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2002
ACM
140views Algorithms» more  STOC 2002»
14 years 10 months ago
Finding nearest neighbors in growth-restricted metrics
Most research on nearest neighbor algorithms in the literature has been focused on the Euclidean case. In many practical search problems however, the underlying metric is non-Eucl...
David R. Karger, Matthias Ruhl
VLDB
2001
ACM
119views Database» more  VLDB 2001»
14 years 10 months ago
PicoDBMS: Scaling down database techniques for the smartcard
Smartcards are the most secure portable computing device today. They have been used successfully in applications involving money, proprietary and personal data (such as banking, h...
Philippe Pucheral, Luc Bouganim, Patrick Valduriez...
VLDB
2001
ACM
107views Database» more  VLDB 2001»
14 years 10 months ago
A survey of approaches to automatic schema matching
Schema matching is a basic problem in many database application domains, such as data integration, Ebusiness, data warehousing, and semantic query processing. In current implementa...
Erhard Rahm, Philip A. Bernstein
VLDB
2004
ACM
119views Database» more  VLDB 2004»
14 years 10 months ago
Evaluating holistic aggregators efficiently for very large datasets
Indatawarehousingapplications,numerousOLAP queries involve the processing of holistic aggregators such as computing the "top n," median, quantiles, etc. In this paper, we...
Lixin Fu, Sanguthevar Rajasekaran
VLDB
2004
ACM
144views Database» more  VLDB 2004»
14 years 10 months ago
Preserving mapping consistency under schema changes
Abstract. In dynamic environments like the Web, data sources may change not only their data but also their schemas, their semantics, and their query capabilities.When a mapping is ...
Yannis Velegrakis, Renée J. Miller, Lucian Popa
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