Skip to yearly menu bar Skip to main content


Poster

Tilt and Average : Geometric Adjustment of the Last Layer for Recalibration

Gyusang Cho · Chan-Hyun Youn

Hall C 4-9 #2216
[ ] [ Paper PDF ]
[ Slides [ Poster
Wed 24 Jul 4:30 a.m. PDT — 6 a.m. PDT

Abstract:

After the revelation that neural networks tend to produce overconfident predictions, the problem of calibration, which aims to align confidence with accuracy to enhance the reliability of predictions, has gained significant importance. Several solutions based on calibration maps have been proposed to address the problem of recalibrating a trained classifier using additional datasets. In this paper, we offer an algorithm that transforms the weights of the last layer of the classifier, distinct from the calibration-map-based approach. We concentrate on the geometry of the final linear layer, specifically its angular aspect, and adjust the weights of the corresponding layer. We name the method Tilt and Average, and validate the calibration effect empirically and theoretically. Through this, we demonstrate that our approach, in addition to the existing calibration-map-based techniques, can yield improved calibration performance.

Chat is not available.