| Journal of Advanced Artificial Intelligence |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 2 - Number 5 |
| Year of Publication: 2026 |
| Authors: Debjyoti Ghosh, Utpal Roy |
Debjyoti Ghosh, Utpal Roy . Comprehensive Benchmark Study of Machine Learning and Deep Learning Approaches for Human Activity Recognition using the UCI HAR Dataset. Journal of Advanced Artificial Intelligence. 2, 5 ( Apr 2026), 13-16. DOI=None
Using smartphone sensors for Human Activity Recognition (HAR) has become a crucial research field with applications in smart settings, fitness tracking, and healthcare. This work uses the widely used UCI HAR dataset to give a thorough comparative analysis of different machine learning and deep learning algorithms for HAR. Combining a deep convolutional neural network (CNN) architecture with six conventional machine learning algorithms—Random Forest, XGBoost, Support Vector Machines, k-Nearest Neighbors, and Logistic Regression— the results have been developed and assessed. To guarantee reliable performance evaluation, all models underwent a thorough evaluation process utilizing 5-fold stratified cross-validation. As our results show, the CNN architecture performed better than the others (96.2% accuracy), closely followed by the non-linear approach SVM (95.2%) and the linear method Logistic Regression (95.4%). The study provides valuable insights into the relative strengths of different algorithmic approaches for sensor-based activity recognition and offers practical guidance for selecting appropriate models for HAR applications.