Document (#2685)

Author
Cosgrove, S.J.
Weimanm, J.M.
Title
Expert system technology applied to item classification
Source
Library hi tech. 10(1992) no.1/2, S.33-40
Year
1992
Abstract
Description of how the n-cube expert system development tool can assist in item classification using the UDC standard. The n-cube makes use of a tree classification structure with associated rules and default inheritance features. Any information known about a particular classification is a combination of the defaults known about that class, as well as the defaults associated with any of its parent classes. As a result, many of the problems associated with simple rule-based systems are overcome

Similar documents (content)

  1. Gowtham, M.S.; Kamat, S.K.: ¬An expert system as a tool to classification (1995) 0.14
    0.14213298 = sum of:
      0.14213298 = product of:
        0.5076178 = sum of:
          0.036628418 = weight(abstract_txt:rules in 3735) [ClassicSimilarity], result of:
            0.036628418 = score(doc=3735,freq=1.0), product of:
              0.08952554 = queryWeight, product of:
                1.0831008 = boost
                5.236983 = idf(docFreq=638, maxDocs=44218)
                0.015783269 = queryNorm
              0.40913928 = fieldWeight in 3735, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.236983 = idf(docFreq=638, maxDocs=44218)
                0.078125 = fieldNorm(doc=3735)
          0.07376038 = weight(abstract_txt:class in 3735) [ClassicSimilarity], result of:
            0.07376038 = score(doc=3735,freq=2.0), product of:
              0.11331141 = queryWeight, product of:
                1.2185187 = boost
                5.8917522 = idf(docFreq=331, maxDocs=44218)
                0.015783269 = queryNorm
              0.6509528 = fieldWeight in 3735, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.8917522 = idf(docFreq=331, maxDocs=44218)
                0.078125 = fieldNorm(doc=3735)
          0.07383451 = weight(abstract_txt:rule in 3735) [ClassicSimilarity], result of:
            0.07383451 = score(doc=3735,freq=1.0), product of:
              0.14285906 = queryWeight, product of:
                1.368199 = boost
                6.615483 = idf(docFreq=160, maxDocs=44218)
                0.015783269 = queryNorm
              0.5168346 = fieldWeight in 3735, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.615483 = idf(docFreq=160, maxDocs=44218)
                0.078125 = fieldNorm(doc=3735)
          0.033880297 = weight(abstract_txt:system in 3735) [ClassicSimilarity], result of:
            0.033880297 = score(doc=3735,freq=3.0), product of:
              0.07424535 = queryWeight, product of:
                1.3949062 = boost
                3.3723085 = idf(docFreq=4123, maxDocs=44218)
                0.015783269 = queryNorm
              0.45632887 = fieldWeight in 3735, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.3723085 = idf(docFreq=4123, maxDocs=44218)
                0.078125 = fieldNorm(doc=3735)
          0.011950253 = weight(abstract_txt:with in 3735) [ClassicSimilarity], result of:
            0.011950253 = score(doc=3735,freq=1.0), product of:
              0.06119182 = queryWeight, product of:
                1.5509675 = boost
                2.4997334 = idf(docFreq=9868, maxDocs=44218)
                0.015783269 = queryNorm
              0.19529167 = fieldWeight in 3735, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.4997334 = idf(docFreq=9868, maxDocs=44218)
                0.078125 = fieldNorm(doc=3735)
          0.16515741 = weight(abstract_txt:expert in 3735) [ClassicSimilarity], result of:
            0.16515741 = score(doc=3735,freq=3.0), product of:
              0.21345344 = queryWeight, product of:
                2.3651679 = boost
                5.7180014 = idf(docFreq=394, maxDocs=44218)
                0.015783269 = queryNorm
              0.77373976 = fieldWeight in 3735, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.7180014 = idf(docFreq=394, maxDocs=44218)
                0.078125 = fieldNorm(doc=3735)
          0.11240651 = weight(abstract_txt:classification in 3735) [ClassicSimilarity], result of:
            0.11240651 = score(doc=3735,freq=3.0), product of:
              0.20808564 = queryWeight, product of:
                3.3025274 = boost
                3.9920752 = idf(docFreq=2218, maxDocs=44218)
                0.015783269 = queryNorm
              0.5401935 = fieldWeight in 3735, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.9920752 = idf(docFreq=2218, maxDocs=44218)
                0.078125 = fieldNorm(doc=3735)
        0.28 = coord(7/25)
    
  2. Hassanien, A.-E.: Rough set approach for attribute reduction and rule generation : a case of patients with suspected breast cancer (2004) 0.14
    0.14048429 = sum of:
      0.14048429 = product of:
        0.43901342 = sum of:
          0.02476936 = weight(abstract_txt:tool in 2883) [ClassicSimilarity], result of:
            0.02476936 = score(doc=2883,freq=1.0), product of:
              0.08003588 = queryWeight, product of:
                1.0240891 = boost
                4.951651 = idf(docFreq=849, maxDocs=44218)
                0.015783269 = queryNorm
              0.3094782 = fieldWeight in 2883, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.951651 = idf(docFreq=849, maxDocs=44218)
                0.0625 = fieldNorm(doc=2883)
          0.058605466 = weight(abstract_txt:rules in 2883) [ClassicSimilarity], result of:
            0.058605466 = score(doc=2883,freq=4.0), product of:
              0.08952554 = queryWeight, product of:
                1.0831008 = boost
                5.236983 = idf(docFreq=638, maxDocs=44218)
                0.015783269 = queryNorm
              0.65462285 = fieldWeight in 2883, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.236983 = idf(docFreq=638, maxDocs=44218)
                0.0625 = fieldNorm(doc=2883)
          0.041725174 = weight(abstract_txt:class in 2883) [ClassicSimilarity], result of:
            0.041725174 = score(doc=2883,freq=1.0), product of:
              0.11331141 = queryWeight, product of:
                1.2185187 = boost
                5.8917522 = idf(docFreq=331, maxDocs=44218)
                0.015783269 = queryNorm
              0.36823452 = fieldWeight in 2883, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.8917522 = idf(docFreq=331, maxDocs=44218)
                0.0625 = fieldNorm(doc=2883)
          0.009560202 = weight(abstract_txt:with in 2883) [ClassicSimilarity], result of:
            0.009560202 = score(doc=2883,freq=1.0), product of:
              0.06119182 = queryWeight, product of:
                1.5509675 = boost
                2.4997334 = idf(docFreq=9868, maxDocs=44218)
                0.015783269 = queryNorm
              0.15623334 = fieldWeight in 2883, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.4997334 = idf(docFreq=9868, maxDocs=44218)
                0.0625 = fieldNorm(doc=2883)
          0.05767779 = weight(abstract_txt:known in 2883) [ClassicSimilarity], result of:
            0.05767779 = score(doc=2883,freq=1.0), product of:
              0.17715658 = queryWeight, product of:
                2.154711 = boost
                5.2092032 = idf(docFreq=656, maxDocs=44218)
                0.015783269 = queryNorm
              0.3255752 = fieldWeight in 2883, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2092032 = idf(docFreq=656, maxDocs=44218)
                0.0625 = fieldNorm(doc=2883)
          0.07628294 = weight(abstract_txt:expert in 2883) [ClassicSimilarity], result of:
            0.07628294 = score(doc=2883,freq=1.0), product of:
              0.21345344 = queryWeight, product of:
                2.3651679 = boost
                5.7180014 = idf(docFreq=394, maxDocs=44218)
                0.015783269 = queryNorm
              0.3573751 = fieldWeight in 2883, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.7180014 = idf(docFreq=394, maxDocs=44218)
                0.0625 = fieldNorm(doc=2883)
          0.08046728 = weight(abstract_txt:associated in 2883) [ClassicSimilarity], result of:
            0.08046728 = score(doc=2883,freq=1.0), product of:
              0.2531987 = queryWeight, product of:
                3.1549084 = boost
                5.084846 = idf(docFreq=743, maxDocs=44218)
                0.015783269 = queryNorm
              0.31780288 = fieldWeight in 2883, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.084846 = idf(docFreq=743, maxDocs=44218)
                0.0625 = fieldNorm(doc=2883)
          0.08992521 = weight(abstract_txt:classification in 2883) [ClassicSimilarity], result of:
            0.08992521 = score(doc=2883,freq=3.0), product of:
              0.20808564 = queryWeight, product of:
                3.3025274 = boost
                3.9920752 = idf(docFreq=2218, maxDocs=44218)
                0.015783269 = queryNorm
              0.4321548 = fieldWeight in 2883, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.9920752 = idf(docFreq=2218, maxDocs=44218)
                0.0625 = fieldNorm(doc=2883)
        0.32 = coord(8/25)
    
  3. Kolluri, V.; Metzler, D.P.: Knowledge guided rule learning (1999) 0.13
    0.13361806 = sum of:
      0.13361806 = product of:
        0.37116125 = sum of:
          0.020326765 = weight(abstract_txt:result in 6550) [ClassicSimilarity], result of:
            0.020326765 = score(doc=6550,freq=1.0), product of:
              0.08498577 = queryWeight, product of:
                1.0552819 = boost
                5.1024737 = idf(docFreq=730, maxDocs=44218)
                0.015783269 = queryNorm
              0.23917845 = fieldWeight in 6550, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.1024737 = idf(docFreq=730, maxDocs=44218)
                0.046875 = fieldNorm(doc=6550)
          0.02197705 = weight(abstract_txt:rules in 6550) [ClassicSimilarity], result of:
            0.02197705 = score(doc=6550,freq=1.0), product of:
              0.08952554 = queryWeight, product of:
                1.0831008 = boost
                5.236983 = idf(docFreq=638, maxDocs=44218)
                0.015783269 = queryNorm
              0.24548358 = fieldWeight in 6550, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.236983 = idf(docFreq=638, maxDocs=44218)
                0.046875 = fieldNorm(doc=6550)
          0.030238634 = weight(abstract_txt:classes in 6550) [ClassicSimilarity], result of:
            0.030238634 = score(doc=6550,freq=1.0), product of:
              0.110749595 = queryWeight, product of:
                1.2046654 = boost
                5.8247695 = idf(docFreq=354, maxDocs=44218)
                0.015783269 = queryNorm
              0.27303606 = fieldWeight in 6550, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.8247695 = idf(docFreq=354, maxDocs=44218)
                0.046875 = fieldNorm(doc=6550)
          0.044256233 = weight(abstract_txt:class in 6550) [ClassicSimilarity], result of:
            0.044256233 = score(doc=6550,freq=2.0), product of:
              0.11331141 = queryWeight, product of:
                1.2185187 = boost
                5.8917522 = idf(docFreq=331, maxDocs=44218)
                0.015783269 = queryNorm
              0.3905717 = fieldWeight in 6550, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.8917522 = idf(docFreq=331, maxDocs=44218)
                0.046875 = fieldNorm(doc=6550)
          0.1253013 = weight(abstract_txt:rule in 6550) [ClassicSimilarity], result of:
            0.1253013 = score(doc=6550,freq=8.0), product of:
              0.14285906 = queryWeight, product of:
                1.368199 = boost
                6.615483 = idf(docFreq=160, maxDocs=44218)
                0.015783269 = queryNorm
              0.87709737 = fieldWeight in 6550, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                6.615483 = idf(docFreq=160, maxDocs=44218)
                0.046875 = fieldNorm(doc=6550)
          0.010140126 = weight(abstract_txt:with in 6550) [ClassicSimilarity], result of:
            0.010140126 = score(doc=6550,freq=2.0), product of:
              0.06119182 = queryWeight, product of:
                1.5509675 = boost
                2.4997334 = idf(docFreq=9868, maxDocs=44218)
                0.015783269 = queryNorm
              0.16571048 = fieldWeight in 6550, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.4997334 = idf(docFreq=9868, maxDocs=44218)
                0.046875 = fieldNorm(doc=6550)
          0.018450582 = weight(abstract_txt:about in 6550) [ClassicSimilarity], result of:
            0.018450582 = score(doc=6550,freq=1.0), product of:
              0.10038082 = queryWeight, product of:
                1.6219436 = boost
                3.9211915 = idf(docFreq=2381, maxDocs=44218)
                0.015783269 = queryNorm
              0.18380585 = fieldWeight in 6550, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.9211915 = idf(docFreq=2381, maxDocs=44218)
                0.046875 = fieldNorm(doc=6550)
          0.043258343 = weight(abstract_txt:known in 6550) [ClassicSimilarity], result of:
            0.043258343 = score(doc=6550,freq=1.0), product of:
              0.17715658 = queryWeight, product of:
                2.154711 = boost
                5.2092032 = idf(docFreq=656, maxDocs=44218)
                0.015783269 = queryNorm
              0.2441814 = fieldWeight in 6550, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2092032 = idf(docFreq=656, maxDocs=44218)
                0.046875 = fieldNorm(doc=6550)
          0.057212204 = weight(abstract_txt:expert in 6550) [ClassicSimilarity], result of:
            0.057212204 = score(doc=6550,freq=1.0), product of:
              0.21345344 = queryWeight, product of:
                2.3651679 = boost
                5.7180014 = idf(docFreq=394, maxDocs=44218)
                0.015783269 = queryNorm
              0.2680313 = fieldWeight in 6550, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.7180014 = idf(docFreq=394, maxDocs=44218)
                0.046875 = fieldNorm(doc=6550)
        0.36 = coord(9/25)
    
  4. Panyr, J.: Information retrieval techniques in rule-based expert systems (1991) 0.13
    0.13277286 = sum of:
      0.13277286 = product of:
        0.47418877 = sum of:
          0.0655229 = weight(abstract_txt:rules in 3036) [ClassicSimilarity], result of:
            0.0655229 = score(doc=3036,freq=5.0), product of:
              0.08952554 = queryWeight, product of:
                1.0831008 = boost
                5.236983 = idf(docFreq=638, maxDocs=44218)
                0.015783269 = queryNorm
              0.7318906 = fieldWeight in 3036, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                5.236983 = idf(docFreq=638, maxDocs=44218)
                0.0625 = fieldNorm(doc=3036)
          0.03075074 = weight(abstract_txt:simple in 3036) [ClassicSimilarity], result of:
            0.03075074 = score(doc=3036,freq=1.0), product of:
              0.092451066 = queryWeight, product of:
                1.1006553 = boost
                5.321862 = idf(docFreq=586, maxDocs=44218)
                0.015783269 = queryNorm
              0.3326164 = fieldWeight in 3036, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.321862 = idf(docFreq=586, maxDocs=44218)
                0.0625 = fieldNorm(doc=3036)
          0.034687456 = weight(abstract_txt:makes in 3036) [ClassicSimilarity], result of:
            0.034687456 = score(doc=3036,freq=1.0), product of:
              0.100182034 = queryWeight, product of:
                1.1457511 = boost
                5.5399084 = idf(docFreq=471, maxDocs=44218)
                0.015783269 = queryNorm
              0.34624428 = fieldWeight in 3036, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5399084 = idf(docFreq=471, maxDocs=44218)
                0.0625 = fieldNorm(doc=3036)
          0.13207917 = weight(abstract_txt:rule in 3036) [ClassicSimilarity], result of:
            0.13207917 = score(doc=3036,freq=5.0), product of:
              0.14285906 = queryWeight, product of:
                1.368199 = boost
                6.615483 = idf(docFreq=160, maxDocs=44218)
                0.015783269 = queryNorm
              0.92454183 = fieldWeight in 3036, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                6.615483 = idf(docFreq=160, maxDocs=44218)
                0.0625 = fieldNorm(doc=3036)
          0.027104238 = weight(abstract_txt:system in 3036) [ClassicSimilarity], result of:
            0.027104238 = score(doc=3036,freq=3.0), product of:
              0.07424535 = queryWeight, product of:
                1.3949062 = boost
                3.3723085 = idf(docFreq=4123, maxDocs=44218)
                0.015783269 = queryNorm
              0.3650631 = fieldWeight in 3036, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.3723085 = idf(docFreq=4123, maxDocs=44218)
                0.0625 = fieldNorm(doc=3036)
          0.13212593 = weight(abstract_txt:expert in 3036) [ClassicSimilarity], result of:
            0.13212593 = score(doc=3036,freq=3.0), product of:
              0.21345344 = queryWeight, product of:
                2.3651679 = boost
                5.7180014 = idf(docFreq=394, maxDocs=44218)
                0.015783269 = queryNorm
              0.6189918 = fieldWeight in 3036, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.7180014 = idf(docFreq=394, maxDocs=44218)
                0.0625 = fieldNorm(doc=3036)
          0.051918346 = weight(abstract_txt:classification in 3036) [ClassicSimilarity], result of:
            0.051918346 = score(doc=3036,freq=1.0), product of:
              0.20808564 = queryWeight, product of:
                3.3025274 = boost
                3.9920752 = idf(docFreq=2218, maxDocs=44218)
                0.015783269 = queryNorm
              0.2495047 = fieldWeight in 3036, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.9920752 = idf(docFreq=2218, maxDocs=44218)
                0.0625 = fieldNorm(doc=3036)
        0.28 = coord(7/25)
    
  5. Wagger, S.; Park, R.; Bedford, D.A.D.: Lessons learned in content architecture harmonization and metadata models (2010) 0.12
    0.118897095 = sum of:
      0.118897095 = product of:
        0.49540457 = sum of:
          0.027102353 = weight(abstract_txt:result in 3943) [ClassicSimilarity], result of:
            0.027102353 = score(doc=3943,freq=1.0), product of:
              0.08498577 = queryWeight, product of:
                1.0552819 = boost
                5.1024737 = idf(docFreq=730, maxDocs=44218)
                0.015783269 = queryNorm
              0.3189046 = fieldWeight in 3943, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.1024737 = idf(docFreq=730, maxDocs=44218)
                0.0625 = fieldNorm(doc=3943)
          0.03075074 = weight(abstract_txt:simple in 3943) [ClassicSimilarity], result of:
            0.03075074 = score(doc=3943,freq=1.0), product of:
              0.092451066 = queryWeight, product of:
                1.1006553 = boost
                5.321862 = idf(docFreq=586, maxDocs=44218)
                0.015783269 = queryNorm
              0.3326164 = fieldWeight in 3943, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.321862 = idf(docFreq=586, maxDocs=44218)
                0.0625 = fieldNorm(doc=3943)
          0.057018515 = weight(abstract_txt:classes in 3943) [ClassicSimilarity], result of:
            0.057018515 = score(doc=3943,freq=2.0), product of:
              0.110749595 = queryWeight, product of:
                1.2046654 = boost
                5.8247695 = idf(docFreq=354, maxDocs=44218)
                0.015783269 = queryNorm
              0.51484174 = fieldWeight in 3943, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.8247695 = idf(docFreq=354, maxDocs=44218)
                0.0625 = fieldNorm(doc=3943)
          0.14172544 = weight(abstract_txt:parent in 3943) [ClassicSimilarity], result of:
            0.14172544 = score(doc=3943,freq=2.0), product of:
              0.2032186 = queryWeight, product of:
                1.6318382 = boost
                7.890225 = idf(docFreq=44, maxDocs=44218)
                0.015783269 = queryNorm
              0.6974039 = fieldWeight in 3943, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                7.890225 = idf(docFreq=44, maxDocs=44218)
                0.0625 = fieldNorm(doc=3943)
          0.18688917 = weight(abstract_txt:inheritance in 3943) [ClassicSimilarity], result of:
            0.18688917 = score(doc=3943,freq=2.0), product of:
              0.24437362 = queryWeight, product of:
                1.7894622 = boost
                8.652365 = idf(docFreq=20, maxDocs=44218)
                0.015783269 = queryNorm
              0.7647682 = fieldWeight in 3943, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                8.652365 = idf(docFreq=20, maxDocs=44218)
                0.0625 = fieldNorm(doc=3943)
          0.051918346 = weight(abstract_txt:classification in 3943) [ClassicSimilarity], result of:
            0.051918346 = score(doc=3943,freq=1.0), product of:
              0.20808564 = queryWeight, product of:
                3.3025274 = boost
                3.9920752 = idf(docFreq=2218, maxDocs=44218)
                0.015783269 = queryNorm
              0.2495047 = fieldWeight in 3943, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.9920752 = idf(docFreq=2218, maxDocs=44218)
                0.0625 = fieldNorm(doc=3943)
        0.24 = coord(6/25)