神经超统计学用于动态认知模型的贝叶斯估计.
Lukas Schumacher1, Paul-Christian Bürkner2, Andreas Voss3
1Institute of Psychology, Heidelberg University, Heidelberg, Germany. lukas.schumacher@psychologie.uni-heidelberg.de.
Scientific reports
|August 23, 2023
概括
人类的认知是动态的,所以我们开发了一种深度学习方法来模拟认知过程中的时间变化. 这种方法准确地捕捉动态参数,揭示关键的时间信息,常常被静态模型遗漏.
科学领域:
- 认知科学 认知科学
- 计算神经科学是一种神经科学.
- 机器学习 机器学习
背景情况:
- 传统的认知数学模型往往缺乏记忆,忽视参数波动,无法捕捉到人类认知的动态性质.
- 在复杂模型中估计时间变化的参数的现有方法在计算上可能具有挑战性.
研究的目的:
- 使用超统计学视角,以时间维度增强机械认知模型.
- 开发和验证基于模拟的深度学习方法,用于动态认知模型的贝叶斯推理.
主要方法:
- 提出了一个等级模型,其中包括一个低级观察模型和一个高级过渡模型,描述参数随着时间推移的演变.
- 开发了一个基于模拟的深度学习方法,用于贝叶斯推理来估计时间变化和时间不变的参数.
- 将深度学习方法与用于估计时间变化的参数的现有框架进行了基准测试.
主要成果:
- 深度学习方法有效地捕获了动态扩散决策模型的时间动态,适合人类响应时间数据.
- 该方法成功地恢复了时间变化和时间不变的参数.
- 结果表明,假设静态参数会掩盖认知过程中重要的时间信息.
结论:
- 开发的深度学习方法为复杂,动态的认知模型中的贝叶斯推理提供了一个有效的工具.
- 纳入时间维度和估计动态参数对于准确理解人类认知至关重要.
- 认知建模中的静态参数假设可能导致关于认知动态的重大信息丢失.
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