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» Automatic Set Instance Extraction using the Web
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SOFSEM
2007
Springer
14 years 1 months ago
Creating Permanent Test Collections of Web Pages for Information Extraction Research
In the research area of automatic web information extraction, there is a need for permanent and annotated web page collections enabling objective performance evaluation of differen...
Bernhard Pollak, Wolfgang Gatterbauer
BMCBI
2010
154views more  BMCBI 2010»
13 years 7 months ago
EnvMine: A text-mining system for the automatic extraction of contextual information
Background: For ecological studies, it is crucial to count on adequate descriptions of the environments and samples being studied. Such a description must be done in terms of thei...
Javier Tamames, Victor de Lorenzo
VLDB
2004
ACM
121views Database» more  VLDB 2004»
14 years 29 days ago
An Automatic Data Grabber for Large Web Sites
We demonstrate a system to automatically grab data from data intensive web sites. The system first infers a model that describes at the intensional level the web site as a collec...
Valter Crescenzi, Giansalvatore Mecca, Paolo Meria...
WEBDB
2010
Springer
156views Database» more  WEBDB 2010»
14 years 20 days ago
Redundancy-Driven Web Data Extraction and Integration
A large number of web sites publish pages containing structured information about recognizable concepts, but these data are only partially used by current applications. Although s...
Paolo Papotti, Valter Crescenzi, Paolo Merialdo, M...
SAC
2005
ACM
14 years 1 months ago
Automatic wrapper maintenance for semi-structured web sources using results from previous queries
During the last years, significant attention has been paid to the problem of building wrappers for extracting data from semistructured web sources. Nevertheless, since web sources...
Juan Raposo, Alberto Pan, Manuel Álvarez, &...