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Keyword extraction is an important application in the area of information technology. Automatic keyword extraction can help people know what is the article primarily talking about without reading the long passage carefully. This paper mainly introduced a keyword extraction algorithm using pagerank on Synonym. Firstly
In this paper an algorithm to generate document extracts is proposed. This extract is composed of the most significative sentences of the current document. These sentences are chosen by considering their similitude with a so-denominated virtual paragraph (VP). The VP is formed by the key words that are obtained by the four methods that use n-grams, employed in this research. The experiments are performed...
structured patterns in semistructured Web documents. A tag tree pattern is an edge labeled tree with ordered children and structured variables. An edge label of a tag tree pattern is a tag or a keyword in Web documents, or a wildcard for any string. Each variable, which matches any subtree, represents a field of a Web document
When we use a search engine in Internet, we often cannot retrieve a document we look for, due to the difficulty of finding adequate keywords. One of the ways to solve the problem is to search adequate keywords interacting with a user: a metasearch engine displays keywords and pages, a user evaluate them. Iterating the
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.