Language and NLP Section 046

Sequence Labelling and Structure

Putting a label on every single word instead of the whole sentence — the machinery behind entity extraction.

10 of 10 lessons published Three reading levels on every lesson

Start with “Part-of-speech tagging”

Lessons in order

Work top to bottom. Each lesson assumes the one above it.

  1. Part-of-speech tagging
  2. BIO and BILOU tagging schemes
  3. Conditional random fields
  4. Training NER on your own entities
  5. Nested and overlapping entities
  6. Why token accuracy lies for NER
  7. Entity linking
  8. Coreference resolution
  9. Relation extraction
  10. Dependency parsing