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BTW
2007
Springer
142views Database» more  BTW 2007»
14 years 1 months ago
Algebraic Query Optimization for Distributed Top-k Queries
: Distributed top-k query processing is increasingly becoming an essential functionality in a large number of emerging application classes. This paper addresses the efficient alge...
Thomas Neumann, Sebastian Michel
ICDE
2008
IEEE
190views Database» more  ICDE 2008»
14 years 8 months ago
Adaptive Segmentation for Scientific Databases
In this paper we explore database segmentation in the context of a column-store DBMS targeted at a scientific database. We present a novel hardware- and scheme-oblivious segmentati...
Milena Ivanova, Martin L. Kersten, Niels Nes
ICDE
2003
IEEE
170views Database» more  ICDE 2003»
14 years 8 months ago
Keyword Proximity Search on XML Graphs
XKeyword provides efficient keyword proximity queries on large XML graph databases. A query is simply a list of keywords and does not require any schema or query language knowledg...
Vagelis Hristidis, Yannis Papakonstantinou, Andrey...
EDBT
2006
ACM
129views Database» more  EDBT 2006»
14 years 7 months ago
Efficient Quantile Retrieval on Multi-dimensional Data
Given a set of N multi-dimensional points, we study the computation of -quantiles according to a ranking function F, which is provided by the user at runtime. Specifically, F compu...
Man Lung Yiu, Nikos Mamoulis, Yufei Tao
DEXAW
2009
IEEE
141views Database» more  DEXAW 2009»
13 years 8 months ago
Improving Practical Performance on Secure and Private Collaborative Linear Programming
Although information sharing in supply chain management dramatically reduces costs, parties are reluctant to do so, mainly due to fear of information leakage. Solutions based on se...
Rafael Deitos, Florian Kerschbaum