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» Extending the Search Strategy in a Query Optimizer
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SIGMOD
2008
ACM
123views Database» more  SIGMOD 2008»
14 years 7 months ago
Query-based partitioning of documents and indexes for information lifecycle management
Regulations require businesses to archive many electronic documents for extended periods of time. Given the sheer volume of documents and the response time requirements, documents...
Soumyadeb Mitra, Marianne Winslett, Windsor W. Hsu
ENTCS
2002
113views more  ENTCS 2002»
13 years 7 months ago
An Operational Semantics for Declarative Multi-Paradigm Languages
Practical declarative multi-paradigm languages combine the main features of functional, logic and concurrent programming (e.g., laziness, sharing, higher-order, logic variables, n...
Elvira Albert, Michael Hanus, Frank Huch, Javier O...
PODS
2006
ACM
216views Database» more  PODS 2006»
14 years 7 months ago
Cache-oblivious string B-trees
B-trees are the data structure of choice for maintaining searchable data on disk. However, B-trees perform suboptimally ? when keys are long or of variable length, ? when keys are...
Michael A. Bender, Martin Farach-Colton, Bradley C...
ISAAC
2009
Springer
132views Algorithms» more  ISAAC 2009»
14 years 1 months ago
Online Sorted Range Reporting
Abstract. We study the following one-dimensional range reporting problem: On an array A of n elements, support queries that given two indices i ≤ j and an integer k report the k ...
Gerth Stølting Brodal, Rolf Fagerberg, Mark...
SIGIR
2011
ACM
12 years 10 months ago
A boosting approach to improving pseudo-relevance feedback
Pseudo-relevance feedback has proven effective for improving the average retrieval performance. Unfortunately, many experiments have shown that although pseudo-relevance feedback...
Yuanhua Lv, ChengXiang Zhai, Wan Chen