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Biomedical subjects

Y Shahar

Publications and source records attributed to Y Shahar.

5 recordsLinked to original sources
PubMed1992

A temporal-abstraction system for patient monitoring.

RESUME is a system that performs temporal abstraction of time-stamped data. RESUME is based on a model of three temporal-abstraction mechanisms: point temporal abstraction (a mechanism for abstracting values of several parameters into a value of another parameter); temporal inference (a mechanism for inferring sound logical conclusions over a single interval or two meeting intervals); and temporal interpolation (a mechanism for bridging nonmeeting temporal intervals). Making explicit the knowledge required for temporal abstraction supports the acquisition of that knowledge.

Artificial Intelligence↗
PubMed1991

Temporal-abstraction mechanisms in management of clinical protocols.

We have identified several general temporal-abstraction mechanisms needed for reasoning about time-stamped data, such as are needed in management of patients being treated on clinical protocols: simple temporal abstraction (a mechanism for abstracting several parameter values into one class), temporal inference (a mechanism for inferring sound logical conclusions over a single interval or two meeting intervals), and temporal interpolation (a mechanism for bridging non-meeting temporal intervals). Making explicit the knowledge required for temporal abstractions supports the acquisition of planning knowledge, the identification of clinical problems, and the formulation of clinical-management-plan revisions.

Clinical Protocols↗
PubMed1991

Changes in smoking patterns in young military recruits in relationship to psychosocial characteristics.

We followed 295 young infantry recruits during their first 14 weeks of basic training. The prevalence of smoking increased by 50%. About half of this increase was accounted for by ex-smokers, 57% of whom had resumed the habit. Average education and military psychometric measures of both the baseline smokers and the new smokers were significantly lower than those of the abstaining never-smokers. Asian and North African origin and a lower peer group evaluation score were also risk factors. These relationships were not demonstrated among resuming ex-smokers. The rise in the smoking rate accounts for most of the known rise during full military service. We suggest early preventive measures, especially for the two groups at risk.

Adolescent↗