Search (12 results, page 1 of 1)

  • × author_ss:"Fidel, R."
  • × year_i:[1990 TO 2000}
  1. Fidel, R.; Crandall, M.: ¬The role of subject access in information filtering (1998) 0.02 
    0.015148811 = product of:
  0.022723217 = sum of:
    0.0074199745 = weight(_text_:a in 2336) [ClassicSimilarity], result of:
      0.0074199745 = score(doc=2336,freq=10.0), product of:
        0.05209492 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.045180224 = queryNorm
        0.14243183 = fieldWeight in 2336, product of:
          3.1622777 = tf(freq=10.0), with freq of:
            10.0 = termFreq=10.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2336)
    0.015303242 = product of:
      0.030606484 = sum of:
        0.030606484 = weight(_text_:22 in 2336) [ClassicSimilarity], result of:
          0.030606484 = score(doc=2336,freq=2.0), product of:
            0.15821345 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045180224 = queryNorm
            0.19345059 = fieldWeight in 2336, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2336)
      0.5 = coord(1/2)
  0.6666667 = coord(2/3)
    Abstract
    The sheer amount of electronic information makes filtering a vital component of contemporary information work. Field observations of managers and engineers at the Boeing Company who received filtered information about computer-related topics revealed criteria they used to select, and those they used to reject, documents within their subject interest. Responses to a questionnaire indicated that some criteria are used more frequently and are more important than others. The few criteria that related to the subject matter of the documents were not limited to a subject domain. Other criteria addressed the form of the documents, their content, and writing style. In addition, some criteria were stable and somewhat objective and others were situational and subjective. An examination of these criteria shows that many of them could be used in filtering, in addition to subject-based mechanisms, and that they might be particularly useful for systems with multiple sources because they can provide a useful filter that is not based on the subject domain
    Date
    22. 9.1997 19:16:05
    Type
    a
  2. Fidel, R.: Who needs controlled vocabulary? (1992) 0.00 
    0.004424418 = product of:
  0.013273253 = sum of:
    0.013273253 = weight(_text_:a in 2693) [ClassicSimilarity], result of:
      0.013273253 = score(doc=2693,freq=2.0), product of:
        0.05209492 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.045180224 = queryNorm
        0.25478977 = fieldWeight in 2693, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.15625 = fieldNorm(doc=2693)
  0.33333334 = coord(1/3)
    Type
    a
  3. Fidel, R.: Thesaurus requirements for an intermediary expert system (1992) 0.00 
    0.0041973717 = product of:
  0.0125921145 = sum of:
    0.0125921145 = weight(_text_:a in 2103) [ClassicSimilarity], result of:
      0.0125921145 = score(doc=2103,freq=20.0), product of:
        0.05209492 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.045180224 = queryNorm
        0.24171482 = fieldWeight in 2103, product of:
          4.472136 = tf(freq=20.0), with freq of:
            20.0 = termFreq=20.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.046875 = fieldNorm(doc=2103)
  0.33333334 = coord(1/3)
    Abstract
    Direct observations and analysis of searching behaviour of professional online searchers shed light on thesaurus requirements for an intermediary expert system - a system that mediates between online databases and end users. Examination of searchers' decisions about the selection of search keys, and of the knowledge about terminological and subject properties that are employed, illuminated the requirements for a thesaurus that will facilitate the selection of search keys. Expert knowledge is needed when: a term occurs very frequently in the database; it has many synonyms; it is ambiguous; it is vague; or its meaning is context dependent. To diagnose such terms and to give advice, a thesaurus would be used together with a variety of text sources such as databases' thesauri, machine-readable dictionaries and glossaries and the databases' text. The thesaurus would be a knowledge structure that indicates frequency data, hedges, and a classificatory structure; both intellectual and automated procedures would be used to create it. Such a knowledge structure in place would require a new approach to text analysis and to the construction of controlled vocabularies
    Type
    a
  4. Fidel, R.: Online searching styles (1990) 0.00 
    0.0035395343 = product of:
  0.010618603 = sum of:
    0.010618603 = weight(_text_:a in 2679) [ClassicSimilarity], result of:
      0.010618603 = score(doc=2679,freq=2.0), product of:
        0.05209492 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.045180224 = queryNorm
        0.20383182 = fieldWeight in 2679, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.125 = fieldNorm(doc=2679)
  0.33333334 = coord(1/3)
    Type
    a
  5. Fidel, R.: Searchers' selection of search keys : 1. The selection routine (1991) 0.00 
    0.0035395343 = product of:
  0.010618603 = sum of:
    0.010618603 = weight(_text_:a in 2993) [ClassicSimilarity], result of:
      0.010618603 = score(doc=2993,freq=2.0), product of:
        0.05209492 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.045180224 = queryNorm
        0.20383182 = fieldWeight in 2993, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.125 = fieldNorm(doc=2993)
  0.33333334 = coord(1/3)
    Type
    a
  6. Fidel, R.: Searchers' selection of search keys : 3. Searching styles (1991) 0.00 
    0.0035395343 = product of:
  0.010618603 = sum of:
    0.010618603 = weight(_text_:a in 7930) [ClassicSimilarity], result of:
      0.010618603 = score(doc=7930,freq=2.0), product of:
        0.05209492 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.045180224 = queryNorm
        0.20383182 = fieldWeight in 7930, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.125 = fieldNorm(doc=7930)
  0.33333334 = coord(1/3)
    Type
    a
  7. Fidel, R.; Davies, R.K.; Douglass, M.H.; Holder, J.K.; Hopkins, C.J.; Kushner, E.J.; Miyagishimas, B.K.; Toney, C.D.: ¬A visit to the information mall : Web searching behavior of high school students (1999) 0.00 
    0.0035117732 = product of:
  0.010535319 = sum of:
    0.010535319 = weight(_text_:a in 2949) [ClassicSimilarity], result of:
      0.010535319 = score(doc=2949,freq=14.0), product of:
        0.05209492 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.045180224 = queryNorm
        0.20223314 = fieldWeight in 2949, product of:
          3.7416575 = tf(freq=14.0), with freq of:
            14.0 = termFreq=14.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.046875 = fieldNorm(doc=2949)
  0.33333334 = coord(1/3)
    Abstract
    This article analyzes Web searching behavior for homework assignments of high school students through field observations in class and the terminal with students thinking alound, and through interviews with various participants, including the teacher and librarian. Students performed focused searching and progressed through a search swiftly and flexibly. They used landmarks and assumed that one can always start a new search and ask for help. They were satisfied with their searches and the results, but impatient with slow response. The students enjoyed searching the Web because it had a variety of formats, it showed pictures, it covered a multitude of subjects and it provided easy access to information. Difficulties and problems students encountered emphasize the need for training to all involved, and for a system design that is based on user seeking and searching behavior
    Type
    a
  8. Fidel, R.; Efthimiadis, E.N.: Terminological knowledge structure for intermediary expert systems (1995) 0.00 
    0.0035117732 = product of:
  0.010535319 = sum of:
    0.010535319 = weight(_text_:a in 5695) [ClassicSimilarity], result of:
      0.010535319 = score(doc=5695,freq=14.0), product of:
        0.05209492 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.045180224 = queryNorm
        0.20223314 = fieldWeight in 5695, product of:
          3.7416575 = tf(freq=14.0), with freq of:
            14.0 = termFreq=14.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.046875 = fieldNorm(doc=5695)
  0.33333334 = coord(1/3)
    Abstract
    To provide advice for online searching about term selection and query expansion, an intermediary expert system should indicate a terminological knowledge structure. Terminological attributes could provide the foundation of a knowledge base, and knowledge acquisition could rely on knowledge base techniques coupled with statistical techniques. The strategies of expert searchers would provide 1 source of knowledge. The knowledge structure would include 3 constructs for each term: frequency data, a hedge, and a position in a classification scheme. Switching vocabularies could provide a meta-scheme and facilitate the interoperability of databases in similar subjects. To develop such knowledge structure, research should focus on terminological attributes, word and phrase disambiguation, automated text processing, and the role of thesauri and classification schemes in indexing and retrieval. It should develop techniques that combine knowledge base and statistical methods and that consider user preferences
    Type
    a
  9. Fidel, R.: User-centered indexing (1994) 0.00 
    0.003462655 = product of:
  0.010387965 = sum of:
    0.010387965 = weight(_text_:a in 8259) [ClassicSimilarity], result of:
      0.010387965 = score(doc=8259,freq=10.0), product of:
        0.05209492 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.045180224 = queryNorm
        0.19940455 = fieldWeight in 8259, product of:
          3.1622777 = tf(freq=10.0), with freq of:
            10.0 = termFreq=10.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.0546875 = fieldNorm(doc=8259)
  0.33333334 = coord(1/3)
    Abstract
    Two distinct approaches describe the process of indexing. The document-oriented approach claims that indexing summarizes or represents the content of a document. The user-oriented approach requires that indexing reflect the requests for which a document might be relevant. Most indexing, in practice as well as in theory, subscribe to both, but the document-oriented approach has enjoyed most viability. While request-oriented indexing is a user-centered approach, it is very difficult to implement with human, a priori indexing. Automated indexing with its dynamic and flexible nature is most fit to tailor indexing to requirements of individual users and requests, yet most of current research in the area focuses on the development of global methods. Regardless of the method, user-centered indexing cannot be developed before searching behavior is understood better
    Type
    a
  10. Fidel, R.: Searchers' selection of search keys : 2. Controlled vocabulary or free-text searching (1991) 0.00 
    0.0030970925 = product of:
  0.009291277 = sum of:
    0.009291277 = weight(_text_:a in 7929) [ClassicSimilarity], result of:
      0.009291277 = score(doc=7929,freq=2.0), product of:
        0.05209492 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.045180224 = queryNorm
        0.17835285 = fieldWeight in 7929, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.109375 = fieldNorm(doc=7929)
  0.33333334 = coord(1/3)
    Type
    a
  11. Fidel, R.: Qualitative methods in information retrieval research (1993) 0.00 
    0.002682161 = product of:
  0.008046483 = sum of:
    0.008046483 = weight(_text_:a in 2289) [ClassicSimilarity], result of:
      0.008046483 = score(doc=2289,freq=6.0), product of:
        0.05209492 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.045180224 = queryNorm
        0.1544581 = fieldWeight in 2289, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.0546875 = fieldNorm(doc=2289)
  0.33333334 = coord(1/3)
    Abstract
    This review of the literature shows that the number of research projects in information retrieval (IR) that employ qualitative methods is on the rise. Although no agreed-upon definition exists for the concept qualitative research, a number of typical characteristics describe its nature. Qualitative research is noncontrolling, holistic and case oriented, about processes, open and flexible, diverse in methods, humanistic, inductive, and scientific. Although these characteristics make qualitative methods the best for exploring human behavior in depth, and thus of great relevance to IR research, only a few studies present all of them. Doctoral students, librarians, and others who are intersted in qualitative methods have many sources for gaining support and guidance: methodological writings, textbooks and handbooks, and several deprtments at academic institutions
    Type
    a
  12. Fidel, R.: ¬The image retrieval task : implications for the design and evaluation of image databases (1997) 0.00 
    0.002654651 = product of:
  0.007963953 = sum of:
    0.007963953 = weight(_text_:a in 2885) [ClassicSimilarity], result of:
      0.007963953 = score(doc=2885,freq=8.0), product of:
        0.05209492 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.045180224 = queryNorm
        0.15287387 = fieldWeight in 2885, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.046875 = fieldNorm(doc=2885)
  0.33333334 = coord(1/3)
    Abstract
    A review of studies about searching beganiour in image retrieval suggests that retrieval tasks may affect searching behaviour. Retrieval tasks occur along a spectrum starting with the Data Pole, which involves retrieval of images for the information which the image include, and ending with the Objects Pole, which concerns the retrieval of images as objects. Each Pole generates a certain searching behaviour which has characteristics opposing those of the other pole. These characteristics suggest that: relevance feedback may not be useful for tasks on the Object Pole; measuring precision on the Data Pole should be replaced with another measurement of effort and time, while on the Objects Pole, the quality of browsing sets and the precision of the browsing process should be measured instead of precision; and recall is not useful for the Data Pole, and requires much exploration before it can be adopted for the Object Pole. Additional research in searching behaviour and about performance measurement will improve retrieval from image databases
    Type
    a

Authors

Themes