Document (#21088)

Editor

Voorhees, E.M. u. D.K. Harman

Title

¬The Fifth Text Retrieval Conference (TREC-5)

Imprint

Gaithersburgh, MD : National Institute of Standards and Technology

Year

1997

Pages

546 S

Series

NIST special publication;

Abstract

Proceedings of the 5th TREC-confrerence held in Gaithersburgh, Maryland, Nov 20-22, 1996. Aim of the conference was discussion on retrieval techniques for large test collections. Different research groups used different techniques, such as automated thesauri, term weighting, natural language techniques, relevance feedback and advanced pattern matching, for information retrieval from the same large database. This procedure makes it possible to compare the results. The proceedings include papers, tables of the system results, and brief system descriptions including timing and storage information

Theme

Retrievalstudien

Object

TREC

Similar documents (content)

1. ¬The Sixth Text Retrieval Conference (TREC-6) (1998) 2.44

   2.4397333 = sum of:
     2.4397333 = product of:
       2.7724242 = sum of:
         0.07871484 = weight(abstract_txt:compare in 5476) [ClassicSimilarity], result of:
           0.07871484 = score(doc=5476,freq=1.0), product of:
             0.12828134 = queryWeight, product of:
               5.6101575 = idf(docFreq=441, maxDocs=44421)
               0.022865906 = queryNorm
             0.613611 = fieldWeight in 5476, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6101575 = idf(docFreq=441, maxDocs=44421)
               0.109375 = fieldNorm(doc=5476)
         0.07997813 = weight(abstract_txt:brief in 5476) [ClassicSimilarity], result of:
           0.07997813 = score(doc=5476,freq=1.0), product of:
             0.12965022 = queryWeight, product of:
               1.0053213 = boost
               5.640011 = idf(docFreq=428, maxDocs=44421)
               0.022865906 = queryNorm
             0.6168762 = fieldWeight in 5476, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.640011 = idf(docFreq=428, maxDocs=44421)
               0.109375 = fieldNorm(doc=5476)
         0.0888223 = weight(abstract_txt:storage in 5476) [ClassicSimilarity], result of:
           0.0888223 = score(doc=5476,freq=1.0), product of:
             0.13904022 = queryWeight, product of:
               1.0410905 = boost
               5.8406816 = idf(docFreq=350, maxDocs=44421)
               0.022865906 = queryNorm
             0.6388245 = fieldWeight in 5476, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.8406816 = idf(docFreq=350, maxDocs=44421)
               0.109375 = fieldNorm(doc=5476)
         0.089878306 = weight(abstract_txt:advanced in 5476) [ClassicSimilarity], result of:
           0.089878306 = score(doc=5476,freq=1.0), product of:
             0.14014007 = queryWeight, product of:
               1.0452001 = boost
               5.863737 = idf(docFreq=342, maxDocs=44421)
               0.022865906 = queryNorm
             0.6413462 = fieldWeight in 5476, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.863737 = idf(docFreq=342, maxDocs=44421)
               0.109375 = fieldNorm(doc=5476)
         0.09266931 = weight(abstract_txt:held in 5476) [ClassicSimilarity], result of:
           0.09266931 = score(doc=5476,freq=1.0), product of:
             0.14302646 = queryWeight, product of:
               1.0559089 = boost
               5.9238153 = idf(docFreq=322, maxDocs=44421)
               0.022865906 = queryNorm
             0.6479173 = fieldWeight in 5476, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.9238153 = idf(docFreq=322, maxDocs=44421)
               0.109375 = fieldNorm(doc=5476)
         0.09266931 = weight(abstract_txt:descriptions in 5476) [ClassicSimilarity], result of:
           0.09266931 = score(doc=5476,freq=1.0), product of:
             0.14302646 = queryWeight, product of:
               1.0559089 = boost
               5.9238153 = idf(docFreq=322, maxDocs=44421)
               0.022865906 = queryNorm
             0.6479173 = fieldWeight in 5476, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.9238153 = idf(docFreq=322, maxDocs=44421)
               0.109375 = fieldNorm(doc=5476)
         0.09340342 = weight(abstract_txt:feedback in 5476) [ClassicSimilarity], result of:
           0.09340342 = score(doc=5476,freq=1.0), product of:
             0.14378081 = queryWeight, product of:
               1.0586898 = boost
               5.9394164 = idf(docFreq=317, maxDocs=44421)
               0.022865906 = queryNorm
             0.6496237 = fieldWeight in 5476, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.9394164 = idf(docFreq=317, maxDocs=44421)
               0.109375 = fieldNorm(doc=5476)
         0.098326474 = weight(abstract_txt:matching in 5476) [ClassicSimilarity], result of:
           0.098326474 = score(doc=5476,freq=1.0), product of:
             0.14878964 = queryWeight, product of:
               1.0769725 = boost
               6.0419855 = idf(docFreq=286, maxDocs=44421)
               0.022865906 = queryNorm
             0.6608422 = fieldWeight in 5476, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.0419855 = idf(docFreq=286, maxDocs=44421)
               0.109375 = fieldNorm(doc=5476)
         0.10819107 = weight(abstract_txt:pattern in 5476) [ClassicSimilarity], result of:
           0.10819107 = score(doc=5476,freq=1.0), product of:
             0.15858181 = queryWeight, product of:
               1.1118468 = boost
               6.2376356 = idf(docFreq=235, maxDocs=44421)
               0.022865906 = queryNorm
             0.6822414 = fieldWeight in 5476, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.2376356 = idf(docFreq=235, maxDocs=44421)
               0.109375 = fieldNorm(doc=5476)
         0.12755129 = weight(abstract_txt:procedure in 5476) [ClassicSimilarity], result of:
           0.12755129 = score(doc=5476,freq=1.0), product of:
             0.17697652 = queryWeight, product of:
               1.1745623 = boost
               6.58948 = idf(docFreq=165, maxDocs=44421)
               0.022865906 = queryNorm
             0.72072434 = fieldWeight in 5476, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.58948 = idf(docFreq=165, maxDocs=44421)
               0.109375 = fieldNorm(doc=5476)
         0.13273643 = weight(abstract_txt:tables in 5476) [ClassicSimilarity], result of:
           0.13273643 = score(doc=5476,freq=1.0), product of:
             0.18174082 = queryWeight, product of:
               1.1902673 = boost
               6.677587 = idf(docFreq=151, maxDocs=44421)
               0.022865906 = queryNorm
             0.7303611 = fieldWeight in 5476, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.677587 = idf(docFreq=151, maxDocs=44421)
               0.109375 = fieldNorm(doc=5476)
         0.048376955 = weight(abstract_txt:system in 5476) [ClassicSimilarity], result of:
           0.048376955 = score(doc=5476,freq=2.0), product of:
             0.092729546 = queryWeight, product of:
               1.2023816 = boost
               3.372775 = idf(docFreq=4140, maxDocs=44421)
               0.022865906 = queryNorm
             0.5216995 = fieldWeight in 5476, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.372775 = idf(docFreq=4140, maxDocs=44421)
               0.109375 = fieldNorm(doc=5476)
         0.053077072 = weight(abstract_txt:results in 5476) [ClassicSimilarity], result of:
           0.053077072 = score(doc=5476,freq=2.0), product of:
             0.098642424 = queryWeight, product of:
               1.240124 = boost
               3.4786456 = idf(docFreq=3724, maxDocs=44421)
               0.022865906 = queryNorm
             0.5380755 = fieldWeight in 5476, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.4786456 = idf(docFreq=3724, maxDocs=44421)
               0.109375 = fieldNorm(doc=5476)
         0.15121405 = weight(abstract_txt:weighting in 5476) [ClassicSimilarity], result of:
           0.15121405 = score(doc=5476,freq=1.0), product of:
             0.19823812 = queryWeight, product of:
               1.2431165 = boost
               6.9740796 = idf(docFreq=112, maxDocs=44421)
               0.022865906 = queryNorm
             0.76278996 = fieldWeight in 5476, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.9740796 = idf(docFreq=112, maxDocs=44421)
               0.109375 = fieldNorm(doc=5476)
         0.04370283 = weight(abstract_txt:different in 5476) [ClassicSimilarity], result of:
           0.04370283 = score(doc=5476,freq=1.0), product of:
             0.10917976 = queryWeight, product of:
               1.304681 = boost
               3.6597328 = idf(docFreq=3107, maxDocs=44421)
               0.022865906 = queryNorm
             0.40028328 = fieldWeight in 5476, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6597328 = idf(docFreq=3107, maxDocs=44421)
               0.109375 = fieldNorm(doc=5476)
         0.2409815 = weight(abstract_txt:maryland in 5476) [ClassicSimilarity], result of:
           0.2409815 = score(doc=5476,freq=1.0), product of:
             0.27046737 = queryWeight, product of:
               1.4520304 = boost
               8.146119 = idf(docFreq=34, maxDocs=44421)
               0.022865906 = queryNorm
             0.8909818 = fieldWeight in 5476, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.146119 = idf(docFreq=34, maxDocs=44421)
               0.109375 = fieldNorm(doc=5476)
         0.1105389 = weight(abstract_txt:large in 5476) [ClassicSimilarity], result of:
           0.1105389 = score(doc=5476,freq=2.0), product of:
             0.16086781 = queryWeight, product of:
               1.5836815 = boost
               4.4423513 = idf(docFreq=1420, maxDocs=44421)
               0.022865906 = queryNorm
             0.6871412 = fieldWeight in 5476, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.4423513 = idf(docFreq=1420, maxDocs=44421)
               0.109375 = fieldNorm(doc=5476)
         0.32426924 = weight(abstract_txt:timing in 5476) [ClassicSimilarity], result of:
           0.32426924 = score(doc=5476,freq=1.0), product of:
             0.32965747 = queryWeight, product of:
               1.6030598 = boost
               8.993418 = idf(docFreq=14, maxDocs=44421)
               0.022865906 = queryNorm
             0.9836551 = fieldWeight in 5476, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.993418 = idf(docFreq=14, maxDocs=44421)
               0.109375 = fieldNorm(doc=5476)
         0.0794684 = weight(abstract_txt:retrieval in 5476) [ClassicSimilarity], result of:
           0.0794684 = score(doc=5476,freq=2.0), product of:
             0.14778118 = queryWeight, product of:
               1.8590388 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.022865906 = queryNorm
             0.5377437 = fieldWeight in 5476, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.109375 = fieldNorm(doc=5476)
         0.15355434 = weight(abstract_txt:conference in 5476) [ClassicSimilarity], result of:
           0.15355434 = score(doc=5476,freq=1.0), product of:
             0.25233477 = queryWeight, product of:
               1.9834526 = boost
               5.5637407 = idf(docFreq=462, maxDocs=44421)
               0.022865906 = queryNorm
             0.60853416 = fieldWeight in 5476, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5637407 = idf(docFreq=462, maxDocs=44421)
               0.109375 = fieldNorm(doc=5476)
         0.26866618 = weight(abstract_txt:trec in 5476) [ClassicSimilarity], result of:
           0.26866618 = score(doc=5476,freq=1.0), product of:
             0.36639068 = queryWeight, product of:
               2.3900416 = boost
               6.704255 = idf(docFreq=147, maxDocs=44421)
               0.022865906 = queryNorm
             0.7332779 = fieldWeight in 5476, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.704255 = idf(docFreq=147, maxDocs=44421)
               0.109375 = fieldNorm(doc=5476)
         0.21563375 = weight(abstract_txt:techniques in 5476) [ClassicSimilarity], result of:
           0.21563375 = score(doc=5476,freq=3.0), product of:
             0.25115216 = queryWeight, product of:
               2.4235241 = boost
               4.5321174 = idf(docFreq=1298, maxDocs=44421)
               0.022865906 = queryNorm
             0.85857815 = fieldWeight in 5476, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.5321174 = idf(docFreq=1298, maxDocs=44421)
               0.109375 = fieldNorm(doc=5476)
       0.88 = coord(22/25)
   

2. ¬The Fourth Text Retrieval Conference (TREC-4) (1996) 2.18

   2.1831431 = sum of:
     2.1831431 = product of:
       2.59898 = sum of:
         0.07871484 = weight(abstract_txt:compare in 590) [ClassicSimilarity], result of:
           0.07871484 = score(doc=590,freq=1.0), product of:
             0.12828134 = queryWeight, product of:
               5.6101575 = idf(docFreq=441, maxDocs=44421)
               0.022865906 = queryNorm
             0.613611 = fieldWeight in 590, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6101575 = idf(docFreq=441, maxDocs=44421)
               0.109375 = fieldNorm(doc=590)
         0.07997813 = weight(abstract_txt:brief in 590) [ClassicSimilarity], result of:
           0.07997813 = score(doc=590,freq=1.0), product of:
             0.12965022 = queryWeight, product of:
               1.0053213 = boost
               5.640011 = idf(docFreq=428, maxDocs=44421)
               0.022865906 = queryNorm
             0.6168762 = fieldWeight in 590, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.640011 = idf(docFreq=428, maxDocs=44421)
               0.109375 = fieldNorm(doc=590)
         0.0888223 = weight(abstract_txt:storage in 590) [ClassicSimilarity], result of:
           0.0888223 = score(doc=590,freq=1.0), product of:
             0.13904022 = queryWeight, product of:
               1.0410905 = boost
               5.8406816 = idf(docFreq=350, maxDocs=44421)
               0.022865906 = queryNorm
             0.6388245 = fieldWeight in 590, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.8406816 = idf(docFreq=350, maxDocs=44421)
               0.109375 = fieldNorm(doc=590)
         0.089878306 = weight(abstract_txt:advanced in 590) [ClassicSimilarity], result of:
           0.089878306 = score(doc=590,freq=1.0), product of:
             0.14014007 = queryWeight, product of:
               1.0452001 = boost
               5.863737 = idf(docFreq=342, maxDocs=44421)
               0.022865906 = queryNorm
             0.6413462 = fieldWeight in 590, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.863737 = idf(docFreq=342, maxDocs=44421)
               0.109375 = fieldNorm(doc=590)
         0.09266931 = weight(abstract_txt:held in 590) [ClassicSimilarity], result of:
           0.09266931 = score(doc=590,freq=1.0), product of:
             0.14302646 = queryWeight, product of:
               1.0559089 = boost
               5.9238153 = idf(docFreq=322, maxDocs=44421)
               0.022865906 = queryNorm
             0.6479173 = fieldWeight in 590, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.9238153 = idf(docFreq=322, maxDocs=44421)
               0.109375 = fieldNorm(doc=590)
         0.09266931 = weight(abstract_txt:descriptions in 590) [ClassicSimilarity], result of:
           0.09266931 = score(doc=590,freq=1.0), product of:
             0.14302646 = queryWeight, product of:
               1.0559089 = boost
               5.9238153 = idf(docFreq=322, maxDocs=44421)
               0.022865906 = queryNorm
             0.6479173 = fieldWeight in 590, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.9238153 = idf(docFreq=322, maxDocs=44421)
               0.109375 = fieldNorm(doc=590)
         0.09340342 = weight(abstract_txt:feedback in 590) [ClassicSimilarity], result of:
           0.09340342 = score(doc=590,freq=1.0), product of:
             0.14378081 = queryWeight, product of:
               1.0586898 = boost
               5.9394164 = idf(docFreq=317, maxDocs=44421)
               0.022865906 = queryNorm
             0.6496237 = fieldWeight in 590, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.9394164 = idf(docFreq=317, maxDocs=44421)
               0.109375 = fieldNorm(doc=590)
         0.098326474 = weight(abstract_txt:matching in 590) [ClassicSimilarity], result of:
           0.098326474 = score(doc=590,freq=1.0), product of:
             0.14878964 = queryWeight, product of:
               1.0769725 = boost
               6.0419855 = idf(docFreq=286, maxDocs=44421)
               0.022865906 = queryNorm
             0.6608422 = fieldWeight in 590, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.0419855 = idf(docFreq=286, maxDocs=44421)
               0.109375 = fieldNorm(doc=590)
         0.10819107 = weight(abstract_txt:pattern in 590) [ClassicSimilarity], result of:
           0.10819107 = score(doc=590,freq=1.0), product of:
             0.15858181 = queryWeight, product of:
               1.1118468 = boost
               6.2376356 = idf(docFreq=235, maxDocs=44421)
               0.022865906 = queryNorm
             0.6822414 = fieldWeight in 590, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.2376356 = idf(docFreq=235, maxDocs=44421)
               0.109375 = fieldNorm(doc=590)
         0.12755129 = weight(abstract_txt:procedure in 590) [ClassicSimilarity], result of:
           0.12755129 = score(doc=590,freq=1.0), product of:
             0.17697652 = queryWeight, product of:
               1.1745623 = boost
               6.58948 = idf(docFreq=165, maxDocs=44421)
               0.022865906 = queryNorm
             0.72072434 = fieldWeight in 590, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.58948 = idf(docFreq=165, maxDocs=44421)
               0.109375 = fieldNorm(doc=590)
         0.13273643 = weight(abstract_txt:tables in 590) [ClassicSimilarity], result of:
           0.13273643 = score(doc=590,freq=1.0), product of:
             0.18174082 = queryWeight, product of:
               1.1902673 = boost
               6.677587 = idf(docFreq=151, maxDocs=44421)
               0.022865906 = queryNorm
             0.7303611 = fieldWeight in 590, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.677587 = idf(docFreq=151, maxDocs=44421)
               0.109375 = fieldNorm(doc=590)
         0.034207676 = weight(abstract_txt:system in 590) [ClassicSimilarity], result of:
           0.034207676 = score(doc=590,freq=1.0), product of:
             0.092729546 = queryWeight, product of:
               1.2023816 = boost
               3.372775 = idf(docFreq=4140, maxDocs=44421)
               0.022865906 = queryNorm
             0.36889726 = fieldWeight in 590, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.372775 = idf(docFreq=4140, maxDocs=44421)
               0.109375 = fieldNorm(doc=590)
         0.053077072 = weight(abstract_txt:results in 590) [ClassicSimilarity], result of:
           0.053077072 = score(doc=590,freq=2.0), product of:
             0.098642424 = queryWeight, product of:
               1.240124 = boost
               3.4786456 = idf(docFreq=3724, maxDocs=44421)
               0.022865906 = queryNorm
             0.5380755 = fieldWeight in 590, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.4786456 = idf(docFreq=3724, maxDocs=44421)
               0.109375 = fieldNorm(doc=590)
         0.15121405 = weight(abstract_txt:weighting in 590) [ClassicSimilarity], result of:
           0.15121405 = score(doc=590,freq=1.0), product of:
             0.19823812 = queryWeight, product of:
               1.2431165 = boost
               6.9740796 = idf(docFreq=112, maxDocs=44421)
               0.022865906 = queryNorm
             0.76278996 = fieldWeight in 590, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.9740796 = idf(docFreq=112, maxDocs=44421)
               0.109375 = fieldNorm(doc=590)
         0.061805137 = weight(abstract_txt:different in 590) [ClassicSimilarity], result of:
           0.061805137 = score(doc=590,freq=2.0), product of:
             0.10917976 = queryWeight, product of:
               1.304681 = boost
               3.6597328 = idf(docFreq=3107, maxDocs=44421)
               0.022865906 = queryNorm
             0.56608605 = fieldWeight in 590, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.6597328 = idf(docFreq=3107, maxDocs=44421)
               0.109375 = fieldNorm(doc=590)
         0.1105389 = weight(abstract_txt:large in 590) [ClassicSimilarity], result of:
           0.1105389 = score(doc=590,freq=2.0), product of:
             0.16086781 = queryWeight, product of:
               1.5836815 = boost
               4.4423513 = idf(docFreq=1420, maxDocs=44421)
               0.022865906 = queryNorm
             0.6871412 = fieldWeight in 590, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.4423513 = idf(docFreq=1420, maxDocs=44421)
               0.109375 = fieldNorm(doc=590)
         0.32426924 = weight(abstract_txt:timing in 590) [ClassicSimilarity], result of:
           0.32426924 = score(doc=590,freq=1.0), product of:
             0.32965747 = queryWeight, product of:
               1.6030598 = boost
               8.993418 = idf(docFreq=14, maxDocs=44421)
               0.022865906 = queryNorm
             0.9836551 = fieldWeight in 590, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.993418 = idf(docFreq=14, maxDocs=44421)
               0.109375 = fieldNorm(doc=590)
         0.0794684 = weight(abstract_txt:retrieval in 590) [ClassicSimilarity], result of:
           0.0794684 = score(doc=590,freq=2.0), product of:
             0.14778118 = queryWeight, product of:
               1.8590388 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.022865906 = queryNorm
             0.5377437 = fieldWeight in 590, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.109375 = fieldNorm(doc=590)
         0.21715862 = weight(abstract_txt:conference in 590) [ClassicSimilarity], result of:
           0.21715862 = score(doc=590,freq=2.0), product of:
             0.25233477 = queryWeight, product of:
               1.9834526 = boost
               5.5637407 = idf(docFreq=462, maxDocs=44421)
               0.022865906 = queryNorm
             0.86059725 = fieldWeight in 590, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.5637407 = idf(docFreq=462, maxDocs=44421)
               0.109375 = fieldNorm(doc=590)
         0.26866618 = weight(abstract_txt:trec in 590) [ClassicSimilarity], result of:
           0.26866618 = score(doc=590,freq=1.0), product of:
             0.36639068 = queryWeight, product of:
               2.3900416 = boost
               6.704255 = idf(docFreq=147, maxDocs=44421)
               0.022865906 = queryNorm
             0.7332779 = fieldWeight in 590, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.704255 = idf(docFreq=147, maxDocs=44421)
               0.109375 = fieldNorm(doc=590)
         0.21563375 = weight(abstract_txt:techniques in 590) [ClassicSimilarity], result of:
           0.21563375 = score(doc=590,freq=3.0), product of:
             0.25115216 = queryWeight, product of:
               2.4235241 = boost
               4.5321174 = idf(docFreq=1298, maxDocs=44421)
               0.022865906 = queryNorm
             0.85857815 = fieldWeight in 590, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.5321174 = idf(docFreq=1298, maxDocs=44421)
               0.109375 = fieldNorm(doc=590)
       0.84 = coord(21/25)
   

3. Harman, D.: Overview of the first Text Retrieval Conference (1993) 0.81

   0.8088467 = sum of:
     0.8088467 = product of:
       1.4443691 = sum of:
         0.067469865 = weight(abstract_txt:compare in 616) [ClassicSimilarity], result of:
           0.067469865 = score(doc=616,freq=1.0), product of:
             0.12828134 = queryWeight, product of:
               5.6101575 = idf(docFreq=441, maxDocs=44421)
               0.022865906 = queryNorm
             0.5259523 = fieldWeight in 616, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6101575 = idf(docFreq=441, maxDocs=44421)
               0.09375 = fieldNorm(doc=616)
         0.07703855 = weight(abstract_txt:advanced in 616) [ClassicSimilarity], result of:
           0.07703855 = score(doc=616,freq=1.0), product of:
             0.14014007 = queryWeight, product of:
               1.0452001 = boost
               5.863737 = idf(docFreq=342, maxDocs=44421)
               0.022865906 = queryNorm
             0.54972535 = fieldWeight in 616, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.863737 = idf(docFreq=342, maxDocs=44421)
               0.09375 = fieldNorm(doc=616)
         0.07943084 = weight(abstract_txt:held in 616) [ClassicSimilarity], result of:
           0.07943084 = score(doc=616,freq=1.0), product of:
             0.14302646 = queryWeight, product of:
               1.0559089 = boost
               5.9238153 = idf(docFreq=322, maxDocs=44421)
               0.022865906 = queryNorm
             0.5553577 = fieldWeight in 616, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.9238153 = idf(docFreq=322, maxDocs=44421)
               0.09375 = fieldNorm(doc=616)
         0.08006007 = weight(abstract_txt:feedback in 616) [ClassicSimilarity], result of:
           0.08006007 = score(doc=616,freq=1.0), product of:
             0.14378081 = queryWeight, product of:
               1.0586898 = boost
               5.9394164 = idf(docFreq=317, maxDocs=44421)
               0.022865906 = queryNorm
             0.5568203 = fieldWeight in 616, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.9394164 = idf(docFreq=317, maxDocs=44421)
               0.09375 = fieldNorm(doc=616)
         0.084279835 = weight(abstract_txt:matching in 616) [ClassicSimilarity], result of:
           0.084279835 = score(doc=616,freq=1.0), product of:
             0.14878964 = queryWeight, product of:
               1.0769725 = boost
               6.0419855 = idf(docFreq=286, maxDocs=44421)
               0.022865906 = queryNorm
             0.5664362 = fieldWeight in 616, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.0419855 = idf(docFreq=286, maxDocs=44421)
               0.09375 = fieldNorm(doc=616)
         0.0927352 = weight(abstract_txt:pattern in 616) [ClassicSimilarity], result of:
           0.0927352 = score(doc=616,freq=1.0), product of:
             0.15858181 = queryWeight, product of:
               1.1118468 = boost
               6.2376356 = idf(docFreq=235, maxDocs=44421)
               0.022865906 = queryNorm
             0.5847783 = fieldWeight in 616, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.2376356 = idf(docFreq=235, maxDocs=44421)
               0.09375 = fieldNorm(doc=616)
         0.032169566 = weight(abstract_txt:results in 616) [ClassicSimilarity], result of:
           0.032169566 = score(doc=616,freq=1.0), product of:
             0.098642424 = queryWeight, product of:
               1.240124 = boost
               3.4786456 = idf(docFreq=3724, maxDocs=44421)
               0.022865906 = queryNorm
             0.32612303 = fieldWeight in 616, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4786456 = idf(docFreq=3724, maxDocs=44421)
               0.09375 = fieldNorm(doc=616)
         0.12961204 = weight(abstract_txt:weighting in 616) [ClassicSimilarity], result of:
           0.12961204 = score(doc=616,freq=1.0), product of:
             0.19823812 = queryWeight, product of:
               1.2431165 = boost
               6.9740796 = idf(docFreq=112, maxDocs=44421)
               0.022865906 = queryNorm
             0.65382 = fieldWeight in 616, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.9740796 = idf(docFreq=112, maxDocs=44421)
               0.09375 = fieldNorm(doc=616)
         0.03745957 = weight(abstract_txt:different in 616) [ClassicSimilarity], result of:
           0.03745957 = score(doc=616,freq=1.0), product of:
             0.10917976 = queryWeight, product of:
               1.304681 = boost
               3.6597328 = idf(docFreq=3107, maxDocs=44421)
               0.022865906 = queryNorm
             0.34309995 = fieldWeight in 616, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6597328 = idf(docFreq=3107, maxDocs=44421)
               0.09375 = fieldNorm(doc=616)
         0.094747625 = weight(abstract_txt:large in 616) [ClassicSimilarity], result of:
           0.094747625 = score(doc=616,freq=2.0), product of:
             0.16086781 = queryWeight, product of:
               1.5836815 = boost
               4.4423513 = idf(docFreq=1420, maxDocs=44421)
               0.022865906 = queryNorm
             0.5889782 = fieldWeight in 616, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.4423513 = idf(docFreq=1420, maxDocs=44421)
               0.09375 = fieldNorm(doc=616)
         0.06811576 = weight(abstract_txt:retrieval in 616) [ClassicSimilarity], result of:
           0.06811576 = score(doc=616,freq=2.0), product of:
             0.14778118 = queryWeight, product of:
               1.8590388 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.022865906 = queryNorm
             0.46092314 = fieldWeight in 616, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.09375 = fieldNorm(doc=616)
         0.18613596 = weight(abstract_txt:conference in 616) [ClassicSimilarity], result of:
           0.18613596 = score(doc=616,freq=2.0), product of:
             0.25233477 = queryWeight, product of:
               1.9834526 = boost
               5.5637407 = idf(docFreq=462, maxDocs=44421)
               0.022865906 = queryNorm
             0.7376548 = fieldWeight in 616, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.5637407 = idf(docFreq=462, maxDocs=44421)
               0.09375 = fieldNorm(doc=616)
         0.23028532 = weight(abstract_txt:trec in 616) [ClassicSimilarity], result of:
           0.23028532 = score(doc=616,freq=1.0), product of:
             0.36639068 = queryWeight, product of:
               2.3900416 = boost
               6.704255 = idf(docFreq=147, maxDocs=44421)
               0.022865906 = queryNorm
             0.62852395 = fieldWeight in 616, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.704255 = idf(docFreq=147, maxDocs=44421)
               0.09375 = fieldNorm(doc=616)
         0.18482894 = weight(abstract_txt:techniques in 616) [ClassicSimilarity], result of:
           0.18482894 = score(doc=616,freq=3.0), product of:
             0.25115216 = queryWeight, product of:
               2.4235241 = boost
               4.5321174 = idf(docFreq=1298, maxDocs=44421)
               0.022865906 = queryNorm
             0.7359241 = fieldWeight in 616, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.5321174 = idf(docFreq=1298, maxDocs=44421)
               0.09375 = fieldNorm(doc=616)
       0.56 = coord(14/25)
   

4. Harman, D.: ¬The Text REtrieval Conferences (TRECs) : providing a test-bed for information retrieval systems (1998) 0.65

   0.6528389 = sum of:
     0.6528389 = product of:
       1.4837247 = sum of:
         0.10894897 = weight(abstract_txt:advanced in 2314) [ClassicSimilarity], result of:
           0.10894897 = score(doc=2314,freq=2.0), product of:
             0.14014007 = queryWeight, product of:
               1.0452001 = boost
               5.863737 = idf(docFreq=342, maxDocs=44421)
               0.022865906 = queryNorm
             0.7774291 = fieldWeight in 2314, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.863737 = idf(docFreq=342, maxDocs=44421)
               0.09375 = fieldNorm(doc=2314)
         0.08006007 = weight(abstract_txt:feedback in 2314) [ClassicSimilarity], result of:
           0.08006007 = score(doc=2314,freq=1.0), product of:
             0.14378081 = queryWeight, product of:
               1.0586898 = boost
               5.9394164 = idf(docFreq=317, maxDocs=44421)
               0.022865906 = queryNorm
             0.5568203 = fieldWeight in 2314, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.9394164 = idf(docFreq=317, maxDocs=44421)
               0.09375 = fieldNorm(doc=2314)
         0.084279835 = weight(abstract_txt:matching in 2314) [ClassicSimilarity], result of:
           0.084279835 = score(doc=2314,freq=1.0), product of:
             0.14878964 = queryWeight, product of:
               1.0769725 = boost
               6.0419855 = idf(docFreq=286, maxDocs=44421)
               0.022865906 = queryNorm
             0.5664362 = fieldWeight in 2314, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.0419855 = idf(docFreq=286, maxDocs=44421)
               0.09375 = fieldNorm(doc=2314)
         0.0927352 = weight(abstract_txt:pattern in 2314) [ClassicSimilarity], result of:
           0.0927352 = score(doc=2314,freq=1.0), product of:
             0.15858181 = queryWeight, product of:
               1.1118468 = boost
               6.2376356 = idf(docFreq=235, maxDocs=44421)
               0.022865906 = queryNorm
             0.5847783 = fieldWeight in 2314, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.2376356 = idf(docFreq=235, maxDocs=44421)
               0.09375 = fieldNorm(doc=2314)
         0.032169566 = weight(abstract_txt:results in 2314) [ClassicSimilarity], result of:
           0.032169566 = score(doc=2314,freq=1.0), product of:
             0.098642424 = queryWeight, product of:
               1.240124 = boost
               3.4786456 = idf(docFreq=3724, maxDocs=44421)
               0.022865906 = queryNorm
             0.32612303 = fieldWeight in 2314, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4786456 = idf(docFreq=3724, maxDocs=44421)
               0.09375 = fieldNorm(doc=2314)
         0.12961204 = weight(abstract_txt:weighting in 2314) [ClassicSimilarity], result of:
           0.12961204 = score(doc=2314,freq=1.0), product of:
             0.19823812 = queryWeight, product of:
               1.2431165 = boost
               6.9740796 = idf(docFreq=112, maxDocs=44421)
               0.022865906 = queryNorm
             0.65382 = fieldWeight in 2314, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.9740796 = idf(docFreq=112, maxDocs=44421)
               0.09375 = fieldNorm(doc=2314)
         0.094747625 = weight(abstract_txt:large in 2314) [ClassicSimilarity], result of:
           0.094747625 = score(doc=2314,freq=2.0), product of:
             0.16086781 = queryWeight, product of:
               1.5836815 = boost
               4.4423513 = idf(docFreq=1420, maxDocs=44421)
               0.022865906 = queryNorm
             0.5889782 = fieldWeight in 2314, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.4423513 = idf(docFreq=1420, maxDocs=44421)
               0.09375 = fieldNorm(doc=2314)
         0.08342443 = weight(abstract_txt:retrieval in 2314) [ClassicSimilarity], result of:
           0.08342443 = score(doc=2314,freq=3.0), product of:
             0.14778118 = queryWeight, product of:
               1.8590388 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.022865906 = queryNorm
             0.5645132 = fieldWeight in 2314, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.09375 = fieldNorm(doc=2314)
         0.22796905 = weight(abstract_txt:conference in 2314) [ClassicSimilarity], result of:
           0.22796905 = score(doc=2314,freq=3.0), product of:
             0.25233477 = queryWeight, product of:
               1.9834526 = boost
               5.5637407 = idf(docFreq=462, maxDocs=44421)
               0.022865906 = queryNorm
             0.9034389 = fieldWeight in 2314, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.5637407 = idf(docFreq=462, maxDocs=44421)
               0.09375 = fieldNorm(doc=2314)
         0.39886582 = weight(abstract_txt:trec in 2314) [ClassicSimilarity], result of:
           0.39886582 = score(doc=2314,freq=3.0), product of:
             0.36639068 = queryWeight, product of:
               2.3900416 = boost
               6.704255 = idf(docFreq=147, maxDocs=44421)
               0.022865906 = queryNorm
             1.0886353 = fieldWeight in 2314, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.704255 = idf(docFreq=147, maxDocs=44421)
               0.09375 = fieldNorm(doc=2314)
         0.1509122 = weight(abstract_txt:techniques in 2314) [ClassicSimilarity], result of:
           0.1509122 = score(doc=2314,freq=2.0), product of:
             0.25115216 = queryWeight, product of:
               2.4235241 = boost
               4.5321174 = idf(docFreq=1298, maxDocs=44421)
               0.022865906 = queryNorm
             0.60087955 = fieldWeight in 2314, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.5321174 = idf(docFreq=1298, maxDocs=44421)
               0.09375 = fieldNorm(doc=2314)
       0.44 = coord(11/25)
   

5. ¬The Eleventh Text Retrieval Conference, TREC 2002 (2003) 0.63

   0.6254509 = sum of:
     0.6254509 = product of:
       1.4214793 = sum of:
         0.07871484 = weight(abstract_txt:compare in 5049) [ClassicSimilarity], result of:
           0.07871484 = score(doc=5049,freq=1.0), product of:
             0.12828134 = queryWeight, product of:
               5.6101575 = idf(docFreq=441, maxDocs=44421)
               0.022865906 = queryNorm
             0.613611 = fieldWeight in 5049, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6101575 = idf(docFreq=441, maxDocs=44421)
               0.109375 = fieldNorm(doc=5049)
         0.09266931 = weight(abstract_txt:held in 5049) [ClassicSimilarity], result of:
           0.09266931 = score(doc=5049,freq=1.0), product of:
             0.14302646 = queryWeight, product of:
               1.0559089 = boost
               5.9238153 = idf(docFreq=322, maxDocs=44421)
               0.022865906 = queryNorm
             0.6479173 = fieldWeight in 5049, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.9238153 = idf(docFreq=322, maxDocs=44421)
               0.109375 = fieldNorm(doc=5049)
         0.12755129 = weight(abstract_txt:procedure in 5049) [ClassicSimilarity], result of:
           0.12755129 = score(doc=5049,freq=1.0), product of:
             0.17697652 = queryWeight, product of:
               1.1745623 = boost
               6.58948 = idf(docFreq=165, maxDocs=44421)
               0.022865906 = queryNorm
             0.72072434 = fieldWeight in 5049, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.58948 = idf(docFreq=165, maxDocs=44421)
               0.109375 = fieldNorm(doc=5049)
         0.03753116 = weight(abstract_txt:results in 5049) [ClassicSimilarity], result of:
           0.03753116 = score(doc=5049,freq=1.0), product of:
             0.098642424 = queryWeight, product of:
               1.240124 = boost
               3.4786456 = idf(docFreq=3724, maxDocs=44421)
               0.022865906 = queryNorm
             0.38047686 = fieldWeight in 5049, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4786456 = idf(docFreq=3724, maxDocs=44421)
               0.109375 = fieldNorm(doc=5049)
         0.04370283 = weight(abstract_txt:different in 5049) [ClassicSimilarity], result of:
           0.04370283 = score(doc=5049,freq=1.0), product of:
             0.10917976 = queryWeight, product of:
               1.304681 = boost
               3.6597328 = idf(docFreq=3107, maxDocs=44421)
               0.022865906 = queryNorm
             0.40028328 = fieldWeight in 5049, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6597328 = idf(docFreq=3107, maxDocs=44421)
               0.109375 = fieldNorm(doc=5049)
         0.2409815 = weight(abstract_txt:maryland in 5049) [ClassicSimilarity], result of:
           0.2409815 = score(doc=5049,freq=1.0), product of:
             0.27046737 = queryWeight, product of:
               1.4520304 = boost
               8.146119 = idf(docFreq=34, maxDocs=44421)
               0.022865906 = queryNorm
             0.8909818 = fieldWeight in 5049, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.146119 = idf(docFreq=34, maxDocs=44421)
               0.109375 = fieldNorm(doc=5049)
         0.1105389 = weight(abstract_txt:large in 5049) [ClassicSimilarity], result of:
           0.1105389 = score(doc=5049,freq=2.0), product of:
             0.16086781 = queryWeight, product of:
               1.5836815 = boost
               4.4423513 = idf(docFreq=1420, maxDocs=44421)
               0.022865906 = queryNorm
             0.6871412 = fieldWeight in 5049, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.4423513 = idf(docFreq=1420, maxDocs=44421)
               0.109375 = fieldNorm(doc=5049)
         0.0794684 = weight(abstract_txt:retrieval in 5049) [ClassicSimilarity], result of:
           0.0794684 = score(doc=5049,freq=2.0), product of:
             0.14778118 = queryWeight, product of:
               1.8590388 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.022865906 = queryNorm
             0.5377437 = fieldWeight in 5049, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.109375 = fieldNorm(doc=5049)
         0.21715862 = weight(abstract_txt:conference in 5049) [ClassicSimilarity], result of:
           0.21715862 = score(doc=5049,freq=2.0), product of:
             0.25233477 = queryWeight, product of:
               1.9834526 = boost
               5.5637407 = idf(docFreq=462, maxDocs=44421)
               0.022865906 = queryNorm
             0.86059725 = fieldWeight in 5049, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.5637407 = idf(docFreq=462, maxDocs=44421)
               0.109375 = fieldNorm(doc=5049)
         0.26866618 = weight(abstract_txt:trec in 5049) [ClassicSimilarity], result of:
           0.26866618 = score(doc=5049,freq=1.0), product of:
             0.36639068 = queryWeight, product of:
               2.3900416 = boost
               6.704255 = idf(docFreq=147, maxDocs=44421)
               0.022865906 = queryNorm
             0.7332779 = fieldWeight in 5049, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.704255 = idf(docFreq=147, maxDocs=44421)
               0.109375 = fieldNorm(doc=5049)
         0.12449621 = weight(abstract_txt:techniques in 5049) [ClassicSimilarity], result of:
           0.12449621 = score(doc=5049,freq=1.0), product of:
             0.25115216 = queryWeight, product of:
               2.4235241 = boost
               4.5321174 = idf(docFreq=1298, maxDocs=44421)
               0.022865906 = queryNorm
             0.49570033 = fieldWeight in 5049, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.5321174 = idf(docFreq=1298, maxDocs=44421)
               0.109375 = fieldNorm(doc=5049)
       0.44 = coord(11/25)