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CORR
2008
Springer
74views Education» more  CORR 2008»
13 years 4 months ago
Biased Range Trees
A data structure, called a biased range tree, is presented that preprocesses a set S of n points in R2 and a query distribution D for 2-sided orthogonal range counting queries. The...
Vida Dujmovic, John Howat, Pat Morin
SODA
2000
ACM
132views Algorithms» more  SODA 2000»
13 years 6 months ago
Expected-case complexity of approximate nearest neighbor searching
Most research in algorithms for geometric query problems has focused on their worstcase performance. However, when information on the query distribution is available, the alternat...
Sunil Arya, Ho-Yam Addy Fu
ADC
2000
Springer
182views Database» more  ADC 2000»
13 years 8 months ago
Efficient Range Query Retrieval for Non-Uniform Data Distributions
Answering range queries is a common database operation. Methods based on hashing techniques to minimise the cost of answering range queries by taking the query distribution into a...
Salahadin Mohammed, Evan P. Harris, Kotagiri Ramam...
KR
1992
Springer
13 years 8 months ago
Learning Useful Horn Approximations
While the task of answering queries from an arbitrary propositional theory is intractable in general, it can typicallybe performed e ciently if the theory is Horn. This suggests t...
Russell Greiner, Dale Schuurmans