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Two keyword-extraction ways are usually used, one is simply using the information from exactly single word like word frequency and TF.IDF, the other is based on the relationship between words. The relationship is usually described as word similarity which derives from a corpus (WordNet, HowNet) or man-made thesaurus
We describe the implementation of a scalable architecture for audio indexing, in which topic-dependent language models (LMs) were trained on Web pages categorized in a portal Web directory and stored on distributed servers. Input speech was decoded in parallel on servers that each had an individual topic LM. From 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.