Search (42 results, page 1 of 3)

  • × theme_ss:"Retrievalstudien"
  1. Borlund, P.: Evaluation of interactive information retrieval systems (2000) 0.03
    0.030801376 = product of:
      0.09240413 = sum of:
        0.09240413 = product of:
          0.18480825 = sum of:
            0.18480825 = weight(_text_:informationssysteme in 2556) [ClassicSimilarity], result of:
              0.18480825 = score(doc=2556,freq=4.0), product of:
                0.26235193 = queryWeight, product of:
                  5.6354303 = idf(docFreq=428, maxDocs=44218)
                  0.046554018 = queryNorm
                0.7044288 = fieldWeight in 2556, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  5.6354303 = idf(docFreq=428, maxDocs=44218)
                  0.0625 = fieldNorm(doc=2556)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    BK
    06.74 / Informationssysteme
    Classification
    06.74 / Informationssysteme
  2. Harman, D.K.: ¬The TREC conferences (1995) 0.03
    0.027224828 = product of:
      0.08167448 = sum of:
        0.08167448 = product of:
          0.16334896 = sum of:
            0.16334896 = weight(_text_:informationssysteme in 1932) [ClassicSimilarity], result of:
              0.16334896 = score(doc=1932,freq=2.0), product of:
                0.26235193 = queryWeight, product of:
                  5.6354303 = idf(docFreq=428, maxDocs=44218)
                  0.046554018 = queryNorm
                0.622633 = fieldWeight in 1932, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  5.6354303 = idf(docFreq=428, maxDocs=44218)
                  0.078125 = fieldNorm(doc=1932)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Source
    Hypertext - Information Retrieval - Multimedia: HIM '95. Synergieeffekte elektronischer Informationssysteme. Hrsg.: R. Kuhlen u. M. Rittberger
  3. Petras, V.; Womser-Hacker, C.: Evaluation im Information Retrieval (2023) 0.02
    0.016334895 = product of:
      0.049004685 = sum of:
        0.049004685 = product of:
          0.09800937 = sum of:
            0.09800937 = weight(_text_:informationssysteme in 808) [ClassicSimilarity], result of:
              0.09800937 = score(doc=808,freq=2.0), product of:
                0.26235193 = queryWeight, product of:
                  5.6354303 = idf(docFreq=428, maxDocs=44218)
                  0.046554018 = queryNorm
                0.37357977 = fieldWeight in 808, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  5.6354303 = idf(docFreq=428, maxDocs=44218)
                  0.046875 = fieldNorm(doc=808)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Abstract
    Das Ziel einer Evaluation ist die Überprüfung, ob bzw. in welchem Ausmaß ein Informationssystem die an das System gestellten Anforderungen erfüllt. Informationssysteme können aus verschiedenen Perspektiven evaluiert werden. Für eine ganzheitliche Evaluation (als Synonym wird auch Evaluierung benutzt), die unterschiedliche Qualitätsaspekte betrachtet (z. B. wie gut ein System relevante Dokumente rankt, wie schnell ein System die Suche durchführt, wie die Ergebnispräsentation gestaltet ist oder wie Suchende durch das System geführt werden) und die Erfüllung mehrerer Anforderungen überprüft, empfiehlt es sich, sowohl eine perspektivische als auch methodische Triangulation (d. h. der Einsatz von mehreren Ansätzen zur Qualitätsüberprüfung) vorzunehmen. Im Information Retrieval (IR) konzentriert sich die Evaluation auf die Qualitätseinschätzung der Suchfunktion eines Information-Retrieval-Systems (IRS), wobei oft zwischen systemzentrierter und nutzerzentrierter Evaluation unterschieden wird. Dieses Kapitel setzt den Fokus auf die systemzentrierte Evaluation, während andere Kapitel dieses Handbuchs andere Evaluationsansätze diskutieren (s. Kapitel C 4 Interaktives Information Retrieval, C 7 Cross-Language Information Retrieval und D 1 Information Behavior).
  4. Fuhr, N.; Niewelt, B.: ¬Ein Retrievaltest mit automatisch indexierten Dokumenten (1984) 0.01
    0.014717328 = product of:
      0.044151984 = sum of:
        0.044151984 = product of:
          0.08830397 = sum of:
            0.08830397 = weight(_text_:22 in 262) [ClassicSimilarity], result of:
              0.08830397 = score(doc=262,freq=2.0), product of:
                0.16302423 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046554018 = 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)
      0.33333334 = coord(1/3)
    
    Date
    20.10.2000 12:22:23
  5. Tomaiuolo, N.G.; Parker, J.: Maximizing relevant retrieval : keyword and natural language searching (1998) 0.01
    0.014717328 = product of:
      0.044151984 = sum of:
        0.044151984 = product of:
          0.08830397 = sum of:
            0.08830397 = weight(_text_:22 in 6418) [ClassicSimilarity], result of:
              0.08830397 = score(doc=6418,freq=2.0), product of:
                0.16302423 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046554018 = queryNorm
                0.5416616 = fieldWeight in 6418, 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=6418)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Source
    Online. 22(1998) no.6, S.57-58
  6. Voorhees, E.M.; Harman, D.: Overview of the Sixth Text REtrieval Conference (TREC-6) (2000) 0.01
    0.014717328 = product of:
      0.044151984 = sum of:
        0.044151984 = product of:
          0.08830397 = sum of:
            0.08830397 = weight(_text_:22 in 6438) [ClassicSimilarity], result of:
              0.08830397 = score(doc=6438,freq=2.0), product of:
                0.16302423 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046554018 = queryNorm
                0.5416616 = fieldWeight in 6438, 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=6438)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    11. 8.2001 16:22:19
  7. Dalrymple, P.W.: Retrieval by reformulation in two library catalogs : toward a cognitive model of searching behavior (1990) 0.01
    0.014717328 = product of:
      0.044151984 = sum of:
        0.044151984 = product of:
          0.08830397 = sum of:
            0.08830397 = weight(_text_:22 in 5089) [ClassicSimilarity], result of:
              0.08830397 = score(doc=5089,freq=2.0), product of:
                0.16302423 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046554018 = queryNorm
                0.5416616 = fieldWeight in 5089, 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=5089)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    22. 7.2006 18:43:54
  8. Sünkler, S.: Prototypische Entwicklung einer Software für die Erfassung und Analyse explorativer Suchen in Verbindung mit Tests zur Retrievaleffektivität (2012) 0.01
    0.013612414 = product of:
      0.04083724 = sum of:
        0.04083724 = product of:
          0.08167448 = sum of:
            0.08167448 = weight(_text_:informationssysteme in 479) [ClassicSimilarity], result of:
              0.08167448 = score(doc=479,freq=2.0), product of:
                0.26235193 = queryWeight, product of:
                  5.6354303 = idf(docFreq=428, maxDocs=44218)
                  0.046554018 = queryNorm
                0.3113165 = fieldWeight in 479, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  5.6354303 = idf(docFreq=428, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=479)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Abstract
    Gegenstand dieser Arbeit ist die Entwicklung eines funktionalen Prototyps einer Webanwendung für die Verknüpfung der Evaluierung von explorativen Suchen in Verbindung mit der Durchführung klassisches Retrievaltests. Als Grundlage für die Programmierung des Prototyps werden benutzerorientierte und systemorientierte Evalulierungsmethoden für Suchmaschinen analysiert und in einem theoretischen Modell zur Untersuchung von Informationssysteme und Suchmaschinen kombiniert. Bei der Gestaltung des Modells und des Prototyps wird gezeigt, wie sich aufgezeichnete Aktionsdaten praktisch für die Suchmaschinenevaluierung verwenden lassen, um auf der einen Seite eine Datengrundlage für Retrievaltests zu gewinnen und andererseits, um für die Auswertung von Relevanzbewertungen auch das implizierte Feedback durch Handlungen der Anwender zu berücksichtigen. Retrievaltests sind das gängige und erprobte Mittel zur Messung der Retrievaleffektiviät von Informationssystemen und Suchmaschinen, verzichten aber auf eine Berücksichtigung des tatsächlichen Nutzerverhaltens. Eine Methode für die Erfassung der Interaktionen von Suchmaschinennutzern sind protokollbasierte Tests, mit denen sich Logdateien über Benutzer einer Anwendung generieren lassen. Die im Rahmen der Arbeit umgesetzte Software bietet einen Ansatz, Retrievaltests auf Basis protokollierter Nutzerdaten in Verbindung mit kontrollierten Suchaufgaben, durchzuführen. Das Ergebnis dieser Arbeit ist ein fertiger funktionaler Prototyp, der in seinem Umfang bereits innerhalb von Suchmaschinenstudien nutzbar ist.
  9. Lohmann, H.: KASCADE: Dokumentanreicherung und automatische Inhaltserschließung : Projektbericht und Ergebnisse des Retrievaltests (2000) 0.01
    0.0134756025 = product of:
      0.040426806 = sum of:
        0.040426806 = product of:
          0.08085361 = sum of:
            0.08085361 = weight(_text_:informationssysteme in 494) [ClassicSimilarity], result of:
              0.08085361 = score(doc=494,freq=4.0), product of:
                0.26235193 = queryWeight, product of:
                  5.6354303 = idf(docFreq=428, maxDocs=44218)
                  0.046554018 = queryNorm
                0.3081876 = fieldWeight in 494, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  5.6354303 = idf(docFreq=428, maxDocs=44218)
                  0.02734375 = fieldNorm(doc=494)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    BK
    06.74 Informationssysteme
    Classification
    06.74 Informationssysteme
  10. Allan, J.; Callan, J.P.; Croft, W.B.; Ballesteros, L.; Broglio, J.; Xu, J.; Shu, H.: INQUERY at TREC-5 (1997) 0.01
    0.010512378 = product of:
      0.031537134 = sum of:
        0.031537134 = product of:
          0.06307427 = sum of:
            0.06307427 = weight(_text_:22 in 3103) [ClassicSimilarity], result of:
              0.06307427 = score(doc=3103,freq=2.0), product of:
                0.16302423 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046554018 = queryNorm
                0.38690117 = fieldWeight in 3103, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.078125 = fieldNorm(doc=3103)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    27. 2.1999 20:55:22
  11. Ng, K.B.; Loewenstern, D.; Basu, C.; Hirsh, H.; Kantor, P.B.: Data fusion of machine-learning methods for the TREC5 routing tak (and other work) (1997) 0.01
    0.010512378 = product of:
      0.031537134 = sum of:
        0.031537134 = product of:
          0.06307427 = sum of:
            0.06307427 = weight(_text_:22 in 3107) [ClassicSimilarity], result of:
              0.06307427 = score(doc=3107,freq=2.0), product of:
                0.16302423 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046554018 = queryNorm
                0.38690117 = fieldWeight in 3107, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.078125 = fieldNorm(doc=3107)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    27. 2.1999 20:59:22
  12. Saracevic, T.: On a method for studying the structure and nature of requests in information retrieval (1983) 0.01
    0.010512378 = product of:
      0.031537134 = sum of:
        0.031537134 = product of:
          0.06307427 = sum of:
            0.06307427 = weight(_text_:22 in 2417) [ClassicSimilarity], result of:
              0.06307427 = score(doc=2417,freq=2.0), product of:
                0.16302423 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046554018 = queryNorm
                0.38690117 = fieldWeight in 2417, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.078125 = fieldNorm(doc=2417)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Pages
    S.22-25
  13. TREC: experiment and evaluation in information retrieval (2005) 0.01
    0.009625429 = product of:
      0.028876288 = sum of:
        0.028876288 = product of:
          0.057752576 = sum of:
            0.057752576 = weight(_text_:informationssysteme in 636) [ClassicSimilarity], result of:
              0.057752576 = score(doc=636,freq=4.0), product of:
                0.26235193 = queryWeight, product of:
                  5.6354303 = idf(docFreq=428, maxDocs=44218)
                  0.046554018 = queryNorm
                0.22013399 = fieldWeight in 636, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  5.6354303 = idf(docFreq=428, maxDocs=44218)
                  0.01953125 = fieldNorm(doc=636)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    BK
    06.74 / Informationssysteme
    Classification
    06.74 / Informationssysteme
  14. Rijsbergen, C.J. van: ¬A test for the separation of relevant and non-relevant documents in experimental retrieval collections (1973) 0.01
    0.008409902 = product of:
      0.025229705 = sum of:
        0.025229705 = product of:
          0.05045941 = sum of:
            0.05045941 = weight(_text_:22 in 5002) [ClassicSimilarity], result of:
              0.05045941 = score(doc=5002,freq=2.0), product of:
                0.16302423 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046554018 = queryNorm
                0.30952093 = fieldWeight in 5002, 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=5002)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    19. 3.1996 11:22:12
  15. Sanderson, M.: ¬The Reuters test collection (1996) 0.01
    0.008409902 = product of:
      0.025229705 = sum of:
        0.025229705 = product of:
          0.05045941 = sum of:
            0.05045941 = weight(_text_:22 in 6971) [ClassicSimilarity], result of:
              0.05045941 = score(doc=6971,freq=2.0), product of:
                0.16302423 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046554018 = queryNorm
                0.30952093 = fieldWeight in 6971, 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=6971)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Source
    Information retrieval: new systems and current research. Proceedings of the 16th Research Colloquium of the British Computer Society Information Retrieval Specialist Group, Drymen, Scotland, 22-23 Mar 94. Ed.: R. Leon
  16. Lespinasse, K.: TREC: une conference pour l'evaluation des systemes de recherche d'information (1997) 0.01
    0.008409902 = product of:
      0.025229705 = sum of:
        0.025229705 = product of:
          0.05045941 = sum of:
            0.05045941 = weight(_text_:22 in 744) [ClassicSimilarity], result of:
              0.05045941 = score(doc=744,freq=2.0), product of:
                0.16302423 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046554018 = queryNorm
                0.30952093 = fieldWeight in 744, 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=744)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    1. 8.1996 22:01:00
  17. ¬The Fifth Text Retrieval Conference (TREC-5) (1997) 0.01
    0.008409902 = product of:
      0.025229705 = sum of:
        0.025229705 = product of:
          0.05045941 = sum of:
            0.05045941 = weight(_text_:22 in 3087) [ClassicSimilarity], result of:
              0.05045941 = score(doc=3087,freq=2.0), product of:
                0.16302423 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046554018 = queryNorm
                0.30952093 = fieldWeight in 3087, 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=3087)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Abstract
    Proceedings of the 5th TREC-confrerence held in Gaithersburgh, Maryland, Nov 20-22, 1996. Aim of the conference was discussion on retrieval techniques for large test collections. Different research groups used different techniques, such as automated thesauri, term weighting, natural language techniques, relevance feedback and advanced pattern matching, for information retrieval from the same large database. This procedure makes it possible to compare the results. The proceedings include papers, tables of the system results, and brief system descriptions including timing and storage information
  18. Pemberton, J.K.; Ojala, M.; Garman, N.: Head to head : searching the Web versus traditional services (1998) 0.01
    0.008409902 = product of:
      0.025229705 = sum of:
        0.025229705 = product of:
          0.05045941 = sum of:
            0.05045941 = weight(_text_:22 in 3572) [ClassicSimilarity], result of:
              0.05045941 = score(doc=3572,freq=2.0), product of:
                0.16302423 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046554018 = queryNorm
                0.30952093 = fieldWeight in 3572, 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=3572)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Source
    Online. 22(1998) no.3, S.24-26,28
  19. Dresel, R.; Hörnig, D.; Kaluza, H.; Peter, A.; Roßmann, A.; Sieber, W.: Evaluation deutscher Web-Suchwerkzeuge : Ein vergleichender Retrievaltest (2001) 0.01
    0.008409902 = product of:
      0.025229705 = sum of:
        0.025229705 = product of:
          0.05045941 = sum of:
            0.05045941 = weight(_text_:22 in 261) [ClassicSimilarity], result of:
              0.05045941 = score(doc=261,freq=2.0), product of:
                0.16302423 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046554018 = 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)
      0.33333334 = coord(1/3)
    
    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
  20. Ellis, D.: Progress and problems in information retrieval (1996) 0.01
    0.008409902 = product of:
      0.025229705 = sum of:
        0.025229705 = product of:
          0.05045941 = sum of:
            0.05045941 = weight(_text_:22 in 789) [ClassicSimilarity], result of:
              0.05045941 = score(doc=789,freq=2.0), product of:
                0.16302423 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046554018 = queryNorm
                0.30952093 = fieldWeight in 789, 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=789)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    26. 7.2002 20:22:46

Languages

  • e 34
  • d 6
  • f 1
  • More… Less…

Types

  • a 34
  • m 5
  • s 4
  • el 1
  • x 1
  • More… Less…