PSY 341 Lecture Notes - Lecture 22: List Of Fallacies, Probability Theory, Competitive Learning
8 Dec 2016
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Test for attribute weighting: prototype and exemplar models predictions. No mechanism for weighting rapid breathing as 2x more important in either category. Both predict p-medium better than p-low + weighted attribute. P-breath easier to categorize than p-skin or p-eyes confirmed. Conclusions: people seem to weigh some attributes more heavily than others in classification. Ex: fever and spots equally present in measles but rash is much more strongly weighted in diagnosis: attribute weighting can override the overall number of matches to exemplars or closeness to prototype. Challenges for both prototype and exemplar models. Correlated attributes: attributes are correlated when the value of one feature predicts the value of another. Renate -> cordate: people attend to correlations if they make sense, given their world view. Real world example from 16th and 17th century: no theory of germs as disease carriers. Good air -> no malaria: burlosis training set. Correlation also makes sense given what we know about weight loss and weight gain.
