Behavioral and Brain Sciences

Short Communication

Exhuming similarity

Dedre Gentner a1
a1 Psychology Department, Northwestern University, Evanston, IL 60208


Tenenbaum and Griffiths' paper attempts to subsume theories of similarity – including spatial models, featural models, and structure-mapping models – into a framework based on Bayesian generalization. But in so doing it misses significant phenomena of comparison. It would be more fruitful to examine how comparison processes suggest hypotheses than to try to derive similarity from Bayesian reasoning. [Shepard; Tenenbaum & Griffiths]