109 search results - page 5 / 22 » Estimating Recall and Precision for Vague Queries in Databas... |
WWW
2004
ACM
14 years 8 months ago
2004
ACM
Often Web database users experience difficulty in articulating their needs using a precise query. Providing ranked set of possible answers would benefit such users. We propose to ...
VLDB
2004
ACM
14 years 1 months ago
2004
ACM
In a Web database that dynamically provides information in response to user queries, two distinct schemas, interface schema (the schema users can query) and result schema (the sch...
BTW
1999
Springer
13 years 12 months ago
1999
Springer
Conceptual Information Systems provide a multi-dimensional conceptually structured view on data stored in relational databases. On restricting the expressiveness of the retrieval l...
DBPL
2009
Springer
14 years 2 months ago
2009
Springer
Abstract. We propose a framework in which query sizes can be estimated from arbitrary statistical assertions on the data. In its most general form, a statistical assertion states t...
VLDB
1991
ACM
13 years 11 months ago
1991
ACM
Most database interfaces provide poor guidance on ad hoc query formulation, burdening users to learn, and to recall precisely the query language and the database. Kaleidoscope avo...