1039 search results - page 2 / 208 » Query reformulation with constraints |
SIGMOD
2004
ACM
14 years 5 months ago
2004
ACM
We study the problem of answering queries through a target schema, given a set of mappings between one or more source schemas and this target schema, and given that the data is at...
BXML
2004
13 years 6 months ago
2004
: Whenever transformation of data is used to bridge the gap of different data formats, and a query is given in the destination format, query reformulation can speed up the transfor...
EDBT
2012
ACM
11 years 7 months ago
2012
ACM
In this paper we consider the problem of answering queries using views, with or without ontological constraints, which is important for data integration, query optimization, and d...
SIGIR
2010
ACM
13 years 5 months ago
2010
ACM
Query reformulation techniques based on query logs have recently proven to be effective for web queries. However, when initial queries have reasonably good quality, these techniqu...
WWW
2007
ACM
14 years 6 months ago
2007
ACM
In this paper, we show that most multiple term queries include more than one topic and users usually reformulate their queries by topics instead of terms. In order to provide empi...