Active privileged learning of human activities from weakly labeled samples | IEEE Conference Publication | IEEE Xplore

Active privileged learning of human activities from weakly labeled samples


Abstract:

In many human activity recognition systems the size of the unlabeled training data may be significantly large due to expensive human effort required for data annotation. ...Show More

Abstract:

In many human activity recognition systems the size of the unlabeled training data may be significantly large due to expensive human effort required for data annotation. Moreover, the insufficient data collection process from heterogenous sources may cause dissimilarities between training and testing data. To address these limitations, a novel probabilistic approach that combines learning using privileged information (LUPI) and active learning is proposed. A pool-based privileged active learning approach is presented for semi-supervising learning of human activities from multimodal labeled and unlabeled data. Both uncertainty and distance from the decision boundary are used as query inference strategies for selecting an unlabeled observation and querying its label. Experimental results in four publicly available datasets demonstrate that the proposed method can identify complex human activities with high accuracy.
Date of Conference: 25-28 September 2016
Date Added to IEEE Xplore: 19 August 2016
ISBN Information:
Electronic ISSN: 2381-8549
Conference Location: Phoenix, AZ, USA

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