Term Frequency Ranking Function
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A Term Frequency Ranking Function is a Ranking Function that is based on Term Frequency of the Members.
References
2009
- (Wikipedia, 2009) ⇒ http://en.wikipedia.org/wiki/TF-IDF
- … Variations of the tf–idf weighting scheme are often used by search engines as a central tool in scoring and ranking a document's relevance given a user query. One of the simplest ranking functions is computed by summing the tf-idf for each query term; many more sophisticated ranking functions are variants of this simple model.
- http://en.wikipedia.org/wiki/Ranking_function
- Some very simple ranking functions include:
- The constant ranking function assigning the same score to all documents.
- The term frequency ranking function counting the number of times that each query term occurs in the document, then summing these.
- The tf-idf ranking function computing the product of the term frequency and inverse document frequency for each query term, then multiplying these.
- Some very simple ranking functions include: