204 search results - page 20 / 41 » Containment of Conjunctive Queries with Negation: Algorithms... |
NIPS
2007
13 years 11 months ago
2007
We present a framework for active learning in the multiple-instance (MI) setting. In an MI learning problem, instances are naturally organized into bags and it is the bags, instea...
LREC
2010
13 years 11 months ago
2010
Textual information is an important communication medium contained rich expression of emotion, and emotion recognition on text has wide applications. Word emotion analysis is fund...
KDD
2004
ACM
14 years 10 months ago
2004
ACM
In this paper we provide a fast, data-driven solution to the failing query problem: given a query that returns an empty answer, how can one relax the query's constraints so t...
SIGMOD
2004
ACM
14 years 10 months ago
2004
ACM
We present new algorithms on commodity graphics processors to perform fast computation of several common database operations. Specifically, we consider operations such as conjunct...
SEMCO
2008
IEEE
14 years 4 months ago
2008
IEEE
One challenge for relevance ranking in Web search is underspecified queries. For such queries, top-ranked documents may contain information irrelevant to the search goal of the us...