Abstract : This paper describes conformal prediction techniques for detecting anomalous trajectories in the maritime domain. The data used in experiments were obtained from Automatic Identification System (AIS) broadcasts – a system for tracking vessel locations. A dimensionality reduction package is used and a kernel density estimation function as a non-conformity measure has been applied to detect anomalies. We propose average p-value as an efficiency criteria for conformal anomaly detection. A comparison with a k-nearest neighbours non-conformity measure is presented and the results are discussed.
https://hal.inria.fr/hal-01391054 Contributor : Hal IfipConnect in order to contact the contributor Submitted on : Wednesday, November 2, 2016 - 5:18:32 PM Last modification on : Thursday, March 5, 2020 - 5:41:12 PM Long-term archiving on: : Friday, February 3, 2017 - 3:50:26 PM
James Smith, Ilia Nouretdinov, Rachel Craddock, Charles Offer, Alexander Gammerman. Anomaly Detection of Trajectories with Kernel Density Estimation by Conformal Prediction. 10th IFIP International Conference on Artificial Intelligence Applications and Innovations (AIAI), Sep 2014, Rhodes, Greece. pp.271-280, ⟨10.1007/978-3-662-44722-2_29⟩. ⟨hal-01391054⟩