621 search results - page 80 / 125 » Efficient algorithms for minimizing tree pattern queries |
VLDB
2007
ACM
14 years 8 months ago
2007
ACM
Recent research on skyline queries has attracted much interest in the database and data mining community. Given a database, an object belongs to the skyline if it cannot be domina...
ICDE
2006
IEEE
14 years 9 months ago
2006
IEEE
A top-k query combines different rankings of the same set of objects and returns the k objects with the highest combined score according to an aggregate function. We bring to ligh...
ECCC
2007
13 years 7 months ago
2007
We study the notion of learning in an oblivious changing environment. Existing online learning algorithms which minimize regret are shown to converge to the average of all locally...
ACSC
2006
IEEE
14 years 2 months ago
2006
IEEE
Nearest neighbour (NN) searches and k nearest neighbour (k-NN) searches are widely used in pattern recognition and image retrieval. An NN (k-NN) search finds the closest object (...
ESA
2011
Springer
12 years 7 months ago
2011
Springer
Abstract. In this paper we address the problem of building a compressed self-index that, given a distribution for the pattern queries and a bound on the space occupancy, minimizes ...