Temporal Expressiveness in Querying a Time-stamp— based Clinical Database

Most health care databases include time-stamped instant data as the only temporal representation of patient information. Many previous efforts have attempted to provide frameworks in which medical databases could be queried in relation to time. These, however, have required either a sophisticated da...

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Main Authors:	Nigrin, Daniel J., Kohane, Isaac S.
Format:	Artigo
Language:	Inglês
Published:	American Medical Informatics Association 2000
Subjects:	The Practice of Informatics
Online Access:	https://ncbi.nlm.nih.gov/pmc/articles/PMC61469/ https://ncbi.nlm.nih.gov/pubmed/10730599
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id	pubmed-61469
record_format	dspace
spelling	pubmed-614692001-12-27 Temporal Expressiveness in Querying a Time-stamp— based Clinical Database Nigrin, Daniel J. Kohane, Isaac S. J Am Med Inform Assoc The Practice of Informatics Most health care databases include time-stamped instant data as the only temporal representation of patient information. Many previous efforts have attempted to provide frameworks in which medical databases could be queried in relation to time. These, however, have required either a sophisticated database representation of time, including time intervals, or a time-stamp-based database coupled with a nonstandard temporal query language. In this work, the authors demonstrate how their previously described data retrieval application, DXtractor, can be used as a database querying application with expressive power close to that of temporal databases and temporal query languages, using only standard SQL and existing time-stamp-based repositories. DXtractor provides the ability to compose temporal queries through an interface that is understood by nonprogramming medical personnel. Not all temporal constructs are easily implemented using this framework; nonetheless, DXtractor's temporal capabilities provide a significant improvement in the temporal expressivity accessible to clinicians using standard time-stamped clinical databases. American Medical Informatics Association 2000 /pmc/articles/PMC61469/ /pubmed/10730599 Text en Copyright © 2000, American Medical Informatics Association
institution	US NLM
collection	PubMed Central
language	Inglês
format	Artigo
topic	The Practice of Informatics
spellingShingle	The Practice of Informatics Nigrin, Daniel J. Kohane, Isaac S. Temporal Expressiveness in Querying a Time-stamp— based Clinical Database
description	Most health care databases include time-stamped instant data as the only temporal representation of patient information. Many previous efforts have attempted to provide frameworks in which medical databases could be queried in relation to time. These, however, have required either a sophisticated database representation of time, including time intervals, or a time-stamp-based database coupled with a nonstandard temporal query language. In this work, the authors demonstrate how their previously described data retrieval application, DXtractor, can be used as a database querying application with expressive power close to that of temporal databases and temporal query languages, using only standard SQL and existing time-stamp-based repositories. DXtractor provides the ability to compose temporal queries through an interface that is understood by nonprogramming medical personnel. Not all temporal constructs are easily implemented using this framework; nonetheless, DXtractor's temporal capabilities provide a significant improvement in the temporal expressivity accessible to clinicians using standard time-stamped clinical databases.
author	Nigrin, Daniel J. Kohane, Isaac S.
author_facet	Nigrin, Daniel J. Kohane, Isaac S.
author_sort	Nigrin, Daniel J.
title	Temporal Expressiveness in Querying a Time-stamp— based Clinical Database
title_short	Temporal Expressiveness in Querying a Time-stamp— based Clinical Database
title_full	Temporal Expressiveness in Querying a Time-stamp— based Clinical Database
title_fullStr	Temporal Expressiveness in Querying a Time-stamp— based Clinical Database
title_full_unstemmed	Temporal Expressiveness in Querying a Time-stamp— based Clinical Database
title_sort	temporal expressiveness in querying a time-stamp— based clinical database
publisher	American Medical Informatics Association
publishDate	2000
url	https://ncbi.nlm.nih.gov/pmc/articles/PMC61469/ https://ncbi.nlm.nih.gov/pubmed/10730599
_version_	1742057041173676032

Temporal Expressiveness in Querying a Time-stamp— based Clinical Database

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