Search (1336 results, page 1 of 67)

  • × year_i:[2000 TO 2010}
  1. Hotho, A.; Bloehdorn, S.: Data Mining 2004 : Text classification by boosting weak learners based on terms and concepts (2004) 0.21 
    0.21403064 = sum of:
  0.052593127 = product of:
    0.21037251 = sum of:
      0.21037251 = weight(_text_:3a in 562) [ClassicSimilarity], result of:
        0.21037251 = score(doc=562,freq=2.0), product of:
          0.3743163 = queryWeight, product of:
            8.478011 = idf(docFreq=24, maxDocs=44218)
            0.04415143 = queryNorm
          0.56201804 = fieldWeight in 562, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            8.478011 = idf(docFreq=24, maxDocs=44218)
            0.046875 = fieldNorm(doc=562)
    0.25 = coord(1/4)
  0.16143751 = sum of:
    0.12554605 = weight(_text_:q in 562) [ClassicSimilarity], result of:
      0.12554605 = score(doc=562,freq=2.0), product of:
        0.28916505 = queryWeight, product of:
          6.5493927 = idf(docFreq=171, maxDocs=44218)
          0.04415143 = queryNorm
        0.43416747 = fieldWeight in 562, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          6.5493927 = idf(docFreq=171, maxDocs=44218)
          0.046875 = fieldNorm(doc=562)
    0.035891455 = weight(_text_:22 in 562) [ClassicSimilarity], result of:
      0.035891455 = score(doc=562,freq=2.0), product of:
        0.15461078 = queryWeight, product of:
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.04415143 = queryNorm
        0.23214069 = fieldWeight in 562, 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=562)
    Content
    Vgl.: http://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&ved=0CEAQFjAA&url=http%3A%2F%2Fciteseerx.ist.psu.edu%2Fviewdoc%2Fdownload%3Fdoi%3D10.1.1.91.4940%26rep%3Drep1%26type%3Dpdf&ei=dOXrUMeIDYHDtQahsIGACg&usg=AFQjCNHFWVh6gNPvnOrOS9R3rkrXCNVD-A&sig2=5I2F5evRfMnsttSgFF9g7Q&bvm=bv.1357316858,d.Yms.
    Date
    8. 1.2013 10:22:32
  2. Kim, S.; Oh, S.: Users' relevance criteria for evaluating answers in a social Q&A site (2009) 0.12 
    0.119576484 = product of:
  0.23915297 = sum of:
    0.23915297 = sum of:
      0.20924342 = weight(_text_:q in 2756) [ClassicSimilarity], result of:
        0.20924342 = score(doc=2756,freq=8.0), product of:
          0.28916505 = queryWeight, product of:
            6.5493927 = idf(docFreq=171, maxDocs=44218)
            0.04415143 = queryNorm
          0.7236124 = fieldWeight in 2756, product of:
            2.828427 = tf(freq=8.0), with freq of:
              8.0 = termFreq=8.0
            6.5493927 = idf(docFreq=171, maxDocs=44218)
            0.0390625 = fieldNorm(doc=2756)
      0.029909546 = weight(_text_:22 in 2756) [ClassicSimilarity], result of:
        0.029909546 = score(doc=2756,freq=2.0), product of:
          0.15461078 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.04415143 = queryNorm
          0.19345059 = fieldWeight in 2756, 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=2756)
  0.5 = coord(1/2)
    Abstract
    This study examines the criteria questioners use to select the best answers in a social Q&A site (Yahoo! Answers) within the theoretical framework of relevance research. A social Q&A site is a novel environment where people voluntarily ask and answer questions. In Yahoo! Answers, the questioner selects the answer that best satisfies his or her question and leaves comments on it. Under the assumption that the comments reflect the reasons why questioners select particular answers as the best, this study analyzed 2,140 comments collected from Yahoo! Answers during December 2007. The content analysis identified 23 individual relevance criteria in six classes: Content, Cognitive, Utility, Information Sources, Extrinsic, and Socioemotional. A major finding is that the selection criteria used in a social Q&A site have considerable overlap with many relevance criteria uncovered in previous relevance studies, but that the scope of socio-emotional criteria has been expanded to include the social aspect of this environment. Another significant finding is that the relative importance of individual criteria varies according to topic categories. Socioemotional criteria are popular in discussion-oriented categories, content-oriented criteria in topic-oriented categories, and utility criteria in self-help categories. This study generalizes previous relevance studies to a new environment by going beyond an academic setting.
    Date
    22. 3.2009 18:57:23
  3. Ackermann, E.: Piaget's constructivism, Papert's constructionism : what's the difference? (2001) 0.11 
    0.11231808 = product of:
  0.22463617 = sum of:
    0.22463617 = product of:
      0.44927233 = sum of:
        0.17531043 = weight(_text_:3a in 692) [ClassicSimilarity], result of:
          0.17531043 = score(doc=692,freq=2.0), product of:
            0.3743163 = queryWeight, product of:
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.04415143 = queryNorm
            0.46834838 = fieldWeight in 692, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.0390625 = fieldNorm(doc=692)
        0.2739619 = weight(_text_:2c in 692) [ClassicSimilarity], result of:
          0.2739619 = score(doc=692,freq=2.0), product of:
            0.467929 = queryWeight, product of:
              10.598275 = idf(docFreq=2, maxDocs=44218)
              0.04415143 = queryNorm
            0.5854775 = fieldWeight in 692, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              10.598275 = idf(docFreq=2, maxDocs=44218)
              0.0390625 = fieldNorm(doc=692)
      0.5 = coord(2/4)
  0.5 = coord(1/2)
    Content
    Vgl.: https://www.semanticscholar.org/paper/Piaget-%E2%80%99-s-Constructivism-%2C-Papert-%E2%80%99-s-%3A-What-%E2%80%99-s-Ackermann/89cbcc1e740a4591443ff4765a6ae8df0fdf5554. Darunter weitere Hinweise auf verwandte Beiträge. Auch unter: Learning Group Publication 5(2001) no.3, S.438.
  4. Gödert, W.; Hubrich, J.; Boteram, F.: Thematische Recherche und Interoperabilität : Wege zur Optimierung des Zugriffs auf heterogen erschlossene Dokumente (2009) 0.08 
    0.08344525 = sum of:
  0.068490475 = product of:
    0.2739619 = sum of:
      0.2739619 = weight(_text_:2c in 193) [ClassicSimilarity], result of:
        0.2739619 = score(doc=193,freq=2.0), product of:
          0.467929 = queryWeight, product of:
            10.598275 = idf(docFreq=2, maxDocs=44218)
            0.04415143 = queryNorm
          0.5854775 = fieldWeight in 193, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            10.598275 = idf(docFreq=2, maxDocs=44218)
            0.0390625 = fieldNorm(doc=193)
    0.25 = coord(1/4)
  0.014954773 = product of:
    0.029909546 = sum of:
      0.029909546 = weight(_text_:22 in 193) [ClassicSimilarity], result of:
        0.029909546 = score(doc=193,freq=2.0), product of:
          0.15461078 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.04415143 = queryNorm
          0.19345059 = fieldWeight in 193, 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=193)
    0.5 = coord(1/2)
    Source
    https://opus4.kobv.de/opus4-bib-info/frontdoor/index/index/searchtype/authorsearch/author/%22Hubrich%2C+Jessica%22/docId/703/start/0/rows/20
  5. Gao, Q.: Visual knowledge representation for three-dimensional computing vision (2000) 0.07 
    0.07323521 = product of:
  0.14647041 = sum of:
    0.14647041 = product of:
      0.29294083 = sum of:
        0.29294083 = weight(_text_:q in 4673) [ClassicSimilarity], result of:
          0.29294083 = score(doc=4673,freq=2.0), product of:
            0.28916505 = queryWeight, product of:
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.04415143 = queryNorm
            1.0130575 = fieldWeight in 4673, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.109375 = fieldNorm(doc=4673)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  6. Wu, Y.-f.B.; Li, Q.; Bot, R.S.; Chen, X.: Finding nuggets in documents : a machine learning approach (2006) 0.07 
    0.06726563 = product of:
  0.13453126 = sum of:
    0.13453126 = sum of:
      0.10462171 = weight(_text_:q in 5290) [ClassicSimilarity], result of:
        0.10462171 = score(doc=5290,freq=2.0), product of:
          0.28916505 = queryWeight, product of:
            6.5493927 = idf(docFreq=171, maxDocs=44218)
            0.04415143 = queryNorm
          0.3618062 = fieldWeight in 5290, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            6.5493927 = idf(docFreq=171, maxDocs=44218)
            0.0390625 = fieldNorm(doc=5290)
      0.029909546 = weight(_text_:22 in 5290) [ClassicSimilarity], result of:
        0.029909546 = score(doc=5290,freq=2.0), product of:
          0.15461078 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.04415143 = queryNorm
          0.19345059 = fieldWeight in 5290, 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=5290)
  0.5 = coord(1/2)
    Date
    22. 7.2006 17:25:48
  7. Heidorn, P.B.; Wei, Q.: Automatic metadata extraction from museum specimen labels (2008) 0.07 
    0.06726563 = product of:
  0.13453126 = sum of:
    0.13453126 = sum of:
      0.10462171 = weight(_text_:q in 2624) [ClassicSimilarity], result of:
        0.10462171 = score(doc=2624,freq=2.0), product of:
          0.28916505 = queryWeight, product of:
            6.5493927 = idf(docFreq=171, maxDocs=44218)
            0.04415143 = queryNorm
          0.3618062 = fieldWeight in 2624, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            6.5493927 = idf(docFreq=171, maxDocs=44218)
            0.0390625 = fieldNorm(doc=2624)
      0.029909546 = weight(_text_:22 in 2624) [ClassicSimilarity], result of:
        0.029909546 = score(doc=2624,freq=2.0), product of:
          0.15461078 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.04415143 = queryNorm
          0.19345059 = fieldWeight in 2624, 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=2624)
  0.5 = coord(1/2)
    Source
    Metadata for semantic and social applications : proceedings of the International Conference on Dublin Core and Metadata Applications, Berlin, 22 - 26 September 2008, DC 2008: Berlin, Germany / ed. by Jane Greenberg and Wolfgang Klas
  8. Neue Suchmaschine von Q-Sensei ermöglicht mehrdimensionales Navigieren (2009) 0.06 
    0.055360615 = product of:
  0.11072123 = sum of:
    0.11072123 = product of:
      0.22144246 = sum of:
        0.22144246 = weight(_text_:q in 2825) [ClassicSimilarity], result of:
          0.22144246 = score(doc=2825,freq=14.0), product of:
            0.28916505 = queryWeight, product of:
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.04415143 = queryNorm
            0.7657995 = fieldWeight in 2825, product of:
              3.7416575 = tf(freq=14.0), with freq of:
                14.0 = termFreq=14.0
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.03125 = fieldNorm(doc=2825)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Content
    "Mit dem Ziel, wissenschaftliche Informationen auf eine neue, effizientere Art und Weise zugänglich zu machen, startet die neue Suchmaschine von Q-Sensei, die im Vergleich zu anderen Suchdiensten ein tiefergehendes, komfortableres und präziseres Finden ermöglicht. Die neue Suchmaschine bietet ein multilineares Interface, welches es den Nutzern erlaubt, jederzeit ihre Suche zu steuern, eigene Parameter zu definieren und einen umfassenden Überblick im Zugriff auf Wissen zu behalten. Q-Sensei bietet aktuell Zugang zu sieben Millionen wissenschaftlichen Artikeln, die mit großer Genauigkeit effektiv durchsucht werden können. Erreicht wird das durch die Analyse der Suchergebnisse, wodurch passend zu jeder Suchanfrage automatisch relevante Suchvorschläge angezeigt werden. Diese können wiederum selbst durchsucht werden, was den Nutzern größere Freiheiten bei der Suche bietet als dies bei anderen Suchmaschinen der Fall ist. Die Q-Sensei Technologie verbindet verschiedene Kategorien von Suchvorschlägen, wie z.B. Autor, Stichworte, Sprache und Jahr der Veröffentlichung miteinander, wodurch ein mehrdimensionales Navigieren möglich wird. Durch die Möglichkeit, Suchvorschläge beliebig miteinander zu kombinieren, hinzuzufügen und zu entfernen, können Nutzer ihre Suche jederzeit bequem erweitern und anpassen und so auch Literatur finden, die ihnen ansonsten entgangen wäre.
    Sobald Nutzer die gewünschten Ergebnisse gefunden haben, können sie auf weitere Informationen zu jedem Treffer zugreifen. Dazu zählen Zitate, Webseiten von Herausgebern oder verwandte Wikipedia-Artikel. Außerdem werden weitere verwandte Themen oder Einträge aus der Q-Sensei-Datenbank angezeigt, die als Ausgangspunkt für eine neue Suche dienen können. Ferner haben alle Nutzer die Möglichkeit, Einträge mit eigenen Daten anzureichern oder zu ändern, sowie weitere relevante Informationen wie Webseiten von Autoren oder Zitate im Wiki-Stil einzutragen. Die Q-Sensei Corp. wurde im April 2007 durch den Zusammenschluss der in Deutschland ansässigen Lalisio GmbH und der US-amerikanischen Gesellschaft QUASM Corporation gegründet. Q-Sensei hat seinen vorübergehenden Sitz in Melbourne, FL und betreibt in Erfurt die Tochterfirma Lalisio."
  9. Raban, D.R.: Self-presentation and the value of information in Q&A websites (2009) 0.05 
    0.054363046 = product of:
  0.10872609 = sum of:
    0.10872609 = product of:
      0.21745218 = sum of:
        0.21745218 = weight(_text_:q in 3295) [ClassicSimilarity], result of:
          0.21745218 = score(doc=3295,freq=6.0), product of:
            0.28916505 = queryWeight, product of:
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.04415143 = queryNorm
            0.7520002 = fieldWeight in 3295, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.046875 = fieldNorm(doc=3295)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    Prior research has shown that social interaction is important for continuation of question-and-answer (Q&A) activity online and that it also leads to monetary rewards. The present research focuses on the link between social interaction and the value of information. Expressions of self-presentation in the interaction between askers and answerers online are studied as antecedents for answer feedback which represents the value of the answer to the asker. This relationship is examined in a Q&A site, specifically, in Google Answers (GA). The results of content analysis performed on sets of questions and answers show that both explicit and implicit social cues are used by the site's participants; however, only implicit expressions of self-presentation are related to the provision of social and monetary feedback, ratings, and tips. This finding highlights the importance of implicit cues in textual communication and lends support to the notion of social capital where both monetary and social forms of feedback are the result of interaction online.
  10. Liu, A.; Zou, Q.; Chu, W.W.: Configurable indexing and ranking for XML information retrieval (2004) 0.05 
    0.052310854 = product of:
  0.10462171 = sum of:
    0.10462171 = product of:
      0.20924342 = sum of:
        0.20924342 = weight(_text_:q in 4114) [ClassicSimilarity], result of:
          0.20924342 = score(doc=4114,freq=2.0), product of:
            0.28916505 = queryWeight, product of:
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.04415143 = queryNorm
            0.7236124 = fieldWeight in 4114, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.078125 = fieldNorm(doc=4114)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  11. Shen, D.; Chen, Z.; Yang, Q.; Zeng, H.J.; Zhang, B.; Lu, Y.; Ma, W.Y.: Web page classification through summarization (2004) 0.05 
    0.052310854 = product of:
  0.10462171 = sum of:
    0.10462171 = product of:
      0.20924342 = sum of:
        0.20924342 = weight(_text_:q in 4132) [ClassicSimilarity], result of:
          0.20924342 = score(doc=4132,freq=2.0), product of:
            0.28916505 = queryWeight, product of:
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.04415143 = queryNorm
            0.7236124 = fieldWeight in 4132, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.078125 = fieldNorm(doc=4132)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  12. Kretschmer, H.; Kretschmer, T.: Well-ordered collaboration structures of co-author pairs in journals (2006) 0.04 
    0.036989365 = product of:
  0.07397873 = sum of:
    0.07397873 = product of:
      0.14795746 = sum of:
        0.14795746 = weight(_text_:q in 25) [ClassicSimilarity], result of:
          0.14795746 = score(doc=25,freq=4.0), product of:
            0.28916505 = queryWeight, product of:
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.04415143 = queryNorm
            0.5116713 = fieldWeight in 25, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.0390625 = fieldNorm(doc=25)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    In single-authored bibliographies only single scientist distribution can be found. But in multi-authored bibliographies single scientists distribution, pairs distribution, triples distribution, etc., can be presented. Whereas regarding Lotka's law single scientists P distribution (both in single-authored and in multi-authored bibliographies) is of interest, in the future pairs P, Q distribution, triples P, Q, R distribution, etc. should be considered Starting with pair distribution, the following question arises in the present paper: Is there also any regularity or well-ordered structure for the distribution of coauthor pairs in journals in analogy to Lotka's law for the distribution of single authors? Usually, in information science "laws " or "regularities " (for example Lotka's law) are mathematical descriptions of observed data inform of functions; however explanations of these phenomena are mostly missing. By contrast, in this paper the derivation of a formula for describing the distribution of the number of co-author pairs will be presented based on wellknown regularities in socio psychology or sociology in conjunction with the Gestalt theory as explanation for well-ordered collaboration structures and production of scientific literature, as well as derivations from Lotka's law. The assumed regularities for the distribution of co-author pairs in journals could be shown in the co-authorship data (1980-1998) of the journals Science, Nature, Proc Nat Acad Sci USA and Phys Rev B Condensed Matter.
  13. Chen, Z.; Fu, B.: On the complexity of Rocchio's similarity-based relevance feedback algorithm (2007) 0.04 
    0.036989365 = product of:
  0.07397873 = sum of:
    0.07397873 = product of:
      0.14795746 = sum of:
        0.14795746 = weight(_text_:q in 578) [ClassicSimilarity], result of:
          0.14795746 = score(doc=578,freq=4.0), product of:
            0.28916505 = queryWeight, product of:
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.04415143 = queryNorm
            0.5116713 = fieldWeight in 578, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.0390625 = fieldNorm(doc=578)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    Rocchio's similarity-based relevance feedback algorithm, one of the most important query reformation methods in information retrieval, is essentially an adaptive learning algorithm from examples in searching for documents represented by a linear classifier. Despite its popularity in various applications, there is little rigorous analysis of its learning complexity in literature. In this article, the authors prove for the first time that the learning complexity of Rocchio's algorithm is O(d + d**2(log d + log n)) over the discretized vector space {0, ... , n - 1 }**d when the inner product similarity measure is used. The upper bound on the learning complexity for searching for documents represented by a monotone linear classifier (q, 0) over {0, ... , n - 1 }d can be improved to, at most, 1 + 2k (n - 1) (log d + log(n - 1)), where k is the number of nonzero components in q. Several lower bounds on the learning complexity are also obtained for Rocchio's algorithm. For example, the authors prove that Rocchio's algorithm has a lower bound Omega((d über 2)log n) on its learning complexity over the Boolean vector space {0,1}**d.
  14. Pera, M.S.; Lund, W.; Ng, Y.-K.: ¬A sophisticated library search strategy using folksonomies and similarity matching (2009) 0.04 
    0.036989365 = product of:
  0.07397873 = sum of:
    0.07397873 = product of:
      0.14795746 = sum of:
        0.14795746 = weight(_text_:q in 2939) [ClassicSimilarity], result of:
          0.14795746 = score(doc=2939,freq=4.0), product of:
            0.28916505 = queryWeight, product of:
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.04415143 = queryNorm
            0.5116713 = fieldWeight in 2939, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2939)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    Libraries, private and public, offer valuable resources to library patrons. As of today, the only way to locate information archived exclusively in libraries is through their catalogs. Library patrons, however, often find it difficult to formulate a proper query, which requires using specific keywords assigned to different fields of desired library catalog records, to obtain relevant results. These improperly formulated queries often yield irrelevant results or no results at all. This negative experience in dealing with existing library systems turns library patrons away from directly querying library catalogs; instead, they rely on Web search engines to perform their searches first, and upon obtaining the initial information (e.g., titles, subject headings, or authors) on the desired library materials, they query library catalogs. This searching strategy is an evidence of failure of today's library systems. In solving this problem, we propose an enhanced library system, which allows partial, similarity matching of (a) tags defined by ordinary users at a folksonomy site that describe the content of books and (b) unrestricted keywords specified by an ordinary library patron in a query to search for relevant library catalog records. The proposed library system allows patrons posting a query Q using commonly used words and ranks the retrieved results according to their degrees of resemblance with Q while maintaining the query processing time comparable with that achieved by current library search engines.
  15. Shachaf, P.: ¬The paradox of expertise : is the Wikipedia Reference Desk as good as your library? (2009) 0.04 
    0.036989365 = product of:
  0.07397873 = sum of:
    0.07397873 = product of:
      0.14795746 = sum of:
        0.14795746 = weight(_text_:q in 3617) [ClassicSimilarity], result of:
          0.14795746 = score(doc=3617,freq=4.0), product of:
            0.28916505 = queryWeight, product of:
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.04415143 = queryNorm
            0.5116713 = fieldWeight in 3617, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3617)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    Purpose - The purpose of this paper is to examine the quality of answers on the Wikipedia Reference Desk, and to compare it with library reference services. It aims to examine whether Wikipedia volunteers outperform expert reference librarians and exemplify the paradox of expertise. Design/methodology/approach - The study applied content analysis to a sample of 434 messages (77 questions and 357 responses) from the Wikipedia Reference Desk and focused on three SERVQUAL quality variables: reliability (accuracy, completeness, verifiability), responsiveness, and assurance. Findings - The study reports that on all three SERVQUAL measures quality of answers produced by the Wikipedia Reference Desk is comparable with that of library reference services. Research limitations/implications - The collaborative social reference model matched or outperformed the dyadic reference interview and should be further examined theoretically and empirically. The generalizability of the findings to other similar sites is questionable. Practical implications - Librarians and library science educators should examine the implications of the social reference on the future role of reference services. Originality/value - The study is the first to: examine the quality of the Wikipedia Reference Desk; extend research on Wikipedia quality; use SERVQUAL measures in evaluating Q&A sites; and compare Q&A sites with traditional reference services.
  16. Tononi, G.: Consciousness as integrated information : a provisional manifesto (2008) 0.04 
    0.036989365 = product of:
  0.07397873 = sum of:
    0.07397873 = product of:
      0.14795746 = sum of:
        0.14795746 = weight(_text_:q in 4690) [ClassicSimilarity], result of:
          0.14795746 = score(doc=4690,freq=4.0), product of:
            0.28916505 = queryWeight, product of:
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.04415143 = queryNorm
            0.5116713 = fieldWeight in 4690, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.0390625 = fieldNorm(doc=4690)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    The integrated information theory (IIT) starts from phenomenology and makes use of thought experiments to claim that consciousness is integrated information. Specifically: (i) the quantity of consciousness corresponds to the amount of integrated information generated by a complex of elements; (ii) the quality of experience is specified by the set of informational relationships generated within that complex. Integrated information (PHI) is defined as the amount of information generated by a complex of elements, above and beyond the information generated by its parts. Qualia space (Q) is a space where each axis represents a possible state of the complex, each point is a probability distribution of its states, and arrows between points represent the informational relationships among its elements generated by causal mechanisms (connections). Together, the set of informational relationships within a complex constitute a shape in Q that completely and univocally specifies a particular experience. Several observations concerning the neural substrate of consciousness fall naturally into place within the IIT framework. Among them are the association of consciousness with certain neural systems rather than with others; the fact that neural processes underlying consciousness can influence or be influenced by neural processes that remain unconscious; the reduction of consciousness during dreamless sleep and generalized seizures; and the distinct role of different cortical architectures in affecting the quality of experience. Equating consciousness with integrated information carries several implications for our view of nature.
  17. Geng, Q.; Townley, C.; Huang, K.; Zhang, J.: Comparative knowledge management : a pilot study of Chinese and American universities (2005) 0.04 
    0.036617603 = product of:
  0.07323521 = sum of:
    0.07323521 = product of:
      0.14647041 = sum of:
        0.14647041 = weight(_text_:q in 3876) [ClassicSimilarity], result of:
          0.14647041 = score(doc=3876,freq=2.0), product of:
            0.28916505 = queryWeight, product of:
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.04415143 = queryNorm
            0.50652874 = fieldWeight in 3876, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3876)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  18. Hu, Q.: On Chinese romanization and syllable aggregation (2005) 0.04 
    0.036617603 = product of:
  0.07323521 = sum of:
    0.07323521 = product of:
      0.14647041 = sum of:
        0.14647041 = weight(_text_:q in 5004) [ClassicSimilarity], result of:
          0.14647041 = score(doc=5004,freq=2.0), product of:
            0.28916505 = queryWeight, product of:
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.04415143 = queryNorm
            0.50652874 = fieldWeight in 5004, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5004)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  19. Jin, Q.: Comparing and evaluating corporate names in the National Authority File (LC NAF) on OCLC and on the Web (2003) 0.04 
    0.036617603 = product of:
  0.07323521 = sum of:
    0.07323521 = product of:
      0.14647041 = sum of:
        0.14647041 = weight(_text_:q in 5495) [ClassicSimilarity], result of:
          0.14647041 = score(doc=5495,freq=2.0), product of:
            0.28916505 = queryWeight, product of:
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.04415143 = queryNorm
            0.50652874 = fieldWeight in 5495, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5495)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  20. Wills, G.; Miles-Board, T.; Bailey, C.; Carr, L.; Gee, Q.; Hall, W.; Grange, S.: ¬The dynamic review journal : a scholarly archive (2005) 0.04 
    0.036617603 = product of:
  0.07323521 = sum of:
    0.07323521 = product of:
      0.14647041 = sum of:
        0.14647041 = weight(_text_:q in 5918) [ClassicSimilarity], result of:
          0.14647041 = score(doc=5918,freq=2.0), product of:
            0.28916505 = queryWeight, product of:
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.04415143 = queryNorm
            0.50652874 = fieldWeight in 5918, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5918)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Authors

Languages

Types

  • a 1126
  • m 145
  • el 62
  • s 51
  • b 26
  • x 13
  • i 8
  • n 2
  • r 1
  • More… Less…

Themes

Subjects

Classifications