FYSM 1607 Lecture Notes - Lecture 9: Cognitive Deficit, Cluster Analysis, Menton

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Bo(cid:427)e(cid:568)t a. bes(cid:428)o(cid:568)la and allan b. wa(cid:469)ne(cid:568) de(cid:622)eloped the (cid:468)i(cid:568)st (cid:428)omputational model that in(cid:622)ol(cid:622)ed lea(cid:568)nin(cid:469) p(cid:568)o(cid:428)ess. The bes(cid:428)orla-wa(cid:469)ner model is a (cid:468)o(cid:568)mal model o(cid:468) the (cid:428)i(cid:568)(cid:428)umstan(cid:428)es unde(cid:568) (cid:623)hi(cid:428)h pa(cid:622)lo(cid:622)ian (cid:428)onditionin(cid:469) o(cid:428)(cid:428)u(cid:568)s. Blo(cid:428)kin(cid:469) o(cid:468) ne(cid:623) asso(cid:428)iations (cid:623)hen a ne(cid:623) stimulus is pai(cid:568)ed (cid:623)ith the al(cid:568)ead(cid:629) lea(cid:568)ned (cid:427)eha(cid:622)iou(cid:568) Conditioned inhi(cid:427)ition (cid:623)he(cid:568)e a stimulus is ne(cid:469)ati(cid:622)el(cid:629) asso(cid:428)iated (cid:623)ith a (cid:427)eha(cid:622)iou(cid:568) Ma(cid:428)hine learnin(cid:469) is the su(cid:427)(cid:468)ield o(cid:468) (cid:428)ompute(cid:568) s(cid:428)ien(cid:428)e that, a(cid:428)(cid:428)o(cid:568)din(cid:469) to a(cid:568)thu(cid:568) samuel in (cid:1487)(cid:1495)(cid:1491)(cid:1495), (cid:469)i(cid:622)es (cid:1657)(cid:428)ompute(cid:568)s the a(cid:427)ilit(cid:629) to lea(cid:568)n (cid:623)ithout (cid:427)ein(cid:469) e(cid:628)pli(cid:428)itl(cid:629) p(cid:568)o(cid:469)(cid:568)ammed. (cid:1658) It"s a s(cid:428)ien(cid:428)e that"s not ne(cid:623) - (cid:427)ut one that"s (cid:469)ainin(cid:469) (cid:468)(cid:568)esh momentum. The aim o(cid:468) supe(cid:568)(cid:622)ised ma(cid:428)hine lea(cid:568)nin(cid:469) is to (cid:427)uild a model that makes p(cid:568)edi(cid:428)tions (cid:427)ased on past kno(cid:623)led(cid:469)e. As adapti(cid:622)e al(cid:469)o(cid:568)ithms identi(cid:468)(cid:629) patte(cid:568)ns in data, a (cid:428)ompute(cid:568) (cid:1657)lea(cid:568)ns(cid:1658) (cid:468)(cid:568)om the past o(cid:427)se(cid:568)(cid:622)ations. Then (cid:623)hen e(cid:628)posed to mo(cid:568)e o(cid:427)se(cid:568)(cid:622)ations, the (cid:428)ompute(cid:568) imp(cid:568)o(cid:622)es its p(cid:568)edi(cid:428)ti(cid:622)e pe(cid:568)(cid:468)o(cid:568)man(cid:428)e.

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