Arşiv ve Dokümantasyon Merkezi
Dijital Arşivi

Autonomus multi-robot topological spatial cognition

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dc.contributor Ph.D. Program in Electrical and Electronic Engineering.
dc.contributor.advisor Bozma, H. Işıl.
dc.contributor.author Karaoğuz, Hakan.
dc.date.accessioned 2023-03-16T10:25:11Z
dc.date.available 2023-03-16T10:25:11Z
dc.date.issued 2015.
dc.identifier.other EE 2015 K37 PhD
dc.identifier.uri http://digitalarchive.boun.edu.tr/handle/123456789/13125
dc.description.abstract This thesis is concerned with topological spatial cognition in multi-robot systems. With topological reasoning, continuous space is discretized into a set of places that are spatially related. Thus, topological spatial cognition is associated with the acquisition, organization, utilization and revision of knowledge of places and their spatial relations. In turn, this can occur either through the direct experience of the robot or indirectly based on the knowledge of other robots. In this perspective, the problem is handled in three stages. First, efficient sensory data representation is studied and a model based on previously developed bubble space is presented. Next, the full range of spatial processing associated with direct experience is considered via introducing a topological spatial cognition (TSC) model. This model enables each robot to detect places, recognize them or learn them as necessary in a completely unsupervised, incremental and organized manner. The robot continually builds and utilizes its long-term spatial memory where knowledge of places and their spatial relations are retained in separate, but related parts. Finally, the problem of expanding each robot’s spatial cognition based on other robots’ knowledge is addressed and a model that enables each robot to merge its spatial memory with those of other robots is proposed. All of the proposed approaches are evaluated on benchmark data sets as well as on real robots. The experimental results demonstrate that robots are able to autonomously become cognizant of their surrounding through either their individual experience or that of other robots.
dc.format.extent 30 cm.
dc.publisher Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015.
dc.subject.lcsh Autonomous robots.
dc.title Autonomus multi-robot topological spatial cognition
dc.format.pages xvii, 139 leaves ;


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