图 书 馆
压力和基因型对强化学习中勘探开发动态的影响Effects of Stress and Genotype on Exploration-Exploitation Dynamics in Reinforcement Learning |
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| 课程网址: | http://videolectures.net/otee06_luksys_esgee/ |
| 主讲教师: | Gedi Lukšys |
| 开课单位: | 洛桑联邦理工学院 |
| 开课时间: | 2007-02-25 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | Stress and genetic background regulate different aspects of behavioral learning through the action of stress hormones and neuromodulators. Similarly, in reinforcement learning (RL) models, exploitation-exploration factor and other meta-parameters control learning dynamics and performance. We found that many different measures of animal learning and performance can be reproduced by simple RL models using dynamic control of the meta-parameters. To study the effects of stress and genotype, we carried out 5-hole-box light conditioning and Morris water maze experiments with 2 different genetic strains of mice, exposing them to different stressors. Then, we used RL models to simulate their behavior. For each experimental session, we estimated a set of model meta-parameters that produced the best fit between the model and the animal performance. Exploration-exploitation factors had similar characteristic dynamics for the two simulated experiments, and there were statistically significant differences between different genetic strains and stress conditions. |
| 关 键 词: | 应激激素; 神经调节; 强化学习; 勘探开发因素; 统计学 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2020-06-02：毛岱琦(课程编辑志愿者) |
| 阅读次数: | 84 |