Document (#33487)

Author

Grossman, D.A.
Frieder, O.

Title

Information retrieval : algorithms and heuristics

Issue

2nd ed.

Imprint

Berlin : Springer Netherland

Year

2004

Pages

XX, 332 S

Isbn

1-402-03003-7

Series

Kluwer international series on information retrieval ; 15

Abstract

Interested in how an efficient search engine works? Want to know what algorithms are used to rank resulting documents in response to user requests? The authors answer these and other key information on retrieval design and implementation questions is provided. This book is not yet another high level text. Instead, algorithms are thoroughly described, making this book ideally suited for both computer science students and practitioners who work on search-related applications. As stated in the foreword, this book provides a current, broad, and detailed overview of the field and is the only one that does so. Examples are used throughout to illustrate the algorithms. The authors explain how a query is ranked against a document collection using either a single or a combination of retrieval strategies, and how an assortment of utilities are integrated into the query processing scheme to improve these rankings. Methods for building and compressing text indexes, querying and retrieving documents in multiple languages, and using parallel or distributed processing to expedite the search are likewise described. This edition is a major expansion of the one published in 1998. Neuaufl. 2005: Besides updating the entire book with current techniques, it includes new sections on language models, cross-language information retrieval, peer-to-peer processing, XML search, mediators, and duplicate document detection.

LCSH

Information storage and retrieval systems

RSWK

Algorithmus / Heuristik / Information Retrieval
Information Retrieval / Theoretische Informatik (HBZ)
Information Retrieval (BVB)

BK

06.74 / Informationssysteme
54.62 / Datenstrukturen

DDC

005.74

GHBS

TWX (SI)
BCA (FH K)

RVK

ST 270 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme
ST 271 (BVB)

Similar documents (author)

1. Grossman, D.A.; Frieder, O.: Information retrieval : algorithms and heuristics (1998) 6.39

   6.387083 = sum of:
     6.387083 = sum of:
       3.083463 = weight(author_txt:frieder in 3182) [ClassicSimilarity], result of:
         3.083463 = score(doc=3182,freq=1.0), product of:
           0.6906719 = queryWeight, product of:
             8.928879 = idf(docFreq=15, maxDocs=44421)
             0.07735259 = queryNorm
           4.4644394 = fieldWeight in 3182, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.928879 = idf(docFreq=15, maxDocs=44421)
             0.5 = fieldNorm(doc=3182)
       3.3036203 = weight(author_txt:grossman in 3182) [ClassicSimilarity], result of:
         3.3036203 = score(doc=3182,freq=1.0), product of:
           0.7231683 = queryWeight, product of:
             1.0232549 = boost
             9.1365185 = idf(docFreq=12, maxDocs=44421)
             0.07735259 = queryNorm
           4.5682592 = fieldWeight in 3182, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             9.1365185 = idf(docFreq=12, maxDocs=44421)
             0.5 = fieldNorm(doc=3182)
   

2. Aljlayl, M.; Frieder, O.; Grossman, D.: On bidirectional English-Arabic search (2002) 4.79

   4.790313 = sum of:
     4.790313 = sum of:
       2.3125973 = weight(author_txt:frieder in 227) [ClassicSimilarity], result of:
         2.3125973 = score(doc=227,freq=1.0), product of:
           0.6906719 = queryWeight, product of:
             8.928879 = idf(docFreq=15, maxDocs=44421)
             0.07735259 = queryNorm
           3.3483295 = fieldWeight in 227, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.928879 = idf(docFreq=15, maxDocs=44421)
             0.375 = fieldNorm(doc=227)
       2.4777153 = weight(author_txt:grossman in 227) [ClassicSimilarity], result of:
         2.4777153 = score(doc=227,freq=1.0), product of:
           0.7231683 = queryWeight, product of:
             1.0232549 = boost
             9.1365185 = idf(docFreq=12, maxDocs=44421)
             0.07735259 = queryNorm
           3.4261944 = fieldWeight in 227, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             9.1365185 = idf(docFreq=12, maxDocs=44421)
             0.375 = fieldNorm(doc=227)
   

3. Grossman, D.A.; Holmes, D.O.; Frieder, O.; Nguyen, M.D.; Kingsbury, C.E.: Improving accuracy and run-time performance for TREC-4 (1996) 3.99

   3.9919271 = sum of:
     3.9919271 = sum of:
       1.9271643 = weight(author_txt:frieder in 600) [ClassicSimilarity], result of:
         1.9271643 = score(doc=600,freq=1.0), product of:
           0.6906719 = queryWeight, product of:
             8.928879 = idf(docFreq=15, maxDocs=44421)
             0.07735259 = queryNorm
           2.7902746 = fieldWeight in 600, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.928879 = idf(docFreq=15, maxDocs=44421)
             0.3125 = fieldNorm(doc=600)
       2.0647628 = weight(author_txt:grossman in 600) [ClassicSimilarity], result of:
         2.0647628 = score(doc=600,freq=1.0), product of:
           0.7231683 = queryWeight, product of:
             1.0232549 = boost
             9.1365185 = idf(docFreq=12, maxDocs=44421)
             0.07735259 = queryNorm
           2.8551621 = fieldWeight in 600, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             9.1365185 = idf(docFreq=12, maxDocs=44421)
             0.3125 = fieldNorm(doc=600)
   

4. Lundquist, C.; Frieder, O.; Holmes, D.O.; Grossman, D.: ¬A parallel relational database management system approach to relevance feedback in information retrieval (1999) 3.99

   3.9919271 = sum of:
     3.9919271 = sum of:
       1.9271643 = weight(author_txt:frieder in 5303) [ClassicSimilarity], result of:
         1.9271643 = score(doc=5303,freq=1.0), product of:
           0.6906719 = queryWeight, product of:
             8.928879 = idf(docFreq=15, maxDocs=44421)
             0.07735259 = queryNorm
           2.7902746 = fieldWeight in 5303, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.928879 = idf(docFreq=15, maxDocs=44421)
             0.3125 = fieldNorm(doc=5303)
       2.0647628 = weight(author_txt:grossman in 5303) [ClassicSimilarity], result of:
         2.0647628 = score(doc=5303,freq=1.0), product of:
           0.7231683 = queryWeight, product of:
             1.0232549 = boost
             9.1365185 = idf(docFreq=12, maxDocs=44421)
             0.07735259 = queryNorm
           2.8551621 = fieldWeight in 5303, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             9.1365185 = idf(docFreq=12, maxDocs=44421)
             0.3125 = fieldNorm(doc=5303)
   

5. Aqeel, S.U.; Beitzel, S.M.; Jensen, E.C.; Grossman, D.; Frieder, O.: On the development of name search techniques for Arabic (2006) 3.99

   3.9919271 = sum of:
     3.9919271 = sum of:
       1.9271643 = weight(author_txt:frieder in 289) [ClassicSimilarity], result of:
         1.9271643 = score(doc=289,freq=1.0), product of:
           0.6906719 = queryWeight, product of:
             8.928879 = idf(docFreq=15, maxDocs=44421)
             0.07735259 = queryNorm
           2.7902746 = fieldWeight in 289, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.928879 = idf(docFreq=15, maxDocs=44421)
             0.3125 = fieldNorm(doc=289)
       2.0647628 = weight(author_txt:grossman in 289) [ClassicSimilarity], result of:
         2.0647628 = score(doc=289,freq=1.0), product of:
           0.7231683 = queryWeight, product of:
             1.0232549 = boost
             9.1365185 = idf(docFreq=12, maxDocs=44421)
             0.07735259 = queryNorm
           2.8551621 = fieldWeight in 289, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             9.1365185 = idf(docFreq=12, maxDocs=44421)
             0.3125 = fieldNorm(doc=289)
   

Similar documents (content)

1. Information retrieval : data structures and algorithms (1992) 0.36

   0.3633974 = sum of:
     0.3633974 = product of:
       1.1356169 = sum of:
         0.087454654 = weight(abstract_txt:authors in 4495) [ClassicSimilarity], result of:
           0.087454654 = score(doc=4495,freq=1.0), product of:
             0.12048968 = queryWeight, product of:
               1.1558465 = boost
               4.6452923 = idf(docFreq=1159, maxDocs=44421)
               0.022440713 = queryNorm
             0.7258269 = fieldWeight in 4495, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.6452923 = idf(docFreq=1159, maxDocs=44421)
               0.15625 = fieldNorm(doc=4495)
         0.09376831 = weight(abstract_txt:query in 4495) [ClassicSimilarity], result of:
           0.09376831 = score(doc=4495,freq=1.0), product of:
             0.1262211 = queryWeight, product of:
               1.1830176 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.022440713 = queryNorm
             0.74288934 = fieldWeight in 4495, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.15625 = fieldNorm(doc=4495)
         0.08517116 = weight(abstract_txt:search in 4495) [ClassicSimilarity], result of:
           0.08517116 = score(doc=4495,freq=1.0), product of:
             0.14915334 = queryWeight, product of:
               1.8186817 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.022440713 = queryNorm
             0.5710309 = fieldWeight in 4495, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.15625 = fieldNorm(doc=4495)
         0.15633035 = weight(abstract_txt:processing in 4495) [ClassicSimilarity], result of:
           0.15633035 = score(doc=4495,freq=1.0), product of:
             0.20315172 = queryWeight, product of:
               1.8381506 = boost
               4.9249606 = idf(docFreq=876, maxDocs=44421)
               0.022440713 = queryNorm
             0.7695251 = fieldWeight in 4495, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.9249606 = idf(docFreq=876, maxDocs=44421)
               0.15625 = fieldNorm(doc=4495)
         0.043218065 = weight(abstract_txt:information in 4495) [ClassicSimilarity], result of:
           0.043218065 = score(doc=4495,freq=1.0), product of:
             0.114347704 = queryWeight, product of:
               2.1065557 = boost
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.022440713 = queryNorm
             0.37795305 = fieldWeight in 4495, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.15625 = fieldNorm(doc=4495)
         0.1998871 = weight(abstract_txt:book in 4495) [ClassicSimilarity], result of:
           0.1998871 = score(doc=4495,freq=1.0), product of:
             0.26340726 = queryWeight, product of:
               2.4168744 = boost
               4.8566523 = idf(docFreq=938, maxDocs=44421)
               0.022440713 = queryNorm
             0.7588519 = fieldWeight in 4495, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.8566523 = idf(docFreq=938, maxDocs=44421)
               0.15625 = fieldNorm(doc=4495)
         0.32315463 = weight(abstract_txt:algorithms in 4495) [ClassicSimilarity], result of:
           0.32315463 = score(doc=4495,freq=1.0), product of:
             0.36283693 = queryWeight, product of:
               2.836586 = boost
               5.7000527 = idf(docFreq=403, maxDocs=44421)
               0.022440713 = queryNorm
             0.8906332 = fieldWeight in 4495, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7000527 = idf(docFreq=403, maxDocs=44421)
               0.15625 = fieldNorm(doc=4495)
         0.14663258 = weight(abstract_txt:retrieval in 4495) [ClassicSimilarity], result of:
           0.14663258 = score(doc=4495,freq=1.0), product of:
             0.2699406 = queryWeight, product of:
               3.4601054 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.022440713 = queryNorm
             0.5432031 = fieldWeight in 4495, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.15625 = fieldNorm(doc=4495)
       0.32 = coord(8/25)
   

2. Lalmas, M.: XML retrieval (2009) 0.31

   0.3098559 = sum of:
     0.3098559 = product of:
       0.704218 = sum of:
         0.023026733 = weight(abstract_txt:text in 998) [ClassicSimilarity], result of:
           0.023026733 = score(doc=998,freq=1.0), product of:
             0.09117507 = queryWeight, product of:
               1.0054564 = boost
               4.040882 = idf(docFreq=2122, maxDocs=44421)
               0.022440713 = queryNorm
             0.25255513 = fieldWeight in 998, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.040882 = idf(docFreq=2122, maxDocs=44421)
               0.0625 = fieldNorm(doc=998)
         0.06472835 = weight(abstract_txt:documents in 998) [ClassicSimilarity], result of:
           0.06472835 = score(doc=998,freq=7.0), product of:
             0.09493323 = queryWeight, product of:
               1.0259693 = boost
               4.123322 = idf(docFreq=1954, maxDocs=44421)
               0.022440713 = queryNorm
             0.6818303 = fieldWeight in 998, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               4.123322 = idf(docFreq=1954, maxDocs=44421)
               0.0625 = fieldNorm(doc=998)
         0.043861255 = weight(abstract_txt:language in 998) [ClassicSimilarity], result of:
           0.043861255 = score(doc=998,freq=3.0), product of:
             0.09714077 = queryWeight, product of:
               1.0378294 = boost
               4.1709876 = idf(docFreq=1863, maxDocs=44421)
               0.022440713 = queryNorm
             0.45152265 = fieldWeight in 998, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.1709876 = idf(docFreq=1863, maxDocs=44421)
               0.0625 = fieldNorm(doc=998)
         0.05526693 = weight(abstract_txt:document in 998) [ClassicSimilarity], result of:
           0.05526693 = score(doc=998,freq=4.0), product of:
             0.10296228 = queryWeight, product of:
               1.0684748 = boost
               4.29415 = idf(docFreq=1647, maxDocs=44421)
               0.022440713 = queryNorm
             0.53676873 = fieldWeight in 998, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.29415 = idf(docFreq=1647, maxDocs=44421)
               0.0625 = fieldNorm(doc=998)
         0.053043365 = weight(abstract_txt:query in 998) [ClassicSimilarity], result of:
           0.053043365 = score(doc=998,freq=2.0), product of:
             0.1262211 = queryWeight, product of:
               1.1830176 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.022440713 = queryNorm
             0.42024165 = fieldWeight in 998, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.0625 = fieldNorm(doc=998)
         0.01684257 = weight(abstract_txt:this in 998) [ClassicSimilarity], result of:
           0.01684257 = score(doc=998,freq=3.0), product of:
             0.06465911 = queryWeight, product of:
               1.1974436 = boost
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.022440713 = queryNorm
             0.26048255 = fieldWeight in 998, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.0625 = fieldNorm(doc=998)
         0.060823787 = weight(abstract_txt:described in 998) [ClassicSimilarity], result of:
           0.060823787 = score(doc=998,freq=2.0), product of:
             0.13828027 = queryWeight, product of:
               1.2382414 = boost
               4.9764338 = idf(docFreq=832, maxDocs=44421)
               0.022440713 = queryNorm
             0.43985873 = fieldWeight in 998, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.9764338 = idf(docFreq=832, maxDocs=44421)
               0.0625 = fieldNorm(doc=998)
         0.017287226 = weight(abstract_txt:information in 998) [ClassicSimilarity], result of:
           0.017287226 = score(doc=998,freq=1.0), product of:
             0.114347704 = queryWeight, product of:
               2.1065557 = boost
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.022440713 = queryNorm
             0.15118122 = fieldWeight in 998, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.0625 = fieldNorm(doc=998)
         0.13848585 = weight(abstract_txt:book in 998) [ClassicSimilarity], result of:
           0.13848585 = score(doc=998,freq=3.0), product of:
             0.26340726 = queryWeight, product of:
               2.4168744 = boost
               4.8566523 = idf(docFreq=938, maxDocs=44421)
               0.022440713 = queryNorm
             0.525748 = fieldWeight in 998, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.8566523 = idf(docFreq=938, maxDocs=44421)
               0.0625 = fieldNorm(doc=998)
         0.12926185 = weight(abstract_txt:algorithms in 998) [ClassicSimilarity], result of:
           0.12926185 = score(doc=998,freq=1.0), product of:
             0.36283693 = queryWeight, product of:
               2.836586 = boost
               5.7000527 = idf(docFreq=403, maxDocs=44421)
               0.022440713 = queryNorm
             0.3562533 = fieldWeight in 998, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7000527 = idf(docFreq=403, maxDocs=44421)
               0.0625 = fieldNorm(doc=998)
         0.10159003 = weight(abstract_txt:retrieval in 998) [ClassicSimilarity], result of:
           0.10159003 = score(doc=998,freq=3.0), product of:
             0.2699406 = queryWeight, product of:
               3.4601054 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.022440713 = queryNorm
             0.37634215 = fieldWeight in 998, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.0625 = fieldNorm(doc=998)
       0.44 = coord(11/25)
   

3. Chandrasekar, R.; Bangalore, S.: Glean : using syntactic information in document filtering (2002) 0.27

   0.26797634 = sum of:
     0.26797634 = product of:
       0.60903716 = sum of:
         0.023026733 = weight(abstract_txt:text in 5257) [ClassicSimilarity], result of:
           0.023026733 = score(doc=5257,freq=1.0), product of:
             0.09117507 = queryWeight, product of:
               1.0054564 = boost
               4.040882 = idf(docFreq=2122, maxDocs=44421)
               0.022440713 = queryNorm
             0.25255513 = fieldWeight in 5257, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.040882 = idf(docFreq=2122, maxDocs=44421)
               0.0625 = fieldNorm(doc=5257)
         0.034598757 = weight(abstract_txt:documents in 5257) [ClassicSimilarity], result of:
           0.034598757 = score(doc=5257,freq=2.0), product of:
             0.09493323 = queryWeight, product of:
               1.0259693 = boost
               4.123322 = idf(docFreq=1954, maxDocs=44421)
               0.022440713 = queryNorm
             0.3644536 = fieldWeight in 5257, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.123322 = idf(docFreq=1954, maxDocs=44421)
               0.0625 = fieldNorm(doc=5257)
         0.025323309 = weight(abstract_txt:language in 5257) [ClassicSimilarity], result of:
           0.025323309 = score(doc=5257,freq=1.0), product of:
             0.09714077 = queryWeight, product of:
               1.0378294 = boost
               4.1709876 = idf(docFreq=1863, maxDocs=44421)
               0.022440713 = queryNorm
             0.26068673 = fieldWeight in 5257, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.1709876 = idf(docFreq=1863, maxDocs=44421)
               0.0625 = fieldNorm(doc=5257)
         0.15752974 = weight(abstract_txt:likewise in 5257) [ClassicSimilarity], result of:
           0.15752974 = score(doc=5257,freq=2.0), product of:
             0.20698693 = queryWeight, product of:
               1.0712274 = boost
               8.610425 = idf(docFreq=21, maxDocs=44421)
               0.022440713 = queryNorm
             0.76106125 = fieldWeight in 5257, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               8.610425 = idf(docFreq=21, maxDocs=44421)
               0.0625 = fieldNorm(doc=5257)
         0.06496459 = weight(abstract_txt:query in 5257) [ClassicSimilarity], result of:
           0.06496459 = score(doc=5257,freq=3.0), product of:
             0.1262211 = queryWeight, product of:
               1.1830176 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.022440713 = queryNorm
             0.51468885 = fieldWeight in 5257, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.0625 = fieldNorm(doc=5257)
         0.013751901 = weight(abstract_txt:this in 5257) [ClassicSimilarity], result of:
           0.013751901 = score(doc=5257,freq=2.0), product of:
             0.06465911 = queryWeight, product of:
               1.1974436 = boost
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.022440713 = queryNorm
             0.21268311 = fieldWeight in 5257, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.0625 = fieldNorm(doc=5257)
         0.043008912 = weight(abstract_txt:described in 5257) [ClassicSimilarity], result of:
           0.043008912 = score(doc=5257,freq=1.0), product of:
             0.13828027 = queryWeight, product of:
               1.2382414 = boost
               4.9764338 = idf(docFreq=832, maxDocs=44421)
               0.022440713 = queryNorm
             0.3110271 = fieldWeight in 5257, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.9764338 = idf(docFreq=832, maxDocs=44421)
               0.0625 = fieldNorm(doc=5257)
         0.059008315 = weight(abstract_txt:search in 5257) [ClassicSimilarity], result of:
           0.059008315 = score(doc=5257,freq=3.0), product of:
             0.14915334 = queryWeight, product of:
               1.8186817 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.022440713 = queryNorm
             0.39562184 = fieldWeight in 5257, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.0625 = fieldNorm(doc=5257)
         0.062532134 = weight(abstract_txt:processing in 5257) [ClassicSimilarity], result of:
           0.062532134 = score(doc=5257,freq=1.0), product of:
             0.20315172 = queryWeight, product of:
               1.8381506 = boost
               4.9249606 = idf(docFreq=876, maxDocs=44421)
               0.022440713 = queryNorm
             0.30781004 = fieldWeight in 5257, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.9249606 = idf(docFreq=876, maxDocs=44421)
               0.0625 = fieldNorm(doc=5257)
         0.042344883 = weight(abstract_txt:information in 5257) [ClassicSimilarity], result of:
           0.042344883 = score(doc=5257,freq=6.0), product of:
             0.114347704 = queryWeight, product of:
               2.1065557 = boost
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.022440713 = queryNorm
             0.37031686 = fieldWeight in 5257, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.0625 = fieldNorm(doc=5257)
         0.08294792 = weight(abstract_txt:retrieval in 5257) [ClassicSimilarity], result of:
           0.08294792 = score(doc=5257,freq=2.0), product of:
             0.2699406 = queryWeight, product of:
               3.4601054 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.022440713 = queryNorm
             0.3072821 = fieldWeight in 5257, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.0625 = fieldNorm(doc=5257)
       0.44 = coord(11/25)
   

4. Larson, R.R.: Information retrieval systems (2009) 0.25

   0.24533068 = sum of:
     0.24533068 = product of:
       0.6814741 = sum of:
         0.028783415 = weight(abstract_txt:text in 804) [ClassicSimilarity], result of:
           0.028783415 = score(doc=804,freq=1.0), product of:
             0.09117507 = queryWeight, product of:
               1.0054564 = boost
               4.040882 = idf(docFreq=2122, maxDocs=44421)
               0.022440713 = queryNorm
             0.3156939 = fieldWeight in 804, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.040882 = idf(docFreq=2122, maxDocs=44421)
               0.078125 = fieldNorm(doc=804)
         0.046884157 = weight(abstract_txt:query in 804) [ClassicSimilarity], result of:
           0.046884157 = score(doc=804,freq=1.0), product of:
             0.1262211 = queryWeight, product of:
               1.1830176 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.022440713 = queryNorm
             0.37144467 = fieldWeight in 804, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.078125 = fieldNorm(doc=804)
         0.017189875 = weight(abstract_txt:this in 804) [ClassicSimilarity], result of:
           0.017189875 = score(doc=804,freq=2.0), product of:
             0.06465911 = queryWeight, product of:
               1.1974436 = boost
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.022440713 = queryNorm
             0.26585388 = fieldWeight in 804, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.078125 = fieldNorm(doc=804)
         0.05376114 = weight(abstract_txt:described in 804) [ClassicSimilarity], result of:
           0.05376114 = score(doc=804,freq=1.0), product of:
             0.13828027 = queryWeight, product of:
               1.2382414 = boost
               4.9764338 = idf(docFreq=832, maxDocs=44421)
               0.022440713 = queryNorm
             0.38878387 = fieldWeight in 804, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.9764338 = idf(docFreq=832, maxDocs=44421)
               0.078125 = fieldNorm(doc=804)
         0.04258558 = weight(abstract_txt:search in 804) [ClassicSimilarity], result of:
           0.04258558 = score(doc=804,freq=1.0), product of:
             0.14915334 = queryWeight, product of:
               1.8186817 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.022440713 = queryNorm
             0.28551546 = fieldWeight in 804, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.078125 = fieldNorm(doc=804)
         0.07816517 = weight(abstract_txt:processing in 804) [ClassicSimilarity], result of:
           0.07816517 = score(doc=804,freq=1.0), product of:
             0.20315172 = queryWeight, product of:
               1.8381506 = boost
               4.9249606 = idf(docFreq=876, maxDocs=44421)
               0.022440713 = queryNorm
             0.38476256 = fieldWeight in 804, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.9249606 = idf(docFreq=876, maxDocs=44421)
               0.078125 = fieldNorm(doc=804)
         0.030559786 = weight(abstract_txt:information in 804) [ClassicSimilarity], result of:
           0.030559786 = score(doc=804,freq=2.0), product of:
             0.114347704 = queryWeight, product of:
               2.1065557 = boost
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.022440713 = queryNorm
             0.26725316 = fieldWeight in 804, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.078125 = fieldNorm(doc=804)
         0.2798601 = weight(abstract_txt:algorithms in 804) [ClassicSimilarity], result of:
           0.2798601 = score(doc=804,freq=3.0), product of:
             0.36283693 = queryWeight, product of:
               2.836586 = boost
               5.7000527 = idf(docFreq=403, maxDocs=44421)
               0.022440713 = queryNorm
             0.771311 = fieldWeight in 804, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.7000527 = idf(docFreq=403, maxDocs=44421)
               0.078125 = fieldNorm(doc=804)
         0.103684895 = weight(abstract_txt:retrieval in 804) [ClassicSimilarity], result of:
           0.103684895 = score(doc=804,freq=2.0), product of:
             0.2699406 = queryWeight, product of:
               3.4601054 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.022440713 = queryNorm
             0.3841026 = fieldWeight in 804, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.078125 = fieldNorm(doc=804)
       0.36 = coord(9/25)
   

5. Berry, M.W.; Browne, M.: Understanding search engines : mathematical modeling and text retrieval (1999) 0.24

   0.24337205 = sum of:
     0.24337205 = product of:
       0.67603344 = sum of:
         0.0414502 = weight(abstract_txt:document in 777) [ClassicSimilarity], result of:
           0.0414502 = score(doc=777,freq=1.0), product of:
             0.10296228 = queryWeight, product of:
               1.0684748 = boost
               4.29415 = idf(docFreq=1647, maxDocs=44421)
               0.022440713 = queryNorm
             0.40257657 = fieldWeight in 777, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.29415 = idf(docFreq=1647, maxDocs=44421)
               0.09375 = fieldNorm(doc=777)
         0.041502982 = weight(abstract_txt:current in 777) [ClassicSimilarity], result of:
           0.041502982 = score(doc=777,freq=1.0), product of:
             0.103049666 = queryWeight, product of:
               1.0689281 = boost
               4.295972 = idf(docFreq=1644, maxDocs=44421)
               0.022440713 = queryNorm
             0.40274736 = fieldWeight in 777, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.295972 = idf(docFreq=1644, maxDocs=44421)
               0.09375 = fieldNorm(doc=777)
         0.052472793 = weight(abstract_txt:authors in 777) [ClassicSimilarity], result of:
           0.052472793 = score(doc=777,freq=1.0), product of:
             0.12048968 = queryWeight, product of:
               1.1558465 = boost
               4.6452923 = idf(docFreq=1159, maxDocs=44421)
               0.022440713 = queryNorm
             0.43549615 = fieldWeight in 777, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.6452923 = idf(docFreq=1159, maxDocs=44421)
               0.09375 = fieldNorm(doc=777)
         0.014586094 = weight(abstract_txt:this in 777) [ClassicSimilarity], result of:
           0.014586094 = score(doc=777,freq=1.0), product of:
             0.06465911 = queryWeight, product of:
               1.1974436 = boost
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.022440713 = queryNorm
             0.2255845 = fieldWeight in 777, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4062347 = idf(docFreq=10885, maxDocs=44421)
               0.09375 = fieldNorm(doc=777)
         0.0511027 = weight(abstract_txt:search in 777) [ClassicSimilarity], result of:
           0.0511027 = score(doc=777,freq=1.0), product of:
             0.14915334 = queryWeight, product of:
               1.8186817 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.022440713 = queryNorm
             0.34261855 = fieldWeight in 777, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.09375 = fieldNorm(doc=777)
         0.036671743 = weight(abstract_txt:information in 777) [ClassicSimilarity], result of:
           0.036671743 = score(doc=777,freq=2.0), product of:
             0.114347704 = queryWeight, product of:
               2.1065557 = boost
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.022440713 = queryNorm
             0.3207038 = fieldWeight in 777, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.09375 = fieldNorm(doc=777)
         0.119932264 = weight(abstract_txt:book in 777) [ClassicSimilarity], result of:
           0.119932264 = score(doc=777,freq=1.0), product of:
             0.26340726 = queryWeight, product of:
               2.4168744 = boost
               4.8566523 = idf(docFreq=938, maxDocs=44421)
               0.022440713 = queryNorm
             0.45531115 = fieldWeight in 777, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.8566523 = idf(docFreq=938, maxDocs=44421)
               0.09375 = fieldNorm(doc=777)
         0.19389278 = weight(abstract_txt:algorithms in 777) [ClassicSimilarity], result of:
           0.19389278 = score(doc=777,freq=1.0), product of:
             0.36283693 = queryWeight, product of:
               2.836586 = boost
               5.7000527 = idf(docFreq=403, maxDocs=44421)
               0.022440713 = queryNorm
             0.53437996 = fieldWeight in 777, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7000527 = idf(docFreq=403, maxDocs=44421)
               0.09375 = fieldNorm(doc=777)
         0.12442187 = weight(abstract_txt:retrieval in 777) [ClassicSimilarity], result of:
           0.12442187 = score(doc=777,freq=2.0), product of:
             0.2699406 = queryWeight, product of:
               3.4601054 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.022440713 = queryNorm
             0.46092314 = fieldWeight in 777, 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=777)
       0.36 = coord(9/25)