Abstract:
We propose an approach to retrospective change-point estimation that includes learning feature representations from data. The feature representations are specified within...Show MoreMetadata
Abstract:
We propose an approach to retrospective change-point estimation that includes learning feature representations from data. The feature representations are specified within a differentiable programming framework, that is, as parameterized mappings amenable to automatic differentiation. The proposed method uses these feature representations in a penalized least-squares objective into which known change-point labels can be incorporated. We propose to minimize the objective using an alternating optimization procedure. We present numerical illustrations on synthetic and real data showing that learning feature representations can result in more accurate estimation of change-point locations.
Published in: 2020 IEEE 30th International Workshop on Machine Learning for Signal Processing (MLSP)
Date of Conference: 21-24 September 2020
Date Added to IEEE Xplore: 20 October 2020
ISBN Information:
Print on Demand(PoD) ISSN: 1551-2541