Search (16 results, page 1 of 1)

Lewandowski, D.: Suchmaschinen (2013) 0.02

0.020079086 = product of:
  0.0702768 = sum of:
    0.028375983 = product of:
      0.056751966 = sum of:
        0.056751966 = weight(_text_:w in 731) [ClassicSimilarity], result of:
          0.056751966 = score(doc=731,freq=2.0), product of:
            0.13479044 = queryWeight, product of:
              3.8108058 = idf(docFreq=2659, maxDocs=44218)
              0.035370585 = queryNorm
            0.42103854 = fieldWeight in 731, 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=731)
      0.5 = coord(1/2)
    0.041900817 = weight(_text_:u in 731) [ClassicSimilarity], result of:
      0.041900817 = score(doc=731,freq=2.0), product of:
        0.11581901 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.035370585 = queryNorm
        0.3617784 = fieldWeight in 731, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.078125 = fieldNorm(doc=731)
  0.2857143 = coord(2/7)

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

Lewandowski, D.; Spree, U.: Ranking of Wikipedia articles in search engines revisited : fair ranking for reasonable quality? (2011) 0.01

0.00940885 = product of:
  0.032930974 = sum of:
    0.020950409 = weight(_text_:u in 444) [ClassicSimilarity], result of:
      0.020950409 = score(doc=444,freq=2.0), product of:
        0.11581901 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.035370585 = queryNorm
        0.1808892 = fieldWeight in 444, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0390625 = fieldNorm(doc=444)
    0.011980565 = product of:
      0.02396113 = sum of:
        0.02396113 = weight(_text_:22 in 444) [ClassicSimilarity], result of:
          0.02396113 = score(doc=444,freq=2.0), product of:
            0.12386176 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.035370585 = queryNorm
            0.19345059 = fieldWeight in 444, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=444)
      0.5 = coord(1/2)
  0.2857143 = coord(2/7)

Date: 30. 9.2012 19:27:22

Lewandowski, D.; Spree, U.: ¬Die Forschungsgruppe Search Studies an der HAW Hamburg (2019) 0.01

0.007182997 = product of:
  0.050280977 = sum of:
    0.050280977 = weight(_text_:u in 5021) [ClassicSimilarity], result of:
      0.050280977 = score(doc=5021,freq=2.0), product of:
        0.11581901 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.035370585 = queryNorm
        0.43413407 = fieldWeight in 5021, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.09375 = fieldNorm(doc=5021)
  0.14285715 = coord(1/7)

Lewandowski, D.; Haustein, S.: What does the German-language information science community cite? (2015) 0.01

0.0059858314 = product of:
  0.041900817 = sum of:
    0.041900817 = weight(_text_:u in 2987) [ClassicSimilarity], result of:
      0.041900817 = score(doc=2987,freq=2.0), product of:
        0.11581901 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.035370585 = queryNorm
        0.3617784 = fieldWeight in 2987, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.078125 = fieldNorm(doc=2987)
  0.14285715 = coord(1/7)

Source: Re:inventing information science in the networked society: Proceedings of the 14th International Symposium on Information Science, Zadar/Croatia, 19th-21st May 2015. Eds.: F. Pehar, C. Schloegl u. C. Wolff

Lewandowski, D.: Perspektiven eines Open Web Index (2016) 0.00

0.00394564 = product of:
  0.027619477 = sum of:
    0.027619477 = weight(_text_:j in 2935) [ClassicSimilarity], result of:
      0.027619477 = score(doc=2935,freq=2.0), product of:
        0.11238991 = queryWeight, product of:
          3.1774964 = idf(docFreq=5010, maxDocs=44218)
          0.035370585 = queryNorm
        0.24574696 = fieldWeight in 2935, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1774964 = idf(docFreq=5010, maxDocs=44218)
          0.0546875 = fieldNorm(doc=2935)
  0.14285715 = coord(1/7)

Content: Vgl.: http://www.degruyter.com/view/j/iwp.2016.67.issue-1/iwp-2016-0020/iwp-2016-0020.xml?format=INT.

Sundin, O.; Lewandowski, D.; Haider, J.: Whose relevance? : Web search engines as multisided relevance machines (2022) 0.00

0.00394564 = product of:
  0.027619477 = sum of:
    0.027619477 = weight(_text_:j in 542) [ClassicSimilarity], result of:
      0.027619477 = score(doc=542,freq=2.0), product of:
        0.11238991 = queryWeight, product of:
          3.1774964 = idf(docFreq=5010, maxDocs=44218)
          0.035370585 = queryNorm
        0.24574696 = fieldWeight in 542, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1774964 = idf(docFreq=5010, maxDocs=44218)
          0.0546875 = fieldNorm(doc=542)
  0.14285715 = coord(1/7)

Lewandowski, D.: Mit welchen Kennzahlen lässt sich die Qualität von Suchmaschinen messen? (2007) 0.00

0.0035914986 = product of:
  0.025140489 = sum of:
    0.025140489 = weight(_text_:u in 378) [ClassicSimilarity], result of:
      0.025140489 = score(doc=378,freq=2.0), product of:
        0.11581901 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.035370585 = queryNorm
        0.21706703 = fieldWeight in 378, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.046875 = fieldNorm(doc=378)
  0.14285715 = coord(1/7)

Source: Macht der Suchmaschinen: The Power of Search Engines. Hrsg.: Machill, M. u. M. Beiler

Lewandowski, D.; Sünkler, S.; Kerkmann, F.: Are ads on Google search engine results pages labeled clearly enough? : the influence of knowledge on search ads on users' selection behaviour (2017) 0.00

0.0029929157 = product of:
  0.020950409 = sum of:
    0.020950409 = weight(_text_:u in 3567) [ClassicSimilarity], result of:
      0.020950409 = score(doc=3567,freq=2.0), product of:
        0.11581901 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.035370585 = queryNorm
        0.1808892 = fieldWeight in 3567, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0390625 = fieldNorm(doc=3567)
  0.14285715 = coord(1/7)

Source: Everything changes, everything stays the same? - Understanding information spaces : Proceedings of the 15th International Symposium of Information Science (ISI 2017), Berlin/Germany, 13th - 15th March 2017. Eds.: M. Gäde, V. Trkulja u. V. Petras

Lewandowski, D.; Drechsler, J.; Mach, S. von: Deriving query intents from web search engine queries (2012) 0.00

0.002818314 = product of:
  0.019728197 = sum of:
    0.019728197 = weight(_text_:j in 385) [ClassicSimilarity], result of:
      0.019728197 = score(doc=385,freq=2.0), product of:
        0.11238991 = queryWeight, product of:
          3.1774964 = idf(docFreq=5010, maxDocs=44218)
          0.035370585 = queryNorm
        0.17553353 = fieldWeight in 385, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1774964 = idf(docFreq=5010, maxDocs=44218)
          0.0390625 = fieldNorm(doc=385)
  0.14285715 = coord(1/7)

Lewandowski, D.: Alles nur noch Google? : Entwicklungen im Bereich der WWW-Suchmaschinen (2002) 0.00

0.002738415 = product of:
  0.019168904 = sum of:
    0.019168904 = product of:
      0.038337808 = sum of:
        0.038337808 = weight(_text_:22 in 997) [ClassicSimilarity], result of:
          0.038337808 = score(doc=997,freq=2.0), product of:
            0.12386176 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.035370585 = queryNorm
            0.30952093 = fieldWeight in 997, 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=997)
      0.5 = coord(1/2)
  0.14285715 = coord(1/7)

Date: 29. 9.2002 18:49:22

Lewandowski, D.: Abfragesprachen und erweiterte Funktionen von WWW-Suchmaschinen (2004) 0.00

0.002738415 = product of:
  0.019168904 = sum of:
    0.019168904 = product of:
      0.038337808 = sum of:
        0.038337808 = weight(_text_:22 in 2314) [ClassicSimilarity], result of:
          0.038337808 = score(doc=2314,freq=2.0), product of:
            0.12386176 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.035370585 = queryNorm
            0.30952093 = fieldWeight in 2314, 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=2314)
      0.5 = coord(1/2)
  0.14285715 = coord(1/7)

Date: 28.11.2004 13:11:22

Lewandowski, D.: Query understanding (2011) 0.00

0.002738415 = product of:
  0.019168904 = sum of:
    0.019168904 = product of:
      0.038337808 = sum of:
        0.038337808 = weight(_text_:22 in 344) [ClassicSimilarity], result of:
          0.038337808 = score(doc=344,freq=2.0), product of:
            0.12386176 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.035370585 = queryNorm
            0.30952093 = fieldWeight in 344, 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=344)
      0.5 = coord(1/2)
  0.14285715 = coord(1/7)

Date: 18. 9.2018 18:22:18

Lewandowski, D.: ¬Die Macht der Suchmaschinen und ihr Einfluss auf unsere Entscheidungen (2014) 0.00

0.0020538112 = product of:
  0.014376678 = sum of:
    0.014376678 = product of:
      0.028753355 = sum of:
        0.028753355 = weight(_text_:22 in 1491) [ClassicSimilarity], result of:
          0.028753355 = score(doc=1491,freq=2.0), product of:
            0.12386176 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.035370585 = queryNorm
            0.23214069 = fieldWeight in 1491, 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=1491)
      0.5 = coord(1/2)
  0.14285715 = coord(1/7)

Date: 22. 9.2014 18:54:11

Lewandowski, D.; Sünkler, S.: What does Google recommend when you want to compare insurance offerings? (2019) 0.00

0.0017115094 = product of:
  0.011980565 = sum of:
    0.011980565 = product of:
      0.02396113 = sum of:
        0.02396113 = weight(_text_:22 in 5288) [ClassicSimilarity], result of:
          0.02396113 = score(doc=5288,freq=2.0), product of:
            0.12386176 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.035370585 = queryNorm
            0.19345059 = fieldWeight in 5288, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5288)
      0.5 = coord(1/2)
  0.14285715 = coord(1/7)

Date: 20. 1.2015 18:30:22

Lewandowski, D.: ¬Die Informationswissenschaft hat ein strukturelles, kein inhaltliches Problem : Ein Sechs-Punkte-Programm, um aus dem Status eines kleinen Faches herauszukommen (2019) 0.00
```
0.0016214849 = product of:
  0.011350393 = sum of:
    0.011350393 = product of:
      0.022700787 = sum of:
        0.022700787 = weight(_text_:w in 5666) [ClassicSimilarity], result of:
          0.022700787 = score(doc=5666,freq=2.0), product of:
            0.13479044 = queryWeight, product of:
              3.8108058 = idf(docFreq=2659, maxDocs=44218)
              0.035370585 = queryNorm
            0.16841541 = fieldWeight in 5666, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.8108058 = idf(docFreq=2659, maxDocs=44218)
              0.03125 = fieldNorm(doc=5666)
      0.5 = coord(1/2)
  0.14285715 = coord(1/7)
```
Content

Vgl. auch die Stellungnahme von W. Bredemeier in: Open Password. Nr.676 vom 10.12.2019 u.d.T.: Fehlende Theorie und fehlender Bezugsrahmen auch bei "Human Recorded Information": Fahrlässige Aufgabe des einzigen Alleinstellungsmerkmals, den die Disziplin von vornherein hatte, Die Informationswissenschaft als Hügellandschaft mit "Stand-alone-USPs" [https://www.password-online.de/?wysija-page=1&controller=email&action=view&email_id=833&wysijap=subscriptions&user_id=1045]. Vgl. auch den Bericht über die Berliner Tagung von Stefan Hauff-Hartwig in: Bibliotheksdienst 54(2020) H.1, S.27- . Vgl. auch die Erwiderung: Jörs, B.: Wider eine Überschätzung der gegenwärtigen Leistungen der deutschsprachigen Informationswissenschaft: Keine fehlende Fundierung? Doch mit gesellschaftlicher Relevanz ausgestattet?. Bernd Jörs antwortet Dirk Lewandowski. In: Open Password. Nr. 691 vom 21.01.2020, [https://www.password- online.de/?mailpoet_router&endpoint=view_in_browser&action=view&data=WzksMCw2MjY0LCIxMjF0dWVibnVuczBra2dnY2d3d2c0ODB3ODgwazRzYyIsOCwwXQ].
Lewandowski, D.: Web Information Retrieval : Technologien zur Informationssuche im Internet (2005) 0.00
```
0.0011273256 = product of:
  0.007891279 = sum of:
    0.007891279 = weight(_text_:j in 3635) [ClassicSimilarity], result of:
      0.007891279 = score(doc=3635,freq=2.0), product of:
        0.11238991 = queryWeight, product of:
          3.1774964 = idf(docFreq=5010, maxDocs=44218)
          0.035370585 = queryNorm
        0.070213415 = fieldWeight in 3635, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1774964 = idf(docFreq=5010, maxDocs=44218)
          0.015625 = fieldNorm(doc=3635)
  0.14285715 = coord(1/7)
```
Footnote

Rez. in: Information - Wissenschaft und Praxis. 56(2005) H.7, S.393-394 (J. Griesbaum): "... , das Buch wird seinem Titel und dem formulierten Anspruch sehr gut gerecht. Die 248 Seiten umfängliche Publikation leistet eine umfassende und, für den deutschsprachigen Raum, einzigartige State-of-the-Art-Analyse der Verfahren und auch der Defizite von Suchmaschinen im Internet. Dabei beschränkt sich Lewandowski nicht auf eine technikzentrierte Beschreibung aktueller Retrievalansätze, sondern akzentuiert ebenso deutlich auch die Problemfelder bei der Nutzung von Suchmaschinen. Dieser nutzerzentrierte Ansatz kommt vor allem im konzeptionellen Teil der Arbeit zum Tragen, der das Ziel verfolgt, Suchmaschinennutzern verbesserte Rechercheoptionen zu verschaffen. Angesichts der nur in geringem Maße vorhandenen Recherchekenntnisse der Nutzer liegt die Herausforderung vor allem darin, solche verbesserten Recherchemöglichkeiten derart auszugestalten, dass sie sich in realen Suchkontexten auch tatsächlich auswirken und nicht etwa wie die meist als "Erweitere Suche" bezeichneten Anfragemasken ein kaum beachtetes Dasein fristen. Der Verfasser konzipiert in diesem wichtigen Forschungsfeld neue Ansätze, um die Oualität des Information Retrievals zu verbessern. ... "

Search (16 results, page 1 of 1)

Authors

Years

Languages

Types

Themes