Lab: The Tidewell entity extractor, scored

Module 3 · Lab · About 60 minutes · Needs: lessons 1 to 3 of this module, and the Module 2 lab (or its cells, pasted here)

What you are building

Dev asked in week 3 for the product, the order number, the date and the price in every booking, so that he stops retyping them into the workshop diary. The three lessons each added a part to inbox/entities.py: tags and noun phrases, the parse and negation scope, and the EntityRuler in front of spaCy's model. This lab settles those parts into one file with its tests, puts them together into one record per message, and scores the extractor at entity level on Ines's hand-written test set, label by label and language by language. Last, it trains Lesson 3's product model again with a fixed seed and saves it under models/.

Open a new Colab notebook, call it module-03-lab.ipynb, and run each cell in order.