Document (#7221)

Author
Chang, R.
Title
Keyword searching and indexing
Source
Technical services quarterly. 10(1993) no.4, S.75-86
Year
1993
Abstract
Explains how a computer indexing system works. Reviews fundamentals of how data are stored and retrieved by computers. Describes B-Tree and B+-Tree indexing structures. Gives basic keyword searching techniques that the user must apply to make use of the indexing programs. The demand for keyword retrieval is increasing and librarians should expect to see the keyword-indexing feature become commonly available
Theme
Retrievalalgorithmen

Similar documents (author)

  1. Chang, R.: DBase, relational data models, and MARC records (1992) 4.80
    4.796544 = sum of:
      4.796544 = weight(author_txt:chang in 5054) [ClassicSimilarity], result of:
        4.796544 = score(doc=5054,freq=1.0), product of:
          1.0000001 = queryWeight, product of:
            7.6744695 = idf(docFreq=54, maxDocs=43556)
            0.13030218 = queryNorm
          4.7965436 = fieldWeight in 5054, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.6744695 = idf(docFreq=54, maxDocs=43556)
            0.625 = fieldNorm(doc=5054)
    
  2. Chang, R.: ¬The development of indexing technology (1993) 4.80
    4.796544 = sum of:
      4.796544 = weight(author_txt:chang in 7021) [ClassicSimilarity], result of:
        4.796544 = score(doc=7021,freq=1.0), product of:
          1.0000001 = queryWeight, product of:
            7.6744695 = idf(docFreq=54, maxDocs=43556)
            0.13030218 = queryNorm
          4.7965436 = fieldWeight in 7021, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.6744695 = idf(docFreq=54, maxDocs=43556)
            0.625 = fieldNorm(doc=7021)
    
  3. Chang, R.H.: To classify or not to classify? : a new look at an old problem (1989) 4.80
    4.796544 = sum of:
      4.796544 = weight(author_txt:chang in 2576) [ClassicSimilarity], result of:
        4.796544 = score(doc=2576,freq=1.0), product of:
          1.0000001 = queryWeight, product of:
            7.6744695 = idf(docFreq=54, maxDocs=43556)
            0.13030218 = queryNorm
          4.7965436 = fieldWeight in 2576, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.6744695 = idf(docFreq=54, maxDocs=43556)
            0.625 = fieldNorm(doc=2576)
    
  4. Chang, S.H.: ¬The current state of Web search engines (1999) 4.80
    4.796544 = sum of:
      4.796544 = weight(author_txt:chang in 1507) [ClassicSimilarity], result of:
        4.796544 = score(doc=1507,freq=1.0), product of:
          1.0000001 = queryWeight, product of:
            7.6744695 = idf(docFreq=54, maxDocs=43556)
            0.13030218 = queryNorm
          4.7965436 = fieldWeight in 1507, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.6744695 = idf(docFreq=54, maxDocs=43556)
            0.625 = fieldNorm(doc=1507)
    
  5. Chang, M.: ¬An electronic finding aid using extensible markup language (XML) and encoded archival description (EAD) (2000) 4.80
    4.796544 = sum of:
      4.796544 = weight(author_txt:chang in 884) [ClassicSimilarity], result of:
        4.796544 = score(doc=884,freq=1.0), product of:
          1.0000001 = queryWeight, product of:
            7.6744695 = idf(docFreq=54, maxDocs=43556)
            0.13030218 = queryNorm
          4.7965436 = fieldWeight in 884, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.6744695 = idf(docFreq=54, maxDocs=43556)
            0.625 = fieldNorm(doc=884)
    

Similar documents (content)

  1. Chang, R.: ¬The development of indexing technology (1993) 0.23
    0.22649693 = sum of:
      0.22649693 = product of:
        0.94373727 = sum of:
          0.05889215 = weight(abstract_txt:reviews in 7021) [ClassicSimilarity], result of:
            0.05889215 = score(doc=7021,freq=1.0), product of:
              0.095049255 = queryWeight, product of:
                1.0614777 = boost
                4.956769 = idf(docFreq=832, maxDocs=43556)
                0.01806505 = queryNorm
              0.6195961 = fieldWeight in 7021, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.956769 = idf(docFreq=832, maxDocs=43556)
                0.125 = fieldNorm(doc=7021)
          0.059674248 = weight(abstract_txt:basic in 7021) [ClassicSimilarity], result of:
            0.059674248 = score(doc=7021,freq=1.0), product of:
              0.09588892 = queryWeight, product of:
                1.0661559 = boost
                4.978615 = idf(docFreq=814, maxDocs=43556)
                0.01806505 = queryNorm
              0.62232685 = fieldWeight in 7021, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.978615 = idf(docFreq=814, maxDocs=43556)
                0.125 = fieldNorm(doc=7021)
          0.0653126 = weight(abstract_txt:structures in 7021) [ClassicSimilarity], result of:
            0.0653126 = score(doc=7021,freq=1.0), product of:
              0.10183767 = queryWeight, product of:
                1.0987294 = boost
                5.1307225 = idf(docFreq=699, maxDocs=43556)
                0.01806505 = queryNorm
              0.6413403 = fieldWeight in 7021, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.1307225 = idf(docFreq=699, maxDocs=43556)
                0.125 = fieldNorm(doc=7021)
          0.12376408 = weight(abstract_txt:stored in 7021) [ClassicSimilarity], result of:
            0.12376408 = score(doc=7021,freq=1.0), product of:
              0.15594575 = queryWeight, product of:
                1.359638 = boost
                6.349084 = idf(docFreq=206, maxDocs=43556)
                0.01806505 = queryNorm
              0.7936355 = fieldWeight in 7021, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.349084 = idf(docFreq=206, maxDocs=43556)
                0.125 = fieldNorm(doc=7021)
          0.43724054 = weight(abstract_txt:tree in 7021) [ClassicSimilarity], result of:
            0.43724054 = score(doc=7021,freq=2.0), product of:
              0.36173517 = queryWeight, product of:
                2.9285111 = boost
                6.8376155 = idf(docFreq=126, maxDocs=43556)
                0.01806505 = queryNorm
              1.208731 = fieldWeight in 7021, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.8376155 = idf(docFreq=126, maxDocs=43556)
                0.125 = fieldNorm(doc=7021)
          0.19885369 = weight(abstract_txt:indexing in 7021) [ClassicSimilarity], result of:
            0.19885369 = score(doc=7021,freq=1.0), product of:
              0.36581054 = queryWeight, product of:
                4.656393 = boost
                4.3487797 = idf(docFreq=1529, maxDocs=43556)
                0.01806505 = queryNorm
              0.54359746 = fieldWeight in 7021, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.3487797 = idf(docFreq=1529, maxDocs=43556)
                0.125 = fieldNorm(doc=7021)
        0.24 = coord(6/25)
    
  2. Prasher, R.G.: Index and indexing (1990) 0.14
    0.13946082 = sum of:
      0.13946082 = product of:
        1.1621735 = sum of:
          0.073615186 = weight(abstract_txt:reviews in 4774) [ClassicSimilarity], result of:
            0.073615186 = score(doc=4774,freq=1.0), product of:
              0.095049255 = queryWeight, product of:
                1.0614777 = boost
                4.956769 = idf(docFreq=832, maxDocs=43556)
                0.01806505 = queryNorm
              0.7744951 = fieldWeight in 4774, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.956769 = idf(docFreq=832, maxDocs=43556)
                0.15625 = fieldNorm(doc=4774)
          0.55581295 = weight(abstract_txt:indexing in 4774) [ClassicSimilarity], result of:
            0.55581295 = score(doc=4774,freq=5.0), product of:
              0.36581054 = queryWeight, product of:
                4.656393 = boost
                4.3487797 = idf(docFreq=1529, maxDocs=43556)
                0.01806505 = queryNorm
              1.5194011 = fieldWeight in 4774, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                4.3487797 = idf(docFreq=1529, maxDocs=43556)
                0.15625 = fieldNorm(doc=4774)
          0.5327454 = weight(abstract_txt:keyword in 4774) [ClassicSimilarity], result of:
            0.5327454 = score(doc=4774,freq=1.0), product of:
              0.5645082 = queryWeight, product of:
                5.1737046 = boost
                6.0398955 = idf(docFreq=281, maxDocs=43556)
                0.01806505 = queryNorm
              0.9437337 = fieldWeight in 4774, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.0398955 = idf(docFreq=281, maxDocs=43556)
                0.15625 = fieldNorm(doc=4774)
        0.12 = coord(3/25)
    
  3. Ensor, P.: Knowledge level of users and nonusers of keyword/Boolean searching on an online public access catalog (1992) 0.14
    0.13922614 = sum of:
      0.13922614 = product of:
        0.6961307 = sum of:
          0.036930572 = weight(abstract_txt:librarians in 3289) [ClassicSimilarity], result of:
            0.036930572 = score(doc=3289,freq=1.0), product of:
              0.08435813 = queryWeight, product of:
                4.6696873 = idf(docFreq=1109, maxDocs=43556)
                0.01806505 = queryNorm
              0.43778318 = fieldWeight in 3289, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6696873 = idf(docFreq=1109, maxDocs=43556)
                0.09375 = fieldNorm(doc=3289)
          0.046197794 = weight(abstract_txt:become in 3289) [ClassicSimilarity], result of:
            0.046197794 = score(doc=3289,freq=1.0), product of:
              0.09793782 = queryWeight, product of:
                1.0774863 = boost
                5.0315237 = idf(docFreq=772, maxDocs=43556)
                0.01806505 = queryNorm
              0.47170535 = fieldWeight in 3289, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.0315237 = idf(docFreq=772, maxDocs=43556)
                0.09375 = fieldNorm(doc=3289)
          0.047409996 = weight(abstract_txt:must in 3289) [ClassicSimilarity], result of:
            0.047409996 = score(doc=3289,freq=1.0), product of:
              0.09964363 = queryWeight, product of:
                1.0868292 = boost
                5.0751524 = idf(docFreq=739, maxDocs=43556)
                0.01806505 = queryNorm
              0.47579554 = fieldWeight in 3289, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.0751524 = idf(docFreq=739, maxDocs=43556)
                0.09375 = fieldNorm(doc=3289)
          0.11354287 = weight(abstract_txt:searching in 3289) [ClassicSimilarity], result of:
            0.11354287 = score(doc=3289,freq=4.0), product of:
              0.14156835 = queryWeight, product of:
                1.8320385 = boost
                4.2775235 = idf(docFreq=1642, maxDocs=43556)
                0.01806505 = queryNorm
              0.8020357 = fieldWeight in 3289, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.2775235 = idf(docFreq=1642, maxDocs=43556)
                0.09375 = fieldNorm(doc=3289)
          0.45204946 = weight(abstract_txt:keyword in 3289) [ClassicSimilarity], result of:
            0.45204946 = score(doc=3289,freq=2.0), product of:
              0.5645082 = queryWeight, product of:
                5.1737046 = boost
                6.0398955 = idf(docFreq=281, maxDocs=43556)
                0.01806505 = queryNorm
              0.8007846 = fieldWeight in 3289, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.0398955 = idf(docFreq=281, maxDocs=43556)
                0.09375 = fieldNorm(doc=3289)
        0.2 = coord(5/25)
    
  4. Richardson, J.: Pointing the index finger (1994) 0.13
    0.13461794 = sum of:
      0.13461794 = product of:
        1.1218162 = sum of:
          0.09193652 = weight(abstract_txt:gives in 7460) [ClassicSimilarity], result of:
            0.09193652 = score(doc=7460,freq=1.0), product of:
              0.110228986 = queryWeight, product of:
                1.1431005 = boost
                5.337922 = idf(docFreq=568, maxDocs=43556)
                0.01806505 = queryNorm
              0.8340503 = fieldWeight in 7460, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.337922 = idf(docFreq=568, maxDocs=43556)
                0.15625 = fieldNorm(doc=7460)
          0.4971342 = weight(abstract_txt:indexing in 7460) [ClassicSimilarity], result of:
            0.4971342 = score(doc=7460,freq=4.0), product of:
              0.36581054 = queryWeight, product of:
                4.656393 = boost
                4.3487797 = idf(docFreq=1529, maxDocs=43556)
                0.01806505 = queryNorm
              1.3589936 = fieldWeight in 7460, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.3487797 = idf(docFreq=1529, maxDocs=43556)
                0.15625 = fieldNorm(doc=7460)
          0.5327454 = weight(abstract_txt:keyword in 7460) [ClassicSimilarity], result of:
            0.5327454 = score(doc=7460,freq=1.0), product of:
              0.5645082 = queryWeight, product of:
                5.1737046 = boost
                6.0398955 = idf(docFreq=281, maxDocs=43556)
                0.01806505 = queryNorm
              0.9437337 = fieldWeight in 7460, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.0398955 = idf(docFreq=281, maxDocs=43556)
                0.15625 = fieldNorm(doc=7460)
        0.12 = coord(3/25)
    
  5. Zhang, L.; Liu, Q.L.; Zhang, J.; Wang, H.F.; Pan, Y.; Yu, Y.: Semplore: an IR approach to scalable hybrid query of Semantic Web data (2007) 0.13
    0.12515907 = sum of:
      0.12515907 = product of:
        0.6257953 = sum of:
          0.031606663 = weight(abstract_txt:must in 2229) [ClassicSimilarity], result of:
            0.031606663 = score(doc=2229,freq=1.0), product of:
              0.09964363 = queryWeight, product of:
                1.0868292 = boost
                5.0751524 = idf(docFreq=739, maxDocs=43556)
                0.01806505 = queryNorm
              0.31719702 = fieldWeight in 2229, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.0751524 = idf(docFreq=739, maxDocs=43556)
                0.0625 = fieldNorm(doc=2229)
          0.0326563 = weight(abstract_txt:structures in 2229) [ClassicSimilarity], result of:
            0.0326563 = score(doc=2229,freq=1.0), product of:
              0.10183767 = queryWeight, product of:
                1.0987294 = boost
                5.1307225 = idf(docFreq=699, maxDocs=43556)
                0.01806505 = queryNorm
              0.32067016 = fieldWeight in 2229, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.1307225 = idf(docFreq=699, maxDocs=43556)
                0.0625 = fieldNorm(doc=2229)
          0.03784762 = weight(abstract_txt:searching in 2229) [ClassicSimilarity], result of:
            0.03784762 = score(doc=2229,freq=1.0), product of:
              0.14156835 = queryWeight, product of:
                1.8320385 = boost
                4.2775235 = idf(docFreq=1642, maxDocs=43556)
                0.01806505 = queryNorm
              0.26734522 = fieldWeight in 2229, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.2775235 = idf(docFreq=1642, maxDocs=43556)
                0.0625 = fieldNorm(doc=2229)
          0.15458788 = weight(abstract_txt:tree in 2229) [ClassicSimilarity], result of:
            0.15458788 = score(doc=2229,freq=1.0), product of:
              0.36173517 = queryWeight, product of:
                2.9285111 = boost
                6.8376155 = idf(docFreq=126, maxDocs=43556)
                0.01806505 = queryNorm
              0.42735097 = fieldWeight in 2229, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.8376155 = idf(docFreq=126, maxDocs=43556)
                0.0625 = fieldNorm(doc=2229)
          0.36909685 = weight(abstract_txt:keyword in 2229) [ClassicSimilarity], result of:
            0.36909685 = score(doc=2229,freq=3.0), product of:
              0.5645082 = queryWeight, product of:
                5.1737046 = boost
                6.0398955 = idf(docFreq=281, maxDocs=43556)
                0.01806505 = queryNorm
              0.65383786 = fieldWeight in 2229, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.0398955 = idf(docFreq=281, maxDocs=43556)
                0.0625 = fieldNorm(doc=2229)
        0.2 = coord(5/25)