Document (#22808)

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
    5.3459234 = sum of:
      5.3459234 = weight(author_txt:nicholson in 2917) [ClassicSimilarity], result of:
        5.3459234 = fieldWeight in 2917, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.553477 = idf(docFreq=21, maxDocs=41962)
          0.625 = fieldNorm(doc=2917)
    
  2. Nicholson, D.: Cataloguing the Internet : CATRIONA feasibility study (1995) 5.35
    5.3459234 = sum of:
      5.3459234 = weight(author_txt:nicholson in 6365) [ClassicSimilarity], result of:
        5.3459234 = fieldWeight in 6365, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.553477 = idf(docFreq=21, maxDocs=41962)
          0.625 = fieldNorm(doc=6365)
    
  3. Nicholson, S.: ¬A proposal for categorization and nomenclature for Web search tools (2000) 5.35
    5.3459234 = sum of:
      5.3459234 = weight(author_txt:nicholson in 104) [ClassicSimilarity], result of:
        5.3459234 = fieldWeight in 104, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.553477 = idf(docFreq=21, maxDocs=41962)
          0.625 = fieldNorm(doc=104)
    
  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
    5.3459234 = sum of:
      5.3459234 = weight(author_txt:nicholson in 2868) [ClassicSimilarity], result of:
        5.3459234 = fieldWeight in 2868, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.553477 = idf(docFreq=21, maxDocs=41962)
          0.625 = fieldNorm(doc=2868)
    
  5. Nicholson, D.: Interpretive journeys and METS : determining requirements for the effective management of complex digital objects in a National Park (2006) 5.35
    5.3459234 = sum of:
      5.3459234 = weight(author_txt:nicholson in 598) [ClassicSimilarity], result of:
        5.3459234 = fieldWeight in 598, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.553477 = idf(docFreq=21, maxDocs=41962)
          0.625 = fieldNorm(doc=598)
    

Similar documents (content)

  1. Nicholson, S.: ¬A proposal for categorization and nomenclature for Web search tools (2000) 0.14
    0.13892443 = sum of:
      0.13892443 = product of:
        0.69462216 = sum of:
          0.022090856 = weight(abstract_txt:research in 104) [ClassicSimilarity], result of:
            0.022090856 = score(doc=104,freq=1.0), product of:
              0.06239686 = queryWeight, product of:
                1.2497919 = boost
                3.2369182 = idf(docFreq=4480, maxDocs=41962)
                0.015423869 = queryNorm
              0.35403794 = fieldWeight in 104, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.2369182 = idf(docFreq=4480, maxDocs=41962)
                0.109375 = fieldNorm(doc=104)
          0.11681537 = weight(abstract_txt:tools in 104) [ClassicSimilarity], result of:
            0.11681537 = score(doc=104,freq=4.0), product of:
              0.119307496 = queryWeight, product of:
                1.7281848 = boost
                4.4759398 = idf(docFreq=1297, maxDocs=41962)
                0.015423869 = queryNorm
              0.9791118 = fieldWeight in 104, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.4759398 = idf(docFreq=1297, maxDocs=41962)
                0.109375 = fieldNorm(doc=104)
          0.29710898 = weight(abstract_txt:replicable in 104) [ClassicSimilarity], result of:
            0.29710898 = score(doc=104,freq=1.0), product of:
              0.28008395 = queryWeight, product of:
                1.8723431 = boost
                9.698609 = idf(docFreq=6, maxDocs=41962)
                0.015423869 = queryNorm
              1.0607854 = fieldWeight in 104, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.698609 = idf(docFreq=6, maxDocs=41962)
                0.109375 = fieldNorm(doc=104)
          0.08032812 = weight(abstract_txt:tool in 104) [ClassicSimilarity], result of:
            0.08032812 = score(doc=104,freq=1.0), product of:
              0.14754781 = queryWeight, product of:
                1.9218643 = boost
                4.977563 = idf(docFreq=785, maxDocs=41962)
                0.015423869 = queryNorm
              0.54442096 = fieldWeight in 104, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.977563 = idf(docFreq=785, maxDocs=41962)
                0.109375 = fieldNorm(doc=104)
          0.17827888 = weight(abstract_txt:search in 104) [ClassicSimilarity], result of:
            0.17827888 = score(doc=104,freq=5.0), product of:
              0.1992558 = queryWeight, product of:
                3.5312772 = boost
                3.6583548 = idf(docFreq=2939, maxDocs=41962)
                0.015423869 = queryNorm
              0.89472365 = fieldWeight in 104, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                3.6583548 = idf(docFreq=2939, maxDocs=41962)
                0.109375 = fieldNorm(doc=104)
        0.2 = coord(5/25)
    
  2. Vidmar, D.; Anderson, C.: History of Internet search tools (2002) 0.13
    0.13207862 = sum of:
      0.13207862 = product of:
        0.47170937 = sum of:
          0.024275849 = weight(abstract_txt:engines in 259) [ClassicSimilarity], result of:
            0.024275849 = score(doc=259,freq=1.0), product of:
              0.08371707 = queryWeight, product of:
                1.0236425 = boost
                5.302398 = idf(docFreq=567, maxDocs=41962)
                0.015423869 = queryNorm
              0.2899749 = fieldWeight in 259, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.302398 = idf(docFreq=567, maxDocs=41962)
                0.0546875 = fieldNorm(doc=259)
          0.011045428 = weight(abstract_txt:research in 259) [ClassicSimilarity], result of:
            0.011045428 = score(doc=259,freq=1.0), product of:
              0.06239686 = queryWeight, product of:
                1.2497919 = boost
                3.2369182 = idf(docFreq=4480, maxDocs=41962)
                0.015423869 = queryNorm
              0.17701897 = fieldWeight in 259, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.2369182 = idf(docFreq=4480, maxDocs=41962)
                0.0546875 = fieldNorm(doc=259)
          0.058407687 = weight(abstract_txt:tools in 259) [ClassicSimilarity], result of:
            0.058407687 = score(doc=259,freq=4.0), product of:
              0.119307496 = queryWeight, product of:
                1.7281848 = boost
                4.4759398 = idf(docFreq=1297, maxDocs=41962)
                0.015423869 = queryNorm
              0.4895559 = fieldWeight in 259, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.4759398 = idf(docFreq=1297, maxDocs=41962)
                0.0546875 = fieldNorm(doc=259)
          0.17697164 = weight(abstract_txt:iterations in 259) [ClassicSimilarity], result of:
            0.17697164 = score(doc=259,freq=2.0), product of:
              0.24981788 = queryWeight, product of:
                1.7682884 = boost
                9.159613 = idf(docFreq=11, maxDocs=41962)
                0.015423869 = queryNorm
              0.70840263 = fieldWeight in 259, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                9.159613 = idf(docFreq=11, maxDocs=41962)
                0.0546875 = fieldNorm(doc=259)
          0.04016406 = weight(abstract_txt:tool in 259) [ClassicSimilarity], result of:
            0.04016406 = score(doc=259,freq=1.0), product of:
              0.14754781 = queryWeight, product of:
                1.9218643 = boost
                4.977563 = idf(docFreq=785, maxDocs=41962)
                0.015423869 = queryNorm
              0.27221048 = fieldWeight in 259, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.977563 = idf(docFreq=785, maxDocs=41962)
                0.0546875 = fieldNorm(doc=259)
          0.06319734 = weight(abstract_txt:dynamic in 259) [ClassicSimilarity], result of:
            0.06319734 = score(doc=259,freq=1.0), product of:
              0.19960599 = queryWeight, product of:
                2.2353375 = boost
                5.789448 = idf(docFreq=348, maxDocs=41962)
                0.015423869 = queryNorm
              0.31661043 = fieldWeight in 259, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.789448 = idf(docFreq=348, maxDocs=41962)
                0.0546875 = fieldNorm(doc=259)
          0.097647354 = weight(abstract_txt:search in 259) [ClassicSimilarity], result of:
            0.097647354 = score(doc=259,freq=6.0), product of:
              0.1992558 = queryWeight, product of:
                3.5312772 = boost
                3.6583548 = idf(docFreq=2939, maxDocs=41962)
                0.015423869 = queryNorm
              0.4900603 = fieldWeight in 259, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                3.6583548 = idf(docFreq=2939, maxDocs=41962)
                0.0546875 = fieldNorm(doc=259)
        0.28 = coord(7/25)
    
  3. Thelwall, M.: Results from a web impact factor crawler (2001) 0.11
    0.11228657 = sum of:
      0.11228657 = product of:
        0.40102345 = sum of:
          0.04805372 = weight(abstract_txt:engines in 491) [ClassicSimilarity], result of:
            0.04805372 = score(doc=491,freq=3.0), product of:
              0.08371707 = queryWeight, product of:
                1.0236425 = boost
                5.302398 = idf(docFreq=567, maxDocs=41962)
                0.015423869 = queryNorm
              0.57400143 = fieldWeight in 491, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.302398 = idf(docFreq=567, maxDocs=41962)
                0.0625 = fieldNorm(doc=491)
          0.03047095 = weight(abstract_txt:therefore in 491) [ClassicSimilarity], result of:
            0.03047095 = score(doc=491,freq=1.0), product of:
              0.08911697 = queryWeight, product of:
                1.0561401 = boost
                5.4707336 = idf(docFreq=479, maxDocs=41962)
                0.015423869 = queryNorm
              0.34192085 = fieldWeight in 491, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.4707336 = idf(docFreq=479, maxDocs=41962)
                0.0625 = fieldNorm(doc=491)
          0.017852107 = weight(abstract_txt:research in 491) [ClassicSimilarity], result of:
            0.017852107 = score(doc=491,freq=2.0), product of:
              0.06239686 = queryWeight, product of:
                1.2497919 = boost
                3.2369182 = idf(docFreq=4480, maxDocs=41962)
                0.015423869 = queryNorm
              0.28610584 = fieldWeight in 491, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.2369182 = idf(docFreq=4480, maxDocs=41962)
                0.0625 = fieldNorm(doc=491)
          0.061830204 = weight(abstract_txt:reliability in 491) [ClassicSimilarity], result of:
            0.061830204 = score(doc=491,freq=1.0), product of:
              0.14283574 = queryWeight, product of:
                1.3370873 = boost
                6.9260206 = idf(docFreq=111, maxDocs=41962)
                0.015423869 = queryNorm
              0.4328763 = fieldWeight in 491, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.9260206 = idf(docFreq=111, maxDocs=41962)
                0.0625 = fieldNorm(doc=491)
          0.048838567 = weight(abstract_txt:results in 491) [ClassicSimilarity], result of:
            0.048838567 = score(doc=491,freq=4.0), product of:
              0.11089163 = queryWeight, product of:
                2.0405693 = boost
                3.5233364 = idf(docFreq=3364, maxDocs=41962)
                0.015423869 = queryNorm
              0.44041705 = fieldWeight in 491, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.5233364 = idf(docFreq=3364, maxDocs=41962)
                0.0625 = fieldNorm(doc=491)
          0.11506691 = weight(abstract_txt:reliable in 491) [ClassicSimilarity], result of:
            0.11506691 = score(doc=491,freq=1.0), product of:
              0.27227852 = queryWeight, product of:
                2.6107364 = boost
                6.761718 = idf(docFreq=131, maxDocs=41962)
                0.015423869 = queryNorm
              0.42260736 = fieldWeight in 491, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.761718 = idf(docFreq=131, maxDocs=41962)
                0.0625 = fieldNorm(doc=491)
          0.07891098 = weight(abstract_txt:search in 491) [ClassicSimilarity], result of:
            0.07891098 = score(doc=491,freq=3.0), product of:
              0.1992558 = queryWeight, product of:
                3.5312772 = boost
                3.6583548 = idf(docFreq=2939, maxDocs=41962)
                0.015423869 = queryNorm
              0.39602852 = fieldWeight in 491, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.6583548 = idf(docFreq=2939, maxDocs=41962)
                0.0625 = fieldNorm(doc=491)
        0.28 = coord(7/25)
    
  4. Wichor, M.B.: Variation in number of hits for complex searches in Google Scholar (2016) 0.11
    0.109762564 = sum of:
      0.109762564 = product of:
        0.5488128 = sum of:
          0.038088687 = weight(abstract_txt:therefore in 4910) [ClassicSimilarity], result of:
            0.038088687 = score(doc=4910,freq=1.0), product of:
              0.08911697 = queryWeight, product of:
                1.0561401 = boost
                5.4707336 = idf(docFreq=479, maxDocs=41962)
                0.015423869 = queryNorm
              0.42740107 = fieldWeight in 4910, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.4707336 = idf(docFreq=479, maxDocs=41962)
                0.078125 = fieldNorm(doc=4910)
          0.15914032 = weight(abstract_txt:unreliable in 4910) [ClassicSimilarity], result of:
            0.15914032 = score(doc=4910,freq=1.0), product of:
              0.2311798 = queryWeight, product of:
                1.7010468 = boost
                8.811306 = idf(docFreq=16, maxDocs=41962)
                0.015423869 = queryNorm
              0.6883833 = fieldWeight in 4910, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.811306 = idf(docFreq=16, maxDocs=41962)
                0.078125 = fieldNorm(doc=4910)
          0.06825397 = weight(abstract_txt:results in 4910) [ClassicSimilarity], result of:
            0.06825397 = score(doc=4910,freq=5.0), product of:
              0.11089163 = queryWeight, product of:
                2.0405693 = boost
                3.5233364 = idf(docFreq=3364, maxDocs=41962)
                0.015423869 = queryNorm
              0.6155015 = fieldWeight in 4910, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                3.5233364 = idf(docFreq=3364, maxDocs=41962)
                0.078125 = fieldNorm(doc=4910)
          0.14383364 = weight(abstract_txt:reliable in 4910) [ClassicSimilarity], result of:
            0.14383364 = score(doc=4910,freq=1.0), product of:
              0.27227852 = queryWeight, product of:
                2.6107364 = boost
                6.761718 = idf(docFreq=131, maxDocs=41962)
                0.015423869 = queryNorm
              0.5282592 = fieldWeight in 4910, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.761718 = idf(docFreq=131, maxDocs=41962)
                0.078125 = fieldNorm(doc=4910)
          0.13949622 = weight(abstract_txt:search in 4910) [ClassicSimilarity], result of:
            0.13949622 = score(doc=4910,freq=6.0), product of:
              0.1992558 = queryWeight, product of:
                3.5312772 = boost
                3.6583548 = idf(docFreq=2939, maxDocs=41962)
                0.015423869 = queryNorm
              0.7000861 = fieldWeight in 4910, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                3.6583548 = idf(docFreq=2939, maxDocs=41962)
                0.078125 = fieldNorm(doc=4910)
        0.2 = coord(5/25)
    
  5. Web search engine research (2012) 0.10
    0.100510955 = sum of:
      0.100510955 = product of:
        0.41879565 = sum of:
          0.060067147 = weight(abstract_txt:engines in 2479) [ClassicSimilarity], result of:
            0.060067147 = score(doc=2479,freq=3.0), product of:
              0.08371707 = queryWeight, product of:
                1.0236425 = boost
                5.302398 = idf(docFreq=567, maxDocs=41962)
                0.015423869 = queryNorm
              0.71750176 = fieldWeight in 2479, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.302398 = idf(docFreq=567, maxDocs=41962)
                0.078125 = fieldNorm(doc=2479)
          0.035867512 = weight(abstract_txt:explores in 2479) [ClassicSimilarity], result of:
            0.035867512 = score(doc=2479,freq=1.0), product of:
              0.085617766 = queryWeight, product of:
                1.0351976 = boost
                5.362253 = idf(docFreq=534, maxDocs=41962)
                0.015423869 = queryNorm
              0.41892603 = fieldWeight in 2479, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.362253 = idf(docFreq=534, maxDocs=41962)
                0.078125 = fieldNorm(doc=2479)
          0.031558365 = weight(abstract_txt:research in 2479) [ClassicSimilarity], result of:
            0.031558365 = score(doc=2479,freq=4.0), product of:
              0.06239686 = queryWeight, product of:
                1.2497919 = boost
                3.2369182 = idf(docFreq=4480, maxDocs=41962)
                0.015423869 = queryNorm
              0.5057685 = fieldWeight in 2479, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.2369182 = idf(docFreq=4480, maxDocs=41962)
                0.078125 = fieldNorm(doc=2479)
          0.077287756 = weight(abstract_txt:reliability in 2479) [ClassicSimilarity], result of:
            0.077287756 = score(doc=2479,freq=1.0), product of:
              0.14283574 = queryWeight, product of:
                1.3370873 = boost
                6.9260206 = idf(docFreq=111, maxDocs=41962)
                0.015423869 = queryNorm
              0.5410954 = fieldWeight in 2479, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.9260206 = idf(docFreq=111, maxDocs=41962)
                0.078125 = fieldNorm(doc=2479)
          0.0431676 = weight(abstract_txt:results in 2479) [ClassicSimilarity], result of:
            0.0431676 = score(doc=2479,freq=2.0), product of:
              0.11089163 = queryWeight, product of:
                2.0405693 = boost
                3.5233364 = idf(docFreq=3364, maxDocs=41962)
                0.015423869 = queryNorm
              0.38927734 = fieldWeight in 2479, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5233364 = idf(docFreq=3364, maxDocs=41962)
                0.078125 = fieldNorm(doc=2479)
          0.17084728 = weight(abstract_txt:search in 2479) [ClassicSimilarity], result of:
            0.17084728 = score(doc=2479,freq=9.0), product of:
              0.1992558 = queryWeight, product of:
                3.5312772 = boost
                3.6583548 = idf(docFreq=2939, maxDocs=41962)
                0.015423869 = queryNorm
              0.8574269 = fieldWeight in 2479, product of:
                3.0 = tf(freq=9.0), with freq of:
                  9.0 = termFreq=9.0
                3.6583548 = idf(docFreq=2939, maxDocs=41962)
                0.078125 = fieldNorm(doc=2479)
        0.24 = coord(6/25)