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Keyword extraction has been a very traditional topic in Natural Language Processing. However, most methods have been too complicated and slow to be applied in real applications, for example in web-based system. This paper proposes an approach which will complete some preparing works focusing on exploring the
In order for researchers in scientific and technological fields to find more proper information resources on Web, an auxiliary search structure is proposed, which is a class hierarchy of documents built based on the keywords of the documents. To cover the contents of the document properly, the keywords are extracted
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.