Entropy Decision Fusion for Smartphone Sensor based Human Activity Recognition
This work addresses the problem of improving activity recognition for applications like surveillance and healthcare, but it is incremental as it builds on existing methods without major breakthroughs.
The paper tackles human activity recognition from smartphone sensors by proposing a decision fusion mechanism that integrates predictions from multiple learning algorithms using Tsallis entropy, achieving results comparable to existing methods on benchmark datasets UCI-HAR and WISDM.
Human activity recognition serves an important part in building continuous behavioral monitoring systems, which are deployable for visual surveillance, patient rehabilitation, gaming, and even personally inclined smart homes. This paper demonstrates our efforts to develop a collaborative decision fusion mechanism for integrating the predicted scores from multiple learning algorithms trained on smartphone sensor based human activity data. We present an approach for fusing convolutional neural network, recurrent convolutional network, and support vector machine by computing and fusing the relative weighted scores from each classifier based on Tsallis entropy to improve human activity recognition performance. To assess the suitability of this approach, experiments are conducted on two benchmark datasets, UCI-HAR and WISDM. The recognition results attained using the proposed approach are comparable to existing methods.