COGS 100 Study Guide - Final Guide: Artificial Neural Network, Perceptron, Expert System

• School: Queen's University
• Department: Cognitive Science
• Course: COGS 100
• Professor: Farhana Zulkernine

Document Summary

Rule based systems: examples of a pss are gps and expert systems. Input/info is coded in symbolic form: symbolic form: data is represented using different formats, and can be made accessible through symbols (formal logic) Symbols are then manipulated by operations which are defined by rules i. e. gps rules for definition for sub-goals and creating plans. Operations are serial; only one at a time, but rapidly and repeatedly if necessary. O(cid:373)e ps(cid:455)(cid:272)hologi(cid:272)al p(cid:396)o(cid:272)esses a(cid:396)e auto(cid:373)ati(cid:272) a(cid:374)d u(cid:374)(cid:272)o(cid:374)s(cid:272)ious, the(cid:396)efo(cid:396)e we do(cid:374)"t k(cid:374)ow how to simulate them: difficult to specify rules for these kinds of behavior. It cannot combine top-down knowledge with bottom-up perceived info. Combines info from memory and perceptual input to generate a perceptual decision. Different algorithms and representations are needed in order to deal with these processes. Pitts and mccullogh proposed the first ann model in 1943. Artificial neurons are simple computational model of brain neurons. No weights were associated in the links in the initial model.