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Direct linkHuang, Jia – ProQuest LLC, 2014
Information retrieval (IR) systems have tremendously broaden users' access to information. However, users need to select their needs from trillions of information indexed daily. Due to the "semantic gap" between queries and indexed terms in IR system, whether users can satisfy their needs depends on whether they use the correct terms as…
Descriptors: Information Retrieval, Information Needs, Documentation, Information Systems
