Using deep learning for trajectory classification in imbalanced dataset


  • Nicksson Ckayo Arrais de Freitas Insight Data Science Lab
  • Ticiana L. Coelho da Silva Insight Data Science Lab
  • José Antônio Fernandes de Macêdo
  • Leopoldo Melo Júnioer Insight Data Science Lab



Deep Learning, Trajectory Classification, Imbalanced Dataset, Machine Learning


Deep learning has gained much popularity in the past years due to GPU advancements, cloud computing improvements, and its supremacy, considering the accuracy results when trained on massive datasets. As with machine learning, deep learning models may experience low performance when handled with imbalanced datasets. In this paper, we focus on the trajectory classification problem, and we examine deep learning techniques for coping with imbalanced class data. We extend a deep learning model, called DeepeST (Deep Learning for Sub-Trajectory classification), to predict the class or label for sub-trajectories from imbalanced datasets. DeepeST is the first deep learning model for trajectory classification that provides approaches for coping with imbalanced dataset problems from the authors' knowledge. In this paper, we perform the experiments with three real datasets from LBSN (Location-Based Social Network) trajectories to identify who is the user of a sub-trajectory (similar to the Trajectory-User Linking problem). We show that DeepeST outperforms other deep learning approaches from state-of-the-art concerning the accuracy, precision, recall, and F1-score.




How to Cite

Freitas, N. C. A. de, da Silva, T. L. C., de Macêdo, J. A. F., & Júnioer, L. M. (2021). Using deep learning for trajectory classification in imbalanced dataset. The International FLAIRS Conference Proceedings, 34.



Special Track: Neural Networks and Data Mining