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Displaying 1-6 out of 6 total
Differential Logging: A Commutative and Associative Logging Scheme for Highly Parallel Main Memory Database
Found in: Data Engineering, International Conference on
By Juchang Lee, Kihong Kim, Sang K. Cha
Issue Date:April 2001
pp. 0173
Abstract: With a gigabyte of memory priced at less than $2,000, the main-memory DBMS (MMDBMS) is emerging as an economically viable alternative to the disk-resident DBMS (DRDBMS) in many problem domains. The MMDBMS can show significantly higher performance...
A Performance Anomaly Detection and Analysis Framework for DBMS Development
Found in: IEEE Transactions on Knowledge and Data Engineering
By Donghun Lee,Sang K. Cha,Arthur H. Lee
Issue Date:August 2012
pp. 1345-1360
Detecting performance anomalies and finding their root causes are tedious tasks requiring much manual work. Functionality enhancements in DBMS development as in most software development often introduce performance problems in addition to bugs. To detect t...
Efficient Web-Based Access to Multiple Geographic Databases through Automatically Generated Wrappers
Found in: Web Information Systems Engineering, International Conference on
By Sang K. Cha, Kihong Kim, Changbin Song, Yongsik Kwon, Sangyong Hwang
Issue Date:June 2000
pp. 0034
With the proliferation of various geographic database servers on the Internet, the need to access them simultaneously through the Web arises frequently for high-level decision-making. The ongoing OpenGIS standard ad-dresses many of the interoperability iss...
Paradigm Shift to New DBMS Architectures: Research Issues and Market Needs
Found in: Data Engineering, International Conference on
By Sang K. Cha, Anastassia Ailamaki, Yoshinori Hara, Vishal Sikka
Issue Date:April 2005
pp. 1140
No summary available.
Optimizing multidimensional index trees for main memory access
Found in: Proceedings of the 2001 ACM SIGMOD international conference on Management of data (SIGMOD '01)
By Keunjoo Kwon, Kihong Kim, Sang K. Cha
Issue Date:May 2001
pp. 256-266
Recent studies have shown that cache-conscious indexes such as the CSB+-tree outperform conventional main memory indexes such as the T-tree. The key idea of these cache-conscious indexes is to eliminate most of child pointers from a node to increase the fa...
Sibling clustering of tree-based spatial indexes for efficient spatial query processing
Found in: Proceedings of the seventh international conference on Information and knowledge management (CIKM '98)
By Kihong Kim, Sang K. Cha
Issue Date:November 1998
pp. 398-405
This paper focuses on the consistency issues related to integrating multiple sets of spatial data in spatial information systems such as Geographic Information Systems (GISs). Data sets to be integrated are assumed to hold information about the same geogra...