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Peer reviewedZhou, Lina; Zhang, Dongsong – Journal of the American Society for Information Science and Technology, 2003
Proposes a theoretical framework called NLPIR that integrates natural language processing (NLP) into information retrieval (IR) based on the assumption that there exists representation distance between queries and documents. Discusses problems in traditional keyword-based IR, including relevance, and describes some existing NLP techniques.…
Descriptors: Information Retrieval, Keywords, Natural Language Processing, Relevance (Information Retrieval)
Peer reviewedSilvester, June P.; And Others – Information Processing and Management, 1994
Describes the National Aeronautics and Space Administration (NASA) Lexical Dictionary (NLD), a machine-aided indexing system used online at the NASA Center for AeroSpace Information (CASI). The functions of NLD system components are described in detail, and production and quality benefits resulting from machine-aided indexing at CASI are…
Descriptors: Automatic Indexing, Database Management Systems, Dictionaries, Evaluation
