Document (#27092)

Author

Khan, M.S.
Khor, S.

Title

Enhanced Web document retrieval using automatic query expansion

Source

Journal of the American Society for Information Science and technology. 55(2004) no.1, S.29-40

Year

2004

Abstract

The ever growing popularity of the Internet as a source of information, coupled with the accompanying growth in the number of documents made available through the World Wide Web, is leading to an increasing demand for more efficient and accurate information retrieval tools. Numerous techniques have been proposed and tried for improving the effectiveness of searching the World Wide Web for documents relevant to a given topic of interest. The specification of appropriate keywords and phrases by the user is crucial for the successful execution of a query as measured by the relevance of documents retrieved. Lack of users' knowledge an the search topic and their changing information needs often make it difficult for them to find suitable keywords or phrases for a query. This results in searches that fail to cover all likely aspects of the topic of interest. We describe a scheme that attempts to remedy this situation by automatically expanding the user query through the analysis of initially retrieved documents. Experimental results to demonstrate the effectiveness of the query expansion scheure are presented.

Theme

Internet
Semantisches Umfeld in Indexierung u. Retrieval

Similar documents (author)

1. Khan, K.: Knowledge retrieval solutions : an Excalibur Technologies white paper (1998) 6.09

   6.094361 = sum of:
     6.094361 = weight(author_txt:khan in 3336) [ClassicSimilarity], result of:
       6.094361 = fieldWeight in 3336, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.7509775 = idf(docFreq=6, maxDocs=44218)
         0.625 = fieldNorm(doc=3336)
   

2. Khan, K.; Locatis, C.: Searching through cyberspace : the effects of link display and link density on information retrieval from hypertext on the World Wide Web (1998) 4.88

   4.8754888 = sum of:
     4.8754888 = weight(author_txt:khan in 446) [ClassicSimilarity], result of:
       4.8754888 = fieldWeight in 446, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.7509775 = idf(docFreq=6, maxDocs=44218)
         0.5 = fieldNorm(doc=446)
   

3. Khan, K.; Locatis, C.: Searching through cyberspace : the effects of link cues and correspondence on information retrieval from Hypertext on the World Wide Web (1998) 4.88

   4.8754888 = sum of:
     4.8754888 = weight(author_txt:khan in 2321) [ClassicSimilarity], result of:
       4.8754888 = fieldWeight in 2321, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.7509775 = idf(docFreq=6, maxDocs=44218)
         0.5 = fieldNorm(doc=2321)
   

4. Khan, G.F.; Park, H.W.: Measuring the triple helix on the web : longitudinal trends in the university-industry-government relationship in Korea (2011) 4.88

   4.8754888 = sum of:
     4.8754888 = weight(author_txt:khan in 4944) [ClassicSimilarity], result of:
       4.8754888 = fieldWeight in 4944, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.7509775 = idf(docFreq=6, maxDocs=44218)
         0.5 = fieldNorm(doc=4944)
   

5. Swar, B.; Khan, G.F.: ¬An analysis of the information technology outsourcing domain : a social network and Triple helix approach (2013) 4.88

   4.8754888 = sum of:
     4.8754888 = weight(author_txt:khan in 1116) [ClassicSimilarity], result of:
       4.8754888 = fieldWeight in 1116, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.7509775 = idf(docFreq=6, maxDocs=44218)
         0.5 = fieldNorm(doc=1116)
   

Similar documents (content)

1. Rorvig, M.: Scaled structure in visualized TREC data and query feedback (1998) 0.27

   0.27274817 = sum of:
     0.27274817 = product of:
       0.8523381 = sum of:
         0.037604544 = weight(abstract_txt:retrieval in 3269) [ClassicSimilarity], result of:
           0.037604544 = score(doc=3269,freq=3.0), product of:
             0.07996823 = queryWeight, product of:
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.023011517 = queryNorm
             0.47024357 = fieldWeight in 3269, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.078125 = fieldNorm(doc=3269)
         0.021847779 = weight(abstract_txt:results in 3269) [ClassicSimilarity], result of:
           0.021847779 = score(doc=3269,freq=1.0), product of:
             0.08030375 = queryWeight, product of:
               1.0020957 = boost
               3.482422 = idf(docFreq=3693, maxDocs=44218)
               0.023011517 = queryNorm
             0.27206424 = fieldWeight in 3269, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.482422 = idf(docFreq=3693, maxDocs=44218)
               0.078125 = fieldNorm(doc=3269)
         0.08858461 = weight(abstract_txt:specification in 3269) [ClassicSimilarity], result of:
           0.08858461 = score(doc=3269,freq=1.0), product of:
             0.16206646 = queryWeight, product of:
               1.0066369 = boost
               6.996407 = idf(docFreq=109, maxDocs=44218)
               0.023011517 = queryNorm
             0.5465943 = fieldWeight in 3269, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.996407 = idf(docFreq=109, maxDocs=44218)
               0.078125 = fieldNorm(doc=3269)
         0.01101057 = weight(abstract_txt:information in 3269) [ClassicSimilarity], result of:
           0.01101057 = score(doc=3269,freq=1.0), product of:
             0.058214966 = queryWeight, product of:
               1.044971 = boost
               2.4209464 = idf(docFreq=10677, maxDocs=44218)
               0.023011517 = queryNorm
             0.18913643 = fieldWeight in 3269, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4209464 = idf(docFreq=10677, maxDocs=44218)
               0.078125 = fieldNorm(doc=3269)
         0.09620508 = weight(abstract_txt:retrieved in 3269) [ClassicSimilarity], result of:
           0.09620508 = score(doc=3269,freq=1.0), product of:
             0.21573949 = queryWeight, product of:
               1.6425027 = boost
               5.707926 = idf(docFreq=398, maxDocs=44218)
               0.023011517 = queryNorm
             0.4459317 = fieldWeight in 3269, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.707926 = idf(docFreq=398, maxDocs=44218)
               0.078125 = fieldNorm(doc=3269)
         0.17435993 = weight(abstract_txt:topic in 3269) [ClassicSimilarity], result of:
           0.17435993 = score(doc=3269,freq=3.0), product of:
             0.2545377 = queryWeight, product of:
               2.1850579 = boost
               5.062254 = idf(docFreq=760, maxDocs=44218)
               0.023011517 = queryNorm
             0.6850063 = fieldWeight in 3269, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.062254 = idf(docFreq=760, maxDocs=44218)
               0.078125 = fieldNorm(doc=3269)
         0.1448527 = weight(abstract_txt:documents in 3269) [ClassicSimilarity], result of:
           0.1448527 = score(doc=3269,freq=4.0), product of:
             0.22494277 = queryWeight, product of:
               2.3718777 = boost
               4.1213026 = idf(docFreq=1949, maxDocs=44218)
               0.023011517 = queryNorm
             0.64395356 = fieldWeight in 3269, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.1213026 = idf(docFreq=1949, maxDocs=44218)
               0.078125 = fieldNorm(doc=3269)
         0.27787286 = weight(abstract_txt:query in 3269) [ClassicSimilarity], result of:
           0.27787286 = score(doc=3269,freq=4.0), product of:
             0.3741006 = queryWeight, product of:
               3.4198375 = boost
               4.7537646 = idf(docFreq=1035, maxDocs=44218)
               0.023011517 = queryNorm
             0.74277574 = fieldWeight in 3269, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.7537646 = idf(docFreq=1035, maxDocs=44218)
               0.078125 = fieldNorm(doc=3269)
       0.32 = coord(8/25)
   

2. Efthimiadis, E.N.: Interactive query expansion : a user-based evaluation in a relevance feedback environment (2000) 0.26

   0.25653407 = sum of:
     0.25653407 = product of:
       0.9161931 = sum of:
         0.02632318 = weight(abstract_txt:retrieval in 5701) [ClassicSimilarity], result of:
           0.02632318 = score(doc=5701,freq=3.0), product of:
             0.07996823 = queryWeight, product of:
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.023011517 = queryNorm
             0.3291705 = fieldWeight in 5701, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.0546875 = fieldNorm(doc=5701)
         0.026489025 = weight(abstract_txt:results in 5701) [ClassicSimilarity], result of:
           0.026489025 = score(doc=5701,freq=3.0), product of:
             0.08030375 = queryWeight, product of:
               1.0020957 = boost
               3.482422 = idf(docFreq=3693, maxDocs=44218)
               0.023011517 = queryNorm
             0.32986036 = fieldWeight in 5701, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.482422 = idf(docFreq=3693, maxDocs=44218)
               0.0546875 = fieldNorm(doc=5701)
         0.025596093 = weight(abstract_txt:user in 5701) [ClassicSimilarity], result of:
           0.025596093 = score(doc=5701,freq=2.0), product of:
             0.089847244 = queryWeight, product of:
               1.0599701 = boost
               3.6835442 = idf(docFreq=3020, maxDocs=44218)
               0.023011517 = queryNorm
             0.28488457 = fieldWeight in 5701, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.6835442 = idf(docFreq=3020, maxDocs=44218)
               0.0546875 = fieldNorm(doc=5701)
         0.06786912 = weight(abstract_txt:effectiveness in 5701) [ClassicSimilarity], result of:
           0.06786912 = score(doc=5701,freq=2.0), product of:
             0.1721223 = queryWeight, product of:
               1.4671004 = boost
               5.098378 = idf(docFreq=733, maxDocs=44218)
               0.023011517 = queryNorm
             0.39430755 = fieldWeight in 5701, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.098378 = idf(docFreq=733, maxDocs=44218)
               0.0546875 = fieldNorm(doc=5701)
         0.29722264 = weight(abstract_txt:expansion in 5701) [ClassicSimilarity], result of:
           0.29722264 = score(doc=5701,freq=13.0), product of:
             0.24687234 = queryWeight, product of:
               1.7570231 = boost
               6.1059003 = idf(docFreq=267, maxDocs=44218)
               0.023011517 = queryNorm
             1.2039528 = fieldWeight in 5701, product of:
               3.6055512 = tf(freq=13.0), with freq of:
                 13.0 = termFreq=13.0
               6.1059003 = idf(docFreq=267, maxDocs=44218)
               0.0546875 = fieldNorm(doc=5701)
         0.07169842 = weight(abstract_txt:documents in 5701) [ClassicSimilarity], result of:
           0.07169842 = score(doc=5701,freq=2.0), product of:
             0.22494277 = queryWeight, product of:
               2.3718777 = boost
               4.1213026 = idf(docFreq=1949, maxDocs=44218)
               0.023011517 = queryNorm
             0.31874073 = fieldWeight in 5701, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.1213026 = idf(docFreq=1949, maxDocs=44218)
               0.0546875 = fieldNorm(doc=5701)
         0.40099463 = weight(abstract_txt:query in 5701) [ClassicSimilarity], result of:
           0.40099463 = score(doc=5701,freq=17.0), product of:
             0.3741006 = queryWeight, product of:
               3.4198375 = boost
               4.7537646 = idf(docFreq=1035, maxDocs=44218)
               0.023011517 = queryNorm
             1.0718899 = fieldWeight in 5701, product of:
               4.1231055 = tf(freq=17.0), with freq of:
                 17.0 = termFreq=17.0
               4.7537646 = idf(docFreq=1035, maxDocs=44218)
               0.0546875 = fieldNorm(doc=5701)
       0.28 = coord(7/25)
   

3. Barrio, P.; Gravano, L.: Sampling strategies for information extraction over the deep web (2017) 0.25

   0.24750958 = sum of:
     0.24750958 = product of:
       0.6875266 = sum of:
         0.021492787 = weight(abstract_txt:retrieval in 3412) [ClassicSimilarity], result of:
           0.021492787 = score(doc=3412,freq=2.0), product of:
             0.07996823 = queryWeight, product of:
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.023011517 = queryNorm
             0.26876658 = fieldWeight in 3412, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.0546875 = fieldNorm(doc=3412)
         0.021628197 = weight(abstract_txt:results in 3412) [ClassicSimilarity], result of:
           0.021628197 = score(doc=3412,freq=2.0), product of:
             0.08030375 = queryWeight, product of:
               1.0020957 = boost
               3.482422 = idf(docFreq=3693, maxDocs=44218)
               0.023011517 = queryNorm
             0.26932985 = fieldWeight in 3412, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.482422 = idf(docFreq=3693, maxDocs=44218)
               0.0546875 = fieldNorm(doc=3412)
         0.02179982 = weight(abstract_txt:information in 3412) [ClassicSimilarity], result of:
           0.02179982 = score(doc=3412,freq=8.0), product of:
             0.058214966 = queryWeight, product of:
               1.044971 = boost
               2.4209464 = idf(docFreq=10677, maxDocs=44218)
               0.023011517 = queryNorm
             0.37447104 = fieldWeight in 3412, product of:
               2.828427 = tf(freq=8.0), with freq of:
                 8.0 = termFreq=8.0
               2.4209464 = idf(docFreq=10677, maxDocs=44218)
               0.0546875 = fieldNorm(doc=3412)
         0.14279988 = weight(abstract_txt:execution in 3412) [ClassicSimilarity], result of:
           0.14279988 = score(doc=3412,freq=2.0), product of:
             0.22431804 = queryWeight, product of:
               1.1842909 = boost
               8.231152 = idf(docFreq=31, maxDocs=44218)
               0.023011517 = queryNorm
             0.6365956 = fieldWeight in 3412, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               8.231152 = idf(docFreq=31, maxDocs=44218)
               0.0546875 = fieldNorm(doc=3412)
         0.04799072 = weight(abstract_txt:effectiveness in 3412) [ClassicSimilarity], result of:
           0.04799072 = score(doc=3412,freq=1.0), product of:
             0.1721223 = queryWeight, product of:
               1.4671004 = boost
               5.098378 = idf(docFreq=733, maxDocs=44218)
               0.023011517 = queryNorm
             0.27881756 = fieldWeight in 3412, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.098378 = idf(docFreq=733, maxDocs=44218)
               0.0546875 = fieldNorm(doc=3412)
         0.04826183 = weight(abstract_txt:interest in 3412) [ClassicSimilarity], result of:
           0.04826183 = score(doc=3412,freq=1.0), product of:
             0.17276992 = queryWeight, product of:
               1.4698578 = boost
               5.1079607 = idf(docFreq=726, maxDocs=44218)
               0.023011517 = queryNorm
             0.2793416 = fieldWeight in 3412, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.1079607 = idf(docFreq=726, maxDocs=44218)
               0.0546875 = fieldNorm(doc=3412)
         0.11734396 = weight(abstract_txt:phrases in 3412) [ClassicSimilarity], result of:
           0.11734396 = score(doc=3412,freq=1.0), product of:
             0.31239647 = queryWeight, product of:
               1.9764887 = boost
               6.8685737 = idf(docFreq=124, maxDocs=44218)
               0.023011517 = queryNorm
             0.37562513 = fieldWeight in 3412, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.8685737 = idf(docFreq=124, maxDocs=44218)
               0.0546875 = fieldNorm(doc=3412)
         0.07169842 = weight(abstract_txt:documents in 3412) [ClassicSimilarity], result of:
           0.07169842 = score(doc=3412,freq=2.0), product of:
             0.22494277 = queryWeight, product of:
               2.3718777 = boost
               4.1213026 = idf(docFreq=1949, maxDocs=44218)
               0.023011517 = queryNorm
             0.31874073 = fieldWeight in 3412, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.1213026 = idf(docFreq=1949, maxDocs=44218)
               0.0546875 = fieldNorm(doc=3412)
         0.19451098 = weight(abstract_txt:query in 3412) [ClassicSimilarity], result of:
           0.19451098 = score(doc=3412,freq=4.0), product of:
             0.3741006 = queryWeight, product of:
               3.4198375 = boost
               4.7537646 = idf(docFreq=1035, maxDocs=44218)
               0.023011517 = queryNorm
             0.519943 = fieldWeight in 3412, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.7537646 = idf(docFreq=1035, maxDocs=44218)
               0.0546875 = fieldNorm(doc=3412)
       0.36 = coord(9/25)
   

4. Cai, F.; Wang, S.; Rijke, M.de: Behavior-based personalization in web search (2017) 0.25

   0.24713276 = sum of:
     0.24713276 = product of:
       0.68647987 = sum of:
         0.017368797 = weight(abstract_txt:retrieval in 3527) [ClassicSimilarity], result of:
           0.017368797 = score(doc=3527,freq=1.0), product of:
             0.07996823 = queryWeight, product of:
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.023011517 = queryNorm
             0.21719621 = fieldWeight in 3527, 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=3527)
         0.017478222 = weight(abstract_txt:results in 3527) [ClassicSimilarity], result of:
           0.017478222 = score(doc=3527,freq=1.0), product of:
             0.08030375 = queryWeight, product of:
               1.0020957 = boost
               3.482422 = idf(docFreq=3693, maxDocs=44218)
               0.023011517 = queryNorm
             0.21765138 = fieldWeight in 3527, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.482422 = idf(docFreq=3693, maxDocs=44218)
               0.0625 = fieldNorm(doc=3527)
         0.07823739 = weight(abstract_txt:initially in 3527) [ClassicSimilarity], result of:
           0.07823739 = score(doc=3527,freq=1.0), product of:
             0.17311601 = queryWeight, product of:
               1.0403869 = boost
               7.230979 = idf(docFreq=86, maxDocs=44218)
               0.023011517 = queryNorm
             0.4519362 = fieldWeight in 3527, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.230979 = idf(docFreq=86, maxDocs=44218)
               0.0625 = fieldNorm(doc=3527)
         0.017616915 = weight(abstract_txt:information in 3527) [ClassicSimilarity], result of:
           0.017616915 = score(doc=3527,freq=4.0), product of:
             0.058214966 = queryWeight, product of:
               1.044971 = boost
               2.4209464 = idf(docFreq=10677, maxDocs=44218)
               0.023011517 = queryNorm
             0.3026183 = fieldWeight in 3527, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               2.4209464 = idf(docFreq=10677, maxDocs=44218)
               0.0625 = fieldNorm(doc=3527)
         0.03582707 = weight(abstract_txt:user in 3527) [ClassicSimilarity], result of:
           0.03582707 = score(doc=3527,freq=3.0), product of:
             0.089847244 = queryWeight, product of:
               1.0599701 = boost
               3.6835442 = idf(docFreq=3020, maxDocs=44218)
               0.023011517 = queryNorm
             0.39875534 = fieldWeight in 3527, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.6835442 = idf(docFreq=3020, maxDocs=44218)
               0.0625 = fieldNorm(doc=3527)
         0.054846536 = weight(abstract_txt:effectiveness in 3527) [ClassicSimilarity], result of:
           0.054846536 = score(doc=3527,freq=1.0), product of:
             0.1721223 = queryWeight, product of:
               1.4671004 = boost
               5.098378 = idf(docFreq=733, maxDocs=44218)
               0.023011517 = queryNorm
             0.31864864 = fieldWeight in 3527, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.098378 = idf(docFreq=733, maxDocs=44218)
               0.0625 = fieldNorm(doc=3527)
         0.076964065 = weight(abstract_txt:retrieved in 3527) [ClassicSimilarity], result of:
           0.076964065 = score(doc=3527,freq=1.0), product of:
             0.21573949 = queryWeight, product of:
               1.6425027 = boost
               5.707926 = idf(docFreq=398, maxDocs=44218)
               0.023011517 = queryNorm
             0.35674536 = fieldWeight in 3527, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.707926 = idf(docFreq=398, maxDocs=44218)
               0.0625 = fieldNorm(doc=3527)
         0.11588216 = weight(abstract_txt:documents in 3527) [ClassicSimilarity], result of:
           0.11588216 = score(doc=3527,freq=4.0), product of:
             0.22494277 = queryWeight, product of:
               2.3718777 = boost
               4.1213026 = idf(docFreq=1949, maxDocs=44218)
               0.023011517 = queryNorm
             0.5151628 = fieldWeight in 3527, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.1213026 = idf(docFreq=1949, maxDocs=44218)
               0.0625 = fieldNorm(doc=3527)
         0.2722587 = weight(abstract_txt:query in 3527) [ClassicSimilarity], result of:
           0.2722587 = score(doc=3527,freq=6.0), product of:
             0.3741006 = queryWeight, product of:
               3.4198375 = boost
               4.7537646 = idf(docFreq=1035, maxDocs=44218)
               0.023011517 = queryNorm
             0.72776866 = fieldWeight in 3527, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               4.7537646 = idf(docFreq=1035, maxDocs=44218)
               0.0625 = fieldNorm(doc=3527)
       0.36 = coord(9/25)
   

5. Vakkari, P.; Sormunen, E.: ¬The influence of relevance levels an the effectiveness of interactive information retrieval (2004) 0.24

   0.24430107 = sum of:
     0.24430107 = product of:
       0.76344085 = sum of:
         0.030703982 = weight(abstract_txt:retrieval in 2884) [ClassicSimilarity], result of:
           0.030703982 = score(doc=2884,freq=2.0), product of:
             0.07996823 = queryWeight, product of:
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.023011517 = queryNorm
             0.38395226 = fieldWeight in 2884, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.078125 = fieldNorm(doc=2884)
         0.03784146 = weight(abstract_txt:results in 2884) [ClassicSimilarity], result of:
           0.03784146 = score(doc=2884,freq=3.0), product of:
             0.08030375 = queryWeight, product of:
               1.0020957 = boost
               3.482422 = idf(docFreq=3693, maxDocs=44218)
               0.023011517 = queryNorm
             0.47122908 = fieldWeight in 2884, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.482422 = idf(docFreq=3693, maxDocs=44218)
               0.078125 = fieldNorm(doc=2884)
         0.01101057 = weight(abstract_txt:information in 2884) [ClassicSimilarity], result of:
           0.01101057 = score(doc=2884,freq=1.0), product of:
             0.058214966 = queryWeight, product of:
               1.044971 = boost
               2.4209464 = idf(docFreq=10677, maxDocs=44218)
               0.023011517 = queryNorm
             0.18913643 = fieldWeight in 2884, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4209464 = idf(docFreq=10677, maxDocs=44218)
               0.078125 = fieldNorm(doc=2884)
         0.02585596 = weight(abstract_txt:user in 2884) [ClassicSimilarity], result of:
           0.02585596 = score(doc=2884,freq=1.0), product of:
             0.089847244 = queryWeight, product of:
               1.0599701 = boost
               3.6835442 = idf(docFreq=3020, maxDocs=44218)
               0.023011517 = queryNorm
             0.2877769 = fieldWeight in 2884, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6835442 = idf(docFreq=3020, maxDocs=44218)
               0.078125 = fieldNorm(doc=2884)
         0.068558164 = weight(abstract_txt:effectiveness in 2884) [ClassicSimilarity], result of:
           0.068558164 = score(doc=2884,freq=1.0), product of:
             0.1721223 = queryWeight, product of:
               1.4671004 = boost
               5.098378 = idf(docFreq=733, maxDocs=44218)
               0.023011517 = queryNorm
             0.39831078 = fieldWeight in 2884, 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=2884)
         0.20397305 = weight(abstract_txt:expansion in 2884) [ClassicSimilarity], result of:
           0.20397305 = score(doc=2884,freq=3.0), product of:
             0.24687234 = queryWeight, product of:
               1.7570231 = boost
               6.1059003 = idf(docFreq=267, maxDocs=44218)
               0.023011517 = queryNorm
             0.82622886 = fieldWeight in 2884, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.1059003 = idf(docFreq=267, maxDocs=44218)
               0.078125 = fieldNorm(doc=2884)
         0.1448527 = weight(abstract_txt:documents in 2884) [ClassicSimilarity], result of:
           0.1448527 = score(doc=2884,freq=4.0), product of:
             0.22494277 = queryWeight, product of:
               2.3718777 = boost
               4.1213026 = idf(docFreq=1949, maxDocs=44218)
               0.023011517 = queryNorm
             0.64395356 = fieldWeight in 2884, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.1213026 = idf(docFreq=1949, maxDocs=44218)
               0.078125 = fieldNorm(doc=2884)
         0.24064493 = weight(abstract_txt:query in 2884) [ClassicSimilarity], result of:
           0.24064493 = score(doc=2884,freq=3.0), product of:
             0.3741006 = queryWeight, product of:
               3.4198375 = boost
               4.7537646 = idf(docFreq=1035, maxDocs=44218)
               0.023011517 = queryNorm
             0.6432626 = fieldWeight in 2884, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.7537646 = idf(docFreq=1035, maxDocs=44218)
               0.078125 = fieldNorm(doc=2884)
       0.32 = coord(8/25)