-
Fuhr, N.; Niewelt, B.: ¬Ein Retrievaltest mit automatisch indexierten Dokumenten (1984)
0.02
0.022839602 = product of:
0.045679204 = sum of:
0.045679204 = product of:
0.09135841 = sum of:
0.09135841 = weight(_text_:22 in 262) [ClassicSimilarity], result of:
0.09135841 = score(doc=262,freq=2.0), product of:
0.16866325 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048164323 = queryNorm
0.5416616 = fieldWeight in 262, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.109375 = fieldNorm(doc=262)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 20.10.2000 12:22:23
-
Dresel, R.; Hörnig, D.; Kaluza, H.; Peter, A.; Roßmann, A.; Sieber, W.: Evaluation deutscher Web-Suchwerkzeuge : Ein vergleichender Retrievaltest (2001)
0.01
0.013051202 = product of:
0.026102403 = sum of:
0.026102403 = product of:
0.052204806 = sum of:
0.052204806 = weight(_text_:22 in 261) [ClassicSimilarity], result of:
0.052204806 = score(doc=261,freq=2.0), product of:
0.16866325 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048164323 = queryNorm
0.30952093 = fieldWeight in 261, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0625 = fieldNorm(doc=261)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- Die deutschen Suchmaschinen, Abacho, Acoon, Fireball und Lycos sowie die Web-Kataloge Web.de und Yahoo! werden einem Qualitätstest nach relativem Recall, Precision und Availability unterzogen. Die Methoden der Retrievaltests werden vorgestellt. Im Durchschnitt werden bei einem Cut-Off-Wert von 25 ein Recall von rund 22%, eine Precision von knapp 19% und eine Verfügbarkeit von 24% erreicht
-
Reichert, S.; Mayr, P.: Untersuchung von Relevanzeigenschaften in einem kontrollierten Eyetracking-Experiment (2012)
0.01
0.0097884005 = product of:
0.019576801 = sum of:
0.019576801 = product of:
0.039153602 = sum of:
0.039153602 = weight(_text_:22 in 328) [ClassicSimilarity], result of:
0.039153602 = score(doc=328,freq=2.0), product of:
0.16866325 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048164323 = queryNorm
0.23214069 = fieldWeight in 328, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=328)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 7.2012 19:25:54