The Aberdeen NLP Research Group
See how machines read language
Two hands-on, browser-based explainers. No installation, no maths prerequisites — just type, step through the algorithms, and watch them work.
Tokenisation
Tokenisers Factory
How raw text becomes tokens. Visualise BPE, WordPiece, SentencePiece and the rest, then train them yourself with interactive step-by-step labs.
Open Tokenisers Factory →Language Models
LMs Factory
How models predict the next word. From bag-of-words and n-grams to Word2Vec, LSTMs and Transformers — each with an interactive widget you drive.
Open LMs Factory →Evaluation
Evaluation Factory
How we measure model quality. From precision, recall and F1 to perplexity, BLEU, ROUGE and LLM-as-judge — each with an interactive calculator.
Open Evaluation Factory →