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Basics of Kolmogorov-Arnold Networks (KAN)

This repo contains notebooks with toy examples to build intuitive understanding of Kolmogorov-Arnold Networks (KAN). The repo contains a series of Jupyter notebooks to explore concepts and code to build KANs, designed to build your understanding of KANs gradually, starting from the basics of B-splines used as activation functions and progressing through more complex scenarios including symbolic regression.

Original paper: Liu et al. 2024, KAN: Kolmogorov-Arnold Networks

Original repository: Prateek Gupta

About the Tutorials

With the help of toy examples, notebooks are structured to help in understanding both the theoretical underpinnings and practical applications of KANs.

  1. B-Splines for KAN:

    • Understanding the mathematical construction of B-splines.
    • Exploring how B-splines are used for functional approximation.
  2. Deeper KANs

    • Constructing and understanding [1, 1, 1, ..., 1] KAN configurations.
    • Implementing and exploring backpropagation through stacked splines.
  3. Grid Manipulation in KANs

    • How to expand model's capacity through grid manipulation.
    • How KANs prevent catastrophic forgetting in continual learning?
  4. Symbolic Regression using KANs

    • Training KANs with fixed symbolic activation functions.
    • Understanding the implications of symbolic regression within neural networks.

Prerequisites

To follow these tutorials, you should have a basic understanding of machine learning concepts and be familiar with Python programming. Experience with PyTorch and Jupyter Notebooks is also recommended.

Setup (Windows, macOS, Linux)

Follow these steps to run the notebooks:

Option A: Using conda (recommended)

  1. Install Miniconda or Anaconda
  2. From the project root, create the environment:
conda env create -f environment.yml
  1. Activate the environment:
conda activate kan-tutorial
  1. (Optional) Create a .env from the example and adjust as desired:
copy example.env .env # on Windows# cp example.env .env # on macOS/Linux
  1. Launch JupyterLab:
jupyter lab

Option B: Using pip + venv

  1. Create and activate a virtual environment:
python -m venv .venv
# Windows
.\.venv\Scripts\activate
# macOS/Linux# source .venv/bin/activate
  1. Install requirements:
pip install -r requirements.txt
  1. (Optional) Copy environment example:
copy example.env .env # on Windows# cp example.env .env # on macOS/Linux
  1. Start JupyterLab:
jupyter lab

Notes

  • The notebooks and utils.py use torch, numpy, and matplotlib.
  • The provided environment.yml pins Python 3.10 and CPU-only PyTorch by default. If you have a CUDA-capable GPU, replace cpuonly with an appropriate CUDA package per PyTorch installation instructions.

Repositories of Interest

Original repository by Prateek Gupta. https://github.com/pg2455/KAN-Tutorial

FastKAN: Very Fast Kolmogorov-Arnold Network via Radial Basis Functions. https://github.com/ZiyaoLi/fast-kan

Efficient KAN: An Efficient Implementation of Kolmogorov-Arnold Network. https://github.com/Blealtan/efficient-kan

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Understanding Kolmogorov-Arnold Networks: A Tutorial Series on KAN using Toy Examples

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all
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}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
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Basics of Kolmogorov-Arnold Networks (KAN)

This repo contains notebooks with toy examples to build intuitive understanding of Kolmogorov-Arnold Networks (KAN). The repo contains a series of Jupyter notebooks to explore concepts and code to build KANs, designed to build your understanding of KANs gradually, starting from the basics of B-splines used as activation functions and progressing through more complex scenarios including symbolic regression.

Original paper: Liu et al. 2024, KAN: Kolmogorov-Arnold Networks

Original repository: Prateek Gupta

About the Tutorials

With the help of toy examples, notebooks are structured to help in understanding both the theoretical underpinnings and practical applications of KANs.

  1. B-Splines for KAN:

    • Understanding the mathematical construction of B-splines.
    • Exploring how B-splines are used for functional approximation.
  2. Deeper KANs

    • Constructing and understanding [1, 1, 1, ..., 1] KAN configurations.
    • Implementing and exploring backpropagation through stacked splines.
  3. Grid Manipulation in KANs

    • How to expand model's capacity through grid manipulation.
    • How KANs prevent catastrophic forgetting in continual learning?
  4. Symbolic Regression using KANs

    • Training KANs with fixed symbolic activation functions.
    • Understanding the implications of symbolic regression within neural networks.

Prerequisites

To follow these tutorials, you should have a basic understanding of machine learning concepts and be familiar with Python programming. Experience with PyTorch and Jupyter Notebooks is also recommended.

Setup (Windows, macOS, Linux)

Follow these steps to run the notebooks:

Option A: Using conda (recommended)

  1. Install Miniconda or Anaconda
  2. From the project root, create the environment:
conda env create -f environment.yml
  1. Activate the environment:
conda activate kan-tutorial
  1. (Optional) Create a .env from the example and adjust as desired:
copy example.env .env # on Windows# cp example.env .env # on macOS/Linux
  1. Launch JupyterLab:
jupyter lab

Option B: Using pip + venv

  1. Create and activate a virtual environment:
python -m venv .venv
# Windows
.\.venv\Scripts\activate
# macOS/Linux# source .venv/bin/activate
  1. Install requirements:
pip install -r requirements.txt
  1. (Optional) Copy environment example:
copy example.env .env # on Windows# cp example.env .env # on macOS/Linux
  1. Start JupyterLab:
jupyter lab

Notes

  • The notebooks and utils.py use torch, numpy, and matplotlib.
  • The provided environment.yml pins Python 3.10 and CPU-only PyTorch by default. If you have a CUDA-capable GPU, replace cpuonly with an appropriate CUDA package per PyTorch installation instructions.

Repositories of Interest

Original repository by Prateek Gupta. https://github.com/pg2455/KAN-Tutorial

FastKAN: Very Fast Kolmogorov-Arnold Network via Radial Basis Functions. https://github.com/ZiyaoLi/fast-kan

Efficient KAN: An Efficient Implementation of Kolmogorov-Arnold Network. https://github.com/Blealtan/efficient-kan

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Understanding Kolmogorov-Arnold Networks: A Tutorial Series on KAN using Toy Examples

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix"); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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Repository files navigation

Basics of Kolmogorov-Arnold Networks (KAN)

This repo contains notebooks with toy examples to build intuitive understanding of Kolmogorov-Arnold Networks (KAN). The repo contains a series of Jupyter notebooks to explore concepts and code to build KANs, designed to build your understanding of KANs gradually, starting from the basics of B-splines used as activation functions and progressing through more complex scenarios including symbolic regression.

Original paper: Liu et al. 2024, KAN: Kolmogorov-Arnold Networks

Original repository: Prateek Gupta

About the Tutorials

With the help of toy examples, notebooks are structured to help in understanding both the theoretical underpinnings and practical applications of KANs.

  1. B-Splines for KAN:

    • Understanding the mathematical construction of B-splines.
    • Exploring how B-splines are used for functional approximation.
  2. Deeper KANs

    • Constructing and understanding [1, 1, 1, ..., 1] KAN configurations.
    • Implementing and exploring backpropagation through stacked splines.
  3. Grid Manipulation in KANs

    • How to expand model's capacity through grid manipulation.
    • How KANs prevent catastrophic forgetting in continual learning?
  4. Symbolic Regression using KANs

    • Training KANs with fixed symbolic activation functions.
    • Understanding the implications of symbolic regression within neural networks.

Prerequisites

To follow these tutorials, you should have a basic understanding of machine learning concepts and be familiar with Python programming. Experience with PyTorch and Jupyter Notebooks is also recommended.

Setup (Windows, macOS, Linux)

Follow these steps to run the notebooks:

Option A: Using conda (recommended)

  1. Install Miniconda or Anaconda
  2. From the project root, create the environment:
conda env create -f environment.yml
  1. Activate the environment:
conda activate kan-tutorial
  1. (Optional) Create a .env from the example and adjust as desired:
copy example.env .env # on Windows# cp example.env .env # on macOS/Linux
  1. Launch JupyterLab:
jupyter lab

Option B: Using pip + venv

  1. Create and activate a virtual environment:
python -m venv .venv
# Windows
.\.venv\Scripts\activate
# macOS/Linux# source .venv/bin/activate
  1. Install requirements:
pip install -r requirements.txt
  1. (Optional) Copy environment example:
copy example.env .env # on Windows# cp example.env .env # on macOS/Linux
  1. Start JupyterLab:
jupyter lab

Notes

  • The notebooks and utils.py use torch, numpy, and matplotlib.
  • The provided environment.yml pins Python 3.10 and CPU-only PyTorch by default. If you have a CUDA-capable GPU, replace cpuonly with an appropriate CUDA package per PyTorch installation instructions.

Repositories of Interest

Original repository by Prateek Gupta. https://github.com/pg2455/KAN-Tutorial

FastKAN: Very Fast Kolmogorov-Arnold Network via Radial Basis Functions. https://github.com/ZiyaoLi/fast-kan

Efficient KAN: An Efficient Implementation of Kolmogorov-Arnold Network. https://github.com/Blealtan/efficient-kan

About

Understanding Kolmogorov-Arnold Networks: A Tutorial Series on KAN using Toy Examples

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms"); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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Repository files navigation

Basics of Kolmogorov-Arnold Networks (KAN)

This repo contains notebooks with toy examples to build intuitive understanding of Kolmogorov-Arnold Networks (KAN). The repo contains a series of Jupyter notebooks to explore concepts and code to build KANs, designed to build your understanding of KANs gradually, starting from the basics of B-splines used as activation functions and progressing through more complex scenarios including symbolic regression.

Original paper: Liu et al. 2024, KAN: Kolmogorov-Arnold Networks

Original repository: Prateek Gupta

About the Tutorials

With the help of toy examples, notebooks are structured to help in understanding both the theoretical underpinnings and practical applications of KANs.

  1. B-Splines for KAN:

    • Understanding the mathematical construction of B-splines.
    • Exploring how B-splines are used for functional approximation.
  2. Deeper KANs

    • Constructing and understanding [1, 1, 1, ..., 1] KAN configurations.
    • Implementing and exploring backpropagation through stacked splines.
  3. Grid Manipulation in KANs

    • How to expand model's capacity through grid manipulation.
    • How KANs prevent catastrophic forgetting in continual learning?
  4. Symbolic Regression using KANs

    • Training KANs with fixed symbolic activation functions.
    • Understanding the implications of symbolic regression within neural networks.

Prerequisites

To follow these tutorials, you should have a basic understanding of machine learning concepts and be familiar with Python programming. Experience with PyTorch and Jupyter Notebooks is also recommended.

Setup (Windows, macOS, Linux)

Follow these steps to run the notebooks:

Option A: Using conda (recommended)

  1. Install Miniconda or Anaconda
  2. From the project root, create the environment:
conda env create -f environment.yml
  1. Activate the environment:
conda activate kan-tutorial
  1. (Optional) Create a .env from the example and adjust as desired:
copy example.env .env # on Windows# cp example.env .env # on macOS/Linux
  1. Launch JupyterLab:
jupyter lab

Option B: Using pip + venv

  1. Create and activate a virtual environment:
python -m venv .venv
# Windows
.\.venv\Scripts\activate
# macOS/Linux# source .venv/bin/activate
  1. Install requirements:
pip install -r requirements.txt
  1. (Optional) Copy environment example:
copy example.env .env # on Windows# cp example.env .env # on macOS/Linux
  1. Start JupyterLab:
jupyter lab

Notes

  • The notebooks and utils.py use torch, numpy, and matplotlib.
  • The provided environment.yml pins Python 3.10 and CPU-only PyTorch by default. If you have a CUDA-capable GPU, replace cpuonly with an appropriate CUDA package per PyTorch installation instructions.

Repositories of Interest

Original repository by Prateek Gupta. https://github.com/pg2455/KAN-Tutorial

FastKAN: Very Fast Kolmogorov-Arnold Network via Radial Basis Functions. https://github.com/ZiyaoLi/fast-kan

Efficient KAN: An Efficient Implementation of Kolmogorov-Arnold Network. https://github.com/Blealtan/efficient-kan

About

Understanding Kolmogorov-Arnold Networks: A Tutorial Series on KAN using Toy Examples

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links"); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + '
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Repository files navigation

Basics of Kolmogorov-Arnold Networks (KAN)

This repo contains notebooks with toy examples to build intuitive understanding of Kolmogorov-Arnold Networks (KAN). The repo contains a series of Jupyter notebooks to explore concepts and code to build KANs, designed to build your understanding of KANs gradually, starting from the basics of B-splines used as activation functions and progressing through more complex scenarios including symbolic regression.

Original paper: Liu et al. 2024, KAN: Kolmogorov-Arnold Networks

Original repository: Prateek Gupta

About the Tutorials

With the help of toy examples, notebooks are structured to help in understanding both the theoretical underpinnings and practical applications of KANs.

  1. B-Splines for KAN:

    • Understanding the mathematical construction of B-splines.
    • Exploring how B-splines are used for functional approximation.
  2. Deeper KANs

    • Constructing and understanding [1, 1, 1, ..., 1] KAN configurations.
    • Implementing and exploring backpropagation through stacked splines.
  3. Grid Manipulation in KANs

    • How to expand model's capacity through grid manipulation.
    • How KANs prevent catastrophic forgetting in continual learning?
  4. Symbolic Regression using KANs

    • Training KANs with fixed symbolic activation functions.
    • Understanding the implications of symbolic regression within neural networks.

Prerequisites

To follow these tutorials, you should have a basic understanding of machine learning concepts and be familiar with Python programming. Experience with PyTorch and Jupyter Notebooks is also recommended.

Setup (Windows, macOS, Linux)

Follow these steps to run the notebooks:

Option A: Using conda (recommended)

  1. Install Miniconda or Anaconda
  2. From the project root, create the environment:
conda env create -f environment.yml
  1. Activate the environment:
conda activate kan-tutorial
  1. (Optional) Create a .env from the example and adjust as desired:
copy example.env .env # on Windows# cp example.env .env # on macOS/Linux
  1. Launch JupyterLab:
jupyter lab

Option B: Using pip + venv

  1. Create and activate a virtual environment:
python -m venv .venv
# Windows
.\.venv\Scripts\activate
# macOS/Linux# source .venv/bin/activate
  1. Install requirements:
pip install -r requirements.txt
  1. (Optional) Copy environment example:
copy example.env .env # on Windows# cp example.env .env # on macOS/Linux
  1. Start JupyterLab:
jupyter lab

Notes

  • The notebooks and utils.py use torch, numpy, and matplotlib.
  • The provided environment.yml pins Python 3.10 and CPU-only PyTorch by default. If you have a CUDA-capable GPU, replace cpuonly with an appropriate CUDA package per PyTorch installation instructions.

Repositories of Interest

Original repository by Prateek Gupta. https://github.com/pg2455/KAN-Tutorial

FastKAN: Very Fast Kolmogorov-Arnold Network via Radial Basis Functions. https://github.com/ZiyaoLi/fast-kan

Efficient KAN: An Efficient Implementation of Kolmogorov-Arnold Network. https://github.com/Blealtan/efficient-kan

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Understanding Kolmogorov-Arnold Networks: A Tutorial Series on KAN using Toy Examples

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default"); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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Repository files navigation

Basics of Kolmogorov-Arnold Networks (KAN)

This repo contains notebooks with toy examples to build intuitive understanding of Kolmogorov-Arnold Networks (KAN). The repo contains a series of Jupyter notebooks to explore concepts and code to build KANs, designed to build your understanding of KANs gradually, starting from the basics of B-splines used as activation functions and progressing through more complex scenarios including symbolic regression.

Original paper: Liu et al. 2024, KAN: Kolmogorov-Arnold Networks

Original repository: Prateek Gupta

About the Tutorials

With the help of toy examples, notebooks are structured to help in understanding both the theoretical underpinnings and practical applications of KANs.

  1. B-Splines for KAN:

    • Understanding the mathematical construction of B-splines.
    • Exploring how B-splines are used for functional approximation.
  2. Deeper KANs

    • Constructing and understanding [1, 1, 1, ..., 1] KAN configurations.
    • Implementing and exploring backpropagation through stacked splines.
  3. Grid Manipulation in KANs

    • How to expand model's capacity through grid manipulation.
    • How KANs prevent catastrophic forgetting in continual learning?
  4. Symbolic Regression using KANs

    • Training KANs with fixed symbolic activation functions.
    • Understanding the implications of symbolic regression within neural networks.

Prerequisites

To follow these tutorials, you should have a basic understanding of machine learning concepts and be familiar with Python programming. Experience with PyTorch and Jupyter Notebooks is also recommended.

Setup (Windows, macOS, Linux)

Follow these steps to run the notebooks:

Option A: Using conda (recommended)

  1. Install Miniconda or Anaconda
  2. From the project root, create the environment:
conda env create -f environment.yml
  1. Activate the environment:
conda activate kan-tutorial
  1. (Optional) Create a .env from the example and adjust as desired:
copy example.env .env # on Windows# cp example.env .env # on macOS/Linux
  1. Launch JupyterLab:
jupyter lab

Option B: Using pip + venv

  1. Create and activate a virtual environment:
python -m venv .venv
# Windows
.\.venv\Scripts\activate
# macOS/Linux# source .venv/bin/activate
  1. Install requirements:
pip install -r requirements.txt
  1. (Optional) Copy environment example:
copy example.env .env # on Windows# cp example.env .env # on macOS/Linux
  1. Start JupyterLab:
jupyter lab

Notes

  • The notebooks and utils.py use torch, numpy, and matplotlib.
  • The provided environment.yml pins Python 3.10 and CPU-only PyTorch by default. If you have a CUDA-capable GPU, replace cpuonly with an appropriate CUDA package per PyTorch installation instructions.

Repositories of Interest

Original repository by Prateek Gupta. https://github.com/pg2455/KAN-Tutorial

FastKAN: Very Fast Kolmogorov-Arnold Network via Radial Basis Functions. https://github.com/ZiyaoLi/fast-kan

Efficient KAN: An Efficient Implementation of Kolmogorov-Arnold Network. https://github.com/Blealtan/efficient-kan

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Understanding Kolmogorov-Arnold Networks: A Tutorial Series on KAN using Toy Examples

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Basics of Kolmogorov-Arnold Networks (KAN)

This repo contains notebooks with toy examples to build intuitive understanding of Kolmogorov-Arnold Networks (KAN). The repo contains a series of Jupyter notebooks to explore concepts and code to build KANs, designed to build your understanding of KANs gradually, starting from the basics of B-splines used as activation functions and progressing through more complex scenarios including symbolic regression.

Original paper: Liu et al. 2024, KAN: Kolmogorov-Arnold Networks

Original repository: Prateek Gupta

About the Tutorials

With the help of toy examples, notebooks are structured to help in understanding both the theoretical underpinnings and practical applications of KANs.

  1. B-Splines for KAN:

    • Understanding the mathematical construction of B-splines.
    • Exploring how B-splines are used for functional approximation.
  2. Deeper KANs

    • Constructing and understanding [1, 1, 1, ..., 1] KAN configurations.
    • Implementing and exploring backpropagation through stacked splines.
  3. Grid Manipulation in KANs

    • How to expand model's capacity through grid manipulation.
    • How KANs prevent catastrophic forgetting in continual learning?
  4. Symbolic Regression using KANs

    • Training KANs with fixed symbolic activation functions.
    • Understanding the implications of symbolic regression within neural networks.

Prerequisites

To follow these tutorials, you should have a basic understanding of machine learning concepts and be familiar with Python programming. Experience with PyTorch and Jupyter Notebooks is also recommended.

Setup (Windows, macOS, Linux)

Follow these steps to run the notebooks:

Option A: Using conda (recommended)

  1. Install Miniconda or Anaconda
  2. From the project root, create the environment:
conda env create -f environment.yml
  1. Activate the environment:
conda activate kan-tutorial
  1. (Optional) Create a .env from the example and adjust as desired:
copy example.env .env # on Windows# cp example.env .env # on macOS/Linux
  1. Launch JupyterLab:
jupyter lab

Option B: Using pip + venv

  1. Create and activate a virtual environment:
python -m venv .venv
# Windows
.\.venv\Scripts\activate
# macOS/Linux# source .venv/bin/activate
  1. Install requirements:
pip install -r requirements.txt
  1. (Optional) Copy environment example:
copy example.env .env # on Windows# cp example.env .env # on macOS/Linux
  1. Start JupyterLab:
jupyter lab

Notes

  • The notebooks and utils.py use torch, numpy, and matplotlib.
  • The provided environment.yml pins Python 3.10 and CPU-only PyTorch by default. If you have a CUDA-capable GPU, replace cpuonly with an appropriate CUDA package per PyTorch installation instructions.

Repositories of Interest

Original repository by Prateek Gupta. https://github.com/pg2455/KAN-Tutorial

FastKAN: Very Fast Kolmogorov-Arnold Network via Radial Basis Functions. https://github.com/ZiyaoLi/fast-kan

Efficient KAN: An Efficient Implementation of Kolmogorov-Arnold Network. https://github.com/Blealtan/efficient-kan

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Understanding Kolmogorov-Arnold Networks: A Tutorial Series on KAN using Toy Examples

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode"); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })();
Skip to content

Repository files navigation

Basics of Kolmogorov-Arnold Networks (KAN)

This repo contains notebooks with toy examples to build intuitive understanding of Kolmogorov-Arnold Networks (KAN). The repo contains a series of Jupyter notebooks to explore concepts and code to build KANs, designed to build your understanding of KANs gradually, starting from the basics of B-splines used as activation functions and progressing through more complex scenarios including symbolic regression.

Original paper: Liu et al. 2024, KAN: Kolmogorov-Arnold Networks

Original repository: Prateek Gupta

About the Tutorials

With the help of toy examples, notebooks are structured to help in understanding both the theoretical underpinnings and practical applications of KANs.

  1. B-Splines for KAN:

    • Understanding the mathematical construction of B-splines.
    • Exploring how B-splines are used for functional approximation.
  2. Deeper KANs

    • Constructing and understanding [1, 1, 1, ..., 1] KAN configurations.
    • Implementing and exploring backpropagation through stacked splines.
  3. Grid Manipulation in KANs

    • How to expand model's capacity through grid manipulation.
    • How KANs prevent catastrophic forgetting in continual learning?
  4. Symbolic Regression using KANs

    • Training KANs with fixed symbolic activation functions.
    • Understanding the implications of symbolic regression within neural networks.

Prerequisites

To follow these tutorials, you should have a basic understanding of machine learning concepts and be familiar with Python programming. Experience with PyTorch and Jupyter Notebooks is also recommended.

Setup (Windows, macOS, Linux)

Follow these steps to run the notebooks:

Option A: Using conda (recommended)

  1. Install Miniconda or Anaconda
  2. From the project root, create the environment:
conda env create -f environment.yml
  1. Activate the environment:
conda activate kan-tutorial
  1. (Optional) Create a .env from the example and adjust as desired:
copy example.env .env # on Windows# cp example.env .env # on macOS/Linux
  1. Launch JupyterLab:
jupyter lab

Option B: Using pip + venv

  1. Create and activate a virtual environment:
python -m venv .venv
# Windows
.\.venv\Scripts\activate
# macOS/Linux# source .venv/bin/activate
  1. Install requirements:
pip install -r requirements.txt
  1. (Optional) Copy environment example:
copy example.env .env # on Windows# cp example.env .env # on macOS/Linux
  1. Start JupyterLab:
jupyter lab

Notes

  • The notebooks and utils.py use torch, numpy, and matplotlib.
  • The provided environment.yml pins Python 3.10 and CPU-only PyTorch by default. If you have a CUDA-capable GPU, replace cpuonly with an appropriate CUDA package per PyTorch installation instructions.

Repositories of Interest

Original repository by Prateek Gupta. https://github.com/pg2455/KAN-Tutorial

FastKAN: Very Fast Kolmogorov-Arnold Network via Radial Basis Functions. https://github.com/ZiyaoLi/fast-kan

Efficient KAN: An Efficient Implementation of Kolmogorov-Arnold Network. https://github.com/Blealtan/efficient-kan

About

Understanding Kolmogorov-Arnold Networks: A Tutorial Series on KAN using Toy Examples

Topics

Resources

Stars

0 stars

Watchers

0 watching

Forks

Releases

Packages

Contributors

Languages