272 search results - page 28 / 55 » SQL Queries Over Unstructured Text Databases |
ICDE
2009
IEEE
14 years 9 months ago
2009
IEEE
Information extraction from text databases is a useful paradigm to populate relational tables and unlock the considerable value hidden in plain-text documents. However, information...
ICDE
2005
IEEE
14 years 8 months ago
2005
IEEE
In this demonstration, we present a database over complex documents, which, in addition to a structured text content, also has update information, annotations, and embedded object...
SIGMOD
1999
ACM
13 years 11 months ago
1999
ACM
A major bottleneck in implementing sampling as a primitive relational operation is the ine ciency ofsampling the output of a query. It is not even known whether it is possible to ...
EDBT
2006
ACM
14 years 7 months ago
2006
ACM
: This work describes a method for processing XPath on a relational back-end that significantly limits the number of SQL joins required, takes advantage of the strengths of modern ...
SIGIR
2000
ACM
13 years 11 months ago
2000
ACM
Abstract The explosion of content in distributed information retrieval (IR) systems requires new mechanisms to attain timely and accurate retrieval of unstructured text. In this pa...