Search (10 results, page 1 of 1)

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Abstract

Experiments in online searching behaviour have failed to explain the phenomena they were designed to study. An examination of the variables used in research to data finds the most commonly used independent variables are searcher characteristics. Search-process and search outcome variables are the most commonly dependent variables. The search process variables are inadequate because they are situational and subject to constant change. Significantly, these variables measure the cost of a search rather than the intellectual processes involved in answering a request. While these experiments could support the discovery of the 'productive searcher', they cannot uncover searching behaviour. Only in-depth analyses of the search process itself can lead to productive research

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Abstract

The model of operationalist and conceptualist searching styles describes searching behavior of experienced online searchers. It is based on the systematic observation of five experienced online searchers doing their regular, job-related searches, and on the analysis of 10 to 13 searches conducted by each of them. Operationalist searchers aim at optimal strategies to achieve precise retrieval; they use a large range of system capabilities in their interaction. They preserve the specific meaning of the request, and the aim of their interactions is an answer set representing the request precisely. Conceptualist searchers analyze a request by seeking to fit it into a faceted structure. They first enter the facet that represents the most important aspect of the request. Their search is then centered on retrieving subsets from this primary set by introducing additional facets. In contrast to the operationalists, they are primarily concerned with recall. During the interaction they preserve the faceted structure, but may change the specific meaning of the request. Although not comprehensive, the model aids in recognizing special and individual characteristics of searching behavior which provide explanations of previous research and guidelines for further investigations into the search process

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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

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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

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Date

22. 9.1997 19:16:05

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Date

22. 9.1997 19:16:05