Deep canonical time warping
File(s)0005.pdf (3.78 MB)
Accepted version
Author(s)
Trigeorgis, G
Nicolaou, MA
Zafeiriou, S
Schuller, B
Type
Conference Paper
Abstract
Machine learning algorithms for the analysis of timeseries often depend on the assumption that the utilised data are temporally aligned. Any temporal discrepancies arising in the data is certain to lead to ill-generalisable models, which in turn fail to correctly capture the properties of the task at hand. The temporal alignment of time-series is thus a crucial challenge manifesting in a multitude of applications. Nevertheless, the vast majority of algorithms oriented towards the temporal alignment of time-series are applied directly on the observation space, or utilise simple linear projections. Thus, they fail to capture complex, hierarchical non-linear representations which may prove to be beneficial towards the task of temporal alignment, particularly when dealing with multi-modal data (e.g., aligning visual and acoustic information). To this end, we present the Deep Canonical Time Warping (DCTW), a method which automatically learns complex non-linear representations of multiple time-series, generated such that (i) they are highly correlated, and (ii) temporally in alignment. By means of experiments on four real datasets, we show that the representations learnt via the proposed DCTW significantly outperform state-of-the-art methods in temporal alignment, elegantly handling scenarios with highly heterogeneous features, such as the temporal alignment of acoustic and visual features.
Date Issued
2016-12-12
Date Acceptance
2016-03-02
Citation
IEEE Conference on Computer Vision and Pattern Recognition, CVPR 2016, 2016
Publisher
IEEE
Journal / Book Title
IEEE Conference on Computer Vision and Pattern Recognition, CVPR 2016
Copyright Statement
© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Sponsor
Engineering & Physical Science Research Council (EPSRC)
Commission of the European Communities
Identifier
https://ieeexplore.ieee.org/document/7780921
Grant Number
EP/J017787/1
645378
Source
IEEE Conference on Computer Vision and Pattern Recognition, CVPR 2016
Subjects
Science & Technology
Technology
Computer Science, Artificial Intelligence
Computer Science
Publication Status
Published
Start Date
2016-06-26
Finish Date
2016-07-01
Coverage Spatial
Las Vegas, USA
Date Publish Online
2016-12-12