no code implementations • 13 Jul 2022 • Natnael A. Wondimu, Cédric Buche, Ubbo Visser
In this paper, we provide a comprehensive analysis of the state-of-the-art of iML.
no code implementations • 8 Mar 2021 • Katarzyna Pasternak, Zishi Wu, Ubbo Visser, Christine Lisetti
Our contribution is the complex integration of an expressive ECA, able to track its interlocutor's face, and to mirror his/her facial expressions and head movements in real time, integrated with a human support robot such that the robot and the agent are fully aware of each others', and of the users', nonverbals cues.
no code implementations • 24 Dec 2014 • Jia Xu, Patrick Shironoshita, Ubbo Visser, Nigel John, Mansur Kabuka
Efficiently querying Description Logic (DL) ontologies is becoming a vital task in various data-intensive DL applications.
1 code implementation • 18 Feb 2014 • Saminda Abeyruwan, Andreas Seekircher, Ubbo Visser
Collecting and maintaining accurate world knowledge in a dynamic, complex, adversarial, and stochastic environment such as the RoboCup 3D Soccer Simulation is a challenging task.
no code implementations • 21 May 2013 • Jia Xu, Patrick Shironoshita, Ubbo Visser, Nigel John, Mansur Kabuka
The extraction of logically-independent fragments out of an ontology ABox can be useful for solving the tractability problem of querying ontologies with large ABoxes.