Document (#22807)

Author
Nicholson, S.
Title
Raising reliability of Web search tool research through replication and chaos theory
Source
Journal of the American Society for Information Science. 51(2000) no.8, S.724-729
Year
2000
Abstract
Because the WWW is a dynamic collection of information, the Web search tools (or 'search engines') that index the Web are dynamic. Traditional information retrieval evaluation techniques may not provide reliable results when applied to the Web search tools. This study is the result of 10 replications of the 1996 classic Ding and Marchionini Web search tool research. It explores the effects that replication can have on transforming unreliable results from one iteration into replicable and therefore reliable results following multile iterations
Footnote
Vgl.: Ding, W. u. G. Marchionini: A comparative study of Web search service performance
Theme
Suchmaschinen
Object
Infoseek
Lycos
AltaVista
Excite

Similar documents (author)

  1. Nicholson, D.: Subject-based interoperability : issues from the High Level Thesaurus (HILT) Project (2002) 5.35
    5.353733 = sum of:
      5.353733 = weight(author_txt:nicholson in 2916) [ClassicSimilarity], result of:
        5.353733 = fieldWeight in 2916, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.565973 = idf(docFreq=22, maxDocs=44421)
          0.625 = fieldNorm(doc=2916)
    
  2. Nicholson, D.: Cataloguing the Internet : CATRIONA feasibility study (1995) 5.35
    5.353733 = sum of:
      5.353733 = weight(author_txt:nicholson in 6364) [ClassicSimilarity], result of:
        5.353733 = fieldWeight in 6364, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.565973 = idf(docFreq=22, maxDocs=44421)
          0.625 = fieldNorm(doc=6364)
    
  3. Nicholson, S.: ¬A proposal for categorization and nomenclature for Web search tools (2000) 5.35
    5.353733 = sum of:
      5.353733 = weight(author_txt:nicholson in 103) [ClassicSimilarity], result of:
        5.353733 = fieldWeight in 103, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.565973 = idf(docFreq=22, maxDocs=44421)
          0.625 = fieldNorm(doc=103)
    
  4. Nicholson, S.: Bibliomining for automated collection development in a digital library setting : using data mining to discover Web-based scholarly research works (2003) 5.35
    5.353733 = sum of:
      5.353733 = weight(author_txt:nicholson in 2867) [ClassicSimilarity], result of:
        5.353733 = fieldWeight in 2867, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.565973 = idf(docFreq=22, maxDocs=44421)
          0.625 = fieldNorm(doc=2867)
    
  5. Nicholson, D.: Interpretive journeys and METS : determining requirements for the effective management of complex digital objects in a National Park (2006) 5.35
    5.353733 = sum of:
      5.353733 = weight(author_txt:nicholson in 597) [ClassicSimilarity], result of:
        5.353733 = fieldWeight in 597, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.565973 = idf(docFreq=22, maxDocs=44421)
          0.625 = fieldNorm(doc=597)
    

Similar documents (content)

  1. Nicholson, S.: ¬A proposal for categorization and nomenclature for Web search tools (2000) 0.14
    0.14009903 = sum of:
      0.14009903 = product of:
        0.7004952 = sum of:
          0.020728111 = weight(abstract_txt:research in 103) [ClassicSimilarity], result of:
            0.020728111 = score(doc=103,freq=1.0), product of:
              0.059980772 = queryWeight, product of:
                1.2248826 = boost
                3.159582 = idf(docFreq=5124, maxDocs=44421)
                0.015498439 = queryNorm
              0.34557927 = fieldWeight in 103, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.159582 = idf(docFreq=5124, maxDocs=44421)
                0.109375 = fieldNorm(doc=103)
          0.115718216 = weight(abstract_txt:tools in 103) [ClassicSimilarity], result of:
            0.115718216 = score(doc=103,freq=4.0), product of:
              0.118910454 = queryWeight, product of:
                1.72464 = boost
                4.448705 = idf(docFreq=1411, maxDocs=44421)
                0.015498439 = queryNorm
              0.97315425 = fieldWeight in 103, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.448705 = idf(docFreq=1411, maxDocs=44421)
                0.109375 = fieldNorm(doc=103)
          0.30506828 = weight(abstract_txt:replicable in 103) [ClassicSimilarity], result of:
            0.30506828 = score(doc=103,freq=1.0), product of:
              0.2859084 = queryWeight, product of:
                1.8909799 = boost
                9.755557 = idf(docFreq=6, maxDocs=44421)
                0.015498439 = queryNorm
              1.0670141 = fieldWeight in 103, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.755557 = idf(docFreq=6, maxDocs=44421)
                0.109375 = fieldNorm(doc=103)
          0.07966639 = weight(abstract_txt:tool in 103) [ClassicSimilarity], result of:
            0.07966639 = score(doc=103,freq=1.0), product of:
              0.14717102 = queryWeight, product of:
                1.918667 = boost
                4.9491973 = idf(docFreq=855, maxDocs=44421)
                0.015498439 = queryNorm
              0.5413185 = fieldWeight in 103, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.9491973 = idf(docFreq=855, maxDocs=44421)
                0.109375 = fieldNorm(doc=103)
          0.17931421 = weight(abstract_txt:search in 103) [ClassicSimilarity], result of:
            0.17931421 = score(doc=103,freq=5.0), product of:
              0.20061898 = queryWeight, product of:
                3.5419664 = boost
                3.654598 = idf(docFreq=3123, maxDocs=44421)
                0.015498439 = queryNorm
              0.8938048 = fieldWeight in 103, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                3.654598 = idf(docFreq=3123, maxDocs=44421)
                0.109375 = fieldNorm(doc=103)
        0.2 = coord(5/25)
    
  2. Vidmar, D.; Anderson, C.: History of Internet search tools (2002) 0.13
    0.13060115 = sum of:
      0.13060115 = product of:
        0.4664327 = sum of:
          0.024315966 = weight(abstract_txt:engines in 5258) [ClassicSimilarity], result of:
            0.024315966 = score(doc=5258,freq=1.0), product of:
              0.08405752 = queryWeight, product of:
                1.0253254 = boost
                5.2896495 = idf(docFreq=608, maxDocs=44421)
                0.015498439 = queryNorm
              0.2892777 = fieldWeight in 5258, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2896495 = idf(docFreq=608, maxDocs=44421)
                0.0546875 = fieldNorm(doc=5258)
          0.010364056 = weight(abstract_txt:research in 5258) [ClassicSimilarity], result of:
            0.010364056 = score(doc=5258,freq=1.0), product of:
              0.059980772 = queryWeight, product of:
                1.2248826 = boost
                3.159582 = idf(docFreq=5124, maxDocs=44421)
                0.015498439 = queryNorm
              0.17278963 = fieldWeight in 5258, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.159582 = idf(docFreq=5124, maxDocs=44421)
                0.0546875 = fieldNorm(doc=5258)
          0.057859108 = weight(abstract_txt:tools in 5258) [ClassicSimilarity], result of:
            0.057859108 = score(doc=5258,freq=4.0), product of:
              0.118910454 = queryWeight, product of:
                1.72464 = boost
                4.448705 = idf(docFreq=1411, maxDocs=44421)
                0.015498439 = queryNorm
              0.48657712 = fieldWeight in 5258, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.448705 = idf(docFreq=1411, maxDocs=44421)
                0.0546875 = fieldNorm(doc=5258)
          0.1729247 = weight(abstract_txt:iterations in 5258) [ClassicSimilarity], result of:
            0.1729247 = score(doc=5258,freq=2.0), product of:
              0.24672335 = queryWeight, product of:
                1.756623 = boost
                9.06241 = idf(docFreq=13, maxDocs=44421)
                0.015498439 = queryNorm
              0.700885 = fieldWeight in 5258, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                9.06241 = idf(docFreq=13, maxDocs=44421)
                0.0546875 = fieldNorm(doc=5258)
          0.039833196 = weight(abstract_txt:tool in 5258) [ClassicSimilarity], result of:
            0.039833196 = score(doc=5258,freq=1.0), product of:
              0.14717102 = queryWeight, product of:
                1.918667 = boost
                4.9491973 = idf(docFreq=855, maxDocs=44421)
                0.015498439 = queryNorm
              0.27065924 = fieldWeight in 5258, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.9491973 = idf(docFreq=855, maxDocs=44421)
                0.0546875 = fieldNorm(doc=5258)
          0.06292123 = weight(abstract_txt:dynamic in 5258) [ClassicSimilarity], result of:
            0.06292123 = score(doc=5258,freq=1.0), product of:
              0.19961372 = queryWeight, product of:
                2.2345169 = boost
                5.7639313 = idf(docFreq=378, maxDocs=44421)
                0.015498439 = queryNorm
              0.315215 = fieldWeight in 5258, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.7639313 = idf(docFreq=378, maxDocs=44421)
                0.0546875 = fieldNorm(doc=5258)
          0.09821444 = weight(abstract_txt:search in 5258) [ClassicSimilarity], result of:
            0.09821444 = score(doc=5258,freq=6.0), product of:
              0.20061898 = queryWeight, product of:
                3.5419664 = boost
                3.654598 = idf(docFreq=3123, maxDocs=44421)
                0.015498439 = queryNorm
              0.48955706 = fieldWeight in 5258, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                3.654598 = idf(docFreq=3123, maxDocs=44421)
                0.0546875 = fieldNorm(doc=5258)
        0.28 = coord(7/25)
    
  3. Thelwall, M.: Results from a web impact factor crawler (2001) 0.11
    0.11083439 = sum of:
      0.11083439 = product of:
        0.3958371 = sum of:
          0.048133127 = weight(abstract_txt:engines in 5490) [ClassicSimilarity], result of:
            0.048133127 = score(doc=5490,freq=3.0), product of:
              0.08405752 = queryWeight, product of:
                1.0253254 = boost
                5.2896495 = idf(docFreq=608, maxDocs=44421)
                0.015498439 = queryNorm
              0.57262135 = fieldWeight in 5490, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.2896495 = idf(docFreq=608, maxDocs=44421)
                0.0625 = fieldNorm(doc=5490)
          0.030037522 = weight(abstract_txt:therefore in 5490) [ClassicSimilarity], result of:
            0.030037522 = score(doc=5490,freq=1.0), product of:
              0.08853133 = queryWeight, product of:
                1.0522573 = boost
                5.428591 = idf(docFreq=529, maxDocs=44421)
                0.015498439 = queryNorm
              0.33928692 = fieldWeight in 5490, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.428591 = idf(docFreq=529, maxDocs=44421)
                0.0625 = fieldNorm(doc=5490)
          0.016750844 = weight(abstract_txt:research in 5490) [ClassicSimilarity], result of:
            0.016750844 = score(doc=5490,freq=2.0), product of:
              0.059980772 = queryWeight, product of:
                1.2248826 = boost
                3.159582 = idf(docFreq=5124, maxDocs=44421)
                0.015498439 = queryNorm
              0.27927023 = fieldWeight in 5490, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.159582 = idf(docFreq=5124, maxDocs=44421)
                0.0625 = fieldNorm(doc=5490)
          0.05992596 = weight(abstract_txt:reliability in 5490) [ClassicSimilarity], result of:
            0.05992596 = score(doc=5490,freq=1.0), product of:
              0.14030212 = queryWeight, product of:
                1.3246635 = boost
                6.8339334 = idf(docFreq=129, maxDocs=44421)
                0.015498439 = queryNorm
              0.42712083 = fieldWeight in 5490, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.8339334 = idf(docFreq=129, maxDocs=44421)
                0.0625 = fieldNorm(doc=5490)
          0.047422517 = weight(abstract_txt:results in 5490) [ClassicSimilarity], result of:
            0.047422517 = score(doc=5490,freq=4.0), product of:
              0.10905973 = queryWeight, product of:
                2.0228622 = boost
                3.4786456 = idf(docFreq=3724, maxDocs=44421)
                0.015498439 = queryNorm
              0.4348307 = fieldWeight in 5490, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.4786456 = idf(docFreq=3724, maxDocs=44421)
                0.0625 = fieldNorm(doc=5490)
          0.1141979 = weight(abstract_txt:reliable in 5490) [ClassicSimilarity], result of:
            0.1141979 = score(doc=5490,freq=1.0), product of:
              0.27170837 = queryWeight, product of:
                2.6069934 = boost
                6.724734 = idf(docFreq=144, maxDocs=44421)
                0.015498439 = queryNorm
              0.42029586 = fieldWeight in 5490, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.724734 = idf(docFreq=144, maxDocs=44421)
                0.0625 = fieldNorm(doc=5490)
          0.07936925 = weight(abstract_txt:search in 5490) [ClassicSimilarity], result of:
            0.07936925 = score(doc=5490,freq=3.0), product of:
              0.20061898 = queryWeight, product of:
                3.5419664 = boost
                3.654598 = idf(docFreq=3123, maxDocs=44421)
                0.015498439 = queryNorm
              0.39562184 = fieldWeight in 5490, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.654598 = idf(docFreq=3123, maxDocs=44421)
                0.0625 = fieldNorm(doc=5490)
        0.28 = coord(7/25)
    
  4. Wichor, M.B.: Variation in number of hits for complex searches in Google Scholar (2016) 0.11
    0.10889707 = sum of:
      0.10889707 = product of:
        0.54448533 = sum of:
          0.037546903 = weight(abstract_txt:therefore in 3909) [ClassicSimilarity], result of:
            0.037546903 = score(doc=3909,freq=1.0), product of:
              0.08853133 = queryWeight, product of:
                1.0522573 = boost
                5.428591 = idf(docFreq=529, maxDocs=44421)
                0.015498439 = queryNorm
              0.42410865 = fieldWeight in 3909, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.428591 = idf(docFreq=529, maxDocs=44421)
                0.078125 = fieldNorm(doc=3909)
          0.15760976 = weight(abstract_txt:unreliable in 3909) [ClassicSimilarity], result of:
            0.15760976 = score(doc=3909,freq=1.0), product of:
              0.23037551 = queryWeight, product of:
                1.697429 = boost
                8.757029 = idf(docFreq=18, maxDocs=44421)
                0.015498439 = queryNorm
              0.6841428 = fieldWeight in 3909, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.757029 = idf(docFreq=18, maxDocs=44421)
                0.078125 = fieldNorm(doc=3909)
          0.066274986 = weight(abstract_txt:results in 3909) [ClassicSimilarity], result of:
            0.066274986 = score(doc=3909,freq=5.0), product of:
              0.10905973 = queryWeight, product of:
                2.0228622 = boost
                3.4786456 = idf(docFreq=3724, maxDocs=44421)
                0.015498439 = queryNorm
              0.6076944 = fieldWeight in 3909, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                3.4786456 = idf(docFreq=3724, maxDocs=44421)
                0.078125 = fieldNorm(doc=3909)
          0.14274737 = weight(abstract_txt:reliable in 3909) [ClassicSimilarity], result of:
            0.14274737 = score(doc=3909,freq=1.0), product of:
              0.27170837 = queryWeight, product of:
                2.6069934 = boost
                6.724734 = idf(docFreq=144, maxDocs=44421)
                0.015498439 = queryNorm
              0.5253698 = fieldWeight in 3909, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.724734 = idf(docFreq=144, maxDocs=44421)
                0.078125 = fieldNorm(doc=3909)
          0.14030634 = weight(abstract_txt:search in 3909) [ClassicSimilarity], result of:
            0.14030634 = score(doc=3909,freq=6.0), product of:
              0.20061898 = queryWeight, product of:
                3.5419664 = boost
                3.654598 = idf(docFreq=3123, maxDocs=44421)
                0.015498439 = queryNorm
              0.6993672 = fieldWeight in 3909, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                3.654598 = idf(docFreq=3123, maxDocs=44421)
                0.078125 = fieldNorm(doc=3909)
        0.2 = coord(5/25)
    
  5. Web search engine research (2012) 0.10
    0.09920175 = sum of:
      0.09920175 = product of:
        0.41334063 = sum of:
          0.06016641 = weight(abstract_txt:engines in 1478) [ClassicSimilarity], result of:
            0.06016641 = score(doc=1478,freq=3.0), product of:
              0.08405752 = queryWeight, product of:
                1.0253254 = boost
                5.2896495 = idf(docFreq=608, maxDocs=44421)
                0.015498439 = queryNorm
              0.7157767 = fieldWeight in 1478, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.2896495 = idf(docFreq=608, maxDocs=44421)
                0.078125 = fieldNorm(doc=1478)
          0.034899764 = weight(abstract_txt:explores in 1478) [ClassicSimilarity], result of:
            0.034899764 = score(doc=1478,freq=1.0), product of:
              0.08431973 = queryWeight, product of:
                1.0269234 = boost
                5.2978935 = idf(docFreq=603, maxDocs=44421)
                0.015498439 = queryNorm
              0.41389793 = fieldWeight in 1478, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2978935 = idf(docFreq=603, maxDocs=44421)
                0.078125 = fieldNorm(doc=1478)
          0.029611588 = weight(abstract_txt:research in 1478) [ClassicSimilarity], result of:
            0.029611588 = score(doc=1478,freq=4.0), product of:
              0.059980772 = queryWeight, product of:
                1.2248826 = boost
                3.159582 = idf(docFreq=5124, maxDocs=44421)
                0.015498439 = queryNorm
              0.49368468 = fieldWeight in 1478, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.159582 = idf(docFreq=5124, maxDocs=44421)
                0.078125 = fieldNorm(doc=1478)
          0.074907444 = weight(abstract_txt:reliability in 1478) [ClassicSimilarity], result of:
            0.074907444 = score(doc=1478,freq=1.0), product of:
              0.14030212 = queryWeight, product of:
                1.3246635 = boost
                6.8339334 = idf(docFreq=129, maxDocs=44421)
                0.015498439 = queryNorm
              0.53390104 = fieldWeight in 1478, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.8339334 = idf(docFreq=129, maxDocs=44421)
                0.078125 = fieldNorm(doc=1478)
          0.04191598 = weight(abstract_txt:results in 1478) [ClassicSimilarity], result of:
            0.04191598 = score(doc=1478,freq=2.0), product of:
              0.10905973 = queryWeight, product of:
                2.0228622 = boost
                3.4786456 = idf(docFreq=3724, maxDocs=44421)
                0.015498439 = queryNorm
              0.38433966 = fieldWeight in 1478, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.4786456 = idf(docFreq=3724, maxDocs=44421)
                0.078125 = fieldNorm(doc=1478)
          0.17183946 = weight(abstract_txt:search in 1478) [ClassicSimilarity], result of:
            0.17183946 = score(doc=1478,freq=9.0), product of:
              0.20061898 = queryWeight, product of:
                3.5419664 = boost
                3.654598 = idf(docFreq=3123, maxDocs=44421)
                0.015498439 = queryNorm
              0.8565464 = fieldWeight in 1478, product of:
                3.0 = tf(freq=9.0), with freq of:
                  9.0 = termFreq=9.0
                3.654598 = idf(docFreq=3123, maxDocs=44421)
                0.078125 = fieldNorm(doc=1478)
        0.24 = coord(6/25)