Introduction to Python's pathlib module for cleaner, object-oriented file path manipulation as an alternative to os.path.

NLP text preprocessing techniques: stopword removal, lemmatization, and punctuation handling with NLTK and spaCy.

Introduction to word embedding and Word2Vec: how words are mapped to vector spaces to capture semantic relationships.

Retrospective on a mask/age/gender image classification competition: model selection, augmentation, CutMix, and lessons learned.

Using the Albumentations library for image augmentation in PyTorch, with example pipelines for training and TTA.

Introduction to Bag-of-Words text representation with one-hot encoding and Naive Bayes classification.