Automatic information extraction from large websites.

Automatic information extraction from large websites.

Information extraction from websites is nowadays a relevant problem, usually performed by software modules called wrappers. A key requirement is that the wrapper generation process should be automated to the largest extent, in order to allow for large-scale extraction tasks even in presence of chang...

Täydet tiedot

Bibliografiset tiedot
Julkaisussa:Journal of the ACM 51, 5 (2004).
Päätekijä: Crescenzi, Valter
Aineistotyyppi: Artikkeli
Kieli:English
Aiheet:
Theory of computation.
Mathematical logic and formal languages.
Formal languages.
Classes defined by grammars or automata (e.g., context-free languages, regular sets, recursive sets).
Information systems.
Database management.
Systems.
Relational databases.
Algorithms.
Theory.