#classification

• 23 Jul 2025 · Study

  NLP · Text classification

  Multi-class topic classification on 20 Newsgroups, comparing Naive Bayes, logistic regression and a linear SVM, with a per-class report and the most confused pairs.

• 14 Jul 2025 · Study

  NLP · Sentiment analysis

  Classifying movie-review sentiment on the Rotten Tomatoes dataset: a TF-IDF plus logistic regression baseline, its most telling words, and where it fails.

• 16 Oct 2024 · Study

  Machine Learning · Support vector machines

  SVMs find the widest-margin boundary; support vectors, the C parameter, and the kernel trick for non-linear data.

• 12 Sept 2024 · Study

  Machine Learning · k-nearest neighbours

  k-NN classifies by majority vote of the closest training points; why scaling matters and how k controls the bias–variance trade-off.

• 27 Aug 2024 · Study

  Machine Learning · Logistic regression

  Logistic regression for binary classification: the sigmoid, log-loss, decision thresholds, and predicted probabilities.