14248 search results - page 66 / 2850 » Queries |
SIGMOD
1999
ACM
14 years 1 months ago
1999
ACM
In this paper we present a mechanism for translating constraint queries, i.e., Boolean expressions of constraints, across heterogeneous information sources. Integrating such syste...
DIS
1998
Springer
14 years 1 months ago
1998
Springer
We consider the exact learning in the query model. We deal with all types of queries introduced by Angluin: membership, equivalence, superset, subset, disjointness and exhaustivene...
CIKM
2006
Springer
14 years 19 days ago
2006
Springer
This work addresses two common problems in search, frequently occurring with underspecified user queries: the top-ranked results for such queries may not contain documents relevan...
FQAS
2006
Springer
14 years 17 days ago
2006
Springer
Searchers' difficulty in formulating effective queries for their information needs is well known. Analysis of search session logs shows that users often pose short, vague quer...
AAAI
2007
13 years 11 months ago
2007
In this paper, we propose to mine query hierarchies from clickthrough data, which is within the larger area of automatic acquisition of knowledge from the Web. When a user submits...