caa a22 4500 475799259 CHVBK 20180406123732.0 cr unu---uuuuu 170329e20000301xx s 000 0 eng 10.1023/A:1008792020665 doi (NATIONALLICENCE)springer-10.1023/A:1008792020665 Thomas Bernd Institut für Informatik, Universität Koblenz, Rheinau 1, D-56075, Koblenz, Germany aut Token-Templates and Logic Programs for Intelligent Web Search [Elektronische Daten] [Bernd Thomas] We present a general framework for the information extraction from web pages based on a special wrapper language, called token-templates. By using token-templates in conjunction with logic programs we are able to reason about web page contents, search and collect facts and derive new facts from various web pages. We give a formal definition for the semantics of logic programs extended by token-templates and define a general answer-complete calculus for these extended programs. These methods and techniques are used to build intelligent mediators and web information systems. Kluwer Academic Publishers, 2000 information extraction nationallicence template based wrappers nationallicence mediators nationallicence logic programming nationallicence theory reasoning nationallicence deductive web databases nationallicence softbots nationallicence logic robots nationallicence Journal of Intelligent Information Systems Kluwer Academic Publishers 14/2-3(2000-03-01), 241-261 0925-9902 14:2-3<241 2000 14 10844 https://doi.org/10.1023/A:1008792020665 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1008792020665 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Thomas Bernd Institut für Informatik, Universität Koblenz, Rheinau 1, D-56075, Koblenz, Germany aut NATIONALLICENCE 773 0- Journal of Intelligent Information Systems Kluwer Academic Publishers 14/2-3(2000-03-01), 241-261 0925-9902 14:2-3<241 2000 14 10844 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer