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3.4: Vector Space Model

Boolean retrieval is based on set operations with terms or attribute values represented by strings.

In the last chapter it was discussed what "terms" or attributes can look like.

This chapter introduces more flexible use of such terms by weighting their influence according to their importance.

ZUGANG3.4.1: The Model

ZUGANGAbb. 17: Vektor Space Model of Text Retrieval

ZUGANG3.4.2: Relation to Boolean Retrieval

ZUGANG3.4.3: Term Weighting

respectively the normalized version:

ZUGANG3.4.4: Relevance Feedback (Rocchio)

ZUGANG3.4.5: The SMART System

ZUGANG3.4.6: Similarity Measures


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