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《Journal of Donghua University(English Edition)》 2007年02期
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Web-Based Information Extraction Technology

孙铁利  教巍巍  刘淑华  
【摘要】:Information extraction techniques on the Web are the current research hotspot. Now many information extraction techniques based on different principles have appeared and have different capabilities. We classify the existing information extraction techniques by the principle of information extraction and analyze the methods and principles of semantic information adding, schema defining, rule expression, semantic items locating and object locating in the approaches. Based on the above survey and analysis, several open problems are discussed.

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