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Precision and Recall
1.
Recall Precision M. Sc. Johannes
Schildgen 2016-06-09 schildgen@cs.uni-kl.de and
2.
Hariboogle Search
3.
Hariboogle Color-Rado Search
4.
Hariboogle Search Color-Rado 42 Results in
0,002 Seconds ? ?
5.
Should be found Was found
6.
Relevant Found
7.
Relevant Found
8.
Relevant Found 5 141 4246
9.
Relevant Found 5 141 Precision: |𝑹∩𝑭| |𝑭| 4246 = 𝟒𝟏 𝟒𝟐 =
0,98 = 98% „How many % of the found items are relevant?“
10.
Hariboogle Search Precision: |𝑹∩𝑭| |𝑭| = 1 Perfect!
11.
Hariboogle Color-Rado Suche Precision: |𝑹∩𝑭| |𝑭| = 1 Perfect!
12.
Hariboogle Suche
13.
Precision: |𝑹∩𝑭| |𝑭| = 1 Perfect!
No rubbish Only a few results 1 result
14.
Improve Precision • Find
less rubbish (=> Relevance Feedback) Precision: |𝑹∩𝑭| |𝑭| Hariboogle Search Color-Rado 42 Results in 0,002 Seconds
15.
Improve Precision • Find
less rubbish (=> Relevance Feedback) Precision: |𝑹∩𝑭| |𝑭| Hariboogle Search Color-Rado 42 Results in 0,002 Seconds
16.
Relevant Found 5 141 Recall: |𝑹∩𝑭| |𝑹| 4246 = 𝟒𝟏 𝟒𝟔 =
0,89 = 89% „How much % of the relevant items were found?“
17.
Hariboogle Search Recall: |𝑹∩𝑭| |𝑹| = 1 Perfect!
18.
Hariboogle Color-Rado Search Recall: |𝑹∩𝑭| |𝑹| = 1 Perfect!
19.
Hariboogle Search ? ? ? ? ? ? ? ? ? ? ? ? ?
20.
Recall: |𝑹∩𝑭| |𝑹| = 1 Perfect!
All relevant items were found A lot of rubbish 803214523509235*1012 Billion results
21.
Improve Recall • Find
more relevant items (easier said than done) Recall: |𝑹∩𝑭| |𝑹|
22.
Conclusion Precision: |𝑹∩𝑭| |𝑭| Relevante Gefundene
23.
Conclusion Precision: |𝑹∩𝑭| |𝑭| Recall: |𝑹∩𝑭| |𝑹| Relevante Gefundene
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