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רכזות ההסמכה שלנו עומדות לרשותכם
רביד ישראל : me.ug.ad@technion.ac.il
רותם שפירא : me.teach.ad@technion.ac.il

א’-ה’: 15:30 – 8:30

Interpreting Averages

Location: הסמינר יועבר באמצעות הזום : https://technion.zoom.us/j/98780263959
מרצה: פרופסור יעקב בן חיים
2:30 pm

Averages are measured in many circumstances for diagnostic, predictive, or surveillance purposes. Examples include: average stress along a beam, average speed along a section of highway, average alcohol consumption per month, average GDP over a large region, a student’s average grade over 4 years of study. However, the average value of a variable reveals little about fluctuations of the variable along the path that is averaged. Extremes – stress concentrations, speeding violations, binge drinking, poverty and wealth, intellectual incompetence in particular topics – may be more significant than the average. The analyst who designs and employs the average can choose the path length for averaging, and the performance requirements for diagnosis, prediction or warning. This talk explores the choice of path length and performance requirements to achieve robustness against uncertainty when interpreting an average, in face of uncertain fluctuations of the averaged variable. Extremes are not observed, but robustness against those extremes enhances the ability to interpret the observed average despite the uncertainty. Several specific examples are developed, and we derive generic propositions based on info-gap decision theory.

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