计算机科学与技术学院Relevance· Relevance is a subjective judgment and mayinclude:-Being on the proper subject.-Being timely (recent information)- Being authoritative (from a trusted source)- Satisfying the goals of the user and his/her intended useoftheinformation(informationneed)武铺理工大学
Relevance • Relevance is a subjective judgment and may include: - Being on the proper subject. - Being timely (recent information). - Being authoritative (from a trusted source). - Satisfying the goals of the user and his/her intended use of the information (information need)
计穿机科学与技术学院Keyword Search? Simplest notion of relevance is that the query stringappears verbatim in the document.: Slightly less strict notion is that the words in thequery appear frequently in the document, in anyorder (bag of words)武铺理工大学
Keyword Search • Simplest notion of relevance is that the query string appears verbatim in the document. • Slightly less strict notion is that the words in the query appear frequently in the document, in any order (bag of words)