Optimizing Human Activity Recognition with Ensemble Deep Learning on Wearable Sensor Data

Nazish Ashfaq ()
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Nazish Ashfaq: Department of Software Engineering; University of the Punjab, Lahore, Pakistan

International Journal of Innovations in Science & Technology, 2024, vol. 6, issue 4, 1751-1767

Abstract: In recent years, the research community has shown a growing interest in the continuous temporal data gathered from motion sensors integrated into wearable devices. This type of data is highly valuable for analyzing human activities in a variety of domains, including surveillance, healthcare, and sports. Various deep-learning models have been developed to extract meaningful feature representations from temporal sensory data. Nonetheless, many of these models are constrained by their focus on a single aspect of the data, frequently overlooking the complex relationships between patterns. This paper presents an ensemble model aimed at capturing these intricate patterns by combining CNN and LSTM models within an ensemble framework. The ensemble approach involves combining multiple independent models to harness their strengths, resulting in a more robust and effective solution. The proposed model utilizes the complementary capabilities of CNNs and LSTMs to identify both spatial and temporal features in raw sensory data. A comprehensive evaluation of the model is conducted using two well-known benchmark datasets: UCI-HAR and WISDM. The proposed model attained notable recognition accuracies of 97.92% on the UCI-HAR dataset and 98.52% on the WISDM dataset. When compared to existing state-of-the-art methods, the ensemble model exhibited superior performance and effectiveness.

Keywords: Human Activity Recognition; Ensemble Deep Learning Model; Sensory Data Analysis; Wearable Devices; Time-Series Signal Processing (search for similar items in EconPapers)
Date: 2024
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