, Bastian Funke, Henning Zeuch, Steffen Rabl, Tilmann Markl, Volker DFKI GmbH Berlin Germany TU Berlin Berlin Germany TU Dortmund Dortmund Germany
Processor manufacturers build increasingly specialized processors to mitigate the effects of the power wall in order to deliver improved performance. Currently, database engines have to be manually optimized for each ... 详细信息
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Data Lab-A community science platform
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ASTRONOMY AND COMPUTING 2020年 33卷
作者: Nikutta, R. Fitzpatrick, M. Scott, A. Weaver, B. A. NSFs Natl Opt Infrared Astron Res Lab 950 N Cherry Ave Tucson AZ 85719 USA
Data Lab is an open-access science platform developed and operated by the Community and Science Data Center (CSDC) at NSF's National Optical-Infrared Astronomy Research Laboratory (NOIRLab). It serves public photo... 详细信息
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Probe minimization by schedule optimization: Supporting top-k queries with expensive predicates
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IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING 2007年 第5期19卷 646-662页
作者: Hwang, Seung-won Chang, Kevin Chen-Chuan Pohang Univ Sci & Technol Dept Comp Sci & Engn Pohang 790784 South Korea Univ Illinois Dept Comp Sci Urbana IL 61801 USA
This paper addresses the problem of evaluating ranked top-k queries with expensive predicates. As major DBMSs now all support expensive user-defined predicates for Boolean queries, we believe such support for ranked q... 详细信息
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A graphical user-interface for knowledge discovery in databases
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ENGINEERING APPLICATIONS OF ARTIFICIAL INTELLIGENCE 1996年 第6期9卷 691-700页
作者: Wu, X Cercone, N UNIV REGINA REGINASK S4S 0A2CANADA
This paper describes a graphical user-interface for database-oriented knowledge discovery systems, DBLEARN, which has been developed for extracting knowledge rules from relational databases. The interface, designed us... 详细信息
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Fusion Coding of Correlated Sources for Storage and Selective Retrieval
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IEEE TRANSACTIONS ON SIGNAL processing 2010年 第3期58卷 1722-1731页
作者: Ramaswamy, Sharadh Nayak, Jayant Rose, Kenneth Mayachitra Inc Santa Barbara CA 93111 USA Univ Calif Santa Barbara Dept Elect & Comp Engn Santa Barbara CA 93106 USA
We focus on a new, potentially important application of source coding directed toward storage and retrieval, termed fusion coding of correlated sources. The task at hand is to efficiently store multiple correlated sou... 详细信息
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Fast in-database cross-matching of high-cadence, high-density source lists with an up-to-date sky model
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ASTRONOMY AND COMPUTING 2018年 23卷 27-39页
作者: Scheers, B. Bloemen, S. Muhleisen, H. Schellart, P. van Elteren, A. Kersten, M. Groot, P. J. CWI POB 94079 NL-1090 GB Amsterdam Netherlands Radboud Univ Nijmegen IMAPP Dept Astrophys NL-6500 GL Nijmegen Netherlands NOVA Opt InfraRed Instrumentat Grp Oude Hoogeveensedijk 4 NL-7991 PD Dwingeloo Netherlands Princeton Univ Dept Astrophys Sci Princeton NJ 08544 USA Leiden Univ Leiden Observ POB 9513 NL-2300 RA Leiden Netherlands
Coming high-cadence wide-field optical telescopes will image hundreds of thousands of sources per minute. Besides inspecting the near real-time data streams for transient and variability events, the accumulated data a... 详细信息
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SORT VS HASH REVISITED
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IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING 1994年 第6期6卷 934-944页
作者: GRAEFE, G LINVILLE, A SHAPIRO, LD UNIV COLORADO DEPT COMP SCIBOULDERCO 80309 PORTLAND STATE UNIV DEPT COMP SCIPORTLANDOR 97207
Efficient algorithms for processing large volumes of data are very important both for relational and new object-oriented database systems. Many query-processing operations can be implemented using sort- or hash-based ... 详细信息
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AGGREGATE query processing FOR SEMANTIC WEB databaseS: AN ALGEBRAIC APPROACH
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INTERNATIONAL JOURNAL OF SEMANTIC COMPUTING 2007年 第4期1卷 479-495页
作者: Seid, Dawit Mehrotra, Sharad Univ Calif Irvine Dept Comp Sci Irvine CA 92697 USA
As a growing number of applications represent data as semantic graphs like RDF (Resource Description Format) and the many entity-attribute-value formats, query languages for such data are being required to support ope... 详细信息
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ON SORT-MERGE ALGORITHM FOR BAND JOINS
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IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING 1995年 第3期7卷 508-510页
作者: LU, HJ TAN, KL Department ot Information Syatems and Computer Science National University of Singapore Singapore
This correspondence proposes two ways to improve the soft-merge based band join algorithm. The techniques proposed address issues that have not been previously discussed: to choose a right relation as the inner relati... 详细信息
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A query Simulation System To Illustrate database query Execution  08
A Query Simulation System To Illustrate Database Query Execu...
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39th ACM Technical Symposium on Computer Science Education
作者: Allenstein, Brett Yost, Andrew Wagner, Paul Morrison, Joline Skyline Technol Green Bay WI 54301 USA
The underlying processes that enable database query execution are fundamental to understanding database management systems. However, these processes are complex and can be difficult to explain and illustrate. To addre... 详细信息
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