Document (#32958)

Author

Tho, Q.T.
Hui, S.C.
Fong, A.C.M.

Title

¬A citation-based document retrieval system for finding research expertise

Source

Information processing and management. 43(2007) no.1, S.248-264

Year

2007

Abstract

Current citation-based document retrieval systems generally offer only limited search facilities, such as author search. In order to facilitate more advanced search functions, we have developed a significantly improved system that employs two novel techniques: Context-based Cluster Analysis (CCA) and Context-based Ontology Generation frAmework (COGA). CCA aims to extract relevant information from clusters originally obtained from disparate clustering methods by building relationships between them. The built relationships are then represented as formal context using the Formal Concept Analysis (FCA) technique. COGA aims to generate ontology from clusters relationship built by CCA. By combining these two techniques, we are able to perform ontology learning from a citation database using clustering results. We have implemented the improved system and have demonstrated its use for finding research domain expertise. We have also conducted performance evaluation on the system and the results are encouraging.

Theme

Citation indexing

Similar documents (content)

1. Reimer, U.; Brockhausen, P.; Lau, T.; Reich, J.R.: Ontology-based knowledge management at work : the Swiss life case studies (2004) 0.36

   0.3593737 = sum of:
     0.3593737 = product of:
       0.7486952 = sum of:
         0.01638135 = weight(abstract_txt:using in 1412) [ClassicSimilarity], result of:
           0.01638135 = score(doc=1412,freq=1.0), product of:
             0.085909374 = queryWeight, product of:
               3.486752 = idf(docFreq=3518, maxDocs=42306)
               0.024638796 = queryNorm
             0.19068176 = fieldWeight in 1412, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.486752 = idf(docFreq=3518, maxDocs=42306)
               0.0546875 = fieldNorm(doc=1412)
         0.016761757 = weight(abstract_txt:results in 1412) [ClassicSimilarity], result of:
           0.016761757 = score(doc=1412,freq=1.0), product of:
             0.087234266 = queryWeight, product of:
               1.0076815 = boost
               3.5135355 = idf(docFreq=3425, maxDocs=42306)
               0.024638796 = queryNorm
             0.19214648 = fieldWeight in 1412, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.5135355 = idf(docFreq=3425, maxDocs=42306)
               0.0546875 = fieldNorm(doc=1412)
         0.052452747 = weight(abstract_txt:document in 1412) [ClassicSimilarity], result of:
           0.052452747 = score(doc=1412,freq=3.0), product of:
             0.12940344 = queryWeight, product of:
               1.2273054 = boost
               4.2793097 = idf(docFreq=1592, maxDocs=42306)
               0.024638796 = queryNorm
             0.40534276 = fieldWeight in 1412, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.2793097 = idf(docFreq=1592, maxDocs=42306)
               0.0546875 = fieldNorm(doc=1412)
         0.054605663 = weight(abstract_txt:aims in 1412) [ClassicSimilarity], result of:
           0.054605663 = score(doc=1412,freq=1.0), product of:
             0.1917046 = queryWeight, product of:
               1.4938122 = boost
               5.208553 = idf(docFreq=628, maxDocs=42306)
               0.024638796 = queryNorm
             0.28484273 = fieldWeight in 1412, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.208553 = idf(docFreq=628, maxDocs=42306)
               0.0546875 = fieldNorm(doc=1412)
         0.040049966 = weight(abstract_txt:search in 1412) [ClassicSimilarity], result of:
           0.040049966 = score(doc=1412,freq=2.0), product of:
             0.14165415 = queryWeight, product of:
               1.5726787 = boost
               3.6556938 = idf(docFreq=2971, maxDocs=42306)
               0.024638796 = queryNorm
             0.28273064 = fieldWeight in 1412, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.6556938 = idf(docFreq=2971, maxDocs=42306)
               0.0546875 = fieldNorm(doc=1412)
         0.06451773 = weight(abstract_txt:finding in 1412) [ClassicSimilarity], result of:
           0.06451773 = score(doc=1412,freq=1.0), product of:
             0.21425296 = queryWeight, product of:
               1.5792218 = boost
               5.506355 = idf(docFreq=466, maxDocs=42306)
               0.024638796 = queryNorm
             0.30112877 = fieldWeight in 1412, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.506355 = idf(docFreq=466, maxDocs=42306)
               0.0546875 = fieldNorm(doc=1412)
         0.02391399 = weight(abstract_txt:from in 1412) [ClassicSimilarity], result of:
           0.02391399 = score(doc=1412,freq=2.0), product of:
             0.110554256 = queryWeight, product of:
               1.6042885 = boost
               2.796878 = idf(docFreq=7014, maxDocs=42306)
               0.024638796 = queryNorm
             0.21631 = fieldWeight in 1412, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.796878 = idf(docFreq=7014, maxDocs=42306)
               0.0546875 = fieldNorm(doc=1412)
         0.08094981 = weight(abstract_txt:built in 1412) [ClassicSimilarity], result of:
           0.08094981 = score(doc=1412,freq=1.0), product of:
             0.24924015 = queryWeight, product of:
               1.7032905 = boost
               5.9389515 = idf(docFreq=302, maxDocs=42306)
               0.024638796 = queryNorm
             0.32478642 = fieldWeight in 1412, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.9389515 = idf(docFreq=302, maxDocs=42306)
               0.0546875 = fieldNorm(doc=1412)
         0.044493288 = weight(abstract_txt:based in 1412) [ClassicSimilarity], result of:
           0.044493288 = score(doc=1412,freq=3.0), product of:
             0.14609657 = queryWeight, product of:
               1.8442285 = boost
               3.2151837 = idf(docFreq=4616, maxDocs=42306)
               0.024638796 = queryNorm
             0.3045471 = fieldWeight in 1412, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.2151837 = idf(docFreq=4616, maxDocs=42306)
               0.0546875 = fieldNorm(doc=1412)
         0.026346296 = weight(abstract_txt:have in 1412) [ClassicSimilarity], result of:
           0.026346296 = score(doc=1412,freq=1.0), product of:
             0.14858118 = queryWeight, product of:
               1.8598444 = boost
               3.2424083 = idf(docFreq=4492, maxDocs=42306)
               0.024638796 = queryNorm
             0.1773192 = fieldWeight in 1412, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.2424083 = idf(docFreq=4492, maxDocs=42306)
               0.0546875 = fieldNorm(doc=1412)
         0.04164373 = weight(abstract_txt:system in 1412) [ClassicSimilarity], result of:
           0.04164373 = score(doc=1412,freq=2.0), product of:
             0.16001984 = queryWeight, product of:
               1.9301081 = boost
               3.3649042 = idf(docFreq=3974, maxDocs=42306)
               0.024638796 = queryNorm
             0.26024103 = fieldWeight in 1412, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.3649042 = idf(docFreq=3974, maxDocs=42306)
               0.0546875 = fieldNorm(doc=1412)
         0.28657886 = weight(abstract_txt:ontology in 1412) [ClassicSimilarity], result of:
           0.28657886 = score(doc=1412,freq=8.0), product of:
             0.33136296 = queryWeight, product of:
               2.4053447 = boost
               5.591227 = idf(docFreq=428, maxDocs=42306)
               0.024638796 = queryNorm
             0.8648488 = fieldWeight in 1412, product of:
               2.828427 = tf(freq=8.0), with freq of:
                 8.0 = termFreq=8.0
               5.591227 = idf(docFreq=428, maxDocs=42306)
               0.0546875 = fieldNorm(doc=1412)
       0.48 = coord(12/25)
   

2. Boyack, K.W.; Small, H.; Klavans, R.: Improving the accuracy of co-citation clustering using full text (2013) 0.35

   0.3538277 = sum of:
     0.3538277 = product of:
       0.88456917 = sum of:
         0.033095323 = weight(abstract_txt:using in 3037) [ClassicSimilarity], result of:
           0.033095323 = score(doc=3037,freq=2.0), product of:
             0.085909374 = queryWeight, product of:
               3.486752 = idf(docFreq=3518, maxDocs=42306)
               0.024638796 = queryNorm
             0.3852353 = fieldWeight in 3037, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.486752 = idf(docFreq=3518, maxDocs=42306)
               0.078125 = fieldNorm(doc=3037)
         0.03386386 = weight(abstract_txt:results in 3037) [ClassicSimilarity], result of:
           0.03386386 = score(doc=3037,freq=2.0), product of:
             0.087234266 = queryWeight, product of:
               1.0076815 = boost
               3.5135355 = idf(docFreq=3425, maxDocs=42306)
               0.024638796 = queryNorm
             0.38819447 = fieldWeight in 3037, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.5135355 = idf(docFreq=3425, maxDocs=42306)
               0.078125 = fieldNorm(doc=3037)
         0.027965201 = weight(abstract_txt:analysis in 3037) [ClassicSimilarity], result of:
           0.027965201 = score(doc=3037,freq=1.0), product of:
             0.096742675 = queryWeight, product of:
               1.0611793 = boost
               3.7000692 = idf(docFreq=2842, maxDocs=42306)
               0.024638796 = queryNorm
             0.2890679 = fieldWeight in 3037, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.7000692 = idf(docFreq=2842, maxDocs=42306)
               0.078125 = fieldNorm(doc=3037)
         0.06222446 = weight(abstract_txt:relationships in 3037) [ClassicSimilarity], result of:
           0.06222446 = score(doc=3037,freq=1.0), product of:
             0.16488464 = queryWeight, product of:
               1.3853829 = boost
               4.830487 = idf(docFreq=917, maxDocs=42306)
               0.024638796 = queryNorm
             0.37738177 = fieldWeight in 3037, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.830487 = idf(docFreq=917, maxDocs=42306)
               0.078125 = fieldNorm(doc=3037)
         0.04184077 = weight(abstract_txt:from in 3037) [ClassicSimilarity], result of:
           0.04184077 = score(doc=3037,freq=3.0), product of:
             0.110554256 = queryWeight, product of:
               1.6042885 = boost
               2.796878 = idf(docFreq=7014, maxDocs=42306)
               0.024638796 = queryNorm
             0.3784637 = fieldWeight in 3037, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               2.796878 = idf(docFreq=7014, maxDocs=42306)
               0.078125 = fieldNorm(doc=3037)
         0.18857913 = weight(abstract_txt:clustering in 3037) [ClassicSimilarity], result of:
           0.18857913 = score(doc=3037,freq=2.0), product of:
             0.27406815 = queryWeight, product of:
               1.7861133 = boost
               6.227734 = idf(docFreq=226, maxDocs=42306)
               0.024638796 = queryNorm
             0.6880739 = fieldWeight in 3037, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.227734 = idf(docFreq=226, maxDocs=42306)
               0.078125 = fieldNorm(doc=3037)
         0.06356184 = weight(abstract_txt:based in 3037) [ClassicSimilarity], result of:
           0.06356184 = score(doc=3037,freq=3.0), product of:
             0.14609657 = queryWeight, product of:
               1.8442285 = boost
               3.2151837 = idf(docFreq=4616, maxDocs=42306)
               0.024638796 = queryNorm
             0.4350673 = fieldWeight in 3037, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.2151837 = idf(docFreq=4616, maxDocs=42306)
               0.078125 = fieldNorm(doc=3037)
         0.037637565 = weight(abstract_txt:have in 3037) [ClassicSimilarity], result of:
           0.037637565 = score(doc=3037,freq=1.0), product of:
             0.14858118 = queryWeight, product of:
               1.8598444 = boost
               3.2424083 = idf(docFreq=4492, maxDocs=42306)
               0.024638796 = queryNorm
             0.25331315 = fieldWeight in 3037, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.2424083 = idf(docFreq=4492, maxDocs=42306)
               0.078125 = fieldNorm(doc=3037)
         0.1536288 = weight(abstract_txt:clusters in 3037) [ClassicSimilarity], result of:
           0.1536288 = score(doc=3037,freq=1.0), product of:
             0.3011997 = queryWeight, product of:
               1.872436 = boost
               6.5287204 = idf(docFreq=167, maxDocs=42306)
               0.024638796 = queryNorm
             0.51005626 = fieldWeight in 3037, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.5287204 = idf(docFreq=167, maxDocs=42306)
               0.078125 = fieldNorm(doc=3037)
         0.24217217 = weight(abstract_txt:citation in 3037) [ClassicSimilarity], result of:
           0.24217217 = score(doc=3037,freq=6.0), product of:
             0.25700146 = queryWeight, product of:
               2.1183279 = boost
               4.9240556 = idf(docFreq=835, maxDocs=42306)
               0.024638796 = queryNorm
             0.94229877 = fieldWeight in 3037, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               4.9240556 = idf(docFreq=835, maxDocs=42306)
               0.078125 = fieldNorm(doc=3037)
       0.4 = coord(10/25)
   

3. He, Y.; Hui, S.C.: PubSearch : a Web citation-based retrieval system (2001) 0.35

   0.3472338 = sum of:
     0.3472338 = product of:
       0.96453834 = sum of:
         0.027965201 = weight(abstract_txt:analysis in 807) [ClassicSimilarity], result of:
           0.027965201 = score(doc=807,freq=1.0), product of:
             0.096742675 = queryWeight, product of:
               1.0611793 = boost
               3.7000692 = idf(docFreq=2842, maxDocs=42306)
               0.024638796 = queryNorm
             0.2890679 = fieldWeight in 807, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.7000692 = idf(docFreq=2842, maxDocs=42306)
               0.078125 = fieldNorm(doc=807)
         0.07493249 = weight(abstract_txt:document in 807) [ClassicSimilarity], result of:
           0.07493249 = score(doc=807,freq=3.0), product of:
             0.12940344 = queryWeight, product of:
               1.2273054 = boost
               4.2793097 = idf(docFreq=1592, maxDocs=42306)
               0.024638796 = queryNorm
             0.57906103 = fieldWeight in 807, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.2793097 = idf(docFreq=1592, maxDocs=42306)
               0.078125 = fieldNorm(doc=807)
         0.09046367 = weight(abstract_txt:search in 807) [ClassicSimilarity], result of:
           0.09046367 = score(doc=807,freq=5.0), product of:
             0.14165415 = queryWeight, product of:
               1.5726787 = boost
               3.6556938 = idf(docFreq=2971, maxDocs=42306)
               0.024638796 = queryNorm
             0.6386235 = fieldWeight in 807, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               3.6556938 = idf(docFreq=2971, maxDocs=42306)
               0.078125 = fieldNorm(doc=807)
         0.024156779 = weight(abstract_txt:from in 807) [ClassicSimilarity], result of:
           0.024156779 = score(doc=807,freq=1.0), product of:
             0.110554256 = queryWeight, product of:
               1.6042885 = boost
               2.796878 = idf(docFreq=7014, maxDocs=42306)
               0.024638796 = queryNorm
             0.2185061 = fieldWeight in 807, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.796878 = idf(docFreq=7014, maxDocs=42306)
               0.078125 = fieldNorm(doc=807)
         0.26669118 = weight(abstract_txt:clustering in 807) [ClassicSimilarity], result of:
           0.26669118 = score(doc=807,freq=4.0), product of:
             0.27406815 = queryWeight, product of:
               1.7861133 = boost
               6.227734 = idf(docFreq=226, maxDocs=42306)
               0.024638796 = queryNorm
             0.97308344 = fieldWeight in 807, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               6.227734 = idf(docFreq=226, maxDocs=42306)
               0.078125 = fieldNorm(doc=807)
         0.06356184 = weight(abstract_txt:based in 807) [ClassicSimilarity], result of:
           0.06356184 = score(doc=807,freq=3.0), product of:
             0.14609657 = queryWeight, product of:
               1.8442285 = boost
               3.2151837 = idf(docFreq=4616, maxDocs=42306)
               0.024638796 = queryNorm
             0.4350673 = fieldWeight in 807, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.2151837 = idf(docFreq=4616, maxDocs=42306)
               0.078125 = fieldNorm(doc=807)
         0.1536288 = weight(abstract_txt:clusters in 807) [ClassicSimilarity], result of:
           0.1536288 = score(doc=807,freq=1.0), product of:
             0.3011997 = queryWeight, product of:
               1.872436 = boost
               6.5287204 = idf(docFreq=167, maxDocs=42306)
               0.024638796 = queryNorm
             0.51005626 = fieldWeight in 807, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.5287204 = idf(docFreq=167, maxDocs=42306)
               0.078125 = fieldNorm(doc=807)
         0.04206652 = weight(abstract_txt:system in 807) [ClassicSimilarity], result of:
           0.04206652 = score(doc=807,freq=1.0), product of:
             0.16001984 = queryWeight, product of:
               1.9301081 = boost
               3.3649042 = idf(docFreq=3974, maxDocs=42306)
               0.024638796 = queryNorm
             0.26288313 = fieldWeight in 807, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.3649042 = idf(docFreq=3974, maxDocs=42306)
               0.078125 = fieldNorm(doc=807)
         0.2210719 = weight(abstract_txt:citation in 807) [ClassicSimilarity], result of:
           0.2210719 = score(doc=807,freq=5.0), product of:
             0.25700146 = queryWeight, product of:
               2.1183279 = boost
               4.9240556 = idf(docFreq=835, maxDocs=42306)
               0.024638796 = queryNorm
             0.86019707 = fieldWeight in 807, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               4.9240556 = idf(docFreq=835, maxDocs=42306)
               0.078125 = fieldNorm(doc=807)
       0.36 = coord(9/25)
   

4. Small, H.G.: Structural dynamics of scientific literature (2015) 0.34

   0.34451896 = sum of:
     0.34451896 = product of:
       0.86129737 = sum of:
         0.033095323 = weight(abstract_txt:using in 4357) [ClassicSimilarity], result of:
           0.033095323 = score(doc=4357,freq=2.0), product of:
             0.085909374 = queryWeight, product of:
               3.486752 = idf(docFreq=3518, maxDocs=42306)
               0.024638796 = queryNorm
             0.3852353 = fieldWeight in 4357, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.486752 = idf(docFreq=3518, maxDocs=42306)
               0.078125 = fieldNorm(doc=4357)
         0.023945365 = weight(abstract_txt:results in 4357) [ClassicSimilarity], result of:
           0.023945365 = score(doc=4357,freq=1.0), product of:
             0.087234266 = queryWeight, product of:
               1.0076815 = boost
               3.5135355 = idf(docFreq=3425, maxDocs=42306)
               0.024638796 = queryNorm
             0.27449495 = fieldWeight in 4357, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.5135355 = idf(docFreq=3425, maxDocs=42306)
               0.078125 = fieldNorm(doc=4357)
         0.027965201 = weight(abstract_txt:analysis in 4357) [ClassicSimilarity], result of:
           0.027965201 = score(doc=4357,freq=1.0), product of:
             0.096742675 = queryWeight, product of:
               1.0611793 = boost
               3.7000692 = idf(docFreq=2842, maxDocs=42306)
               0.024638796 = queryNorm
             0.2890679 = fieldWeight in 4357, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.7000692 = idf(docFreq=2842, maxDocs=42306)
               0.078125 = fieldNorm(doc=4357)
         0.0432623 = weight(abstract_txt:document in 4357) [ClassicSimilarity], result of:
           0.0432623 = score(doc=4357,freq=1.0), product of:
             0.12940344 = queryWeight, product of:
               1.2273054 = boost
               4.2793097 = idf(docFreq=1592, maxDocs=42306)
               0.024638796 = queryNorm
             0.33432108 = fieldWeight in 4357, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.2793097 = idf(docFreq=1592, maxDocs=42306)
               0.078125 = fieldNorm(doc=4357)
         0.06222446 = weight(abstract_txt:relationships in 4357) [ClassicSimilarity], result of:
           0.06222446 = score(doc=4357,freq=1.0), product of:
             0.16488464 = queryWeight, product of:
               1.3853829 = boost
               4.830487 = idf(docFreq=917, maxDocs=42306)
               0.024638796 = queryNorm
             0.37738177 = fieldWeight in 4357, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.830487 = idf(docFreq=917, maxDocs=42306)
               0.078125 = fieldNorm(doc=4357)
         0.04184077 = weight(abstract_txt:from in 4357) [ClassicSimilarity], result of:
           0.04184077 = score(doc=4357,freq=3.0), product of:
             0.110554256 = queryWeight, product of:
               1.6042885 = boost
               2.796878 = idf(docFreq=7014, maxDocs=42306)
               0.024638796 = queryNorm
             0.3784637 = fieldWeight in 4357, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               2.796878 = idf(docFreq=7014, maxDocs=42306)
               0.078125 = fieldNorm(doc=4357)
         0.13334559 = weight(abstract_txt:clustering in 4357) [ClassicSimilarity], result of:
           0.13334559 = score(doc=4357,freq=1.0), product of:
             0.27406815 = queryWeight, product of:
               1.7861133 = boost
               6.227734 = idf(docFreq=226, maxDocs=42306)
               0.024638796 = queryNorm
             0.48654172 = fieldWeight in 4357, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.227734 = idf(docFreq=226, maxDocs=42306)
               0.078125 = fieldNorm(doc=4357)
         0.053227555 = weight(abstract_txt:have in 4357) [ClassicSimilarity], result of:
           0.053227555 = score(doc=4357,freq=2.0), product of:
             0.14858118 = queryWeight, product of:
               1.8598444 = boost
               3.2424083 = idf(docFreq=4492, maxDocs=42306)
               0.024638796 = queryNorm
             0.35823888 = fieldWeight in 4357, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.2424083 = idf(docFreq=4492, maxDocs=42306)
               0.078125 = fieldNorm(doc=4357)
         0.34352443 = weight(abstract_txt:clusters in 4357) [ClassicSimilarity], result of:
           0.34352443 = score(doc=4357,freq=5.0), product of:
             0.3011997 = queryWeight, product of:
               1.872436 = boost
               6.5287204 = idf(docFreq=167, maxDocs=42306)
               0.024638796 = queryNorm
             1.1405205 = fieldWeight in 4357, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               6.5287204 = idf(docFreq=167, maxDocs=42306)
               0.078125 = fieldNorm(doc=4357)
         0.098866366 = weight(abstract_txt:citation in 4357) [ClassicSimilarity], result of:
           0.098866366 = score(doc=4357,freq=1.0), product of:
             0.25700146 = queryWeight, product of:
               2.1183279 = boost
               4.9240556 = idf(docFreq=835, maxDocs=42306)
               0.024638796 = queryNorm
             0.38469183 = fieldWeight in 4357, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.9240556 = idf(docFreq=835, maxDocs=42306)
               0.078125 = fieldNorm(doc=4357)
       0.4 = coord(10/25)
   

5. Mao, M.: Ontology mapping : towards semantic interoperability in distributed and heterogeneous environments (2008) 0.31

   0.30785725 = sum of:
     0.30785725 = product of:
       0.76964307 = sum of:
         0.02316673 = weight(abstract_txt:using in 1660) [ClassicSimilarity], result of:
           0.02316673 = score(doc=1660,freq=2.0), product of:
             0.085909374 = queryWeight, product of:
               3.486752 = idf(docFreq=3518, maxDocs=42306)
               0.024638796 = queryNorm
             0.26966473 = fieldWeight in 1660, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.486752 = idf(docFreq=3518, maxDocs=42306)
               0.0546875 = fieldNorm(doc=1660)
         0.016761757 = weight(abstract_txt:results in 1660) [ClassicSimilarity], result of:
           0.016761757 = score(doc=1660,freq=1.0), product of:
             0.087234266 = queryWeight, product of:
               1.0076815 = boost
               3.5135355 = idf(docFreq=3425, maxDocs=42306)
               0.024638796 = queryNorm
             0.19214648 = fieldWeight in 1660, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.5135355 = idf(docFreq=3425, maxDocs=42306)
               0.0546875 = fieldNorm(doc=1660)
         0.07935601 = weight(abstract_txt:encouraging in 1660) [ClassicSimilarity], result of:
           0.07935601 = score(doc=1660,freq=1.0), product of:
             0.19521685 = queryWeight, product of:
               1.065917 = boost
               7.4331765 = idf(docFreq=67, maxDocs=42306)
               0.024638796 = queryNorm
             0.40650183 = fieldWeight in 1660, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.4331765 = idf(docFreq=67, maxDocs=42306)
               0.0546875 = fieldNorm(doc=1660)
         0.050716396 = weight(abstract_txt:techniques in 1660) [ClassicSimilarity], result of:
           0.050716396 = score(doc=1660,freq=2.0), product of:
             0.14484261 = queryWeight, product of:
               1.298458 = boost
               4.527401 = idf(docFreq=1242, maxDocs=42306)
               0.024638796 = queryNorm
             0.35014832 = fieldWeight in 1660, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.527401 = idf(docFreq=1242, maxDocs=42306)
               0.0546875 = fieldNorm(doc=1660)
         0.091241844 = weight(abstract_txt:finding in 1660) [ClassicSimilarity], result of:
           0.091241844 = score(doc=1660,freq=2.0), product of:
             0.21425296 = queryWeight, product of:
               1.5792218 = boost
               5.506355 = idf(docFreq=466, maxDocs=42306)
               0.024638796 = queryNorm
             0.42586038 = fieldWeight in 1660, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.506355 = idf(docFreq=466, maxDocs=42306)
               0.0546875 = fieldNorm(doc=1660)
         0.065127015 = weight(abstract_txt:formal in 1660) [ClassicSimilarity], result of:
           0.065127015 = score(doc=1660,freq=1.0), product of:
             0.21559973 = queryWeight, product of:
               1.5841775 = boost
               5.523634 = idf(docFreq=458, maxDocs=42306)
               0.024638796 = queryNorm
             0.30207372 = fieldWeight in 1660, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.523634 = idf(docFreq=458, maxDocs=42306)
               0.0546875 = fieldNorm(doc=1660)
         0.03632862 = weight(abstract_txt:based in 1660) [ClassicSimilarity], result of:
           0.03632862 = score(doc=1660,freq=2.0), product of:
             0.14609657 = queryWeight, product of:
               1.8442285 = boost
               3.2151837 = idf(docFreq=4616, maxDocs=42306)
               0.024638796 = queryNorm
             0.24866168 = fieldWeight in 1660, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.2151837 = idf(docFreq=4616, maxDocs=42306)
               0.0546875 = fieldNorm(doc=1660)
         0.03725929 = weight(abstract_txt:have in 1660) [ClassicSimilarity], result of:
           0.03725929 = score(doc=1660,freq=2.0), product of:
             0.14858118 = queryWeight, product of:
               1.8598444 = boost
               3.2424083 = idf(docFreq=4492, maxDocs=42306)
               0.024638796 = queryNorm
             0.25076723 = fieldWeight in 1660, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.2424083 = idf(docFreq=4492, maxDocs=42306)
               0.0546875 = fieldNorm(doc=1660)
         0.04928045 = weight(abstract_txt:context in 1660) [ClassicSimilarity], result of:
           0.04928045 = score(doc=1660,freq=1.0), product of:
             0.20493728 = queryWeight, product of:
               1.8916284 = boost
               4.397093 = idf(docFreq=1415, maxDocs=42306)
               0.024638796 = queryNorm
             0.24046601 = fieldWeight in 1660, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.397093 = idf(docFreq=1415, maxDocs=42306)
               0.0546875 = fieldNorm(doc=1660)
         0.32040492 = weight(abstract_txt:ontology in 1660) [ClassicSimilarity], result of:
           0.32040492 = score(doc=1660,freq=10.0), product of:
             0.33136296 = queryWeight, product of:
               2.4053447 = boost
               5.591227 = idf(docFreq=428, maxDocs=42306)
               0.024638796 = queryNorm
             0.9669304 = fieldWeight in 1660, product of:
               3.1622777 = tf(freq=10.0), with freq of:
                 10.0 = termFreq=10.0
               5.591227 = idf(docFreq=428, maxDocs=42306)
               0.0546875 = fieldNorm(doc=1660)
       0.4 = coord(10/25)