Learning the non-physics part of Statistical Mechanics

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Discussion Overview

The discussion revolves around the relationship between statistical mechanics and machine learning, particularly focusing on whether one can effectively learn the computational and mathematical aspects of statistical mechanics without a background in physics. Participants explore the connections between the two fields and the relevance of statistical mechanics concepts to machine learning.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant questions the feasibility of learning statistical mechanics without prior physics knowledge, suggesting that a foundational understanding of physics might be beneficial.
  • Another participant seeks clarification on the specific connections between machine learning and statistical physics, particularly in relation to neural networks.
  • Examples are provided indicating that statistical physics tools can analyze learning algorithms and suggest new approaches, referencing works by Watkin et al. (1993) and discussing the use of Ising Models and Spin Glass Models in machine learning.
  • A participant expresses uncertainty about whether the applications discussed are from statistical mechanics to neural networks or vice versa, suggesting that the latter might be the case.
  • One participant asserts that a proper physics background is essential for learning statistical mechanics and claims that introductory courses in statistical mechanics contain little machine learning content.
  • Another participant proposes that the non-physics aspects of statistical mechanics could simply be statistics, questioning the distinction between the two fields.
  • Suggestions are made to explore materials specifically focused on the statistical mechanics of neural networks, rather than traditional physics texts.
  • Another participant reiterates the idea that the non-physics part of statistical mechanics is essentially statistics, expressing interest in finding texts that bridge the two fields.

Areas of Agreement / Disagreement

Participants express differing views on the necessity of a physics background for studying statistical mechanics in relation to machine learning. Some argue that a physics foundation is crucial, while others suggest that the statistical aspects may be sufficient. The discussion remains unresolved regarding the best approach to learning these concepts.

Contextual Notes

There are indications of differing interpretations of the relationship between statistical mechanics and machine learning, particularly concerning the direction of application. Additionally, the terminology and foundational concepts in statistical physics may not align with modern probability theory and statistics, leading to potential misunderstandings.

ANewPope23
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Hello, this is my first question on PhysicsForum. I am primarily interested in statistics/machine learning. I have recently discovered that many of the ideas used in machine learning came from statistical physics/ statistical mechanics.

I am just wondering if it's a bad idea to attempt to learn the computational/mathematical aspects of statistical mechanics with zero physics background? Maybe it's easier to learn some physics before attempting this?
 
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I associate machine learning with neural networks, pattern recognition, etc. Can you be more specific about how machine learning is related to statistical physics/ statistical mechanics?
 
Here are some examples:

"According to Watkin et al. (1993), statistical physics tools are not only well suited to analyze existing learning algorithms but also they may suggest new approaches. In the paradigm of learning from examples (the paradigm considered in this book), examples are drawn from some unknown but fixed probability distribution and, once chosen, constitute a static quenched disorder (Watkin et al., 1993)."

"Statistical Physics and Representations in Real and Artificial Neural Networks" https://arxiv.org/abs/1709.02470

https://arxiv.org/pdf/1706.09779.pdf Ising Models and Spin Glass Models are used in machine learning.
 
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I can't tell if these are applications of statistical mechanics in the field of neural networks or the reverse -- applications of deep neural networks in the field of statistical mechanics. It looks more like the latter to me, which I could imagine and Google shows several articles along those lines.

If it is true that they are applications of deep neural networks in the field of statistical mechanics, then you may be making a mistake in trying study statistical mechanics to help you understand machine learning.
 
No one can learn statistical mechanics without a proper physics background. Besides, the amount of machine learning in a typical statistical mechanics introductory course is close to zero.
If you are interested in machine learning, you should learn machine learning.
 
Isn't the non-physics part of statistical mechanics just... statistics?
 
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boneh3ad said:
Isn't the non-physics part of statistical mechanics just... statistics?

If you find a text where it is, I'd like to know about it. Random variables "sample spaces" (or "probability spaces"), estimators, probability models - all familiar things when problems are presented in the context of statistics don't appear in the expositions of statistical physics that I've seen. There is traditional terminology in statistical physics that predates (and overcomes) the terminology of modern probability theory and statistics.
 

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