Search (3 results, page 1 of 1)

  • × author_ss:"Ménard, E."
  • × year_i:[2000 TO 2010}
  1. Arsenault, C.; Ménard, E.: Searching titles with initial articles in library catalogs : a case study and search behavior analysis (2007) 0.02 
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    Abstract
    This study examines problems caused by initial articles in library catalogs. The problematic records observed are those whose titles begin with a word erroneously considered to be an article at the retrieval stage. Many retrieval algorithms edit queries by removing initial words corresponding to articles found in an exclusion list even whether the initial word is an article or not. Consequently, a certain number of documents remain more difficult to find. The study also examines user behavior during known-item retrieval using the title index in library catalogs, concentrating on the problems caused by the presence of an initial article or of a word homograph to an article. Measures of success and effectiveness are taken to determine if retrieval is affected in such cases.
    Date
    10. 9.2000 17:38:22
    Type
    a
  2. Ménard, E.: Image retrieval : a comparative study on the influence of indexing vocabularies (2009) 0.00 
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    Abstract
    This paper reports on a research project that compared two different approaches for the indexing of ordinary images representing common objects: traditional indexing with controlled vocabulary and free indexing with uncontrolled vocabulary. We also compared image retrieval within two contexts: a monolingual context where the language of the query is the same as the indexing language and, secondly, a multilingual context where the language of the query is different from the indexing language. As a means of comparison in evaluating the performance of each indexing form, a simulation of the retrieval process involving 30 images was performed with 60 participants. A questionnaire was also submitted to participants in order to gather information with regard to the retrieval process and performance. The results of the retrieval simulation confirm that the retrieval is more effective and more satisfactory for the searcher when the images are indexed with the approach combining the controlled and uncontrolled vocabularies. The results also indicate that the indexing approach with controlled vocabulary is more efficient (queries needed to retrieve an image) than the uncontrolled vocabulary indexing approach. However, no significant differences in terms of temporal efficiency (time required to retrieve an image) was observed. Finally, the comparison of the two linguistic contexts reveal that the retrieval is more effective and more efficient (queries needed to retrieve an image) in the monolingual context rather than the multilingual context. Furthermore, image searchers are more satisfied when the retrieval is done in a monolingual context rather than a multilingual context.
    Type
    a
  3. Ménard, E.: Indexing and retrieving images in a multilingual world (2008) 0.00 
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    Content
    This paper presents the problem statement, the methodology and the preliminary results of a research project aiming to compare two different approaches for indexing images, namely: traditional image indexing with the use of controlled vocabularies, and free image indexing using uncontrolled vocabulary. The experiment intends to measure their respective performance for image retrieval in a multilingual context, in terms of effectiveness, efficiency, and satisfaction of the user.
    Type
    a

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