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Anime Recommendation System

Completed 2024 • Multi-Approach Recommendation System with Collaborative, Content-Based, and User Similarity Methods

This project explores various recommendation system techniques for anime recommendations using data from MyAnimeList. The project implements three main approaches: Collaborative Filtering (recommendations based on user preferences and similarities with other users), Content-Based Filtering (recommendations based on product descriptions and similarity between items), and User Similarity-Based recommendations (based on user profile similarities). The project uses the Surprise library for collaborative filtering algorithms including KNN variants, SVD, SVD++, SlopeOne, CoClustering, and SGD-based models. It includes comprehensive evaluation metrics (MAE, RMSE, Hit Rate, ARHR, User Coverage), hyperparameter tuning with GridSearchCV, and systematic model comparison.

Data Science Machine Learning Python Development Recommendation Systems Collaborative Filtering Content-Based Filtering Information Retrieval

Overview

This project explores various recommendation system techniques for anime recommendations using data from MyAnimeList. The project implements three main approaches: Collaborative Filtering (recommendations based on user preferences and similarities with other users), Content-Based Filtering (recommendations based on product descriptions and similarity between items), and User Similarity-Based recommendations (based on user profile similarities). The project uses the Surprise library for collaborative filtering algorithms including KNN variants, SVD, SVD++, SlopeOne, CoClustering, and SGD-based models. It includes comprehensive evaluation metrics (MAE, RMSE, Hit Rate, ARHR, User Coverage), hyperparameter tuning with GridSearchCV, and systematic model comparison.

Key Features

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Collaborative filtering with 9+ algorithms (KNN variants, SVD, SVD++, SlopeOne, CoClustering, SGD)

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Content-based filtering for product similarity

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User similarity-based recommendations

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Comprehensive evaluation metrics (MAE, RMSE, Hit Rate, ARHR, User Coverage)

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Hyperparameter tuning with GridSearchCV

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Model persistence and comparison

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Large-scale dataset handling (1.1GB+ MyAnimeList data)

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Sparse matrix optimization

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Top-N recommendation function

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Statistical analysis and visualization

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pages.portfolio.projects.anime_recommendation_system.features.10

Technical Highlights

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Implemented 9+ collaborative filtering algorithms using Surprise library

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Created comprehensive evaluation framework with multiple metrics

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Performed hyperparameter tuning with GridSearchCV

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Handled large-scale MyAnimeList dataset (1.1GB+)

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Compared collaborative, content-based, and user similarity approaches

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Developed top-N recommendation function with personalized results

Challenges and Solutions

Data Sparsity

Addressed highly sparse user-item matrix using threshold-based filtering and matrix factorization

Cold Start Problem

Implemented content-based filtering and hybrid approaches for new users/items

Scalability

Used efficient data structures, sparse matrices, and optimized algorithms for large dataset

Hyperparameter Tuning

Applied GridSearchCV for systematic hyperparameter search and performance tracking

Evaluation Metrics

Developed comprehensive metric suite covering accuracy, ranking, and coverage perspectives

Model Comparison

Created standardized evaluation framework for systematic algorithm comparison

Technologies

Recommendation Systems

Surprise KNN SVD SVD++ SlopeOne CoClustering SGD

Data Processing

Pandas NumPy

Visualization

Matplotlib Seaborn Plotly

Analysis

SciPy Statsmodels

Evaluation

GridSearchCV Cross-Validation

Environment

Python Jupyter Notebook

Project Information

Status
Completed
Year
2024
Architecture
Multi-Approach Recommendation System with Collaborative, Content-Based, and User Similarity Methods
Category
Data Science