no code implementations • 6 Nov 2021 • Mohamed A. Zahran, Leonardo Teixeira, Vinayak Rao, Bruno Ribeiro
This work proposes an unsupervised learning framework for trajectory (sequence) outlier detection that combines ranking tests with user sequence models.
no code implementations • 11 Feb 2020 • Jianfei Gao, Mohamed A. Zahran, Amit Sheoran, Sonia Fahmy, Bruno Ribeiro
We consider the task of learning a parametric Continuous Time Markov Chain (CTMC) sequence model without examples of sequences, where the training data consists entirely of aggregate steady-state statistics.