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The system of arms information extraction based on the ontology, consists of two parts: knowledge base, processing program. It realizes the arms category determination based on text categorization, and realizes the arms object determination based on named entity recognition. It realizes the information extraction according to information extraction rules based on syntax and semantic constraint. It...
Deep Web information integration has become more and more important due to its rich and high quality data. How to select the most appropriate web database relevant to user's requirement is challenging. However, the existing researches only focus on the data source selection method and ignore the expression of user's query requirement. This paper presents a user query requirements modeling language,...
Online databases maintain a collection of structured domain-specific documents dynamically generated in response to users' queries instead of being accessed by static URLs. Categorizing deep webs according to their object domains is a critical step to integrate such sources. While existing methods focus on supervised or post-query methodologies, we propose a more practical pre-query algorithm operating...
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