In applications there occur different forms of uncertainty. The twomost important types are randomness (stochastic variability) and imprecision(fuzziness). In modelling, the dominating concept to describe uncertainty isusing stochastic models which are based on probability. However, fuzzinessis not stochastic in nature and therefore it is not considered in probabilisticmodels.Since many years t...

Methods for handling imprecision and uncertainty in computer-based analysis of fetal heart rate patterns and ECG wave shape during childbirth are presented. Computational intelligence models, based on fuzzy logic techniques, that explicitly handle the imprecision and uncertainty inherent in the data obtained during childbirth and methods of interpreting the data are proposed. The ability to han...

We can do everything. T What IS can do toady is highly limited. What we cannot do is Useless. R Useless confused with Cannot Be Done. So... why to worry about Uncertainty? U No future without using Uncertainty. T The Information Systems Radical. H The Uncertainty Zealot. Summary: This report surveys various forms of imperfect data, be it imprecision or uncertainty. To that end, a structured the...

A query against incomplete or imprecise data in a database1, or a query whose search conditions are imprecise can both result in answers that do not satisfy the query completely. Such queries can be broadly termed as imprecise queries. Today’s database systems are designed largely for precise queries against a database of precise and complete data. Range queries (e.g., Age BETWEEN 20 AND 30) an...

We evaluated sources of imprecision in screening assays for congenital hypothyroidism performed between 1979 and 1987 by more than 45 laboratories participating in the national Neonatal Screening Standardization Program offered by the Centers for Disease Control. Reported concentrations were available from approximately 70,000 enriched dried-blood spot samples for thyroxin and thyrotropin, the ...

The allowable imprecision for laboratory tests has been estimated from criteria based on clinical and analytical test outcome. The analytical outcome criteria studied are the Clinical Laboratory Improvement Amendments (CLIA) criteria for proficiency testing. The clinical outcome criteria are estimates of medically significant changes in test results taken from a study in the literature. The est...

BACKGROUND Detection of cobalamin deficiency is increasingly important, and methylmalonic acid (MMA) appears to be a useful marker. Information on interlaboratory variation and on methodological differences for MMA in serum and plasma is limited. METHODS Using gas chromatography/mass spectrometry, 13 laboratories participated in a 2-day analysis of 8 serum and 11 EDTA-plasma specimens. Result...

Abstract Convexity is a deeply studied concept since it very useful in many fields of mathematics, like optimization. When we deal with imprecision, the convexity required as well and some important applications can be found fuzzy optimization, particular sets. In this paper have extended notion for interval-valued sets order to able cover wider area imprecision. We show its interesting propert...