342 search results - page 58 / 69 » Conjunctive Queries over Trees |
NIPS
2004
13 years 9 months ago
2004
This paper concerns approximate nearest neighbor searching algorithms, which have become increasingly important, especially in high dimensional perception areas such as computer v...
SIGIR
2004
ACM
14 years 1 months ago
2004
ACM
Noun phrases in queries are identified and classified into four types: proper names, dictionary phrases, simple phrases and complex phrases. A document has a phrase if all content...
TJS
2008
13 years 7 months ago
2008
XML is a flexible and powerful tool that enables information and security sharing in heterogeneous environments. Scalable technologies are needed to effectively manage the growing...
CIKM
2009
Springer
14 years 2 months ago
2009
Springer
Most of existing methods of keyword search over relational databases find the Steiner trees composed of relevant tuples as the answers. They identify the Steiner trees by discove...
FOCS
2009
IEEE
13 years 5 months ago
2009
IEEE
We give a new model of learning motivated by smoothed analysis (Spielman and Teng, 2001). In this model, we analyze two new algorithms, for PAC-learning DNFs and agnostically learn...