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NDT
2010
9 years 28 days ago
A Scalable Framework for Serializable XQuery
This paper focuses on an aspect that is widely neglected in native XML database management systems: support for concurrent transactional access. We analyze the isolation requireme...
Sebastian Bächle, Theo Härder
DEXAW
1999
IEEE
98views Database» more  DEXAW 1999»
9 years 6 months ago
QoS Aware Distributed Query Processing
In the environment of wide-area networks such as the Internet, distributed query processing becomes problematic due to the changing coming from both underlying networks and user&#...
Haiwei Ye, Brigitte Kerhervé, Gregor von Bo...
WISE
2002
Springer
9 years 7 months ago
Evaluating and Enhancing Meta-Search Performance in Digital Libraries
Applying meta search systems is a suitable method to support the user if there are many different retrieval services available in the Web. Due to information splitting strategies ...
Bethina Schmitt, Sven Oberländer
CIKM
2009
Springer
9 years 9 months ago
Inverted indexes vs. bitmap indexes in decision support systems
Bitmap indexes are widely used in Decision Support Systems (DSSs) to improve query performance. In this paper, we evaluate the use of compressed inverted indexes with adapted quer...
Truls A. Bjørklund, Nils Grimsmo, Johannes ...
DASFAA
2009
IEEE
147views Database» more  DASFAA 2009»
9 years 9 months ago
"Pay-as-You-Go" Processing for Tracing Queries in a P2P Record Exchange System
In recent years, data provenance or lineage tracing which refers to the process of tracing the sources of data, data movement between databases, and annotations written for data ha...
Fengrong Li, Takuya Iida, Yoshiharu Ishikawa
EDBT
2006
ACM
139views Database» more  EDBT 2006»
10 years 2 months ago
An Extensible, Distributed Simulation Environment for Peer Data Management Systems
Abstract. Peer Data Management Systems (PDMS) have recently attracted attention by the database community. One of the main challenges of this paradigm is the development and evalua...
Katja Hose, Andreas Job, Marcel Karnstedt, Kai-Uwe...
ICDE
2007
IEEE
128views Database» more  ICDE 2007»
10 years 3 months ago
SQL Queries Over Unstructured Text Databases
Text documents often embed data that is structured in nature. By processing a text database with information extraction systems, we can define a variety of structured "relati...
Alpa Jain, AnHai Doan, Luis Gravano
ICDE
2008
IEEE
127views Database» more  ICDE 2008»
10 years 3 months ago
Optimizing SQL Queries over Text Databases
Text documents often embed data that is structured in nature, and we can expose this structured data using information extraction technology. By processing a text database with inf...
Alpa Jain, AnHai Doan, Luis Gravano
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