Search (5 results, page 1 of 1)

  • × author_ss:"Crestani, F."
  1. Tombros, T.; Crestani, F.: Users' perception of relevance of spoken documents (2000) 0.09
    0.08917837 = product of:
      0.17835674 = sum of:
        0.17835674 = product of:
          0.35671347 = sum of:
            0.35671347 = weight(_text_:perception in 4996) [ClassicSimilarity], result of:
              0.35671347 = score(doc=4996,freq=10.0), product of:
                0.32135084 = queryWeight, product of:
                  6.4187727 = idf(docFreq=195, maxDocs=44218)
                  0.05006422 = queryNorm
                1.1100436 = fieldWeight in 4996, product of:
                  3.1622777 = tf(freq=10.0), with freq of:
                    10.0 = termFreq=10.0
                  6.4187727 = idf(docFreq=195, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=4996)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    We present the results of a study of user's perception of relevance of documents. The aim is to study experimentally how users' perception varies depending on the form that retrieved documents are presented. Documents retrieved in response to a query are presented to users in a variety of ways, from full text to a machine spoken query-biased automatically-generated summary, and the difference in users' perception of relevance is studied. The experimental results suggest that the effectiveness of advanced multimedia Information Retrieval applications may be affected by the low level of users' perception of relevance of retrieved documents
  2. Crestani, F.; Mizzaro, S.; Scagnetto, I,: Mobile information retrieval (2017) 0.03
    0.028486984 = product of:
      0.056973968 = sum of:
        0.056973968 = product of:
          0.113947935 = sum of:
            0.113947935 = weight(_text_:perception in 4469) [ClassicSimilarity], result of:
              0.113947935 = score(doc=4469,freq=2.0), product of:
                0.32135084 = queryWeight, product of:
                  6.4187727 = idf(docFreq=195, maxDocs=44218)
                  0.05006422 = queryNorm
                0.35459045 = fieldWeight in 4469, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  6.4187727 = idf(docFreq=195, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=4469)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    This book offers a helpful starting point in the scattered, rich, and complex body of literature on Mobile Information Retrieval (Mobile IR), reviewing more than 200 papers in nine chapters. Highlighting the most interesting and influential contributions that have appeared in recent years, it particularly focuses on both user interaction and techniques for the perception and use of context, which, taken together, shape much of today's research on Mobile IR. The book starts by addressing the differences between IR and Mobile IR, while also reviewing the foundations of Mobile IR research. It then examines the different kinds of documents, users, and information needs that can be found in Mobile IR, and which set it apart from standard IR. Next, it discusses the two important issues of user interfaces and context-awareness. In closing, it covers issues related to the evaluation of Mobile IR applications. Overall, the book offers a valuable tool, helping new and veteran researchers alike to navigate this exciting and highly dynamic area of research.
  3. Crestani, F.; Rijsbergen, C.J. van: Information retrieval by imaging (1996) 0.01
    0.010174517 = product of:
      0.020349033 = sum of:
        0.020349033 = product of:
          0.040698066 = sum of:
            0.040698066 = weight(_text_:22 in 6967) [ClassicSimilarity], result of:
              0.040698066 = score(doc=6967,freq=2.0), product of:
                0.17531638 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.05006422 = queryNorm
                0.23214069 = fieldWeight in 6967, 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=6967)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Information retrieval: new systems and current research. Proceedings of the 16th Research Colloquium of the British Computer Society Information Retrieval Specialist Group, Drymen, Scotland, 22-23 Mar 94. Ed.: R. Leon
  4. Crestani, F.; Dominich, S.; Lalmas, M.; Rijsbergen, C.J.K. van: Mathematical, logical, and formal methods in information retrieval : an introduction to the special issue (2003) 0.01
    0.010174517 = product of:
      0.020349033 = sum of:
        0.020349033 = product of:
          0.040698066 = sum of:
            0.040698066 = weight(_text_:22 in 1451) [ClassicSimilarity], result of:
              0.040698066 = score(doc=1451,freq=2.0), product of:
                0.17531638 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.05006422 = queryNorm
                0.23214069 = fieldWeight in 1451, 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=1451)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 3.2003 19:27:36
  5. Crestani, F.; Du, H.: Written versus spoken queries : a qualitative and quantitative comparative analysis (2006) 0.01
    0.010174517 = product of:
      0.020349033 = sum of:
        0.020349033 = product of:
          0.040698066 = sum of:
            0.040698066 = weight(_text_:22 in 5047) [ClassicSimilarity], result of:
              0.040698066 = score(doc=5047,freq=2.0), product of:
                0.17531638 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.05006422 = queryNorm
                0.23214069 = fieldWeight in 5047, 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=5047)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    5. 6.2006 11:22:23