Searchers, the Subjects they Search, and Sufficiency

Table of Contents

Searchers, the Subjects they Search, and Sufficiency

Presentation Outline

Significance

Web Searchers

How do they search?

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General Statistics

Three Levels of Analysis

Three Levels of Analysis

Term Frequency

Term Categories

Log Plot of Rank -Frequency

Change in Terms Statistics

Log Plot of Rank -Frequency

Three Levels of Analysis

Length of Queries

Boolean Queries

Modifiers

Failure Analysis

Failure Analysis

Three Levels of Analysis

Types of Queries

Queries Per User

Change in Query Length

Pages Viewed Per User

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What does the study tell us?

Optimal Information Retrieval

Optimal Sufficiency

User Modeling

User Modeling

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Email: jjansen@acm.org

Home Page: http://jjansen.tripod.com/

Other information:
When using data from this presentation, please reference the Webnet 98 paper, "Searchers, the Subjects they Search, and Sufficiency: A Study of a Large Sample of Excite Users" by MAJ B.J. Jansen, A. Spink, and T. Saracevic