Wilson (1990) Perception redux. Emergence of structure

Conf. on Genetic Algorithms, J. Grefenstette, ed. ... and E. Rosenfeld, Neurocomputing: Foundations of Research (MIT Press, ... Press, Cambridge, MA, 1969).
34KB taille 3 téléchargements 289 vues
Wilson

15

000### 000### 001### 001### 01#0## 01#1## 10##0# 10##1# 10##1# 11###0 11###1

-.244 -.244 +.269 +.269 -.424 +.410 -.441 +.262 +.262 -.399 +.487

0##0## 0111## 1####0 101### 11##10

-.063 +.104 -.087 -.003 -.084

Perceptron Redux

Reflect DNF terms of F6 and its complement.

Other predicates. Note small weights.

Figure 5. Evolved predicates (left column) from a chromosome in one of the populations of Figure 4. Weights (right column) are after training.

Wilson

14

Perceptron Redux

Population Average Score (%)

Performance 100 90 80 70 60 50

0 20 40 60 80 Chromosome Evaluations (100s)

Figure 4. Population performance. Average over the population of the score of each chromosome’s perceptron on the last 40 of 100 training trials versus number of chromosome evaluations. Curve averages over three runs, each starting with a different random initial population.

Wilson

13

Perceptron Redux

i