Teaching or conference talk
A no nonsense intro to BM25
BM25 is a ranking formula for scoring how well documents match a query, and this video breaks down term frequency, document length, the k1 and b settings and a code demo.
Topic
TF-IDF
2 videos.
Teaching or conference talk
BM25 : The Most Important Text Metric in Data Science
TF-IDF has weaknesses, the presenter argues, and BM25 is built to answer them. The video lays out the problems first, then the BM25 formula.
Older: check current guidance
