Search (8 results, page 1 of 1)

Dillon, M.: Enhanced bibliographic record retrieval experiments (1989) 0.03

0.030406015 = product of:
  0.06081203 = sum of:
    0.06081203 = product of:
      0.12162406 = sum of:
        0.12162406 = weight(_text_:bibliographic in 1406) [ClassicSimilarity], result of:
          0.12162406 = score(doc=1406,freq=2.0), product of:
            0.17672792 = queryWeight, product of:
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.045395818 = queryNorm
            0.68819946 = fieldWeight in 1406, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.125 = fieldNorm(doc=1406)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Fuhr, N.; Niewelt, B.: ¬Ein Retrievaltest mit automatisch indexierten Dokumenten (1984) 0.02

0.021526773 = product of:
  0.043053545 = sum of:
    0.043053545 = product of:
      0.08610709 = sum of:
        0.08610709 = weight(_text_:22 in 262) [ClassicSimilarity], result of:
          0.08610709 = score(doc=262,freq=2.0), product of:
            0.15896842 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045395818 = queryNorm
            0.5416616 = fieldWeight in 262, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=262)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date: 20.10.2000 12:22:23

Saracevic, T.: On a method for studying the structure and nature of requests in information retrieval (1983) 0.02

0.015376267 = product of:
  0.030752534 = sum of:
    0.030752534 = product of:
      0.061505068 = sum of:
        0.061505068 = weight(_text_:22 in 2417) [ClassicSimilarity], result of:
          0.061505068 = score(doc=2417,freq=2.0), product of:
            0.15896842 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045395818 = queryNorm
            0.38690117 = fieldWeight in 2417, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=2417)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Pages: S.22-25

Feng, S.: ¬A comparative study of indexing languages in single and multidatabase searching (1989) 0.02
```
0.0152030075 = product of:
  0.030406015 = sum of:
    0.030406015 = product of:
      0.06081203 = sum of:
        0.06081203 = weight(_text_:bibliographic in 2494) [ClassicSimilarity], result of:
          0.06081203 = score(doc=2494,freq=2.0), product of:
            0.17672792 = queryWeight, product of:
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.045395818 = queryNorm
            0.34409973 = fieldWeight in 2494, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.0625 = fieldNorm(doc=2494)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
```
Abstract

An experiment was conducted using 3 data bases in library and information science - Library and Information Science Abstracts (LISA), Information Science Abstracts and ERIC - to investigate some of the main factors affecting on-line searching: effectiveness of search vocabularies, combinations of fields searched, and overlaps among databases. Natural language, controlled vocabulary and a mixture of natural language and controlled terms were tested using different fields of bibliographic records. Also discusses a comparative evaluation of single and multi-data base searching, measuring the overlap among data bases and their influence upon on-line searching.

Pao, M.L.: Retrieval differences between term and citation indexing (1989) 0.02

0.0152030075 = product of:
  0.030406015 = sum of:
    0.030406015 = product of:
      0.06081203 = sum of:
        0.06081203 = weight(_text_:bibliographic in 3566) [ClassicSimilarity], result of:
          0.06081203 = score(doc=3566,freq=2.0), product of:
            0.17672792 = queryWeight, product of:
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.045395818 = queryNorm
            0.34409973 = fieldWeight in 3566, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.0625 = fieldNorm(doc=3566)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract: A retrieval experiment was conducted to compare on-line searching using terms opposed to citations. This is the first study in which a single data base was used to retrieve two equivalent sets for each query, one using terms found in the bibliographic record to achieve higher recall, and the other using documents. Reports on the use of a second citation searching strategy. Overall, by using both types of search keys, the total recall is increased.

Sullivan, M.V.; Borgman, C.L.: Bibliographic searching by end-users and intermediaries : front-end software vs native DIALOG commands (1988) 0.01

0.011402255 = product of:
  0.02280451 = sum of:
    0.02280451 = product of:
      0.04560902 = sum of:
        0.04560902 = weight(_text_:bibliographic in 3560) [ClassicSimilarity], result of:
          0.04560902 = score(doc=3560,freq=2.0), product of:
            0.17672792 = queryWeight, product of:
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.045395818 = queryNorm
            0.2580748 = fieldWeight in 3560, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.046875 = fieldNorm(doc=3560)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Hodges, P.R.: Keyword in title indexes : effectiveness of retrieval in computer searches (1983) 0.01

0.010763386 = product of:
  0.021526773 = sum of:
    0.021526773 = product of:
      0.043053545 = sum of:
        0.043053545 = weight(_text_:22 in 5001) [ClassicSimilarity], result of:
          0.043053545 = score(doc=5001,freq=2.0), product of:
            0.15896842 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045395818 = queryNorm
            0.2708308 = fieldWeight in 5001, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5001)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date: 14. 3.1996 13:22:21

Sievert, M.E.; McKinin, E.J.: Why full-text misses some relevant documents : an analysis of documents not retrieved by CCML or MEDIS (1989) 0.01

0.00922576 = product of:
  0.01845152 = sum of:
    0.01845152 = product of:
      0.03690304 = sum of:
        0.03690304 = weight(_text_:22 in 3564) [ClassicSimilarity], result of:
          0.03690304 = score(doc=3564,freq=2.0), product of:
            0.15896842 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045395818 = queryNorm
            0.23214069 = fieldWeight in 3564, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046875 = fieldNorm(doc=3564)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date: 9. 1.1996 10:22:31

Search (8 results, page 1 of 1)

Authors

Languages

Types

Themes