Predicting Presence and Severity of Depression from Speech Using Emotional Transfer Learning

Dec 16, 2020 14:00 — 15:00
Data Science Hour
Hoffman-La Roche
Basel, 94305
Click on the Slides button above to view the slides.

A presentation of my internship project while at Hoffman-La Roche on using transfer learning from emotional speech to detect depression. We trained a Mixture of Experts consisting of gradient-boosted decision tree classifiers to classify happiness and sadness in datasets of acted emotional speech in English and German. The model was applied to a dataset of interviews with Danish speaking patients with first episode depression and matched healthy controls. We observed significant seperation between the two groups, and found patients in remission to speak similarly to controls. Further, we conducted experiments on the effect of removing background noise and speaker diarization, which showed consistent levels of background noise to be crucial for consistent inferences.

Lasse Hansen
Lasse Hansen
PhD Student in Machine Learning for Healthcare

I am PhD student at the Department of Clinical Medicine at Aarhus University. I study how to use natural language processing and machine learning to improve patient outcomes in psychiatry. I am broadly interested in applying machine learning to solve real world problems, and in advancing open-source software.