Conference Paper

# A Qualitative Representation of Trajectory Pairs.

Conference: Proceedings of the 16th Eureopean Conference on Artificial Intelligence, ECAI'2004, including Prestigious Applicants of Intelligent Systems, PAIS 2004, Valencia, Spain, August 22-27, 2004

Source: DBLP

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**ABSTRACT:**Research has been done in generating, indexing, modelling and querying network-based moving objects. However, little work has been done in building a calculus of relations between these objects. In Van de Weghe et al. (2004b) an empirical approach based on an illustrative example is worked out in order to be able to represent and reason about the relative trajectories of pairs of objects moving along a road network. The approach has been called the Qualitative Trajectory Calculus along a road Network (QTC-N). This paper gives a more theorectical and analytical view on this calculus. -
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**ABSTRACT:**This paper introduces a qualitative approach to the analysis and comparison of the shape of polygonsGeoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004 IEEE International; 10/2004 -
##### Conference Paper: Qualitative Modeling of Vehicle Behavior for Scenario Parsing

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**ABSTRACT:**In most present frontal collision warning systems (FCWS), the warning algorithm mainly depends on simple combination of linearly predicted vehicle-motion parameters. Such systems suffer from high false-alarm-rate due to the incapability of identifying different transportation scenarios. Scenario parsing deals with such problems by analyzing transportation scenarios and applying specific threat assessment algorithm to each scenario. In this paper, approaches of symbolization and pattern/rule data mining are presented. Real-data experiments demonstrate that the approaches are effectiveIntelligent Transportation Systems Conference, 2006. ITSC '06. IEEE; 10/2006

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