Hanabi Challenge Presentation Migration

Date: 2025-11-14
Task: Migrate /stack/hanabi/hanabichallenge.html to standardized Jekyll format
Status: ✅ Completed

Summary

Successfully migrated the legacy Jupyter notebook-based Hanabi Challenge presentation to the new Jekyll-based standardized format. The presentation is now available at _presentations/hanabi-challenge.html and uses YAML-driven configuration with the reveal.js layout.

Changes Made

1. Created Custom JavaScript Helper (/js/hanabi-presentation.js)

The original presentation used custom JavaScript functions to dynamically set background colors and images:

  • setBackgroundColor(bgColor, textColor)
  • setBackgroundImage(src, textColor)
  • setBackgroundVideo(video, textColor)
  • setBackgroundiFrame(iFrame, textColor)

These functions find the parent <section> element and apply data-background-* attributes dynamically via inline <script> tags. This approach is preserved for backward compatibility.

2. Extracted and Cleaned Slide Content

  • Original file: 13,834 lines of HTML with embedded Jupyter notebook structure
  • Extracted: 39 <section> elements (slides)
  • Cleaned: Removed Jupyter cell wrappers, anchor links, and unnecessary markup
  • Final presentation: 774 lines including YAML front matter

3. Created Jekyll Presentation File

Location: _presentations/hanabi-challenge.html

YAML Front Matter:

title: "The Hanabi Challenge: A New Frontier for AI Research"
subtitle: "Bard, Foerster, Chandar, et al."
presenter: "Albert Orozco Camacho"
reveal:
  theme: simple
  transition: slide
  menu: true
  chalkboard: true
  math: true  # Required for LaTeX equations
  math_config:
    mathjax: 'https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/latest.js?config=TeX-AMS_HTML'
  additional_js:
    - '/js/hanabi-presentation.js'  # Custom background helpers
  links:
    - label: 'ArXiv Paper'
      url: 'https://arxiv.org/abs/1902.00506'

4. Fixed Image Paths

All local images now use absolute paths from the site root:

  • Before: src="hanabi-scheme.png"
  • After: src="/stack/hanabi/hanabi-scheme.png"

Images in the original location remain unchanged:

/workspace/stack/hanabi/
  ├── acha-evol2.png
  ├── acha-evol.png
  ├── acha-noevol.png
  ├── adhoc.png
  ├── fireflower.png
  ├── hanabi-scheme.png
  ├── paper.gif (20MB animated GIF)
  ├── questions.png
  ├── rainbow2.png
  ├── rainbow.png
  └── table-res.png

5. Preserved Special Features

Math Support (LaTeX)

The presentation uses inline math notation like $\in \{1,2,3,4,5\}$ for mathematical expressions. MathJax is configured via YAML to render these properly.

Dynamic Backgrounds

Preserved the original dynamic background system via <script> tags:

<section>
  <h2>Motivation</h2>
  <script>setBackgroundColor("cyan", "");</script>
</section>

Fragment Animations

Progressive reveal elements using the fragment class are preserved:

<div class="fragment">
  <ul>
    <li>Appears on click/next</li>
  </ul>
</div>

URL Structure

Legacy Presentation

  • URL: https://alorozco53.github.io/stack/hanabi/hanabichallenge.html
  • File: /workspace/stack/hanabi/hanabichallenge.html (13,834 lines)

New Jekyll Presentation

  • URL: https://alorozco53.github.io/presentations/hanabi-challenge.html
  • File: /workspace/_presentations/hanabi-challenge.html (774 lines)

Features Enabled

Core Reveal.js

  • ✅ Navigation controls
  • ✅ Progress bar
  • ✅ Browser history
  • ✅ Vertical centering

Plugins

  • ✅ Menu - Side navigation with slide overview
  • ✅ Chalkboard - Drawing tools for annotations
    • Press c to draw on slides
    • Press b for whiteboard
    • Press DEL to clear drawings
    • Press d to download annotations
  • ✅ MathJax - LaTeX equation rendering
  • ✅ Markdown - Markdown slide support (if needed)
  • ✅ Highlight - Code syntax highlighting
  • ✅ Zoom - Alt+click to zoom
  • ✅ Notes - Speaker notes (press S)
  • ✅ Home link (back to /)
  • ✅ Quick link to ArXiv paper
  • ✅ Reveal.js menu integration

Testing Notes

Manual Verification Needed

  1. Local Testing: Run Jekyll server and visit: 
    http://localhost:4000/presentations/hanabi-challenge.html
  2. Check Items:
    • All slides render correctly
    • Background colors/images apply properly
    • Math equations render (e.g., $\in \{1,2,3,4,5\}$)
    • All images load (especially the 20MB paper.gif)
    • Dynamic backgrounds work via script tags
    • Menu plugin shows slide titles
    • Chalkboard drawing tools function
    • Fragment animations work
    • Links to external paper work
  3. Cross-Browser Testing:
    • Chrome/Edge
    • Firefox
    • Safari
    • Mobile browsers

Known Considerations

  1. Large GIF File: The paper.gif file is 20MB. May want to optimize or replace with a smaller version for better loading performance.

  2. External Image: One slide uses an external image from boardgaming.com. If the URL breaks, consider downloading and hosting locally.

  3. Math Rendering: MathJax loads from CDN. Ensure CDN is accessible in production.

  4. Custom Functions: The hanabi-presentation.js file must load before slide content for background functions to work.

Comparison with Prototype

The Hanabi presentation follows the same structure as standardization-prototype.html but includes:

  • Custom JavaScript helpers for dynamic backgrounds
  • MathJax configuration for LaTeX
  • More extensive use of fragments
  • External image links
  • Larger image assets

Next Steps

  1. Test Locally: Build and serve the site to verify all functionality
  2. Optimize Images: Consider compressing paper.gif and other large assets
  3. Update Links: If desired, add link from homepage or research page to new presentation
  4. Legacy Redirect: Optionally add redirect from old URL to new URL

Migration Success Metrics

  • ✅ All 39 sections extracted
  • ✅ YAML front matter configured
  • ✅ Custom JavaScript created for background helpers
  • ✅ Image paths corrected
  • ✅ Math support enabled
  • ✅ Drawing tools enabled
  • ✅ Menu integration configured
  • ✅ Legacy features preserved

Files Modified/Created

Created

  • /workspace/_presentations/hanabi-challenge.html - New Jekyll presentation
  • /workspace/js/hanabi-presentation.js - Custom background helpers
  • /workspace/debug/2025-11-14T-hanabi-migration.md - This document

Preserved (no changes)

  • /workspace/stack/hanabi/hanabichallenge.html - Original legacy file
  • /workspace/stack/hanabi/*.{png,gif,jpg} - All image assets

Conclusion

The Hanabi Challenge presentation has been successfully migrated to the standardized Jekyll format while preserving all functionality including dynamic backgrounds, math rendering, and progressive reveals. The new format provides better maintainability, consistent styling, and integrated drawing tools through YAML configuration.

Next Presentation to Migrate: Consider migrating other presentations in /stack/ directory following this same pattern.