Slide 11 Text Categorization Slide 2 2 Assigning documents to a fixed set of categories. Applications: –Web pages Recommending Yahoo-like classification –Newsgroup Messages…

Slide 1 Aggressively responding to the #1 chronic childhood disease Slide 2 Singularly focused on eliminating children’s preventable suffering from tooth decay America’s…

Vector Space Models * * Statistical Models A document is typically represented by a bag of words (unordered words with frequencies). Bag = set that allows multiple occurrences…

Information Retrieval and Web Search IR models: Vectorial Model Instructor: Rada Mihalcea Class web page: http://www.cs.unt.edu/~rada/CSCE5300 [Note: Some slides in this…

Information Retrieval Information Retrieval Systems Document IR System key word query document Keyword Search In full text retrieval, all the words in each document are considered…