Presentation
Explainability in AI is crucial across various applications, yet existing methods often overlook the explainability-accuracy trade-off in complex models. We introduce Explainability through Correlation Impact Ratio (ExCIR), a novel approach that balances explainability and accuracy in complex machine learning models, especially with independent features. ExCIR creates a streamlined data space from the original dataset, requiring fewer input samples while maintaining model accuracy. The Correlation Impact Ratio (CIR) quantifies each feature’s contribution to the model’s output, accounting for feature uncertainty regarding its presence or absence. Using the CAUEEG dataset related to dementia, we demonstrate that ExCIR maintains accuracy while enhancing explainability through feature impact scores. Our method reliably ranks feature importance in original and simplified models, validating its consistency.
Speaker
Poushali Sengupta joined the Department of Informatics as a Ph.D. Research Employee in November 2021. Her research area is related to explainable artificial intelligence, distributed machine learning, data privacy, and security. She is currently working on Explainable AI to find a balance in an accuracy-explainability tradeoff for complex ML models.
Program
11:30 – Doors open and lunch is served
12:00 – "Balancing Explainability-Accuracy of Complex Models" by Poushali Sengupta (PhD Candidate, Department of Informatics)
This event is open for all students, PhD candidates, postdocs, and everyone else who is interested in the topic. No registration needed.
About the seminar series
Once a month, dScience will invite you to join us for lunch and professional talks at the Science Library. In addition to these, we will serve lunch in our lounge in Kristine Bonnevies house every Thursday. Due to limited space (40 people), this will be first come, first served. See how to find us here.
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!