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SIGMOD
2005
ACM
126views Database» more  SIGMOD 2005»
16 years 29 days ago
Cost-Sensitive Reordering of Navigational Primitives
We present a method to evaluate path queries based on the novel concept of partial path instances. Our method (1) maximizes performance by means of sequential scans or asynchronou...
Carl-Christian Kanne, Matthias Brantner, Guido Moe...
SIGMOD
2005
ACM
154views Database» more  SIGMOD 2005»
16 years 29 days ago
SHIFT-SPLIT: I/O Efficient Maintenance of Wavelet-Transformed Multidimensional Data
The Discrete Wavelet Transform is a proven tool for a wide range of database applications. However, despite broad acceptance, some of its properties have not been fully explored a...
Mehrdad Jahangiri, Dimitris Sacharidis, Cyrus Shah...
EDBT
2006
ACM
191views Database» more  EDBT 2006»
16 years 29 days ago
Parallelizing Skyline Queries for Scalable Distribution
Skyline queries help users make intelligent decisions over complex data, where different and often conflicting criteria are considered. Current skyline computation methods are rest...
Ping Wu, Caijie Zhang, Ying Feng, Ben Y. Zhao, Div...
SODA
2010
ACM
202views Algorithms» more  SODA 2010»
15 years 10 months ago
Counting Inversions, Offline Orthogonal Range Counting, and Related Problems
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 ...
Timothy M. Chan, Mihai Patrascu
88
Voted
SODA
2010
ACM
157views Algorithms» more  SODA 2010»
15 years 10 months ago
Testing monotone high-dimensional distributions
A monotone distribution P over a (partially) ordered domain assigns higher probability to y than to x if y x in the order. We study several natural problems concerning testing pr...
Ronitt Rubinfeld, Rocco A. Servedio