A Performance Comparison of Deep Embedded Clustering Methods on IoT Time Series Data


Zorarpacı E.

2nd International Cumhuriyet Artificial Intelligence Applications Conference, Sivas, Türkiye, 8 - 09 Aralık 2022, ss.26-30, (Tam Metin Bildiri)

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Sivas
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.26-30
  • İstanbul Üniversitesi Adresli: Hayır

Özet

The Internet of Things (IoT) enables the emergence of huge amounts of time series data. Hence, the classification/clustering of time series data is a hot research field in data mining. Deep embedded clustering (DEC) is a novel unsupervised learning algorithm that concurrently devises the feature representations and cluster assignments. In this study, the performance of DEC on IoT time series data is investigated. Therefore, two variants of DEC are considered for the performance assessment on IoT time series data. The first deep clustering algorithm is the original DEC which uses k-means in the clustering layer while the second deep clustering algorithm is DEC using the mean shift method in the clustering layer. In the experiments, nine datasets from the UCR time series classification archive are used. The experimental results reveal that DEC using the mean shift shows better clustering performance than DEC using k-means on IoT time series data when there are enough data samples in the dataset to set apart the clusters. Otherwise, DEC using kmeans will be a better choice to perform clustering tasks on IoT time series data.