NECLA at the Medical Natural Language Processing Pilot Task (MedNLP)

This paper gives an overview of NECLA’s submitted systems for the De-Identification and Complaint & Diagnosis subtasks of the Medical Natural Language Processing Pilot Task (MedNLP)[5]. Our systems combine features derived from Part of Speech (POS) tags, a domain-specific dictionary, the Unified Medical Language System (UMLS) metathesaurus and semantic network, and a small set of heuristics based on trigger-words and polarity propagation through sentence dependency parse trees.