Lars Henry Berge Olsen is a PhD candidate at the Department of Mathematics at UiO. He is working on methods for using the Shapley value apparatus from cooperative game theory as a model-agnostic explanation method for interpreting machine learning models / black-box models.
Presentation
Have you ever split an expense with friends and felt that you paid an unfair amount of money compared to how much of the expense you were responsible for? Or maybe your research article, where you were the main author, won a prize, and now some of the co-authors want to split the prize money equally. Is that fair?
Berge Olsen will present Shapley values and their uses in this popular science presentation. Shapley values originated in co-operative game theory in the 1950s and are a solution concept of how to fairly divide a cost/payout onto the participants based on their contribution to the overall cost/payout. Today, Shapley values are extensively used as a model-agnostic explanation framework in explainable artificial intelligence (XAI), i.e., explaining the decision-making process of complex black-box machine learning models. However, there are several computational hurdles to using Shapley values as an explanation framework. Berge Olsen will briefly explain how he used a form of variational autoencoder to overcome one of these problems in his first research article.
Program
11:30 – Doors open and lunch is served
12:00 – "The Many Uses of Shapley Values" by Lars Henry Berge Olsen (PhD Candidate, Statistics and Data Science)
This event is open for all PhD candidates and postdocs. No registration needed.
About the seminar series
Once a month, dScience will invite you to join us for lunch, soft drinks and professional talks at the Science Library. In addition to these, we will serve lunch to PhD candidates in our lounge in Kristine Bonnevies hus every Thursday. Due to limited space (40 people), this will be first come, first served. See how to find us here (download).
Our lounge can also be booked by PhDs and Postdocs on a regular basis, whether it is for a meeting or just to hang out – we have fresh coffee all day long! Read more about the seminar series here.