Search (7 results, page 1 of 1)

  • × author_ss:"Ballard, T."
  • × theme_ss:"OPAC"
  1. Ballard, T.; Grimaldi, A.: Improve OPAC searching by reducing tagging errors in MARC records (1997) 0.03
    0.028787265 = product of:
      0.05757453 = sum of:
        0.05757453 = sum of:
          0.007654148 = weight(_text_:a in 695) [ClassicSimilarity], result of:
            0.007654148 = score(doc=695,freq=4.0), product of:
              0.053105544 = queryWeight, product of:
                1.153047 = idf(docFreq=37942, maxDocs=44218)
                0.046056706 = queryNorm
              0.14413087 = fieldWeight in 695, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                1.153047 = idf(docFreq=37942, maxDocs=44218)
                0.0625 = fieldNorm(doc=695)
          0.04992038 = weight(_text_:22 in 695) [ClassicSimilarity], result of:
            0.04992038 = score(doc=695,freq=2.0), product of:
              0.16128273 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046056706 = queryNorm
              0.30952093 = fieldWeight in 695, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.0625 = fieldNorm(doc=695)
      0.5 = coord(1/2)
    
    Date
    6. 3.1997 16:22:15
    Type
    a
  2. Ballard, T.: Spelling and typographical errors in library databases (1992) 0.00
    0.0023919214 = product of:
      0.0047838427 = sum of:
        0.0047838427 = product of:
          0.009567685 = sum of:
            0.009567685 = weight(_text_:a in 5971) [ClassicSimilarity], result of:
              0.009567685 = score(doc=5971,freq=4.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.18016359 = fieldWeight in 5971, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.078125 = fieldNorm(doc=5971)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Describes a system for identifying and correcting spelling and typographical errors in the OPAC data base at Adelphi University Library, New York State. Lists spelling errors found in the OPAC along with the number of occurrences
    Type
    a
  3. Ballard, T.; Lifshin, A.: Prediction of OPAC spelling errors through a keyword inventory (1992) 0.00
    0.0023678814 = product of:
      0.0047357627 = sum of:
        0.0047357627 = product of:
          0.009471525 = sum of:
            0.009471525 = weight(_text_:a in 1499) [ClassicSimilarity], result of:
              0.009471525 = score(doc=1499,freq=8.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.17835285 = fieldWeight in 1499, product of:
                  2.828427 = tf(freq=8.0), with freq of:
                    8.0 = termFreq=8.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=1499)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    In order to find and correct spelling errors in the online public access catalog at Adelphi University, a visual inspection was performed of the 117.000 keywords indexed in the system. More than 1.000 errors were found. Certain long but common words such as administration, education, and commercial were found to generate many different misspellings. Most of the records were derived from bibliographic utilities, so the findings can be generalized to other OPACs. The same misspellings were also found in substantial numbers in CD-ROM databases. Misspellings were analyzed by the machine-readable catalog (MARC) field in which they were found, part of speech, and type of mistake. Lists of commonly misspelled root words and specific mistakes are included
    Type
    a
  4. Ballard, T.: Comparative searching styles of patrons and staff (1994) 0.00
    0.001913537 = product of:
      0.003827074 = sum of:
        0.003827074 = product of:
          0.007654148 = sum of:
            0.007654148 = weight(_text_:a in 8501) [ClassicSimilarity], result of:
              0.007654148 = score(doc=8501,freq=4.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.14413087 = fieldWeight in 8501, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.0625 = fieldNorm(doc=8501)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    3 months of transaction records from the INNOPAC online catalogue, at Adelphi University, New York, were examined. Patron searchers rely on the standard access points of subject, title, and author for nearly 90% of their searches. Library employees search by title nearly 50% of the time. Title searching predominated among technical services staff as well as public service staff. Approximately 30% of staff searches and 40% of patron searches retrieved no records. Patrons were 10 times more likely than staff to make a search resulting in 500 or more hits
    Type
    a
  5. Ballard, T.: Library systems : transaction log fever; analyzing patron searches can reveal solutions to increase search success (1996) 0.00
    0.001913537 = product of:
      0.003827074 = sum of:
        0.003827074 = product of:
          0.007654148 = sum of:
            0.007654148 = weight(_text_:a in 5761) [ClassicSimilarity], result of:
              0.007654148 = score(doc=5761,freq=4.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.14413087 = fieldWeight in 5761, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.0625 = fieldNorm(doc=5761)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Describes research into unsuccessful searches of OPACs by analyzing searches and computer messages, explaining how data was collected and analysed in a study at Adelphi University in 1994. Discusses ways of bridging the gap between users' formulations of subjects and the terms used in authority files and subject heading schemes
    Type
    a
  6. Ballard, T.: Online catalogs : finding the weakest link: maintaining Web links in MARC records requires quality control decisions (1998) 0.00
    0.001913537 = product of:
      0.003827074 = sum of:
        0.003827074 = product of:
          0.007654148 = sum of:
            0.007654148 = weight(_text_:a in 2594) [ClassicSimilarity], result of:
              0.007654148 = score(doc=2594,freq=4.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.14413087 = fieldWeight in 2594, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.0625 = fieldNorm(doc=2594)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Reviews the potential revolution in the creation and smooth delivery of information on an OPAC released by the MARC 856 field. This offers the catalogue users an active link to a WWW site. Predicts the use of such links for accessing texts or showing locations within the library. Outlines the problems of maintaining the field 856 links and some of the solutions that are being applied by information professionals
    Type
    a
  7. Ballard, T.; Smith, J.: ¬The human interface : an ongoing study of OPAC usage at Adelphi University (1992) 0.00
    0.001353075 = product of:
      0.00270615 = sum of:
        0.00270615 = product of:
          0.0054123 = sum of:
            0.0054123 = weight(_text_:a in 1590) [ClassicSimilarity], result of:
              0.0054123 = score(doc=1590,freq=2.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.10191591 = fieldWeight in 1590, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.0625 = fieldNorm(doc=1590)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    a