Kohei Obata

According to our database, Kohei Obata authored at least 6 papers between 2022 and 2025.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of five.

2025

Robust and Explainable Detector of Time Series Anomaly via Augmenting Multiclass Pseudo-Anomalies.

Kohei Obata, Yasuko Matsubara, Yasushi Sakurai

CoRR, May, 2025

Disentangled Mode-Specific Representations for Tensor Time Series via Contrastive Learning.

Kohei Obata, Taichi Murayama, Zheng Chen, Yasuko Matsubara, Yasushi Sakurai

Proceedings of the Data Science: Foundations and Applications, 2025

2024

Dynamic Multi-Network Mining of Tensor Time Series.

Kohei Obata, Koki Kawabata, Yasuko Matsubara, Yasushi Sakurai

Proceedings of the ACM on Web Conference 2024, 2024

Gaussian Graphical Model-Based Clustering of Time Series Data.

Kohei Obata

Proceedings of the 17th ACM International Conference on Web Search and Data Mining, 2024

Mining of Switching Sparse Networks for Missing Value Imputation in Multivariate Time Series.

Kohei Obata, Koki Kawabata, Yasuko Matsubara, Yasushi Sakurai

Proceedings of the 30th ACM SIGKDD Conference on Knowledge Discovery and Data Mining, 2024

2022

Automatic Time-Series Clustering via Network Inference.

Kohei Obata

Proceedings of the VLDB 2022 PhD Workshop co-located with the 48th International Conference on Very Large Databases (VLDB 2022), 2022