Document (#19447)

Author

Voorbij, H.

Title

¬Een goede titel behoeft geen trefwoord, of toch wel? : een vergelijkend oderzoek titelwoorden - trefwoorden

Source

Informatie professional. 1(1997) no.11, S.23-27

Year

1997

Abstract

A recent survey at the Royal Library in the Netherlands showed that subject headings are more efficient than title keywords for retrieval purposes. 475 Dutch publications were selected at random and assigned subject headings. The study showed that subject headings provided additional useful information in 56% of titles. Subsequent searching of the library's online catalogue showed that 88% of titles were retrieved via subject headings against 57% through title keywords. Further precision may be achieved with the help of indexing staff, but at considerable cost

Footnote

Übers. d. Titels: A good title has no need of subject headings, or does it?: a comparative study of title keywords against subject headings

Theme

Retrievalstudien
Verbale Doksprachen im Online-Retrieval

Similar documents (author)

1. Voorbij, H.: ¬De ontwikkeling van het onderwerpsontsluitingssysteem t.b.v. de Nederlandse Bibliografie (1981) 6.10

   6.0972233 = sum of:
     6.0972233 = weight(author_txt:voorbij in 976) [ClassicSimilarity], result of:
       6.0972233 = fieldWeight in 976, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.755557 = idf(docFreq=6, maxDocs=44421)
         0.625 = fieldNorm(doc=976)
   

2. Voorbij, H.: Wetenschappelijke informatie zoeken op Internet : landelijk gebruikersoderzoek (1998) 6.10

   6.0972233 = sum of:
     6.0972233 = weight(author_txt:voorbij in 3868) [ClassicSimilarity], result of:
       6.0972233 = fieldWeight in 3868, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.755557 = idf(docFreq=6, maxDocs=44421)
         0.625 = fieldNorm(doc=3868)
   

3. Voorbij, H.: Titelwoorden - trefwoorden : een vergelijkend onderzoek (1997) 6.10

   6.0972233 = sum of:
     6.0972233 = weight(author_txt:voorbij in 4175) [ClassicSimilarity], result of:
       6.0972233 = fieldWeight in 4175, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.755557 = idf(docFreq=6, maxDocs=44421)
         0.625 = fieldNorm(doc=4175)
   

4. Voorbij, H.: Searching scientific information on the Internet : a Dutch academic user survey (1999) 6.10

   6.0972233 = sum of:
     6.0972233 = weight(author_txt:voorbij in 4546) [ClassicSimilarity], result of:
       6.0972233 = fieldWeight in 4546, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.755557 = idf(docFreq=6, maxDocs=44421)
         0.625 = fieldNorm(doc=4546)
   

5. Voorbij, H.: Title keywords and subject descriptors : a comparison of subject search entries of books in the humanities and social sciences (1998) 6.10

   6.0972233 = sum of:
     6.0972233 = weight(author_txt:voorbij in 5721) [ClassicSimilarity], result of:
       6.0972233 = fieldWeight in 5721, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.755557 = idf(docFreq=6, maxDocs=44421)
         0.625 = fieldNorm(doc=5721)
   

Similar documents (content)

1. Vandewalle, K.: SISO of trefwoorden voor de jeugd? (1995) 0.56

   0.56130326 = sum of:
     0.56130326 = product of:
       2.0046544 = sum of:
         0.019085884 = weight(abstract_txt:that in 2269) [ClassicSimilarity], result of:
           0.019085884 = score(doc=2269,freq=2.0), product of:
             0.060870487 = queryWeight, product of:
               1.255856 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.020494988 = queryNorm
             0.31354907 = fieldWeight in 2269, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.09375 = fieldNorm(doc=2269)
         0.0474535 = weight(abstract_txt:were in 2269) [ClassicSimilarity], result of:
           0.0474535 = score(doc=2269,freq=2.0), product of:
             0.09759188 = queryWeight, product of:
               1.2983676 = boost
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.020494988 = queryNorm
             0.48624435 = fieldWeight in 2269, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.09375 = fieldNorm(doc=2269)
         1.2630906 = weight(title_txt:trefwoorden in 2269) [ClassicSimilarity], result of:
           1.2630906 = score(doc=2269,freq=1.0), product of:
             0.3452639 = queryWeight, product of:
               1.7268373 = boost
               9.755557 = idf(docFreq=6, maxDocs=44421)
               0.020494988 = queryNorm
             3.6583338 = fieldWeight in 2269, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.755557 = idf(docFreq=6, maxDocs=44421)
               0.375 = fieldNorm(doc=2269)
         0.12781432 = weight(abstract_txt:titles in 2269) [ClassicSimilarity], result of:
           0.12781432 = score(doc=2269,freq=1.0), product of:
             0.2380297 = queryWeight, product of:
               2.0277126 = boost
               5.727658 = idf(docFreq=392, maxDocs=44421)
               0.020494988 = queryNorm
             0.53696793 = fieldWeight in 2269, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.727658 = idf(docFreq=392, maxDocs=44421)
               0.09375 = fieldNorm(doc=2269)
         0.1626373 = weight(abstract_txt:subject in 2269) [ClassicSimilarity], result of:
           0.1626373 = score(doc=2269,freq=4.0), product of:
             0.22184429 = queryWeight, product of:
               2.768407 = boost
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.020494988 = queryNorm
             0.73311466 = fieldWeight in 2269, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.09375 = fieldNorm(doc=2269)
         0.1983977 = weight(abstract_txt:showed in 2269) [ClassicSimilarity], result of:
           0.1983977 = score(doc=2269,freq=1.0), product of:
             0.36528596 = queryWeight, product of:
               3.0764718 = boost
               5.7933846 = idf(docFreq=367, maxDocs=44421)
               0.020494988 = queryNorm
             0.5431298 = fieldWeight in 2269, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7933846 = idf(docFreq=367, maxDocs=44421)
               0.09375 = fieldNorm(doc=2269)
         0.18617505 = weight(abstract_txt:headings in 2269) [ClassicSimilarity], result of:
           0.18617505 = score(doc=2269,freq=1.0), product of:
             0.3853622 = queryWeight, product of:
               3.6487188 = boost
               5.1532483 = idf(docFreq=697, maxDocs=44421)
               0.020494988 = queryNorm
             0.48311704 = fieldWeight in 2269, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.1532483 = idf(docFreq=697, maxDocs=44421)
               0.09375 = fieldNorm(doc=2269)
       0.28 = coord(7/25)
   

2. McJunkin, M.C.: Precision and recall in title keyword searching (1995) 0.39

   0.38621515 = sum of:
     0.38621515 = product of:
       1.0728198 = sum of:
         0.05262687 = weight(abstract_txt:retrieved in 3419) [ClassicSimilarity], result of:
           0.05262687 = score(doc=3419,freq=1.0), product of:
             0.11807574 = queryWeight, product of:
               1.0098484 = boost
               5.7050157 = idf(docFreq=401, maxDocs=44421)
               0.020494988 = queryNorm
             0.44570434 = fieldWeight in 3419, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7050157 = idf(docFreq=401, maxDocs=44421)
               0.078125 = fieldNorm(doc=3419)
         0.07895376 = weight(abstract_txt:random in 3419) [ClassicSimilarity], result of:
           0.07895376 = score(doc=3419,freq=1.0), product of:
             0.15474056 = queryWeight, product of:
               1.1560534 = boost
               6.5309834 = idf(docFreq=175, maxDocs=44421)
               0.020494988 = queryNorm
             0.5102331 = fieldWeight in 3419, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.5309834 = idf(docFreq=175, maxDocs=44421)
               0.078125 = fieldNorm(doc=3419)
         0.015904905 = weight(abstract_txt:that in 3419) [ClassicSimilarity], result of:
           0.015904905 = score(doc=3419,freq=2.0), product of:
             0.060870487 = queryWeight, product of:
               1.255856 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.020494988 = queryNorm
             0.2612909 = fieldWeight in 3419, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.078125 = fieldNorm(doc=3419)
         0.055924486 = weight(abstract_txt:were in 3419) [ClassicSimilarity], result of:
           0.055924486 = score(doc=3419,freq=4.0), product of:
             0.09759188 = queryWeight, product of:
               1.2983676 = boost
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.020494988 = queryNorm
             0.5730445 = fieldWeight in 3419, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.078125 = fieldNorm(doc=3419)
         0.23753527 = weight(abstract_txt:title in 3419) [ClassicSimilarity], result of:
           0.23753527 = score(doc=3419,freq=5.0), product of:
             0.23760799 = queryWeight, product of:
               2.0259156 = boost
               5.722582 = idf(docFreq=394, maxDocs=44421)
               0.020494988 = queryNorm
             0.99969393 = fieldWeight in 3419, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               5.722582 = idf(docFreq=394, maxDocs=44421)
               0.078125 = fieldNorm(doc=3419)
         0.10651193 = weight(abstract_txt:titles in 3419) [ClassicSimilarity], result of:
           0.10651193 = score(doc=3419,freq=1.0), product of:
             0.2380297 = queryWeight, product of:
               2.0277126 = boost
               5.727658 = idf(docFreq=392, maxDocs=44421)
               0.020494988 = queryNorm
             0.44747326 = fieldWeight in 3419, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.727658 = idf(docFreq=392, maxDocs=44421)
               0.078125 = fieldNorm(doc=3419)
         0.2743818 = weight(abstract_txt:keywords in 3419) [ClassicSimilarity], result of:
           0.2743818 = score(doc=3419,freq=5.0), product of:
             0.2615848 = queryWeight, product of:
               2.125676 = boost
               6.004374 = idf(docFreq=297, maxDocs=44421)
               0.020494988 = queryNorm
             1.048921 = fieldWeight in 3419, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               6.004374 = idf(docFreq=297, maxDocs=44421)
               0.078125 = fieldNorm(doc=3419)
         0.09583494 = weight(abstract_txt:subject in 3419) [ClassicSimilarity], result of:
           0.09583494 = score(doc=3419,freq=2.0), product of:
             0.22184429 = queryWeight, product of:
               2.768407 = boost
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.020494988 = queryNorm
             0.43199193 = fieldWeight in 3419, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.078125 = fieldNorm(doc=3419)
         0.15514587 = weight(abstract_txt:headings in 3419) [ClassicSimilarity], result of:
           0.15514587 = score(doc=3419,freq=1.0), product of:
             0.3853622 = queryWeight, product of:
               3.6487188 = boost
               5.1532483 = idf(docFreq=697, maxDocs=44421)
               0.020494988 = queryNorm
             0.40259752 = fieldWeight in 3419, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.1532483 = idf(docFreq=697, maxDocs=44421)
               0.078125 = fieldNorm(doc=3419)
       0.36 = coord(9/25)
   

3. Frost, C.O.; Dede, B.A.: Subject heading compatibility between LCSH and catalog files of a large research library : a suggested model for analysis (1988) 0.29

   0.294594 = sum of:
     0.294594 = product of:
       0.92060626 = sum of:
         0.06365295 = weight(abstract_txt:purposes in 654) [ClassicSimilarity], result of:
           0.06365295 = score(doc=654,freq=1.0), product of:
             0.11869902 = queryWeight, product of:
               1.0125102 = boost
               5.720053 = idf(docFreq=395, maxDocs=44421)
               0.020494988 = queryNorm
             0.536255 = fieldWeight in 654, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.720053 = idf(docFreq=395, maxDocs=44421)
               0.09375 = fieldNorm(doc=654)
         0.0759401 = weight(abstract_txt:library's in 654) [ClassicSimilarity], result of:
           0.0759401 = score(doc=654,freq=1.0), product of:
             0.1335208 = queryWeight, product of:
               1.0738665 = boost
               6.066678 = idf(docFreq=279, maxDocs=44421)
               0.020494988 = queryNorm
             0.5687511 = fieldWeight in 654, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.066678 = idf(docFreq=279, maxDocs=44421)
               0.09375 = fieldNorm(doc=654)
         0.07860957 = weight(abstract_txt:assigned in 654) [ClassicSimilarity], result of:
           0.07860957 = score(doc=654,freq=1.0), product of:
             0.1366318 = queryWeight, product of:
               1.0863049 = boost
               6.136947 = idf(docFreq=260, maxDocs=44421)
               0.020494988 = queryNorm
             0.5753388 = fieldWeight in 654, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.136947 = idf(docFreq=260, maxDocs=44421)
               0.09375 = fieldNorm(doc=654)
         0.019085884 = weight(abstract_txt:that in 654) [ClassicSimilarity], result of:
           0.019085884 = score(doc=654,freq=2.0), product of:
             0.060870487 = queryWeight, product of:
               1.255856 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.020494988 = queryNorm
             0.31354907 = fieldWeight in 654, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.09375 = fieldNorm(doc=654)
         0.0474535 = weight(abstract_txt:were in 654) [ClassicSimilarity], result of:
           0.0474535 = score(doc=654,freq=2.0), product of:
             0.09759188 = queryWeight, product of:
               1.2983676 = boost
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.020494988 = queryNorm
             0.48624435 = fieldWeight in 654, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.09375 = fieldNorm(doc=654)
         0.115001924 = weight(abstract_txt:subject in 654) [ClassicSimilarity], result of:
           0.115001924 = score(doc=654,freq=2.0), product of:
             0.22184429 = queryWeight, product of:
               2.768407 = boost
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.020494988 = queryNorm
             0.5183903 = fieldWeight in 654, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.09375 = fieldNorm(doc=654)
         0.1983977 = weight(abstract_txt:showed in 654) [ClassicSimilarity], result of:
           0.1983977 = score(doc=654,freq=1.0), product of:
             0.36528596 = queryWeight, product of:
               3.0764718 = boost
               5.7933846 = idf(docFreq=367, maxDocs=44421)
               0.020494988 = queryNorm
             0.5431298 = fieldWeight in 654, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7933846 = idf(docFreq=367, maxDocs=44421)
               0.09375 = fieldNorm(doc=654)
         0.32246464 = weight(abstract_txt:headings in 654) [ClassicSimilarity], result of:
           0.32246464 = score(doc=654,freq=3.0), product of:
             0.3853622 = queryWeight, product of:
               3.6487188 = boost
               5.1532483 = idf(docFreq=697, maxDocs=44421)
               0.020494988 = queryNorm
             0.83678323 = fieldWeight in 654, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.1532483 = idf(docFreq=697, maxDocs=44421)
               0.09375 = fieldNorm(doc=654)
       0.32 = coord(8/25)
   

4. Xu, H.; Lancaster, F.W.: Redundancy and uniqueness of subject access points in online catalogs (1998) 0.26

   0.26493007 = sum of:
     0.26493007 = product of:
       0.8279065 = sum of:
         0.07128855 = weight(abstract_txt:considerable in 2788) [ClassicSimilarity], result of:
           0.07128855 = score(doc=2788,freq=1.0), product of:
             0.14455579 = queryWeight, product of:
               1.1173612 = boost
               6.312396 = idf(docFreq=218, maxDocs=44421)
               0.020494988 = queryNorm
             0.49315596 = fieldWeight in 2788, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.312396 = idf(docFreq=218, maxDocs=44421)
               0.078125 = fieldNorm(doc=2788)
         0.015904905 = weight(abstract_txt:that in 2788) [ClassicSimilarity], result of:
           0.015904905 = score(doc=2788,freq=2.0), product of:
             0.060870487 = queryWeight, product of:
               1.255856 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.020494988 = queryNorm
             0.2612909 = fieldWeight in 2788, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.078125 = fieldNorm(doc=2788)
         0.027962243 = weight(abstract_txt:were in 2788) [ClassicSimilarity], result of:
           0.027962243 = score(doc=2788,freq=1.0), product of:
             0.09759188 = queryWeight, product of:
               1.2983676 = boost
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.020494988 = queryNorm
             0.28652224 = fieldWeight in 2788, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.078125 = fieldNorm(doc=2788)
         0.15023048 = weight(abstract_txt:title in 2788) [ClassicSimilarity], result of:
           0.15023048 = score(doc=2788,freq=2.0), product of:
             0.23760799 = queryWeight, product of:
               2.0259156 = boost
               5.722582 = idf(docFreq=394, maxDocs=44421)
               0.020494988 = queryNorm
             0.63226193 = fieldWeight in 2788, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.722582 = idf(docFreq=394, maxDocs=44421)
               0.078125 = fieldNorm(doc=2788)
         0.10651193 = weight(abstract_txt:titles in 2788) [ClassicSimilarity], result of:
           0.10651193 = score(doc=2788,freq=1.0), product of:
             0.2380297 = queryWeight, product of:
               2.0277126 = boost
               5.727658 = idf(docFreq=392, maxDocs=44421)
               0.020494988 = queryNorm
             0.44747326 = fieldWeight in 2788, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.727658 = idf(docFreq=392, maxDocs=44421)
               0.078125 = fieldNorm(doc=2788)
         0.13553108 = weight(abstract_txt:subject in 2788) [ClassicSimilarity], result of:
           0.13553108 = score(doc=2788,freq=4.0), product of:
             0.22184429 = queryWeight, product of:
               2.768407 = boost
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.020494988 = queryNorm
             0.6109289 = fieldWeight in 2788, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.078125 = fieldNorm(doc=2788)
         0.16533141 = weight(abstract_txt:showed in 2788) [ClassicSimilarity], result of:
           0.16533141 = score(doc=2788,freq=1.0), product of:
             0.36528596 = queryWeight, product of:
               3.0764718 = boost
               5.7933846 = idf(docFreq=367, maxDocs=44421)
               0.020494988 = queryNorm
             0.45260817 = fieldWeight in 2788, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7933846 = idf(docFreq=367, maxDocs=44421)
               0.078125 = fieldNorm(doc=2788)
         0.15514587 = weight(abstract_txt:headings in 2788) [ClassicSimilarity], result of:
           0.15514587 = score(doc=2788,freq=1.0), product of:
             0.3853622 = queryWeight, product of:
               3.6487188 = boost
               5.1532483 = idf(docFreq=697, maxDocs=44421)
               0.020494988 = queryNorm
             0.40259752 = fieldWeight in 2788, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.1532483 = idf(docFreq=697, maxDocs=44421)
               0.078125 = fieldNorm(doc=2788)
       0.32 = coord(8/25)
   

5. Voorbij, H.: Title keywords and subject descriptors : a comparison of subject search entries of books in the humanities and social sciences (1998) 0.26

   0.25652406 = sum of:
     0.25652406 = product of:
       0.80163765 = sum of:
         0.03683881 = weight(abstract_txt:retrieved in 5721) [ClassicSimilarity], result of:
           0.03683881 = score(doc=5721,freq=1.0), product of:
             0.11807574 = queryWeight, product of:
               1.0098484 = boost
               5.7050157 = idf(docFreq=401, maxDocs=44421)
               0.020494988 = queryNorm
             0.31199303 = fieldWeight in 5721, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7050157 = idf(docFreq=401, maxDocs=44421)
               0.0546875 = fieldNorm(doc=5721)
         0.06944512 = weight(abstract_txt:netherlands in 5721) [ClassicSimilarity], result of:
           0.06944512 = score(doc=5721,freq=1.0), product of:
             0.18018478 = queryWeight, product of:
               1.2474837 = boost
               7.0475073 = idf(docFreq=104, maxDocs=44421)
               0.020494988 = queryNorm
             0.38541055 = fieldWeight in 5721, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.0475073 = idf(docFreq=104, maxDocs=44421)
               0.0546875 = fieldNorm(doc=5721)
         0.011133432 = weight(abstract_txt:that in 5721) [ClassicSimilarity], result of:
           0.011133432 = score(doc=5721,freq=2.0), product of:
             0.060870487 = queryWeight, product of:
               1.255856 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.020494988 = queryNorm
             0.18290362 = fieldWeight in 5721, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.0546875 = fieldNorm(doc=5721)
         0.033902418 = weight(abstract_txt:were in 5721) [ClassicSimilarity], result of:
           0.033902418 = score(doc=5721,freq=3.0), product of:
             0.09759188 = queryWeight, product of:
               1.2983676 = boost
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.020494988 = queryNorm
             0.34738976 = fieldWeight in 5721, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.0546875 = fieldNorm(doc=5721)
         0.22308089 = weight(abstract_txt:title in 5721) [ClassicSimilarity], result of:
           0.22308089 = score(doc=5721,freq=9.0), product of:
             0.23760799 = queryWeight, product of:
               2.0259156 = boost
               5.722582 = idf(docFreq=394, maxDocs=44421)
               0.020494988 = queryNorm
             0.9388611 = fieldWeight in 5721, product of:
               3.0 = tf(freq=9.0), with freq of:
                 9.0 = termFreq=9.0
               5.722582 = idf(docFreq=394, maxDocs=44421)
               0.0546875 = fieldNorm(doc=5721)
         0.10544142 = weight(abstract_txt:titles in 5721) [ClassicSimilarity], result of:
           0.10544142 = score(doc=5721,freq=2.0), product of:
             0.2380297 = queryWeight, product of:
               2.0277126 = boost
               5.727658 = idf(docFreq=392, maxDocs=44421)
               0.020494988 = queryNorm
             0.4429759 = fieldWeight in 5721, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.727658 = idf(docFreq=392, maxDocs=44421)
               0.0546875 = fieldNorm(doc=5721)
         0.17179015 = weight(abstract_txt:keywords in 5721) [ClassicSimilarity], result of:
           0.17179015 = score(doc=5721,freq=4.0), product of:
             0.2615848 = queryWeight, product of:
               2.125676 = boost
               6.004374 = idf(docFreq=297, maxDocs=44421)
               0.020494988 = queryNorm
             0.6567284 = fieldWeight in 5721, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               6.004374 = idf(docFreq=297, maxDocs=44421)
               0.0546875 = fieldNorm(doc=5721)
         0.15000542 = weight(abstract_txt:subject in 5721) [ClassicSimilarity], result of:
           0.15000542 = score(doc=5721,freq=10.0), product of:
             0.22184429 = queryWeight, product of:
               2.768407 = boost
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.020494988 = queryNorm
             0.67617434 = fieldWeight in 5721, product of:
               3.1622777 = tf(freq=10.0), with freq of:
                 10.0 = termFreq=10.0
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.0546875 = fieldNorm(doc=5721)
       0.32 = coord(8/25)