Overview of NLP fundamentals including tokenization, NER, sentiment analysis, machine translation, and the impact of Transformer on the field.

Curated list of reinforcement learning study resources including lectures, books, and blog posts.

Solution for the Programmers word conversion problem using BFS with single-character diff detection.

Solution for Baekjoon 17297 (Messi Gimossi) using Fibonacci-based string search with a binary search-like approach.

Last-minute competition score boosting: test-time augmentation (TTA) with soft voting and half-precision training.

Common NumPy pitfalls: dtype=object issues with mixed-type lists and axis behavior in np.mean.