Demystifying Conditional Random Fields (CRF) for NER: From Mathematical Elegance to Practical Implementation

A deep dive into the underlying mathematics of Conditional Random Fields (CRF), why they still matter in the age of LLMs, and a practical step-by-step guide to implementing sequence labeling using CRF++. Note: this is a combination of 2 old blog posts of me: https://blog.csdn.net/Felomeng/article/details/4288492 https://felomeng.blog.csdn.net/article/details/4367250