Sciweavers

7 search results - page 1 / 2
» Supervised Wrapper Generation with Lixto
Sort
View
VLDB
2001
ACM
143views Database» more  VLDB 2001»
13 years 9 months ago
Supervised Wrapper Generation with Lixto
We illustrate basic features of the Lixto wrapper generator such as the user and system interaction, the capacious visual interface, the marking and selecting procedures, and the ...
Robert Baumgartner, Sergio Flesca, Georg Gottlob
LPNMR
2001
Springer
13 years 9 months ago
Declarative Information Extraction, Web Crawling, and Recursive Wrapping with Lixto
Lixto is a system and method for the visual and interactive generation of wrappers for Web pages under the supervision of a human developer, for automatically extracting informatio...
Robert Baumgartner, Sergio Flesca, Georg Gottlob
VLDB
2001
ACM
83views Database» more  VLDB 2001»
13 years 9 months ago
Visual Web Information Extraction with Lixto
We present new techniques for supervised wrapper generation and automated web information extraction, and a system called Lixto implementing these techniques. Our system can gener...
Robert Baumgartner, Sergio Flesca, Georg Gottlob
COMPSAC
2003
IEEE
13 years 10 months ago
A Supervised Visual Wrapper Generator for Web-Data Extraction
Extracting data from Web pages using wrappers is a fundamental problem arising in a large variety of applications of vast practical interest. In this paper, we propose a novel sch...
Xiaofeng Meng, Haiyan Wang, Dongdong Hu, Chen Li
PODS
2002
ACM
117views Database» more  PODS 2002»
14 years 5 months ago
Monadic Datalog and the Expressive Power of Languages for Web Information Extraction
Research on information extraction from Web pages (wrapping) has seen much activity in recent times (particularly systems implementations), but little work has been done on formal...
Georg Gottlob, Christoph Koch