Abstract
Cognition does not only depend on bottom-up sensor feature abstraction, but also relies on contextual information being passed top-down. Context is higher level information that helps to predict belief states at lower levels. The main contribution of this paper is to provide a formalisation of perceptual context and its integration into a new process model for cognitive hierarchies. Several simple instantiations of a cognitive hierarchy are used to illustrate the role of context. Notably, we demonstrate the use context in a novel approach to visually track the pose of rigid objects with just a 2D camera.
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Notes
- 1.
Both of these examples appear in [16] but are also well-known in the cognitive psychology literature.
- 2.
It is of course intuitive in this simple example that as \({N}_2\) has the benefit of the knowledge of the transition dynamics of the object it can better estimate its position and provide this context to direct the camera.
- 3.
The pose of a rigid object in 3D space has 6\(^\circ \) of freedom, three describing its translated position, and three the rotation or orientation, relative to a reference pose.
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Acknowledgments
The alphabetically last author wants to thank Franz Baader for many years of successful collegial collaboration, in particular within the joint research cluster on Logic-Based Knowledge Representation that was funded by the German Research Foundation (DFG) over many years. This centre would never have come to fruition without Franz’s relentless pursuit of excellence not only in the projects that he was directly involved in but also with the cluster as a whole. One of the most pleasant experiences that we shared during that time was our journey to IJCAI’09 in Pasadena, which I am sure Franz remembers.
This material is based upon work supported by the Asian Office of Aerospace Research and Development (AOARD) under Award No: FA2386-15-1-0005. This research was also supported under Australian Research Council’s (ARC) Discovery Projects funding scheme (project number DP 150103035).
Disclaimer. Any opinions, findings, and conclusions or recommendations expressed in this publication are those of the authors and do not necessarily reflect the views of the AOARD.
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Hengst, B., Pagnucco, M., Rajaratnam, D., Sammut, C., Thielscher, M. (2019). Perceptual Context in Cognitive Hierarchies. In: Lutz, C., Sattler, U., Tinelli, C., Turhan, AY., Wolter, F. (eds) Description Logic, Theory Combination, and All That. Lecture Notes in Computer Science(), vol 11560. Springer, Cham. https://doi.org/10.1007/978-3-030-22102-7_16
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