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1 change: 1 addition & 0 deletions .github/workflows/publish-book.yml
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Expand Up @@ -19,6 +19,7 @@ jobs:
- name: Install dependencies
run: |
python -m pip install --upgrade pip
python -m pip install -e .
python -m pip install .[docs]
pip install jupyter-book sphinxcontrib-mermaid

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2 changes: 1 addition & 1 deletion .gitignore
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Expand Up @@ -8,7 +8,7 @@ __pycache__/

# Distribution / packaging
.Python
build/
_build/
develop-eggs/
dist/
downloads/
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201 changes: 201 additions & 0 deletions LICENSE
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@@ -0,0 +1,201 @@
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7 changes: 4 additions & 3 deletions Makefile
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Expand Up @@ -24,14 +24,15 @@ interrogate:

docs:
export PYTHONPATH=$(pwd)
jupyter-book build docs
jupyter-book build .

docs-touch:
export PYTHONPATH=$(pwd)
find docs/docs -iname '*.md' -exec touch {} \;
jupyter-book build docs/docs
jupyter-book build .

docs-strict:
jupyter-book build docs --keep-going --strict
jupyter-book build . --keep-going --strict

# Serve the docs
serve_docs:
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107 changes: 63 additions & 44 deletions README.md
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@@ -1,15 +1,35 @@
# CEBRA-Lens: a helper package for interpretable latent spaces
<img src="figures/zebra.png" alt="zebra" width="200" height="194">
# CEBRA-Lens

What is CEBRA-Lens?
## A python library for mechanistic interpretability of CEBRA models

This Python codebase allows for neural representation analysis of CEBRA models. It contains tools to help answer the question: **What representations is my model learning?** We can get a glimpse of what the models learn by looking at the NN units themselves after the model is trained, using “neuroscientist methods” such as CKA, PCA/tSNE (See Sandbrink et al 2023). Precisely these "neuroscientist methods" are implemented in this codebase.
<img src="_static/zebra.png" title="cebra-lens" alt="cebra-lens" width="150" align="right" vspace = "80"/>

The current version of CEBRA-Lens supports specific analysis on the Allen Institute visual coding dataset ([DeVries et al, Nature Neuro., 2020](https://www.nature.com/articles/s41593-019-0550-9)) and Hippocampus dataset ([Grosmark & Buzáki, Science, 2016](https://www.science.org/doi/full/10.1126/science.aad1935)), and for general analysis on other datasets.
**CEBRA-Lens** is a Python library for analyzing and interpreting neural representations learned by models trained with [CEBRA](https://github.com/AdaptiveMotorControlLab/cebra). It provides tools for mechanistic interpretability, allowing users to probe, visualize, and understand the structure of learned embeddings. The library is designed to support in-depth analysis of representational geometry, feature selectivity, and latent space dynamics in neuroscience and beyond. 👋 We welcome contributions and will continue to expand the library in the coming years.

## 🔍 Analysis
[🦓🔎 CEBRA Lens](https://github.com/AdaptiveMotorControlLab/CEBRA-lens)

Implemented "neuroscientist methods" for neural representation analysis are presented below.
## 🛠️ Quick start

🚨 Make sure that the environment in which you trained the CEBRA models in **has the same torch version** as the environment used for CEBRA-Lens.

```{Hint} Familiar with python packages and conda? Quick Install Guide:
```bash
conda create -n CEBRAlens python=3.12
conda activate CEBRAlens
conda install -c conda-forge pytables==3.8.0

# install PyTorch with your desired CUDA version (or for CPU only)- check their website: https://pytorch.org/get-started/locally/
# example: GPU version of pytorch for CUDA 11.3
conda install pytorch cudatoolkit=11.3 -c pytorch

# install CEBRA and CEBRA-lens
pip install --pre 'cebra[datasets,demos]'
pip install -- cebra_lens
```

## 🦓🔍 Analysis Methods

Implemented mechanistic interpretability methods for neural representation analysis are presented below.

### Model performance analysis

Expand Down Expand Up @@ -45,33 +65,11 @@ These analyses quantify the change in the distance calculated per layer in a mod
- inter-class distance
- inter-repetition distance (only relevant if the model was trained on a dataset where there is repeating stimuli)

<img src="figures/analysis.png" alt="analysis">

## 📚 Codebase folder structure

Below is the folder structure of the repository with the main folder and files. The `cebra_lens` folder contains all the code for the analysis with the metric class definitions in the `quantification` folder, the `demos` folder contains the usage jupyter notebooks and finally there is a `tests` folder which contains some pytest for the repo.

CEBRA_lens/
├── README.md
├── cebra_lens/
│ ├── quantification/
│ │ ├── base.py
│ │ ├── cka_metric.py
│ │ ├── decoding.py
│ │ ├── distance.py
│ │ ├── misc.py
│ │ ├── rdm_metric.py
│ │ └── tsne.py
│ ├── activations.py
│ ├── matplotlib.py
│ ├── utils_allen.py
│ ├── utils_hpc.py
│ └── utils.py
├── demos/
│ ├── UsageDemoVISUAL.ipynb
│ └── UsageDemoGENERAL.ipynb
└── tests/
<img src="_static/abstractfig.png" alt="analysis">

# Demo

The current version of CEBRA-Lens supports specific analysis on the Allen Institute visual coding dataset ([DeVries et al, Nature Neuro., 2020](https://www.nature.com/articles/s41593-019-0550-9)) and Hippocampus dataset ([Grosmark & Buzáki, Science, 2016](https://www.science.org/doi/full/10.1126/science.aad1935)), and for general analysis on other datasets. See the example notebooks we provide.

## 📊Usage

Expand All @@ -97,12 +95,23 @@ fig = lens.plot_metric(
)
```

The full demonstration of the usage is in the form of 2 jupyter notebooks:
- UsageDemoVISUAL: analysis on the Allen visual dataset, [here](https://github.com/AdaptiveMotorControlLab/CEBRA-lens/blob/eloise/tests/demos/UsageDemoVISUAL.ipynb)
- UsageDemoGENERAL: analysis on the Hippocampus dataset, but without specific dataset functions, [here](https://github.com/AdaptiveMotorControlLab/CEBRA-lens/blob/eloise/tests/demos/UsageDemoGENERAL.ipynb)
### Jupyter Notebooks

- UsageDemoVISUAL: analysis on the Allen visual dataset, [here](https://github.com/AdaptiveMotorControlLab/CEBRA-lens/blob/main/demos/UsageDemoVISUAL.ipynb).
- UsageDemoGENERAL: analysis on the Hippocampus dataset, but without specific dataset functions, [here](https://github.com/AdaptiveMotorControlLab/CEBRA-lens/blob/main/demos/UsageDemoGENERAL.ipynb).

These two notebooks showcase the different approach when analyzing a pre-defined dataset and a non-defined dataset.


# Acknowledgements

- This repository contains the code for [Eloise's](https://github.com/eloisehabek) semester's project "Engineering software for neural representation analysis"(SPRING 2025),
building on [Riccardo's](https://github.com/riccardoprog) semester project "Exploring nonlinear encoders for robust vision decoding" (FALL 2024).
- The work was supervised by [Célia Benquet](https://github.com/CeliaBenquet) and [Mackenzie Mathis](https://github.com/MMathisLab) at the Mathis Laboratory of Adaptive Intelligence.
- We thank the [DeepDraw project](https://elifesciences.org/articles/81499) for some [source code](https://github.com/amathislab/DeepDraw) and analysis methods.

# Other helpful tips:

## 📥 Download dataset

The `utils.py` file contains a overarching `get_data` function which checks for a pre-defined dataset label and accordingly loads the data based on specific functions for the dataset. If you want to load data from a non-defined dataset, you need to first import the loading function inside the `utils.py` file as so:
Expand All @@ -116,14 +125,24 @@ elif dataset_label == "new_dataset":
```
This is briefly repeated in the usage demo notebooks.

## 🛠️ Environment set-up
# Contributing Guide

Make sure that the environment in which you trained the CEBRA models in has the same torch version as the environmnet used for CEBRA-Lens.
1. **Fork the repository** and create a new branch:
```bash
git checkout -b your-feature-name
```

```
!pip install --pre 'cebra[datasets,demos]'
```
2. **Make your changes** and ensure they are well-tested and well-documented.

**Adaptation for use on CEBRA-Unified and xCEBRA models is needed for now.**
3. **Format your code** using `isort` and `yapf`:
```bash
isort .
yapf -i -p -r cebra_lens
yapf -i -p -r tests
```

Have fun!
or the `make` command:
```bash
make format
```
4. **Open a Pull Request** to the `main` branch with a clear description of your changes.
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