204 search results - page 16 / 41 » Containment of Conjunctive Queries with Negation: Algorithms... |
ITCC
2003
IEEE
14 years 1 months ago
2003
IEEE
We present an efficient algorithm called the Quadtree Heuristic for identifying a list of similar terms for each unique term in a large document collection. Term similarity is de...
PVLDB
2008
13 years 7 months ago
2008
Graphs are widely used to model complicated data semantics in many applications. In this paper, we aim to develop efficient techniques to retrieve graphs, containing a given query...
KDD
2008
ACM
14 years 8 months ago
2008
ACM
There is an exploding amount of user-generated content on the Web due to the emergence of "Web 2.0" services, such as Blogger, MySpace, Flickr, and del.icio.us. The part...
SIGMOD
2010
ACM
14 years 16 days ago
2010
ACM
We consider the problem of computing all-pair correlations in a warehouse containing a large number (e.g., tens of thousands) of time-series (or, signals). The problem arises in a...
DASFAA
2007
IEEE
14 years 2 months ago
2007
IEEE
Nearest-neighbor queries are an important query type for commonly used feature databases. In many different application areas, e.g. sensor databases, location based services or fac...