AI / ML
Confusion Matrix Threshold Lab
Interactive threshold tuning lab for precision/recall tradeoffs, confusion-matrix intuition, and classifier decision policy design.
classificationconfusion-matrixprecisionrecall
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AI / MLCommunity
Eigenvalues & Eigenvectors: Matrix Direction Lab
Watch matrices transform vectors, discover the directions that do not turn, and connect eigenvectors to PCA and machine learning.
linear-algebramatriceseigenvalueseigenvectors
AI / ML
Gradient Descent Mission Control
Interactive optimization lab to tune learning rate, observe convergence behavior, and build intuition for gradient-descent stability.
gradient-descentoptimizationlearning-rateloss-minimization
AI / MLCommunity
Naive Bayes Spam Filter Lab
Learn every Naive Bayes calculation, experiment with a live spam filter, and implement the complete classifier from scratch and with scikit-learn in Google Colab.
bayes-theoremnaive-bayesspam-filtertext-classification