Time-aware (leakage-free) link prediction on Amazon 5-core co-purchase graphs; warm vs cold-start + runtime study.
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Jan 14, 2026 - Python
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precision-at-k
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A lightweight recommender that helps you discover your next learning resource. It blends patterns from similar users with content keywords, and explains each suggestion in the UI.
python scikit-learn pandas matrix-factorization tf-idf recommender-system als evaluation-metrics implicit-feedback ndcg lightfm explainable-ai top-n-recommendations content-based-filtering hybrid-recommender streamlit mapk logistic-matrix-factorization precision-at-k implicit-lib
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Nov 5, 2025 - Python
Matrix Factorization–based recommender system built from scratch and with cmfrec, evaluated using RMSE, Precision@K, and Recall@K on the Yelp dataset.
machine-learning collaborative-filtering matrix-factorization recommendation-engine recommender-system cmf sparse-matrix ranking-metrics cold-start-problem recall-at-k precision-at-k
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Feb 11, 2026 - Jupyter Notebook
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