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Biomedical subjects

B R Schatz

Publications and source records attributed to B R Schatz.

4 recordsLinked to original sources
PubMed1999

Extracting noun phrases for all of MEDLINE.

A natural language parser that could extract noun phrases for all medical texts would be of great utility in analyzing content for information retrieval. We discuss the extraction of noun phrases from MEDLINE, using a general parser not tuned specifically for any medical domain. The noun phrase extractor is made up of three modules: tokenization; part-of-speech tagging; noun phrase identification. Using our program, we extracted noun phrases from the entire MEDLINE collection, encompassing 9.3 million abstracts. Over 270 million noun phrases were generated, of which 45 million were unique. The quality of these phrases was evaluated by examining all phrases from a sample collection of abstracts. The precision and recall of the phrases from our general parser compared favorably with those from three other parsers we had previously evaluated. We are continuing to improve our parser and evaluate our claim that a generic parser can effectively extract all the different phrases across the entire medical literature.

Linguistics↗
PubMed1997

Information retrieval in digital libraries: bringing search to the net.

A digital library enables users to interact effectively with information distributed across a network. These network information systems support search and display of items from organized collections. In the historical evolution of digital libraries, the mechanisms for retrieval of scientific literature have been particularly important. Grand visions in 1960 led first to the development of text search, from bibliographic databases to full-text retrieval. Next, research prototypes catalyzed the rise of document search, from multimedia browsing across local-area networks to distributed search on the Internet. By 2010, the visions will be realized, with concept search enabling semantic retrieval across large collections.

Abstracting and Indexing↗
PubMedDate not supplied

Monitoring of quality of life in congestive heart failure populations.

The health care system has traditionally focused on treating disease at the point of failure, such as life-saving surgery or intensive medical therapy. As demographics shift more to an aging population, management of health-related quality of life and life-restricting disease becomes more necessary. Prominent among such diseases is congestive heart failure, which must be addressed as a major chronic health condition with its consequent effect on quality of life. This paper examines the methods of monitoring the quality of life in congestive heart failure. Particular attention is paid to congestive heart failure-related questionnaires to derive lifestyle information directly from patients. Comparison is made with general quality of life instruments. Most commonly, these questionnaires are applied to small populations in limited situations. New technology, such as the Internet, has greatly expanded the breadth and depth of health monitors by tracking status directly in patients' homes. This promises new levels of population management for heart disease. (c)2001 by CHF, Inc.

Journal Article↗