Amazon Algorithm Analysis Portfolio

A comprehensive case study portfolio analyzing how Amazon leverages advanced algorithms and data structures to power its global e-commerce and cloud computing infrastructure.

🎯 Project Overview

This project presents 19 detailed case studies examining the algorithmic foundations behind Amazon's operations, from string processing for Kindle search to distributed systems for AWS. Each case study demonstrates practical applications of computer science theory in real-world, large-scale systems.

🏗️ Project Structure

portfolio/
├── index.html                 # Main portfolio homepage
├── business-cases.html        # Complete algorithm case studies
├── references.html           # Academic references and sources
├── styles/
│   ├── style.css            # Main styling
│   ├── style2.css           # Additional components
│   ├── style4.css           # Case study specific styles
│   └── case-study-2.css     # Extended case study styling
├── scripts/
│   ├── script3.js           # Interactive functionality
│   └── navigation.js        # Navigation handling
├── images/
│   ├── lcs.png             # Algorithm visualizations
│   └── profile/            # Profile images
└── README.md               # Project documentation

📚 Case Studies Included

String Processing & Search

1. Kindle Substring Search - Suffix Trees for efficient text search
2. Autocomplete System - Trie data structures for real-time suggestions
3. Product Matching - Longest Common Subsequence for similarity detection

Graph Algorithms & Optimization

4. Route Optimization - Dijkstra's and Bellman-Ford algorithms
5. Seller Trust Ranking - PageRank for reputation systems
6. Package Delivery - Hungarian Algorithm for optimal assignment
7. Stable Matching - Gale-Shapley for marketplace matching
8. Traffic Management - Ford-Fulkerson for network flow
9. Fulfillment Network - Minimum Spanning Trees for logistics

Data Structures & Management

10. Real-time Analytics - Segment Trees for range queries
11. Inventory Tracking - Fenwick Trees for efficient updates
12. Recommendation Cache - LRU Cache for performance optimization
13. Cart Management - Stack for undo/redo functionality
14. Warehouse Navigation - A* Search for robot pathfinding

Advanced Applications

15. Clickstream Analytics - Skip Lists for time-series data
16. User Clustering - Union-Find for community detection
17. Media Compression - Huffman Coding for streaming optimization

🛠️ Technologies Used

• Frontend: HTML5, CSS3, JavaScript (ES6+)
• Styling: Custom CSS with Flexbox/Grid layouts
• Icons: Font Awesome 6.0
• Fonts: Google Fonts (Poppins)
• Responsive Design: Mobile-first approach

🎨 Features

Interactive Design

• Responsive Layout: Optimized for desktop, tablet, and mobile devices
• Smooth Animations: CSS transitions and hover effects
• Dynamic Navigation: JavaScript-powered section navigation
• Code Toggles: Expandable code snippet sections

Educational Content

• Algorithm Explanations: Detailed technical descriptions
• Complexity Analysis: Time and space complexity for each algorithm
• Business Applications: Real-world Amazon use cases
• Performance Metrics: Quantified efficiency improvements
• Visual Diagrams: Algorithm flow and data structure visualizations

Academic Rigor

• Research References: Links to original algorithm papers
• Academic Sources: Peer-reviewed publications and documentation
• Implementation Links: GitHub repositories with source code
• Citation Format: Proper academic attribution

🚀 Getting Started

Prerequisites

• Modern web browser (Chrome, Firefox, Safari, Edge)
• Local web server (optional, for development)

Installation

1. Clone the repository

   git clone https://github.com/yourusername/aps-portfolio.git
   cd aps-portfolio

2. Open in browser

   # Direct file access
   open index.html
   
   # Or serve locally (recommended)
   python -m http.server 8000
   # Then visit http://localhost:8000

3. Navigate the portfolio

   • Start at index.html for the main portfolio
   • Explore business-cases.html for detailed case studies
   • Check references.html for academic sources

📱 Responsive Design

The portfolio is fully responsive with breakpoints at:

• Mobile: 320px - 768px
• Tablet: 768px - 1024px
• Desktop: 1024px+

🔗 Navigation Structure

Homepage (index.html)
├── About Section
├── Skills & Technologies
├── Case Studies Preview
└── Contact Information

Case Studies (business-cases.html)
├── Algorithm Navigation Grid
├── 19 Detailed Case Studies
├── Interactive Code Snippets
└── Performance Metrics

References (references.html)
├── String Processing Papers
├── Graph Algorithm Research
├── Data Structure Documentation
├── Amazon Technical Papers
└── Implementation Code Links

📊 Algorithm Complexity Overview

Algorithm	Time Complexity	Space Complexity	Use Case
Suffix Tree	O(n)	O(n)	Text Search
Dijkstra's	O((V + E) log V)	O(V)	Route Planning
PageRank	O(n³)	O(n²)	Trust Ranking
Hungarian	O(n³)	O(n²)	Assignment
A* Search	O(b^d)	O(b^d)	Pathfinding
LRU Cache	O(1)	O(capacity)	Caching

🎓 Educational Value

This portfolio serves as:

• Learning Resource: Comprehensive algorithm explanations
• Industry Application: Real-world case studies
• Interview Preparation: Common technical interview topics
• Academic Reference: Properly cited research materials
• Code Examples: Practical implementation guidance

📖 Academic Sources

The project references over 50 academic papers and publications including:

• Original algorithm papers (Dijkstra, 1959; Huffman, 1952)
• Amazon research publications
• Computer science textbooks (CLRS, Kleinberg & Tardos)
• University course materials (MIT, Stanford)
• Industry whitepapers and documentation

🤝 Contributing

While this is a personal portfolio project, suggestions for improvements are welcome:

1. Fork the repository
2. Create a feature branch (git checkout -b feature/improvement)
3. Commit changes (git commit -am 'Add improvement')
4. Push to branch (git push origin feature/improvement)
5. Create a Pull Request

📄 License

This project is open source and available under the MIT License.

👤 Author

Pavan H Bhakta

• Email: pavanbhakta16@gmail.com
• GitHub: @bPavan16
• LinkedIn: Profile

🙏 Acknowledgments

• Amazon for inspiring these algorithmic applications
• Academic researchers whose papers made this analysis possible
• Open source community for tools and resources
• University professors and online educators

📈 Future Enhancements

• Add more algorithm visualizations
• Include interactive algorithm simulators
• Expand to other tech companies (Google, Microsoft)
• Add performance benchmarking tools
• Create video explanations for complex algorithms

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This portfolio demonstrates the intersection of theoretical computer science and practical industry applications, showcasing how fundamental algorithms power modern technology at scale.