Token-Templates and Logic Programs for Intelligent Web Search
作者:Bernd Thomas
摘要
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.
论文关键词:information extraction, template based wrappers, mediators, logic programming, theory reasoning, deductive web databases, softbots, logic robots
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论文官网地址:https://doi.org/10.1023/A:1008792020665