-
Dresel, R.; Hörnig, D.; Kaluza, H.; Peter, A.; Roßmann, A.; Sieber, W.: Evaluation deutscher Web-Suchwerkzeuge : Ein vergleichender Retrievaltest (2001)
0.04
0.042308852 = product of:
0.084617704 = sum of:
0.084617704 = sum of:
0.04587778 = weight(_text_:w in 261) [ClassicSimilarity], result of:
0.04587778 = score(doc=261,freq=2.0), product of:
0.13620423 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.035741583 = queryNorm
0.33683082 = fieldWeight in 261, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.0625 = fieldNorm(doc=261)
0.038739927 = weight(_text_:22 in 261) [ClassicSimilarity], result of:
0.038739927 = score(doc=261,freq=2.0), product of:
0.12516093 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.035741583 = 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)
- 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
-
Kluck, M.: ¬Eine deutschsprachige Testdatenbank für moderne Erschließungs- und Retrievalsysteme : German Indexing and Retrieval Testdatabase - GIRT (1996)
0.02
0.017204167 = product of:
0.034408335 = sum of:
0.034408335 = product of:
0.06881667 = sum of:
0.06881667 = weight(_text_:w in 5269) [ClassicSimilarity], result of:
0.06881667 = score(doc=5269,freq=2.0), product of:
0.13620423 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.035741583 = queryNorm
0.5052462 = fieldWeight in 5269, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.09375 = fieldNorm(doc=5269)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Die digitale Revolution: Deutscher Dokumentartag 1996, Neue Universität Heidelberg, 24.-26.9.1996. Hrsg.: W. Neubauer
-
Fuhr, N.; Niewelt, B.: ¬Ein Retrievaltest mit automatisch indexierten Dokumenten (1984)
0.02
0.016948719 = product of:
0.033897437 = sum of:
0.033897437 = product of:
0.067794874 = sum of:
0.067794874 = weight(_text_:22 in 262) [ClassicSimilarity], result of:
0.067794874 = score(doc=262,freq=2.0), product of:
0.12516093 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.035741583 = 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
-
Womser-Hacker, C.: Evaluierung im Information Retrieval (2013)
0.01
0.014336808 = product of:
0.028673615 = sum of:
0.028673615 = product of:
0.05734723 = sum of:
0.05734723 = weight(_text_:w in 728) [ClassicSimilarity], result of:
0.05734723 = score(doc=728,freq=2.0), product of:
0.13620423 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.035741583 = queryNorm
0.42103854 = fieldWeight in 728, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.078125 = fieldNorm(doc=728)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Grundlagen der praktischen Information und Dokumentation. Handbuch zur Einführung in die Informationswissenschaft und -praxis. 6., völlig neu gefaßte Ausgabe. Hrsg. von R. Kuhlen, W. Semar u. D. Strauch. Begründet von Klaus Laisiepen, Ernst Lutterbeck, Karl-Heinrich Meyer-Uhlenried
-
Sachse, E.; Liebig, M.; Gödert, W.: Automatische Indexierung unter Einbeziehung semantischer Relationen : Ergebnisse des Retrievaltests zum MILOS II-Projekt (1998)
0.01
0.010035764 = product of:
0.020071529 = sum of:
0.020071529 = product of:
0.040143058 = sum of:
0.040143058 = weight(_text_:w in 3577) [ClassicSimilarity], result of:
0.040143058 = score(doc=3577,freq=2.0), product of:
0.13620423 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.035741583 = queryNorm
0.29472697 = fieldWeight in 3577, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.0546875 = fieldNorm(doc=3577)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Becks, D.; Mandl, T.; Womser-Hacker, C.: Spezielle Anforderungen bei der Evaluierung von Patent-Retrieval-Systemen (2010)
0.01
0.010035764 = product of:
0.020071529 = sum of:
0.020071529 = product of:
0.040143058 = sum of:
0.040143058 = weight(_text_:w in 4667) [ClassicSimilarity], result of:
0.040143058 = score(doc=4667,freq=2.0), product of:
0.13620423 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.035741583 = queryNorm
0.29472697 = fieldWeight in 4667, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.0546875 = fieldNorm(doc=4667)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Imprint
- Boizenburg : VWH, Verl. W. Hülsbusch
-
Gödert, W.; Liebig, M.: Maschinelle Indexierung auf dem Prüfstand : Ergebnisse eines Retrievaltests zum MILOS II Projekt (1997)
0.01
0.010035764 = product of:
0.020071529 = sum of:
0.020071529 = product of:
0.040143058 = sum of:
0.040143058 = weight(_text_:w in 1174) [ClassicSimilarity], result of:
0.040143058 = score(doc=1174,freq=2.0), product of:
0.13620423 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.035741583 = queryNorm
0.29472697 = fieldWeight in 1174, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.0546875 = fieldNorm(doc=1174)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Kaizik, A.; Gödert, W.; Oßwald, A.: Evaluation von Subject Gateways des Internet (EJECT) : Projektbericht (2001)
0.01
0.008602084 = product of:
0.017204167 = sum of:
0.017204167 = product of:
0.034408335 = sum of:
0.034408335 = weight(_text_:w in 1476) [ClassicSimilarity], result of:
0.034408335 = score(doc=1476,freq=2.0), product of:
0.13620423 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.035741583 = queryNorm
0.2526231 = fieldWeight in 1476, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.046875 = fieldNorm(doc=1476)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Reichert, S.; Mayr, P.: Untersuchung von Relevanzeigenschaften in einem kontrollierten Eyetracking-Experiment (2012)
0.01
0.0072637363 = product of:
0.014527473 = sum of:
0.014527473 = product of:
0.029054945 = sum of:
0.029054945 = weight(_text_:22 in 328) [ClassicSimilarity], result of:
0.029054945 = score(doc=328,freq=2.0), product of:
0.12516093 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.035741583 = 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
-
Dzeyk, W.: Effektiv und nutzerfreundlich : Einsatz von semantischen Technologien und Usability-Methoden zur Verbesserung der medizinischen Literatursuche (2010)
0.01
0.005017882 = product of:
0.010035764 = sum of:
0.010035764 = product of:
0.020071529 = sum of:
0.020071529 = weight(_text_:w in 4416) [ClassicSimilarity], result of:
0.020071529 = score(doc=4416,freq=2.0), product of:
0.13620423 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.035741583 = queryNorm
0.14736348 = fieldWeight in 4416, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.02734375 = fieldNorm(doc=4416)
0.5 = coord(1/2)
0.5 = coord(1/2)