Document (#5867)

Author

Harper, D.J.

Title

Relevance feedback in document retrieval

Imprint

Cambridge

Year

1980

Footnote

Dissertation.- Darstellung des 'Harper-Algorithmus'

Theme

Retrievalalgorithmen

Similar documents (author)

1. McAllister-Harper, D.: ¬An analysis of courses in cataloging and classification and related areas offered in sixteen graduate library schools and their relationship to present and future trends in cataloging and classification and to cognitive needs of professional academic catalogers (1993) 4.53

   4.531205 = sum of:
     4.531205 = weight(author_txt:harper in 5608) [ClassicSimilarity], result of:
       4.531205 = fieldWeight in 5608, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.06241 = idf(docFreq=13, maxDocs=44421)
         0.5 = fieldNorm(doc=5608)
   

2. McAllister-Harper, D.: Dewey Decimal Classification in the online environment : a study of libraries in North Carolina (1990) 4.53

   4.531205 = sum of:
     4.531205 = weight(author_txt:harper in 3642) [ClassicSimilarity], result of:
       4.531205 = fieldWeight in 3642, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.06241 = idf(docFreq=13, maxDocs=44421)
         0.5 = fieldNorm(doc=3642)
   

3. Hendry, D.G.; Harper, D.J.: Coordinating information-seeking on interactive displays : a study in retrieval modelling and image indexing (1995) 4.53

   4.531205 = sum of:
     4.531205 = weight(author_txt:harper in 4556) [ClassicSimilarity], result of:
       4.531205 = fieldWeight in 4556, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.06241 = idf(docFreq=13, maxDocs=44421)
         0.5 = fieldNorm(doc=4556)
   

4. Jose, J.M.; Harper, D.J.: ¬An integrated approach to image retrieval (1995) 4.53

   4.531205 = sum of:
     4.531205 = weight(author_txt:harper in 5877) [ClassicSimilarity], result of:
       4.531205 = fieldWeight in 5877, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.06241 = idf(docFreq=13, maxDocs=44421)
         0.5 = fieldNorm(doc=5877)
   

5. Hendry, D.G.; Harper, D.J.: ¬An informal information-seeking environment (1997) 4.53

   4.531205 = sum of:
     4.531205 = weight(author_txt:harper in 2476) [ClassicSimilarity], result of:
       4.531205 = fieldWeight in 2476, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.06241 = idf(docFreq=13, maxDocs=44421)
         0.5 = fieldNorm(doc=2476)
   

Similar documents (content)

1. Hui, S.C.; Lau, K.L.: ¬An application of neural networks in document retrieval (1997) 1.30

   1.2991482 = sum of:
     1.2991482 = sum of:
       0.15417364 = weight(abstract_txt:retrieval in 3287) [ClassicSimilarity], result of:
         0.15417364 = score(doc=3287,freq=2.0), product of:
           0.25086662 = queryWeight, product of:
             3.4765 = idf(docFreq=3732, maxDocs=44421)
             0.07216068 = queryNorm
           0.6145642 = fieldWeight in 3287, product of:
             1.4142135 = tf(freq=2.0), with freq of:
               2.0 = termFreq=2.0
             3.4765 = idf(docFreq=3732, maxDocs=44421)
             0.125 = fieldNorm(doc=3287)
       0.29054606 = weight(abstract_txt:document in 3287) [ClassicSimilarity], result of:
         0.29054606 = score(doc=3287,freq=2.0), product of:
           0.38274786 = queryWeight, product of:
             1.2351934 = boost
             4.29415 = idf(docFreq=1647, maxDocs=44421)
             0.07216068 = queryNorm
           0.7591056 = fieldWeight in 3287, product of:
             1.4142135 = tf(freq=2.0), with freq of:
               2.0 = termFreq=2.0
             4.29415 = idf(docFreq=1647, maxDocs=44421)
             0.125 = fieldNorm(doc=3287)
       0.31080317 = weight(abstract_txt:relevance in 3287) [ClassicSimilarity], result of:
         0.31080317 = score(doc=3287,freq=1.0), product of:
           0.5043938 = queryWeight, product of:
             1.4179583 = boost
             4.929532 = idf(docFreq=872, maxDocs=44421)
             0.07216068 = queryNorm
           0.6161915 = fieldWeight in 3287, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             4.929532 = idf(docFreq=872, maxDocs=44421)
             0.125 = fieldNorm(doc=3287)
       0.54362535 = weight(abstract_txt:feedback in 3287) [ClassicSimilarity], result of:
         0.54362535 = score(doc=3287,freq=1.0), product of:
           0.7322273 = queryWeight, product of:
             1.7084471 = boost
             5.9394164 = idf(docFreq=317, maxDocs=44421)
             0.07216068 = queryNorm
           0.74242705 = fieldWeight in 3287, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             5.9394164 = idf(docFreq=317, maxDocs=44421)
             0.125 = fieldNorm(doc=3287)
   

2. Ye, Z.; Huang, J.X.: ¬A learning to rank approach for quality-aware pseudo-relevance feedback (2016) 1.24

   1.2417495 = sum of:
     1.2417495 = sum of:
       0.07708682 = weight(abstract_txt:retrieval in 3855) [ClassicSimilarity], result of:
         0.07708682 = score(doc=3855,freq=2.0), product of:
           0.25086662 = queryWeight, product of:
             3.4765 = idf(docFreq=3732, maxDocs=44421)
             0.07216068 = queryNorm
           0.3072821 = fieldWeight in 3855, 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=3855)
       0.22969681 = weight(abstract_txt:document in 3855) [ClassicSimilarity], result of:
         0.22969681 = score(doc=3855,freq=5.0), product of:
           0.38274786 = queryWeight, product of:
             1.2351934 = boost
             4.29415 = idf(docFreq=1647, maxDocs=44421)
             0.07216068 = queryNorm
           0.6001257 = fieldWeight in 3855, product of:
             2.236068 = tf(freq=5.0), with freq of:
               5.0 = termFreq=5.0
             4.29415 = idf(docFreq=1647, maxDocs=44421)
             0.0625 = fieldNorm(doc=3855)
       0.26916343 = weight(abstract_txt:relevance in 3855) [ClassicSimilarity], result of:
         0.26916343 = score(doc=3855,freq=3.0), product of:
           0.5043938 = queryWeight, product of:
             1.4179583 = boost
             4.929532 = idf(docFreq=872, maxDocs=44421)
             0.07216068 = queryNorm
           0.53363746 = fieldWeight in 3855, product of:
             1.7320508 = tf(freq=3.0), with freq of:
               3.0 = termFreq=3.0
             4.929532 = idf(docFreq=872, maxDocs=44421)
             0.0625 = fieldNorm(doc=3855)
       0.6658024 = weight(abstract_txt:feedback in 3855) [ClassicSimilarity], result of:
         0.6658024 = score(doc=3855,freq=6.0), product of:
           0.7322273 = queryWeight, product of:
             1.7084471 = boost
             5.9394164 = idf(docFreq=317, maxDocs=44421)
             0.07216068 = queryNorm
           0.90928376 = fieldWeight in 3855, product of:
             2.4494898 = tf(freq=6.0), with freq of:
               6.0 = termFreq=6.0
             5.9394164 = idf(docFreq=317, maxDocs=44421)
             0.0625 = fieldNorm(doc=3855)
   

3. Spink, A.; Losee, R.M.: Feedback in information retrieval (1996) 1.23

   1.2259324 = sum of:
     1.2259324 = product of:
       1.6345766 = sum of:
         0.081762925 = weight(abstract_txt:retrieval in 510) [ClassicSimilarity], result of:
           0.081762925 = score(doc=510,freq=1.0), product of:
             0.25086662 = queryWeight, product of:
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.07216068 = queryNorm
             0.3259219 = fieldWeight in 510, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.09375 = fieldNorm(doc=510)
         0.32965654 = weight(abstract_txt:relevance in 510) [ClassicSimilarity], result of:
           0.32965654 = score(doc=510,freq=2.0), product of:
             0.5043938 = queryWeight, product of:
               1.4179583 = boost
               4.929532 = idf(docFreq=872, maxDocs=44421)
               0.07216068 = queryNorm
             0.65356976 = fieldWeight in 510, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.929532 = idf(docFreq=872, maxDocs=44421)
               0.09375 = fieldNorm(doc=510)
         1.223157 = weight(abstract_txt:feedback in 510) [ClassicSimilarity], result of:
           1.223157 = score(doc=510,freq=9.0), product of:
             0.7322273 = queryWeight, product of:
               1.7084471 = boost
               5.9394164 = idf(docFreq=317, maxDocs=44421)
               0.07216068 = queryNorm
             1.6704608 = fieldWeight in 510, product of:
               3.0 = tf(freq=9.0), with freq of:
                 9.0 = termFreq=9.0
               5.9394164 = idf(docFreq=317, maxDocs=44421)
               0.09375 = fieldNorm(doc=510)
       0.75 = coord(3/4)
   

4. Salton, G.; Buckley, C.: Improving retrieval performance by relevance feedback (1990) 1.23

   1.2255654 = sum of:
     1.2255654 = product of:
       1.6340872 = sum of:
         0.15417364 = weight(abstract_txt:retrieval in 5441) [ClassicSimilarity], result of:
           0.15417364 = score(doc=5441,freq=2.0), product of:
             0.25086662 = queryWeight, product of:
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.07216068 = queryNorm
             0.6145642 = fieldWeight in 5441, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.125 = fieldNorm(doc=5441)
         0.53832686 = weight(abstract_txt:relevance in 5441) [ClassicSimilarity], result of:
           0.53832686 = score(doc=5441,freq=3.0), product of:
             0.5043938 = queryWeight, product of:
               1.4179583 = boost
               4.929532 = idf(docFreq=872, maxDocs=44421)
               0.07216068 = queryNorm
             1.0672749 = fieldWeight in 5441, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.929532 = idf(docFreq=872, maxDocs=44421)
               0.125 = fieldNorm(doc=5441)
         0.94158673 = weight(abstract_txt:feedback in 5441) [ClassicSimilarity], result of:
           0.94158673 = score(doc=5441,freq=3.0), product of:
             0.7322273 = queryWeight, product of:
               1.7084471 = boost
               5.9394164 = idf(docFreq=317, maxDocs=44421)
               0.07216068 = queryNorm
             1.2859213 = fieldWeight in 5441, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.9394164 = idf(docFreq=317, maxDocs=44421)
               0.125 = fieldNorm(doc=5441)
       0.75 = coord(3/4)
   

5. Spink, A.: Study of interactive feedback during mediated information retrieval (1997) 1.21

   1.2120663 = sum of:
     1.2120663 = product of:
       1.6160884 = sum of:
         0.21803446 = weight(abstract_txt:retrieval in 1158) [ClassicSimilarity], result of:
           0.21803446 = score(doc=1158,freq=4.0), product of:
             0.25086662 = queryWeight, product of:
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.07216068 = queryNorm
             0.869125 = fieldWeight in 1158, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.125 = fieldNorm(doc=1158)
         0.31080317 = weight(abstract_txt:relevance in 1158) [ClassicSimilarity], result of:
           0.31080317 = score(doc=1158,freq=1.0), product of:
             0.5043938 = queryWeight, product of:
               1.4179583 = boost
               4.929532 = idf(docFreq=872, maxDocs=44421)
               0.07216068 = queryNorm
             0.6161915 = fieldWeight in 1158, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.929532 = idf(docFreq=872, maxDocs=44421)
               0.125 = fieldNorm(doc=1158)
         1.0872507 = weight(abstract_txt:feedback in 1158) [ClassicSimilarity], result of:
           1.0872507 = score(doc=1158,freq=4.0), product of:
             0.7322273 = queryWeight, product of:
               1.7084471 = boost
               5.9394164 = idf(docFreq=317, maxDocs=44421)
               0.07216068 = queryNorm
             1.4848541 = fieldWeight in 1158, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.9394164 = idf(docFreq=317, maxDocs=44421)
               0.125 = fieldNorm(doc=1158)
       0.75 = coord(3/4)