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SAC
2006
ACM
14 years 1 months ago
2006
ACM
This paper introduces the MTree index algorithm, a special purpose XML XPath index designed to meet the needs of the hierarchical XPath query language. With the increasing importa...
PEPM
2010
ACM
14 years 4 months ago
2010
ACM
We show how to efficiently evaluate generic map-filter-product queries, generalizations of select-project-join (SPJ) queries in relational algebra, based on a combination of two...
FOCS
2005
IEEE
14 years 1 months ago
2005
IEEE
Robust optimization has traditionally focused on uncertainty in data and costs in optimization problems to formulate models whose solutions will be optimal in the worstcase among ...
SIGMOD
2004
ACM
14 years 7 months ago
2004
ACM
Database system architectures are undergoing revolutionary changes. Most importantly, algorithms and data are being unified by integrating programming languages with the database ...
SODA
2010
ACM
14 years 5 months ago
2010
ACM
We give an O(n lg n)-time algorithm for counting the number of inversions in a permutation on n elements. This improves a long-standing previous bound of O(n lg n/ lg lg n) that ...