https://github.com/kach/memo

A probabilistic programming language for metacognitive modeling
https://github.com/kach/memo

cognitive-science differentiable-programming jax probabilistic-programming python

Last synced: 25 days ago
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A probabilistic programming language for metacognitive modeling

• Host: GitHub
• URL: https://github.com/kach/memo
• Owner: kach
• License: mit
• Created: 2024-05-03T04:31:42.000Z (almost 2 years ago)
• Default Branch: main
• Last Pushed: 2026-01-14T13:54:01.000Z (27 days ago)
• Last Synced: 2026-01-14T17:35:15.946Z (27 days ago)
• Topics: cognitive-science, differentiable-programming, jax, probabilistic-programming, python
• Language: Python
• Homepage: https://pypi.org/project/memo-lang/
• Size: 42.5 MB
• Stars: 132
• Watchers: 5
• Forks: 12
• Open Issues: 8
• Metadata Files:
  • Readme: README-pypi.md
  • License: LICENSE

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README

          
![memo's logo](https://github.com/kach/memo/raw/main/assets/logo.png)

[memo](https://github.com/kach/memo) is a probabilistic programming language for expressing computational cognitive models involving **recursive reasoning about reasoning**. memo inherits from the tradition of WebPPL-based Bayesian modeling (see [probmods](http://probmods.org/), [agentmodels](https://agentmodels.org/), and [problang](https://www.problang.org/)), but aims to make models **easier to write and run** by taking advantage of modern programming language techniques and hardware capabilities (including GPUs!). As a result, models are often significantly simpler to express (we've seen codebases shrink by a **factor of 3x or more**), and dramatically faster to execute and fit to data (we've seen **speedups of 3,000x or more**). In idiomatic memo, a POMDP solver is 15 lines of code, and is just as fast as a hand-optimized solver written in 200 lines of code.

memo stands for: mental modeling, memoized matrix operations, model-expressed-model-optimized, and metacognitive memos.

For more information, please visit memo's [GitHub repository](https://github.com/kach/memo).