Search (61 results, page 2 of 4)

Walker, S.; DeVere, R.: Improving subject retrieval in online catalogues : T.2: Relevance feedback and query expansion (1990) 0.01

0.009831011 = product of:
  0.049155056 = sum of:
    0.049155056 = weight(_text_:u in 1816) [ClassicSimilarity], result of:
      0.049155056 = score(doc=1816,freq=2.0), product of:
        0.13587062 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041494254 = queryNorm
        0.3617784 = fieldWeight in 1816, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.078125 = fieldNorm(doc=1816)
  0.2 = coord(1/5)

Theme: Semantisches Umfeld in Indexierung u. Retrieval

Principles of semantic networks : explorations in the representation of knowledge (1991) 0.01

0.009831011 = product of:
  0.049155056 = sum of:
    0.049155056 = weight(_text_:u in 1677) [ClassicSimilarity], result of:
      0.049155056 = score(doc=1677,freq=2.0), product of:
        0.13587062 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041494254 = queryNorm
        0.3617784 = fieldWeight in 1677, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.078125 = fieldNorm(doc=1677)
  0.2 = coord(1/5)

Theme: Semantisches Umfeld in Indexierung u. Retrieval

Michel, D.: Taxonomy of Subject Relationships (1997) 0.01

0.009831011 = product of:
  0.049155056 = sum of:
    0.049155056 = weight(_text_:u in 5346) [ClassicSimilarity], result of:
      0.049155056 = score(doc=5346,freq=2.0), product of:
        0.13587062 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041494254 = queryNorm
        0.3617784 = fieldWeight in 5346, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.078125 = fieldNorm(doc=5346)
  0.2 = coord(1/5)

Theme: Semantisches Umfeld in Indexierung u. Retrieval

ALA / Subcommittee on Subject Relationships/Reference Structures: Final Report to the ALCTS/CCS Subject Analysis Committee (1997) 0.01
```
0.008862557 = product of:
  0.022156391 = sum of:
    0.01720427 = weight(_text_:u in 1800) [ClassicSimilarity], result of:
      0.01720427 = score(doc=1800,freq=2.0), product of:
        0.13587062 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041494254 = queryNorm
        0.12662244 = fieldWeight in 1800, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.02734375 = fieldNorm(doc=1800)
    0.004952121 = product of:
      0.009904242 = sum of:
        0.009904242 = weight(_text_:h in 1800) [ClassicSimilarity], result of:
          0.009904242 = score(doc=1800,freq=2.0), product of:
            0.10309036 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.041494254 = queryNorm
            0.096073404 = fieldWeight in 1800, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.02734375 = fieldNorm(doc=1800)
      0.5 = coord(1/2)
  0.4 = coord(2/5)
```
Content

Enthält: Appendix A: Subcommittee on Subject Relationships/Reference Structures - REPORT TO THE ALCTS/CCS SUBJECT ANALYSIS COMMITTEE - July 1996 Appendix B (part 1): Taxonomy of Subject Relationships. Compiled by Dee Michel with the assistance of Pat Kuhr - June 1996 draft (alphabetical display) (Separat in: http://web2.ala.org/ala/alctscontent/CCS/committees/subjectanalysis/subjectrelations/msrscu2.pdf) Appendix B (part 2): Taxonomy of Subject Relationships. Compiled by Dee Michel with the assistance of Pat Kuhr - June 1996 draft (hierarchical display) Appendix C: Checklist of Candidate Subject Relationships for Information Retrieval. Compiled by Dee Michel, Pat Kuhr, and Jane Greenberg; edited by Greg Wool - June 1997 Appendix D: Review of Reference Displays in Selected CD-ROM Abstracts and Indexes by Harriette Hemmasi and Steven Riel Appendix E: Analysis of Relationships in Six LC Subject Authority Records by Harriette Hemmasi and Gary Strawn Appendix F: Report of a Preliminary Survey of Subject Referencing in OPACs by Gregory Wool Appendix G: LC Subject Referencing in OPACs--Why Bother? by Gregory Wool Appendix H: Research Needs on Subject Relationships and Reference Structures in Information Access compiled by Jane Greenberg and Steven Riel with contributions from Dee Michel and others edited by Gregory Wool Appendix I: Bibliography on Subject Relationships compiled mostly by Dee Michel with additional contributions from Jane Greenberg, Steven Riel, and Gregory Wool

Theme

Semantisches Umfeld in Indexierung u. Retrieval

Robertson, S.E.: On term selection for query expansion (1990) 0.01

0.00786481 = product of:
  0.039324045 = sum of:
    0.039324045 = weight(_text_:u in 2650) [ClassicSimilarity], result of:
      0.039324045 = score(doc=2650,freq=2.0), product of:
        0.13587062 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041494254 = queryNorm
        0.28942272 = fieldWeight in 2650, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0625 = fieldNorm(doc=2650)
  0.2 = coord(1/5)

Theme: Semantisches Umfeld in Indexierung u. Retrieval

Harman, D.: Automatic indexing (1994) 0.01

0.00786481 = product of:
  0.039324045 = sum of:
    0.039324045 = weight(_text_:u in 7729) [ClassicSimilarity], result of:
      0.039324045 = score(doc=7729,freq=2.0), product of:
        0.13587062 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041494254 = queryNorm
        0.28942272 = fieldWeight in 7729, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0625 = fieldNorm(doc=7729)
  0.2 = coord(1/5)

Theme: Semantisches Umfeld in Indexierung u. Retrieval

Srinivasan, P.: Query expansion and MEDLINE (1996) 0.01

0.00786481 = product of:
  0.039324045 = sum of:
    0.039324045 = weight(_text_:u in 8453) [ClassicSimilarity], result of:
      0.039324045 = score(doc=8453,freq=2.0), product of:
        0.13587062 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041494254 = queryNorm
        0.28942272 = fieldWeight in 8453, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0625 = fieldNorm(doc=8453)
  0.2 = coord(1/5)

Theme: Semantisches Umfeld in Indexierung u. Retrieval

Efthimiadis, E.N.: Query expansion (1996) 0.01

0.00786481 = product of:
  0.039324045 = sum of:
    0.039324045 = weight(_text_:u in 4847) [ClassicSimilarity], result of:
      0.039324045 = score(doc=4847,freq=2.0), product of:
        0.13587062 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041494254 = queryNorm
        0.28942272 = fieldWeight in 4847, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0625 = fieldNorm(doc=4847)
  0.2 = coord(1/5)

Theme: Semantisches Umfeld in Indexierung u. Retrieval

Jarvelin, K.: ¬A deductive data model for thesaurus navigation and query expansion (1996) 0.01

0.00786481 = product of:
  0.039324045 = sum of:
    0.039324045 = weight(_text_:u in 5625) [ClassicSimilarity], result of:
      0.039324045 = score(doc=5625,freq=2.0), product of:
        0.13587062 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041494254 = queryNorm
        0.28942272 = fieldWeight in 5625, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0625 = fieldNorm(doc=5625)
  0.2 = coord(1/5)

Theme: Semantisches Umfeld in Indexierung u. Retrieval

Ekmekcioglu, F.C.; Robertson, A.M.; Willett, P.: Effectiveness of query expansion in ranked-output document retrieval systems (1992) 0.01

0.00786481 = product of:
  0.039324045 = sum of:
    0.039324045 = weight(_text_:u in 5689) [ClassicSimilarity], result of:
      0.039324045 = score(doc=5689,freq=2.0), product of:
        0.13587062 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041494254 = queryNorm
        0.28942272 = fieldWeight in 5689, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0625 = fieldNorm(doc=5689)
  0.2 = coord(1/5)

Theme: Semantisches Umfeld in Indexierung u. Retrieval

Walker, S.: Subject access in online catalogues (1991) 0.01

0.00786481 = product of:
  0.039324045 = sum of:
    0.039324045 = weight(_text_:u in 5690) [ClassicSimilarity], result of:
      0.039324045 = score(doc=5690,freq=2.0), product of:
        0.13587062 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041494254 = queryNorm
        0.28942272 = fieldWeight in 5690, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0625 = fieldNorm(doc=5690)
  0.2 = coord(1/5)

Theme: Semantisches Umfeld in Indexierung u. Retrieval

Robertson, A.M.; Willett, P.: Applications of n-grams in textual information systems (1998) 0.01

0.00786481 = product of:
  0.039324045 = sum of:
    0.039324045 = weight(_text_:u in 4715) [ClassicSimilarity], result of:
      0.039324045 = score(doc=4715,freq=2.0), product of:
        0.13587062 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041494254 = queryNorm
        0.28942272 = fieldWeight in 4715, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0625 = fieldNorm(doc=4715)
  0.2 = coord(1/5)

Theme: Semantisches Umfeld in Indexierung u. Retrieval

Hancock-Beaulieu, M.; Fieldhouse, M.; Do, T.: ¬An evaluation of interactive query expansion in an online library catalogue with a graphical user interface (1995) 0.01

0.006881708 = product of:
  0.03440854 = sum of:
    0.03440854 = weight(_text_:u in 1666) [ClassicSimilarity], result of:
      0.03440854 = score(doc=1666,freq=2.0), product of:
        0.13587062 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041494254 = queryNorm
        0.25324488 = fieldWeight in 1666, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0546875 = fieldNorm(doc=1666)
  0.2 = coord(1/5)

Theme: Semantisches Umfeld in Indexierung u. Retrieval

Shapiro, C.D.; Yan, P.-F.: Generous tools : thesauri in digital libraries (1996) 0.01

0.006881708 = product of:
  0.03440854 = sum of:
    0.03440854 = weight(_text_:u in 3132) [ClassicSimilarity], result of:
      0.03440854 = score(doc=3132,freq=2.0), product of:
        0.13587062 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041494254 = queryNorm
        0.25324488 = fieldWeight in 3132, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0546875 = fieldNorm(doc=3132)
  0.2 = coord(1/5)

Theme: Semantisches Umfeld in Indexierung u. Retrieval

Magennis, M.: Expert rule-based query expansion (1995) 0.01

0.006881708 = product of:
  0.03440854 = sum of:
    0.03440854 = weight(_text_:u in 5181) [ClassicSimilarity], result of:
      0.03440854 = score(doc=5181,freq=2.0), product of:
        0.13587062 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041494254 = queryNorm
        0.25324488 = fieldWeight in 5181, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0546875 = fieldNorm(doc=5181)
  0.2 = coord(1/5)

Theme: Semantisches Umfeld in Indexierung u. Retrieval

Robertson, S.E.; Walker, S.; Hancock-Beaulieu, M.M.: Large test collection experiments of an operational, interactive system : OKAPI at TREC (1995) 0.01

0.006881708 = product of:
  0.03440854 = sum of:
    0.03440854 = weight(_text_:u in 6964) [ClassicSimilarity], result of:
      0.03440854 = score(doc=6964,freq=2.0), product of:
        0.13587062 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041494254 = queryNorm
        0.25324488 = fieldWeight in 6964, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0546875 = fieldNorm(doc=6964)
  0.2 = coord(1/5)

Theme: Semantisches Umfeld in Indexierung u. Retrieval

Hancock-Beaulieu, M.; Fieldhouse, M.; Do, T.: ¬A graphical interface for OKAPI : the design and evaluation of an online catalogue system with direct manipulation interaction for subject access (1994) 0.01

0.006881708 = product of:
  0.03440854 = sum of:
    0.03440854 = weight(_text_:u in 1318) [ClassicSimilarity], result of:
      0.03440854 = score(doc=1318,freq=2.0), product of:
        0.13587062 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041494254 = queryNorm
        0.25324488 = fieldWeight in 1318, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0546875 = fieldNorm(doc=1318)
  0.2 = coord(1/5)

Theme: Semantisches Umfeld in Indexierung u. Retrieval

Hancock-Beaulieu, M.; Walker, S.: ¬An evaluation of automatic query expansion in an online library catalogue (1992) 0.01

0.006881708 = product of:
  0.03440854 = sum of:
    0.03440854 = weight(_text_:u in 2731) [ClassicSimilarity], result of:
      0.03440854 = score(doc=2731,freq=2.0), product of:
        0.13587062 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041494254 = queryNorm
        0.25324488 = fieldWeight in 2731, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0546875 = fieldNorm(doc=2731)
  0.2 = coord(1/5)

Theme: Semantisches Umfeld in Indexierung u. Retrieval

Robertson, S.E.: OKAPI at TREC-3 (1995) 0.01

0.006881708 = product of:
  0.03440854 = sum of:
    0.03440854 = weight(_text_:u in 5694) [ClassicSimilarity], result of:
      0.03440854 = score(doc=5694,freq=2.0), product of:
        0.13587062 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041494254 = queryNorm
        0.25324488 = fieldWeight in 5694, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0546875 = fieldNorm(doc=5694)
  0.2 = coord(1/5)

Theme: Semantisches Umfeld in Indexierung u. Retrieval

Bean, C.: ¬The semantics of hierarchy : explicit parent-child relationships in MeSH tree structures (1998) 0.01

0.006881708 = product of:
  0.03440854 = sum of:
    0.03440854 = weight(_text_:u in 42) [ClassicSimilarity], result of:
      0.03440854 = score(doc=42,freq=2.0), product of:
        0.13587062 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.041494254 = queryNorm
        0.25324488 = fieldWeight in 42, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0546875 = fieldNorm(doc=42)
  0.2 = coord(1/5)

Theme: Semantisches Umfeld in Indexierung u. Retrieval

Search (61 results, page 2 of 4)

Authors

Types

Themes