5954 search results - page 306 / 1191 » Querying Bi-level Information |
275
click to vote
ICDT
2009
ACM
16 years 7 months ago
2009
ACM
We study containment and equivalence of (unions of) conjunctive queries on relations annotated with elements of a commutative semiring. Such relations and the semantics of positiv...
198
click to vote
WWW
2009
ACM
16 years 7 months ago
2009
ACM
A pressing task during the unification process is to identify a user's vertical search intention based on the user's query. In this paper, we propose a novel method to p...
197
click to vote
CHI
2008
ACM
16 years 7 months ago
2008
ACM
Entering search terms on mobile phones is a time consuming and cumbersome task. In this paper, we explore the usage patterns of query entry interfaces that display suggestions. Ou...
277
click to vote
VLDB
2001
ACM
16 years 7 months ago
2001
ACM
Abstract In this paper we present a mechanism for approximately translating Boolean query constraints across heterogeneous information sources. Achieving the best translation is ch...
260
Voted
VLDB
2007
ACM
16 years 7 months ago
2007
ACM
In large-scale distributed information systems, where participants are autonomous and have special interests for some queries, query allocation is a challenge. Much work in this c...