改进最小自由能量原则,以最大信息效率原则
Chenguang Lu1,2
1Intelligence Engineering and Mathematics Institute, Liaoning Technical University, Fuxin 123000, China.
Entropy (Basel, Switzerland)
|July 29, 2025
概括
这项研究引入了语义变量贝叶斯学 (SVB) 和最大信息效率 (MIE) 原则,为理解大脑和行为与环境的协调提供了一个比原来的最小自由能量原则 (FEP) 更强大的框架.
科学领域:
- 神经科学是一个神经科学.
- 信息理论 信息理论
- 计算生物学 计算生物学
背景情况:
- 弗里斯顿的最小自由能量原理 (FEP) 基于变量贝叶斯式 (VB) 方法,表明大脑和行为与环境自我组织.
- FEP具有理论上的局限性,包括潜在的误解和局限性,仅限于概率函数.
研究的目的:
- 通过引入语义变量贝叶斯式 (SVB) 和最大信息效率 (MIE) 原则来解决FEP的局限性.
- 为了解大脑与环境的相互作用和积极推断提供一个更全面的框架.
主要方法:
- 介绍语义信息G理论和R(G) 函数,使用P-T概率框架.
- 逻辑贝叶斯推理的应用和R (G) 函数的分析.
- 理论分析和计算实验以验证拟议的SVB和MIE原则.
主要成果:
- 证明R - G = F - H{\displaystyle X{\displaystyle Y} ,其中F是变量自由能量 (VFE) 和H{\displaystyle X}Y是香农条件,挑战了不断下降F的概念.
- SVB被证明是一种可靠和简单的方法,用于隐性变量分析和主动推理.
- 澄清不同热力学系统中Shannon信息,语义信息,VFE,自由能量,exergy和条件之间的关系.
结论:
- 与FEP相比,SVB和MIE提供了进步,为生物系统中信息处理提供了更细致的理解.
- 拟议的原则提高了自由能源原则的解释性和适用性.
- 建议将深度学习方法与深度学习方法集成,以更广泛地应用MIE原则.
相关概念视频
The Carnot Cycle
3.2K
Converting work to heat is an irreversible process, and the purpose of a heat engine is to reverse the effect partially. Heat engines aim to increase the efficiency of the reversal, that is, maximize the work retrieved from heat. If the efficiency of a heat engine were 100%, it would imply reversing the process completely without introducing any other effect. Thus, it would violate the second law of thermodynamics.
What could be the theoretical limit to the efficiency of a heat engine? The...
What could be the theoretical limit to the efficiency of a heat engine? The...
3.2K
Gibbs Free Energy and Thermodynamic Favorability
7.0K
The spontaneity of a process depends upon the temperature of the system. Phase transitions, for example, will proceed spontaneously in one direction or the other depending upon the temperature of the substance in question. Likewise, some chemical reactions can also exhibit temperature-dependent spontaneities. To illustrate this concept, the equation relating free energy change to the enthalpy and entropy changes for the process is considered:
7.0K
Gibbs Free Energy
34.4K
One of the challenges of using the second law of thermodynamics to determine if a process is spontaneous is that it requires measurements of the entropy change for the system and the entropy change for the surroundings. An alternative approach involving a new thermodynamic property defined in terms of system properties only was introduced in the late nineteenth century by American mathematician Josiah Willard Gibbs. This new property is called the Gibbs free energy (G) (or simply the free...
34.4K
Entropy Change in Reversible Processes
2.7K
In the Carnot engine, which achieves the maximum efficiency between two reservoirs of fixed temperatures, the total change in entropy is zero. The observation can be generalized by considering any reversible cyclic process consisting of many Carnot cycles. Thus, it can be stated that the total entropy change of any ideal reversible cycle is zero.
The statement can be further generalized to prove that entropy is a state function. Take a cyclic process between any two points on a p-V diagram.
The statement can be further generalized to prove that entropy is a state function. Take a cyclic process between any two points on a p-V diagram.
2.7K
Entropy within the Cell
11.4K
A living cell's primary tasks of obtaining, transforming, and using energy to do work may seem simple. However, the second law of thermodynamics explains why these tasks are harder than they appear. None of the energy transfers in the universe are completely efficient. In every energy transfer, some amount of energy is lost in a form that is unusable. In most cases, this form is heat energy. Thermodynamically, heat energy is defined as the energy transferred from one system to another that...
11.4K
Entropy and the Second Law of Thermodynamics
3.2K
The second law of thermodynamics can be stated quantitatively using the concept of entropy. Entropy is the measure of disorder of the system.
The relation between entropy and disorder can be illustrated with the example of the phase change of ice to water. In ice, the molecules are located at specific sites giving a solid state, whereas, in a liquid form, these molecules are much freer to move. The molecular arrangement has therefore become more randomized. Although the change in average...
The relation between entropy and disorder can be illustrated with the example of the phase change of ice to water. In ice, the molecules are located at specific sites giving a solid state, whereas, in a liquid form, these molecules are much freer to move. The molecular arrangement has therefore become more randomized. Although the change in average...
3.2K


