Intelligence Semantics

Herbert Dawid's Adaptive Learning by Genetic Algorithms: Analytical Results PDF

By Herbert Dawid

ISBN-10: 354061513X

ISBN-13: 9783540615132

ISBN-10: 3662002116

ISBN-13: 9783662002117

This ebook considers the training habit of Genetic Algorithms in fiscal platforms with mutual interplay, like markets. Such platforms are characterised via a country established health functionality and for the 1st time mathematical effects characterizing the long term end result of genetic studying in such structures are supplied. numerous insights in regards to the impression of using various genetic operators, coding mechanisms and parameter constellations are won. The usefulness of the derived effects is illustrated through plenty of simulations in evolutionary video games and monetary versions.

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Additional resources for Adaptive Learning by Genetic Algorithms: Analytical Results and Applications to Economical Models

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This effect can also be observed in this model. 32 2. Bounded Rationality and Artificial Intelligence Starting with initially uncorrelated prices the spatial market develops towards a situation where cartels of adjacent high pricing firms emerge. Cartels of the same shape but different sizes appear regularly in different places of the space. Subsequently these cartels shrink and disappear as the firms at the edge of the cartel always change to the competitive price. Similar results with even more preserving cartel building could be observed in models with different reaction functions.

Obviously one of the most desirable feature of the simulations with artificially intelligent agents is the explicit representation of every individual in the population. Contrary to the econometric learning rules it is basically possible to build a heterogeneous population of agents who do not only differ in their strategies, but also in their learning behavior. An example for such a population is given for example in Beltrati and Margarita [13] and we will provide another one in chapter 5. We think that this feature is very important, for it is by no means clear why different individuals which are assumed to act differently as a member of the economic system have to use the same rule in order to build expectations or update their strategies.

Bounded Rationality and Artificial Intelligence C C C C C C D C C 0 0 0 fictitious'" history , C C C C D C C C D C D D C D D C D D D D 1 0 0 0 D C D D D D D l~to,y '" action Fig. 8. An example of the Axelrod like encoding of a strategy in the IPD. The action part of the string contains 64 bits payoff against these eight strategies was in many cases very similar to the average payoff against the whole population. Axelrod used these eight strategies as an environment for a genetic algorithm in order to learn strategies in the IPD (Axelrod [10]).

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Adaptive Learning by Genetic Algorithms: Analytical Results and Applications to Economical Models by Herbert Dawid


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