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At least 1,585 records · Page 88Linked to original sources
PubMed2005

A terminological and ontological analysis of the NCI Thesaurus.

OBJECTIVE: The National Cancer Institute Thesaurus is described by its authors as "a biomedical vocabulary that provides consistent, unambiguous codes and definitions for concepts used in cancer research" and which "exhibits ontology-like properties in its construction and use". We performed a qualitative analysis of the Thesaurus in order to assess its conformity with principles of good practice in terminology and ontology design. MATERIALS AND METHODS: We used both the on-line browsable version of the Thesaurus and its OWL-representation (version 04.08b, released on August 2, 2004), measuring each in light of the requirements put forward in relevant ISO terminology standards and in light of ontological principles advanced in the recent literature. RESULTS: We found many mistakes and inconsistencies with respect to the term-formation principles used, the underlying knowledge representation system, and missing or inappropriately assigned verbal and formal definitions. CONCLUSION: Version 04.08b of the NCI Thesaurus suffers from the same broad range of problems that have been observed in other biomedical terminologies. For its further development, we recommend the use of a more principled approach that allows the Thesaurus to be tested not just for internal consistency but also for its degree of correspondence to that part of reality which it is designed to represent.

Computational Biology↗
PubMed2005

MorphoSaurus--design and evaluation of an interlingua-based, cross-language document retrieval engine for the medical domain.

OBJECTIVES: We propose an interlingua-based indexing approach to account for the particular challenges that arise in the design and implementation of cross-language document retrieval systems for the medical domain. METHODS: Documents, as well as queries, are mapped to a language-independent conceptual layer on which retrieval operations are performed. We contrast this approach with the direct translation of German queries to English ones which, subsequently, are matched against English documents. RESULTS: We evaluate both approaches, interlingua-based and direct translation, on a large medical document collection, the OHSUMED corpus. A substantial benefit for interlingua-based document retrieval using German queries on English texts is found, which amounts to 93% of the (monolingual) English baseline. CONCLUSIONS: Most state-of-the-art cross-language information retrieval systems translate user queries to the language(s) of the target documents. In contra-distinction to this approach, translating both documents and user queries into a language-independent, concept-like representation format is more beneficial to enhance cross-language retrieval performance.

Abstracting and Indexing↗
PubMed2006

[Abecedary of the "Annales". Part 10].

The terms included and detailed in the present part are: Kaplan-Meier estimate, prospective study, retrospective study, cross-sectional study.

Periodicals as Topic↗
PubMedDate not supplied

IAIMS and UMLS at Columbia-Presbyterian Medical Center.

The authors use an example to illustrate combining Integrated Academic Information Management System (IAIMS) components (applications) into an integral whole, to facilitate using the components simultaneously or in sequence. They examine a model for classifying IAIMS systems, proposing ways in which the United Medical Language System (UMLS) can be exploited them.

Computer Peripherals↗
PubMed2005

[Abecedary of the "Annales". Part 1].

The terms included and detailed in the present part are: protocol, alpha risk, (standardised) effect size, intention to treat analysis, linear multiple and logistic regressions, and sensitivity analysis.

Statistics as Topic↗
PubMed1991

Representation of clinical laboratory terminology in the Unified Medical Language System.

The Unified Medical Language System (UMLS) was examined to determine its coverage of clinical laboratory terminology in use at the Columbia-Presbyterian Medical Center (CPMC). The Metathesaurus (Meta-1) contains exact matches for 30% of 1460 CPMC laboratory terms and near matches for an additional 42%, with better coverage of atomic-level concepts ("substance" terms) than complex ones (tests and panels). The Semantic Network includes types for representing laboratory procedures (2), measured substances (at least 56) and sampled substances (at least 14), but no type to represent specimens. Few of the UMLS semantic relationships are applicable to the CPMC vocabulary. These results have implications for the utility of the UMLS for linking clinical databases to electronic medical information sources.

Clinical Laboratory Techniques↗
PubMedDate not supplied

[A glossary of the terms used in psychoanalysis].

The psychoanalytic direction in psychopathology is considered to be necessary as an explanation of concept and methodology for the medical training concerning the study and the care of mental diseases. Irrespective of certain controverted opinions on the fund of concepts of psychoanalysis the consideration of a strict terminology belonging to this direction is necessary. In this respect a concise explanation of the meanings of a set of terms in the comments on some psychopathological states is useful.

Psychoanalysis↗