IRS13
Scientific Report No. IRS-13 Information Storage and Retrieval
Table of Contents
table of contents
Harvard University
Gerard Salton
Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government.
TABLL iF CONTENTS (continued)
Page
II. continued
A) Single Number Measures .
B) Varying Cut-off Performance Curves
C) Comparison of Single Number and Curve
[OCRerr]. The Construction of Average Precision Versus
Recall Curves . . . e .
A) Averaging Techniques . .
B) Cut-off Techniques e . .
C) Extrapolation Techniques for Request
Generality Variations *
D) Extrapolation Techniques for Evaluation of
Cluster Searching * .
5. Measures for Varying Relevance Evaluation
6. Measures for Varying Generality Comparisons
7. Techniques for Dissimilar System Comparisons and
Operational Testing . . .
8. The Comparison of Specific and General Requests
the Viewpoints of the "higher precision11 and
"high recall" user . .
* 11-6
* 11-7
Measures 11-13
* . 11-18
* . 11-18
* * 11-21
and
11-31
* 11-140
11-143
* 11-146
11-51
11-53
9. The Presentation of Data as Individual Request Merit 11-63
References e . . e . . * . 11-67
III. KEEN, E. M.
"Search Matching Functions"
1. Introduction . . . . . e e 111-1
2. Matching Procedures used in Manual, Mechanized
and Automated Systems . . . . 111-1
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