Document (#15574)

Author

Ahmad, F.
Yusoff, M.
Sembok, T.M.T.

Title

Experiments with a stemming algorithm for Malay words

Source

Journal of the American Society for Information Science. 47(1996) no.12, S.909-918

Year

1996

Abstract

Stemming is used in information retrieval systems to reduce variant word forms to common roots in order to improve retrieval effectiveness. As in other languages, there is a need for an effective stemming algorithm for the indexing and retrieval of Malay documents. The Malay stemming algorithm developed by Othman is studied and new versions proposed to enhance its performance. The improvements relate to the order in which the dictionary id looked-up, the order in which the morphological rules are applied, and the number of rules

Theme

Computerlinguistik

Similar documents (author)

1. Ahmad, N.: Newspaper indexing : an international overview (1991) 5.81

   5.81187 = sum of:
     5.81187 = weight(author_txt:ahmad in 3633) [ClassicSimilarity], result of:
       5.81187 = fieldWeight in 3633, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.298992 = idf(docFreq=10, maxDocs=44218)
         0.625 = fieldNorm(doc=3633)
   

2. Ahmad, K.: Text summarisation : the role of lexical cohesion analysis (1995) 5.81

   5.81187 = sum of:
     5.81187 = weight(author_txt:ahmad in 5795) [ClassicSimilarity], result of:
       5.81187 = fieldWeight in 5795, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.298992 = idf(docFreq=10, maxDocs=44218)
         0.625 = fieldNorm(doc=5795)
   

3. Ahmad, K.: ¬A terminology dynamic and the growth of knowledge : a case study in nuclear physics and in the philosophy of science (1996) 5.81

   5.81187 = sum of:
     5.81187 = weight(author_txt:ahmad in 6320) [ClassicSimilarity], result of:
       5.81187 = fieldWeight in 6320, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.298992 = idf(docFreq=10, maxDocs=44218)
         0.625 = fieldNorm(doc=6320)
   

4. Gillam, L.; Ahmad, K.: Knowledge-engineered terminology (data)bases (1996) 4.65

   4.649496 = sum of:
     4.649496 = weight(author_txt:ahmad in 6340) [ClassicSimilarity], result of:
       4.649496 = fieldWeight in 6340, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.298992 = idf(docFreq=10, maxDocs=44218)
         0.5 = fieldNorm(doc=6340)
   

5. Ahmad, K.; Salway, A.: ¬The terminolgy of safety (1996) 4.65

   4.649496 = sum of:
     4.649496 = weight(author_txt:ahmad in 6349) [ClassicSimilarity], result of:
       4.649496 = fieldWeight in 6349, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.298992 = idf(docFreq=10, maxDocs=44218)
         0.5 = fieldNorm(doc=6349)
   

Similar documents (content)

1. Bakar, Z.A.; Sembok, T.M.T.; Yusoff, M.: ¬An evaluation of retrieval effectiveness using spelling-correction and string-similarity matching methods on Malay texts (2000) 0.37

   0.36849895 = sum of:
     0.36849895 = product of:
       1.1515592 = sum of:
         0.024155382 = weight(abstract_txt:effectiveness in 4804) [ClassicSimilarity], result of:
           0.024155382 = score(doc=4804,freq=1.0), product of:
             0.06064456 = queryWeight, product of:
               1.0279154 = boost
               5.098378 = idf(docFreq=733, maxDocs=44218)
               0.01157184 = queryNorm
             0.39831078 = fieldWeight in 4804, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.098378 = idf(docFreq=733, maxDocs=44218)
               0.078125 = fieldNorm(doc=4804)
         0.03904057 = weight(abstract_txt:experiments in 4804) [ClassicSimilarity], result of:
           0.03904057 = score(doc=4804,freq=2.0), product of:
             0.066290304 = queryWeight, product of:
               1.074698 = boost
               5.3304167 = idf(docFreq=581, maxDocs=44218)
               0.01157184 = queryNorm
             0.58893335 = fieldWeight in 4804, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.3304167 = idf(docFreq=581, maxDocs=44218)
               0.078125 = fieldNorm(doc=4804)
         0.055916652 = weight(abstract_txt:words in 4804) [ClassicSimilarity], result of:
           0.055916652 = score(doc=4804,freq=4.0), product of:
             0.066853374 = queryWeight, product of:
               1.0792526 = boost
               5.353007 = idf(docFreq=568, maxDocs=44218)
               0.01157184 = queryNorm
             0.8364073 = fieldWeight in 4804, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.353007 = idf(docFreq=568, maxDocs=44218)
               0.078125 = fieldNorm(doc=4804)
         0.075269066 = weight(abstract_txt:dictionary in 4804) [ClassicSimilarity], result of:
           0.075269066 = score(doc=4804,freq=2.0), product of:
             0.10268734 = queryWeight, product of:
               1.3375803 = boost
               6.634292 = idf(docFreq=157, maxDocs=44218)
               0.01157184 = queryNorm
             0.73299265 = fieldWeight in 4804, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.634292 = idf(docFreq=157, maxDocs=44218)
               0.078125 = fieldNorm(doc=4804)
         0.022948572 = weight(abstract_txt:retrieval in 4804) [ClassicSimilarity], result of:
           0.022948572 = score(doc=4804,freq=1.0), product of:
             0.084526606 = queryWeight, product of:
               2.1019325 = boost
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.01157184 = queryNorm
             0.27149525 = fieldWeight in 4804, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.078125 = fieldNorm(doc=4804)
         0.10155528 = weight(abstract_txt:algorithm in 4804) [ClassicSimilarity], result of:
           0.10155528 = score(doc=4804,freq=1.0), product of:
             0.2278372 = queryWeight, product of:
               3.4509158 = boost
               5.705423 = idf(docFreq=399, maxDocs=44218)
               0.01157184 = queryNorm
             0.44573617 = fieldWeight in 4804, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.705423 = idf(docFreq=399, maxDocs=44218)
               0.078125 = fieldNorm(doc=4804)
         0.53139716 = weight(abstract_txt:malay in 4804) [ClassicSimilarity], result of:
           0.53139716 = score(doc=4804,freq=1.0), product of:
             0.68670326 = queryWeight, product of:
               5.9911003 = boost
               9.905128 = idf(docFreq=5, maxDocs=44218)
               0.01157184 = queryNorm
             0.7738381 = fieldWeight in 4804, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.905128 = idf(docFreq=5, maxDocs=44218)
               0.078125 = fieldNorm(doc=4804)
         0.30127653 = weight(abstract_txt:stemming in 4804) [ClassicSimilarity], result of:
           0.30127653 = score(doc=4804,freq=1.0), product of:
             0.51774126 = queryWeight, product of:
               6.006864 = boost
               7.448392 = idf(docFreq=69, maxDocs=44218)
               0.01157184 = queryNorm
             0.5819056 = fieldWeight in 4804, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.448392 = idf(docFreq=69, maxDocs=44218)
               0.078125 = fieldNorm(doc=4804)
       0.32 = coord(8/25)
   

2. Frakes, W.B.: Stemming algorithms (1992) 0.30

   0.29634607 = sum of:
     0.29634607 = product of:
       1.2347753 = sum of:
         0.03558458 = weight(abstract_txt:improve in 3503) [ClassicSimilarity], result of:
           0.03558458 = score(doc=3503,freq=1.0), product of:
             0.057395406 = queryWeight, product of:
               4.9599204 = idf(docFreq=842, maxDocs=44218)
               0.01157184 = queryNorm
             0.61999005 = fieldWeight in 3503, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.9599204 = idf(docFreq=842, maxDocs=44218)
               0.125 = fieldNorm(doc=3503)
         0.038648613 = weight(abstract_txt:effectiveness in 3503) [ClassicSimilarity], result of:
           0.038648613 = score(doc=3503,freq=1.0), product of:
             0.06064456 = queryWeight, product of:
               1.0279154 = boost
               5.098378 = idf(docFreq=733, maxDocs=44218)
               0.01157184 = queryNorm
             0.6372973 = fieldWeight in 3503, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.098378 = idf(docFreq=733, maxDocs=44218)
               0.125 = fieldNorm(doc=3503)
         0.072565585 = weight(abstract_txt:reduce in 3503) [ClassicSimilarity], result of:
           0.072565585 = score(doc=3503,freq=1.0), product of:
             0.09229745 = queryWeight, product of:
               1.2681081 = boost
               6.2897153 = idf(docFreq=222, maxDocs=44218)
               0.01157184 = queryNorm
             0.7862144 = fieldWeight in 3503, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.2897153 = idf(docFreq=222, maxDocs=44218)
               0.125 = fieldNorm(doc=3503)
         0.0871738 = weight(abstract_txt:relate in 3503) [ClassicSimilarity], result of:
           0.0871738 = score(doc=3503,freq=1.0), product of:
             0.10430214 = queryWeight, product of:
               1.3480563 = boost
               6.686252 = idf(docFreq=149, maxDocs=44218)
               0.01157184 = queryNorm
             0.8357815 = fieldWeight in 3503, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.686252 = idf(docFreq=149, maxDocs=44218)
               0.125 = fieldNorm(doc=3503)
         0.036717717 = weight(abstract_txt:retrieval in 3503) [ClassicSimilarity], result of:
           0.036717717 = score(doc=3503,freq=1.0), product of:
             0.084526606 = queryWeight, product of:
               2.1019325 = boost
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.01157184 = queryNorm
             0.43439242 = fieldWeight in 3503, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.125 = fieldNorm(doc=3503)
         0.964085 = weight(abstract_txt:stemming in 3503) [ClassicSimilarity], result of:
           0.964085 = score(doc=3503,freq=4.0), product of:
             0.51774126 = queryWeight, product of:
               6.006864 = boost
               7.448392 = idf(docFreq=69, maxDocs=44218)
               0.01157184 = queryNorm
             1.862098 = fieldWeight in 3503, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               7.448392 = idf(docFreq=69, maxDocs=44218)
               0.125 = fieldNorm(doc=3503)
       0.24 = coord(6/25)
   

3. Brychcín, T.; Konopík, M.: HPS: High precision stemmer (2015) 0.26

   0.25968975 = sum of:
     0.25968975 = product of:
       0.9274634 = sum of:
         0.020362789 = weight(abstract_txt:languages in 2686) [ClassicSimilarity], result of:
           0.020362789 = score(doc=2686,freq=1.0), product of:
             0.06279823 = queryWeight, product of:
               1.0460083 = boost
               5.188118 = idf(docFreq=670, maxDocs=44218)
               0.01157184 = queryNorm
             0.32425737 = fieldWeight in 2686, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.188118 = idf(docFreq=670, maxDocs=44218)
               0.0625 = fieldNorm(doc=2686)
         0.03874019 = weight(abstract_txt:words in 2686) [ClassicSimilarity], result of:
           0.03874019 = score(doc=2686,freq=3.0), product of:
             0.066853374 = queryWeight, product of:
               1.0792526 = boost
               5.353007 = idf(docFreq=568, maxDocs=44218)
               0.01157184 = queryNorm
             0.57948 = fieldWeight in 2686, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.353007 = idf(docFreq=568, maxDocs=44218)
               0.0625 = fieldNorm(doc=2686)
         0.02341538 = weight(abstract_txt:word in 2686) [ClassicSimilarity], result of:
           0.02341538 = score(doc=2686,freq=1.0), product of:
             0.0689271 = queryWeight, product of:
               1.0958635 = boost
               5.4353957 = idf(docFreq=523, maxDocs=44218)
               0.01157184 = queryNorm
             0.33971223 = fieldWeight in 2686, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4353957 = idf(docFreq=523, maxDocs=44218)
               0.0625 = fieldNorm(doc=2686)
         0.0072363503 = weight(abstract_txt:which in 2686) [ClassicSimilarity], result of:
           0.0072363503 = score(doc=2686,freq=1.0), product of:
             0.039695896 = queryWeight, product of:
               1.1761135 = boost
               2.9167147 = idf(docFreq=6503, maxDocs=44218)
               0.01157184 = queryNorm
             0.18229467 = fieldWeight in 2686, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.9167147 = idf(docFreq=6503, maxDocs=44218)
               0.0625 = fieldNorm(doc=2686)
         0.018358858 = weight(abstract_txt:retrieval in 2686) [ClassicSimilarity], result of:
           0.018358858 = score(doc=2686,freq=1.0), product of:
             0.084526606 = queryWeight, product of:
               2.1019325 = boost
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.01157184 = queryNorm
             0.21719621 = fieldWeight in 2686, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.0625 = fieldNorm(doc=2686)
         0.18166761 = weight(abstract_txt:algorithm in 2686) [ClassicSimilarity], result of:
           0.18166761 = score(doc=2686,freq=5.0), product of:
             0.2278372 = queryWeight, product of:
               3.4509158 = boost
               5.705423 = idf(docFreq=399, maxDocs=44218)
               0.01157184 = queryNorm
             0.7973571 = fieldWeight in 2686, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               5.705423 = idf(docFreq=399, maxDocs=44218)
               0.0625 = fieldNorm(doc=2686)
         0.63768226 = weight(abstract_txt:stemming in 2686) [ClassicSimilarity], result of:
           0.63768226 = score(doc=2686,freq=7.0), product of:
             0.51774126 = queryWeight, product of:
               6.006864 = boost
               7.448392 = idf(docFreq=69, maxDocs=44218)
               0.01157184 = queryNorm
             1.231662 = fieldWeight in 2686, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               7.448392 = idf(docFreq=69, maxDocs=44218)
               0.0625 = fieldNorm(doc=2686)
       0.28 = coord(7/25)
   

4. Snajder, J.; Dalbelo Basic, B.D.; Tadic, M.: Automatic acquisition of inflectional lexica for morphological normalisation (2008) 0.22

   0.22002238 = sum of:
     0.22002238 = product of:
       0.68757 = sum of:
         0.035996664 = weight(abstract_txt:languages in 2910) [ClassicSimilarity], result of:
           0.035996664 = score(doc=2910,freq=2.0), product of:
             0.06279823 = queryWeight, product of:
               1.0460083 = boost
               5.188118 = idf(docFreq=670, maxDocs=44218)
               0.01157184 = queryNorm
             0.57321143 = fieldWeight in 2910, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.188118 = idf(docFreq=670, maxDocs=44218)
               0.078125 = fieldNorm(doc=2910)
         0.027958326 = weight(abstract_txt:words in 2910) [ClassicSimilarity], result of:
           0.027958326 = score(doc=2910,freq=1.0), product of:
             0.066853374 = queryWeight, product of:
               1.0792526 = boost
               5.353007 = idf(docFreq=568, maxDocs=44218)
               0.01157184 = queryNorm
             0.41820365 = fieldWeight in 2910, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.353007 = idf(docFreq=568, maxDocs=44218)
               0.078125 = fieldNorm(doc=2910)
         0.029269226 = weight(abstract_txt:word in 2910) [ClassicSimilarity], result of:
           0.029269226 = score(doc=2910,freq=1.0), product of:
             0.0689271 = queryWeight, product of:
               1.0958635 = boost
               5.4353957 = idf(docFreq=523, maxDocs=44218)
               0.01157184 = queryNorm
             0.4246403 = fieldWeight in 2910, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4353957 = idf(docFreq=523, maxDocs=44218)
               0.078125 = fieldNorm(doc=2910)
         0.0296133 = weight(abstract_txt:forms in 2910) [ClassicSimilarity], result of:
           0.0296133 = score(doc=2910,freq=1.0), product of:
             0.06946623 = queryWeight, product of:
               1.1001409 = boost
               5.456611 = idf(docFreq=512, maxDocs=44218)
               0.01157184 = queryNorm
             0.42629775 = fieldWeight in 2910, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.456611 = idf(docFreq=512, maxDocs=44218)
               0.078125 = fieldNorm(doc=2910)
         0.009045438 = weight(abstract_txt:which in 2910) [ClassicSimilarity], result of:
           0.009045438 = score(doc=2910,freq=1.0), product of:
             0.039695896 = queryWeight, product of:
               1.1761135 = boost
               2.9167147 = idf(docFreq=6503, maxDocs=44218)
               0.01157184 = queryNorm
             0.22786833 = fieldWeight in 2910, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.9167147 = idf(docFreq=6503, maxDocs=44218)
               0.078125 = fieldNorm(doc=2910)
         0.23146187 = weight(abstract_txt:morphological in 2910) [ClassicSimilarity], result of:
           0.23146187 = score(doc=2910,freq=6.0), product of:
             0.15056306 = queryWeight, product of:
               1.619648 = boost
               8.033325 = idf(docFreq=38, maxDocs=44218)
               0.01157184 = queryNorm
             1.5373085 = fieldWeight in 2910, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               8.033325 = idf(docFreq=38, maxDocs=44218)
               0.078125 = fieldNorm(doc=2910)
         0.022948572 = weight(abstract_txt:retrieval in 2910) [ClassicSimilarity], result of:
           0.022948572 = score(doc=2910,freq=1.0), product of:
             0.084526606 = queryWeight, product of:
               2.1019325 = boost
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.01157184 = queryNorm
             0.27149525 = fieldWeight in 2910, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.078125 = fieldNorm(doc=2910)
         0.30127653 = weight(abstract_txt:stemming in 2910) [ClassicSimilarity], result of:
           0.30127653 = score(doc=2910,freq=1.0), product of:
             0.51774126 = queryWeight, product of:
               6.006864 = boost
               7.448392 = idf(docFreq=69, maxDocs=44218)
               0.01157184 = queryNorm
             0.5819056 = fieldWeight in 2910, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.448392 = idf(docFreq=69, maxDocs=44218)
               0.078125 = fieldNorm(doc=2910)
       0.32 = coord(8/25)
   

5. Khoo, C.S.G.; Wan, K.-W.: ¬A simple relevancy-ranking strategy for an interface to Boolean OPACs (2004) 0.21

   0.20705965 = sum of:
     0.20705965 = product of:
       0.73949873 = sum of:
         0.027958326 = weight(abstract_txt:words in 2509) [ClassicSimilarity], result of:
           0.027958326 = score(doc=2509,freq=1.0), product of:
             0.066853374 = queryWeight, product of:
               1.0792526 = boost
               5.353007 = idf(docFreq=568, maxDocs=44218)
               0.01157184 = queryNorm
             0.41820365 = fieldWeight in 2509, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.353007 = idf(docFreq=568, maxDocs=44218)
               0.078125 = fieldNorm(doc=2509)
         0.029269226 = weight(abstract_txt:word in 2509) [ClassicSimilarity], result of:
           0.029269226 = score(doc=2509,freq=1.0), product of:
             0.0689271 = queryWeight, product of:
               1.0958635 = boost
               5.4353957 = idf(docFreq=523, maxDocs=44218)
               0.01157184 = queryNorm
             0.4246403 = fieldWeight in 2509, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4353957 = idf(docFreq=523, maxDocs=44218)
               0.078125 = fieldNorm(doc=2509)
         0.0296133 = weight(abstract_txt:forms in 2509) [ClassicSimilarity], result of:
           0.0296133 = score(doc=2509,freq=1.0), product of:
             0.06946623 = queryWeight, product of:
               1.1001409 = boost
               5.456611 = idf(docFreq=512, maxDocs=44218)
               0.01157184 = queryNorm
             0.42629775 = fieldWeight in 2509, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.456611 = idf(docFreq=512, maxDocs=44218)
               0.078125 = fieldNorm(doc=2509)
         0.009045438 = weight(abstract_txt:which in 2509) [ClassicSimilarity], result of:
           0.009045438 = score(doc=2509,freq=1.0), product of:
             0.039695896 = queryWeight, product of:
               1.1761135 = boost
               2.9167147 = idf(docFreq=6503, maxDocs=44218)
               0.01157184 = queryNorm
             0.22786833 = fieldWeight in 2509, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.9167147 = idf(docFreq=6503, maxDocs=44218)
               0.078125 = fieldNorm(doc=2509)
         0.0736459 = weight(abstract_txt:variant in 2509) [ClassicSimilarity], result of:
           0.0736459 = score(doc=2509,freq=1.0), product of:
             0.12751117 = queryWeight, product of:
               1.4905123 = boost
               7.3928223 = idf(docFreq=73, maxDocs=44218)
               0.01157184 = queryNorm
             0.57756424 = fieldWeight in 2509, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.3928223 = idf(docFreq=73, maxDocs=44218)
               0.078125 = fieldNorm(doc=2509)
         0.26869002 = weight(abstract_txt:algorithm in 2509) [ClassicSimilarity], result of:
           0.26869002 = score(doc=2509,freq=7.0), product of:
             0.2278372 = queryWeight, product of:
               3.4509158 = boost
               5.705423 = idf(docFreq=399, maxDocs=44218)
               0.01157184 = queryNorm
             1.179307 = fieldWeight in 2509, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               5.705423 = idf(docFreq=399, maxDocs=44218)
               0.078125 = fieldNorm(doc=2509)
         0.30127653 = weight(abstract_txt:stemming in 2509) [ClassicSimilarity], result of:
           0.30127653 = score(doc=2509,freq=1.0), product of:
             0.51774126 = queryWeight, product of:
               6.006864 = boost
               7.448392 = idf(docFreq=69, maxDocs=44218)
               0.01157184 = queryNorm
             0.5819056 = fieldWeight in 2509, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.448392 = idf(docFreq=69, maxDocs=44218)
               0.078125 = fieldNorm(doc=2509)
       0.28 = coord(7/25)