Search (7 results, page 1 of 1)

  • × subject_ss:"Web search engines"
  1. Berry, M.W.; Browne, M.: Understanding search engines : mathematical modeling and text retrieval (1999) 0.04
    0.038065713 = product of:
      0.076131426 = sum of:
        0.06671549 = weight(_text_:processing in 5777) [ClassicSimilarity], result of:
          0.06671549 = score(doc=5777,freq=4.0), product of:
            0.175792 = queryWeight, product of:
              4.048147 = idf(docFreq=2097, maxDocs=44218)
              0.043425296 = queryNorm
            0.3795138 = fieldWeight in 5777, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.048147 = idf(docFreq=2097, maxDocs=44218)
              0.046875 = fieldNorm(doc=5777)
        0.00941594 = product of:
          0.02824782 = sum of:
            0.02824782 = weight(_text_:science in 5777) [ClassicSimilarity], result of:
              0.02824782 = score(doc=5777,freq=4.0), product of:
                0.11438741 = queryWeight, product of:
                  2.6341193 = idf(docFreq=8627, maxDocs=44218)
                  0.043425296 = queryNorm
                0.24694869 = fieldWeight in 5777, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  2.6341193 = idf(docFreq=8627, maxDocs=44218)
                  0.046875 = fieldNorm(doc=5777)
          0.33333334 = coord(1/3)
      0.5 = coord(2/4)
    
    LCSH
    Text processing (Computer science)
    Subject
    Text processing (Computer science)
  2. Berry, M.W.; Browne, M.: Understanding search engines : mathematical modeling and text retrieval (2005) 0.03
    0.025377143 = product of:
      0.050754286 = sum of:
        0.044476993 = weight(_text_:processing in 7) [ClassicSimilarity], result of:
          0.044476993 = score(doc=7,freq=4.0), product of:
            0.175792 = queryWeight, product of:
              4.048147 = idf(docFreq=2097, maxDocs=44218)
              0.043425296 = queryNorm
            0.2530092 = fieldWeight in 7, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.048147 = idf(docFreq=2097, maxDocs=44218)
              0.03125 = fieldNorm(doc=7)
        0.006277293 = product of:
          0.018831879 = sum of:
            0.018831879 = weight(_text_:science in 7) [ClassicSimilarity], result of:
              0.018831879 = score(doc=7,freq=4.0), product of:
                0.11438741 = queryWeight, product of:
                  2.6341193 = idf(docFreq=8627, maxDocs=44218)
                  0.043425296 = queryNorm
                0.16463245 = fieldWeight in 7, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  2.6341193 = idf(docFreq=8627, maxDocs=44218)
                  0.03125 = fieldNorm(doc=7)
          0.33333334 = coord(1/3)
      0.5 = coord(2/4)
    
    LCSH
    Text processing (Computer science)
    Subject
    Text processing (Computer science)
  3. Web search engine research (2012) 0.00
    0.0037219774 = product of:
      0.014887909 = sum of:
        0.014887909 = product of:
          0.044663727 = sum of:
            0.044663727 = weight(_text_:science in 478) [ClassicSimilarity], result of:
              0.044663727 = score(doc=478,freq=10.0), product of:
                0.11438741 = queryWeight, product of:
                  2.6341193 = idf(docFreq=8627, maxDocs=44218)
                  0.043425296 = queryNorm
                0.39046016 = fieldWeight in 478, product of:
                  3.1622777 = tf(freq=10.0), with freq of:
                    10.0 = termFreq=10.0
                  2.6341193 = idf(docFreq=8627, maxDocs=44218)
                  0.046875 = fieldNorm(doc=478)
          0.33333334 = coord(1/3)
      0.25 = coord(1/4)
    
    Abstract
    "Web Search Engine Research", edited by Dirk Lewandowski, provides an understanding of Web search engines from the unique perspective of Library and Information Science. The book explores a range of topics including retrieval effectiveness, user satisfaction, the evaluation of search interfaces, the impact of search on society, reliability of search results, query log analysis, user guidance in the search process, and the influence of search engine optimization (SEO) on results quality. While research in computer science has mainly focused on technical aspects of search engines, LIS research is centred on users' behaviour when using search engines and how this interaction can be evaluated. LIS research provides a unique perspective in intermediating between the technical aspects, user aspects and their impact on their role in knowledge acquisition. This book is directly relevant to researchers and practitioners in library and information science, computer science, including Web researchers.
    Series
    Library and information science; vol. 4
  4. Franke, F; Klein, A.; Schüller-Zwierlein, A.: Schlüsselkompetenzen : Literatur recherchieren in Bibliotheken und Internet (2010) 0.00
    0.0019789783 = product of:
      0.007915913 = sum of:
        0.007915913 = product of:
          0.023747738 = sum of:
            0.023747738 = weight(_text_:29 in 4721) [ClassicSimilarity], result of:
              0.023747738 = score(doc=4721,freq=2.0), product of:
                0.15275662 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.043425296 = queryNorm
                0.15546128 = fieldWeight in 4721, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.03125 = fieldNorm(doc=4721)
          0.33333334 = coord(1/3)
      0.25 = coord(1/4)
    
    Date
    29. 8.2011 12:21:48
  5. Belew, R.K.: Finding out about : a cognitive perspective on search engine technology and the WWW (2001) 0.00
    0.0015693232 = product of:
      0.006277293 = sum of:
        0.006277293 = product of:
          0.018831879 = sum of:
            0.018831879 = weight(_text_:science in 3346) [ClassicSimilarity], result of:
              0.018831879 = score(doc=3346,freq=4.0), product of:
                0.11438741 = queryWeight, product of:
                  2.6341193 = idf(docFreq=8627, maxDocs=44218)
                  0.043425296 = queryNorm
                0.16463245 = fieldWeight in 3346, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  2.6341193 = idf(docFreq=8627, maxDocs=44218)
                  0.03125 = fieldNorm(doc=3346)
          0.33333334 = coord(1/3)
      0.25 = coord(1/4)
    
    Abstract
    The World Wide Web is rapidly filling with more text than anyone could have imagined even a short time ago, but the task of isolating relevant parts of this vast information has become just that much more daunting. Richard Belew brings a cognitive perspective to the study of information retrieval as a discipline within computer science. He introduces the idea of Finding Out About (FDA) as the process of actively seeking out information relevant to a topic of interest and describes its many facets - ranging from creating a good characterization of what the user seeks, to what documents actually mean, to methods of inferring semantic clues about each document, to the problem of evaluating whether our search engines are performing as we have intended. Finding Out About explains how to build the tools that are useful for searching collections of text and other media. In the process it takes a close look at the properties of textual documents that do not become clear until very large collections of them are brought together and shows that the construction of effective search engines requires knowledge of the statistical and mathematical properties of linguistic phenomena, as well as an appreciation for the cognitive foundation we bring to the task as language users. The unique approach of this book is its even handling of the phenomena of both numbers and words, making it accessible to a wide audience. The textbook is usable in both undergraduate and graduate classes on information retrieval, library science, and computational linguistics. The text is accompanied by a CD-ROM that contains a hypertext version of the book, including additional topics and notes not present in the printed edition. In addition, the CD contains the full text of C.J. "Keith" van Rijsbergen's famous textbook, Information Retrieval (now out of print). Many active links from Belew's to van Rijsbergen's hypertexts help to unite the material. Several test corpora and indexing tools are provided, to support the design of your own search engine. Additional exercises using these corpora and code are available to instructors. Also supporting this book is a Web site that will include recent additions to the book, as well as links to sites of new topics and methods.
  6. Social information retrieval systems : emerging technologies and applications for searching the Web effectively (2008) 0.00
    0.0011096792 = product of:
      0.004438717 = sum of:
        0.004438717 = product of:
          0.01331615 = sum of:
            0.01331615 = weight(_text_:science in 4127) [ClassicSimilarity], result of:
              0.01331615 = score(doc=4127,freq=2.0), product of:
                0.11438741 = queryWeight, product of:
                  2.6341193 = idf(docFreq=8627, maxDocs=44218)
                  0.043425296 = queryNorm
                0.11641272 = fieldWeight in 4127, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.6341193 = idf(docFreq=8627, maxDocs=44218)
                  0.03125 = fieldNorm(doc=4127)
          0.33333334 = coord(1/3)
      0.25 = coord(1/4)
    
    Imprint
    Hershey, Pa. : Information Science Reference
  7. Libraries and Google (2005) 0.00
    5.548396E-4 = product of:
      0.0022193585 = sum of:
        0.0022193585 = product of:
          0.006658075 = sum of:
            0.006658075 = weight(_text_:science in 1973) [ClassicSimilarity], result of:
              0.006658075 = score(doc=1973,freq=2.0), product of:
                0.11438741 = queryWeight, product of:
                  2.6341193 = idf(docFreq=8627, maxDocs=44218)
                  0.043425296 = queryNorm
                0.05820636 = fieldWeight in 1973, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.6341193 = idf(docFreq=8627, maxDocs=44218)
                  0.015625 = fieldNorm(doc=1973)
          0.33333334 = coord(1/3)
      0.25 = coord(1/4)
    
    Footnote
    ... This book is written by library professionals and aimed at the librarians in particular, but it will be useful to others who may be interested in knowing what libraries are up to in the age of Google. It is intended for library science educators and students, library administrators, publishers and university presses. It is well organized, well researched, and easily readable. Article titles are descriptive, allowing the reader to find what he needs by scanning the table of contents or by consulting the index. The only flaw in this book is the lack of summary or conclusions in a few articles. The book is in paperback and has 240 pages. This book is a significant contribution and I highly recommend it."

Languages

Types