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Automatic deep Web query results extraction is a key step of deep Web query results processing. Extracting the query results correctly is the precondition and guarantee of realizing semantic annotation and data integration. In this paper, a simple method for extracting deep Web query results automatically based on tag trees is proposed according to the features of deep Web query results page. The...
For integrating web databases, the very first challenge is to understand what a query interface says or what query capabilities a source supports. From the view of people, the interior structure of web pages is not concerned to for people. In the most cases, semantic block is identified via visual elements. Therefore, in this paper, a novel arithmetic of schema extraction based on visual features...
One promising application of natural language processing (NLP) research is in the area of information extraction (IE). In this paper, we present work flow of our IE system for the extraction of semantically rich information from the unstructured or semi-structured Chinese web pages. Knowledge engineering approach and automatic training approach are used to extract pattern and built knowledge repository...
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