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| Information Retrieval | 7 |
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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)
Peterson, Gabriel M.; Su, Kuichun; Ries, James E.; Sievert, Mary Ellen C. – Proceedings of the ASIST Annual Meeting, 2002
Discussion of Internet use for information searches on health-related topics focuses on a study that examined complexity and variability of natural language in using search terms that express the concept of electronic health (e-health). Highlights include precision of retrieved information; shift in terminology; and queries using the Pub Med…
Descriptors: Information Retrieval, Internet, Natural Language Processing, Relevance (Information Retrieval)
Peer reviewedKim, Won; Wilbur, W. John – Journal of the American Society for Information Science and Technology, 2001
Presents three different statistical techniques for identifying content-bearing phrases within a natural language database. Describes results on the effectiveness of the scoring methods when applied to MEDLINE phrases, and how the three methods can be combined to improve performance. Processing results for an example document are provided.…
Descriptors: Data Processing, Databases, Document Delivery, Indexing
Gilchrist, Alan, Ed. – 1997
This set of papers offers insights into some of the major developments in the field of classification and knowledge organization, and highlights many of the fundamental changes in views and theories which have taken place during the last 40 years. This document begins with a series of reminiscences from former delegates of the first International…
Descriptors: Abstracting, Access to Information, Cataloging, Classification
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
Peer reviewedMai, Jens-Erik – Journal of Documentation, 2001
Explains some major problems related to the subject indexing process and proposes semiotics as a framework for understanding the interpretive nature of the process. Explores the approach to studies of indexing and library and information science suggested by Fairthorne, Blair, Benediktsson, and others. Offers an explanation of what occurs in the…
Descriptors: Authority Control (Information), Indexes, Indexing, Information Retrieval
Heidorn, P. Bryan – Proceedings of the ASIS Annual Meeting, 1999
Examines the vocabulary and communication constructs that are used by novices and domain experts to describe objects in an object identification task. Results suggest that indexing and retrieval systems should provide semantic level similarity mechanisms to allow for whole-object as well as part-wise visual analogy. The systems should also provide…
Descriptors: Indexing, Information Processing, Information Retrieval, Information Seeking
