Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

Interactive concepts for shaping generative models of spatial behavior

: Hug, Ronny; Hübner, Wolfgang; Arens, Michael


Institute of Electrical and Electronics Engineers -IEEE-; IEEE Computational Intelligence Society:
IEEE 4th International Conference on Soft Computing & Machine Intelligence, ISCMI 2017 : November 23-24, 2017, Republic of Mauritius
Piscataway, NJ: IEEE, 2017
ISBN: 978-1-5386-1314-6
ISBN: 978-1-5386-1313-9
ISBN: 978-1-5386-1315-3
International Conference on Soft Computing & Machine Intelligence (ISCMI) <4, 2017, Mauritius>
Conference Paper
Fraunhofer IOSB ()
interactive learning; human-computer interaction

A technique widely used in video based situation assessment, and especially in anomaly detection, is the analysis of spatial behavior in terms of motion profiles recorded along trajectories. An intuitive assessment metric is the deviation from normal behavior, where generative models are a natural choice for capturing the underlying statistics. Applying such outlier methods in open world scenarios has the drawback that long observation times are required, in order to fully determine the model, while underdetermined models are very prone to generate non-intuitive or wrong results. In order to address this problem, the usage of interactive concepts for supporting the learning process and refining learned models is proposed. Thereby, the method keeps track of automatically integrated observations and stochastic priors generated by examples provided by the user. Examples can be given in terms of individual labeled samples, or in terms of complex pdfs. The feasibility of the proposed approach is illustrated on the BIWI Walking Pedestrians dataset, using partitioned Gaussian mixture models as the generative model.