3,969 research outputs found

    An information-driven architecture for cognitive systems research

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    Wrede S. An information-driven architecture for cognitive systems research. Bielefeld (Germany): Bielefeld University; 2008.With computer science more and more leaving the traits of solitary algorithms and distinct disciplines towards complex intelligent and integrated systems, challenging research questions are in reach to be explored in novel application scenarios. Under the term "cognitive systems" and its subfields of "cognitive robotics" and "cognitive vision", research recently made a significant leap forward regarding these challenges. Experimental cognitive systems research is thus characterized by a flexible composition of different algorithms and the development of interdisciplinary models for artificial cognition. Integrated cognitive systems allow us to address scientific questions that go far beyond what can be achieved with solitary algorithms. For example, such systems include personal robot "companions" or assistance systems that are embedded in the world and permit interaction with humans and their environment. Integrated cognitive systems allow us to test hypothetical models of cognition in the "real" world. Owing to the innate complexity of these systems, questions of software integration and software architecture have become research activities in their own right. Consequently, topics and methods known from software and systems engineering need to be adopted for research on experimental cognitive systems. This thesis addresses the questions how the complexity in software architectures for cognitive systems can be reduced and how joint integration in large-scale research projects can be facilitated. It approaches these questions from three viewpoints: the functional, collaborative, and engineering viewpoint. Acknowledging their importance leads to the design of a coherent and comprehensive architectural concept that is introduced with this dissertation. This approach fuses paradigms of event-driven and service-oriented architectures with domain-specific support for cognitive systems, yielding a novel concept: information-driven integration. The resulting software architecture facilitates joint development and integration by providing on the one hand good support for the functional requirements of experimental cognitive systems and on the other hand by explicitly considering the peculiarities of research environments as integration contexts. The application of the information-driven integration architecture in various cognitive systems projects is presented as strong evidence for the appropriateness of its design and implementation. This thesis bridges the gap between single algorithms and their respective component developers on the one side, and system integration and evaluation on the other by means of a novel integrating approach supporting the collaborative construction of experimental cognitive systems

    Software Abstractions for Simulation and Control of a Continuum Robot

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    Nordmann A, Rolf M, Wrede S. Software Abstractions for Simulation and Control of a Continuum Robot. In: SIMPAR2012 - SIMULATION, MODELING, and PROGRAMMING for AUTONOMOUS ROBOTS. 2012

    A Domain-Specific Language and Simulation Architecture for the Oncilla Robot

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    Nordmann A, Tuleu A, Wrede S. A Domain-Specific Language and Simulation Architecture for the Oncilla Robot. In: ICRA 2013 Workshop on Developments of Simulation Tools for Robotics & Biomechanics. 2013

    A Domain-Specific Language and Simulation Architecture for Motor Skill Exploration

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    Nordmann A, Tuleu A, Wrede S. A Domain-Specific Language and Simulation Architecture for Motor Skill Exploration. Presented at the Workshop on Software Development and Integration in Robotics (SDIR), Karlsruhe

    A User Study on Kinesthetic Teaching of Redundant Robots in Task and Configuration Space

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    Wrede S, Emmerich C, Grünberg R, Nordmann A, Swadzba A, Steil JJ. A User Study on Kinesthetic Teaching of Redundant Robots in Task and Configuration Space. Journal of Human-Robot Interaction (JHRI). 2013;2(1):56-81

    A Domain-Specific Language for Rich Motor Skill Architectures

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    Nordmann A, Wrede S. A Domain-Specific Language for Rich Motor Skill Architectures. Presented at the 3rd International Workshop on Domain-Specific Languages and Models for Robotic Systems (DSLRob), Tsukuba, Japan.Model-driven software development is a promising way to cope with the complexity of system integration in advanced robotics, as it already demonstrated its benefits in domains with comparably challenging system integration requirements. This paper reports on work in progress in this area which aims to improve the research and experimentation process in a collaborative research project developing motor skill architectures for compliant robots. Our goal is to establish a model-driven development process throughout the project around a domain-specific language (DSL) facilitating the compact description of adaptive modular architectures for rich motor skills. Incorporating further languages for other aspects (e.g. mapping to a technical component architecture) the approach allows not only the formal description of motor skill architectures but also automated code-generation for experimentation on technical robot platforms. This paper reports on a first case study exemplifying how the developed AMARSi DSL helps to conceptualize different architectural approaches and to identify their similarities and differences

    Episode 35: Alexis Castellanos, Author of “Isla to Island”, and Her Panel Presentation during the Operación Pedro Pan Two-Day Event

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    In Part 1 of “Operación Pedro Pan: The Voices and Stories of Cuba’s Child Exodus—A Knights HistoryCast Mini-Series,” the Department of History’s Sebastian Garcia talked with Alexis Castellanos, an author, illustrator, graphic novelist, and a panelist at the esteemed, conspicuous, and powerful “Operación Pedro Pan: Honoring the Cultural, Historical Legacy of Cuba’s Child Exodus” Two-Day Program that Florida Humanities, UCF’s Department of English and Department of Modern Languages and Literatures sponsored (see https://cah.ucf.edu/pedro-pan/ for more details on sponsors and the program in general). Sebastian structured this specific episode on Alexis Castellanos’ Isla to Island, a wordless graphic novel grounded by her personal family history and the history of Operación Pedro Pan (Operation Peter Pan). By analyzing such a historic event through the medium of fiction, Sebastian argued that this is one of the most unique Knights HistoryCast episodes of all time. Naturally, their conversation expanded to what she talked about during her panel presentation in Panel One, Day 1 of the event that featured “internationally renowned scholars that discussed the political, historical, and cultural legacy of Operación Pedro Pan (1960-1962).” (https://cah.ucf.edu/pedro-pan/) To purchase Isla to Island (strongly recommend), check out: https://islatoisland.com/. To find out more about Alexis and her professional work, check out her website at https://alexiscastellanos.com/https://stars.library.ucf.edu/knightshistorycast/1034/thumbnail.jp

    An Analysis of Behaviour Driven Requirement Specification for Robotic Competitions

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    Nguyen M, Wrede S, Hochgeschwender N. An Analysis of Behaviour Driven Requirement Specification for Robotic Competitions. In: International Workshop on Robotics Software Engineering (RoSE’23) co-located with International Conference on Software Engineering (ICSE'2023). Piscataway, NJ: IEEE; 2023

    Archaea in Symbioses

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    During the last few years, the analysis of microbial diversity in various habitats greatly increased our knowledge on the kingdom Archaea. At the same time, we became aware of the multiple ways in which Archaea may interact with each other and with organisms of other kingdoms. The large group of euryarchaeal methanogens and their methane oxidizing relatives, in particular, take part in essential steps of the global methane cycle. Both of these processes, which are in reverse to each other, are partially conducted in a symbiotic interaction with different partners, either ciliates and xylophagous animals or sulfate reducing bacteria. Other symbiotic interactions are mostly of unknown ecological significance but depend on highly specific mechanisms. This paper will give an overview on interactions between Archaea and other organisms and will point out the ecological relevance of these symbiotic processes, as long as these have been already recognized

    Remembering interaction episodes: an unsupervised learning approach for a humanoid robot

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    Gieselmann S, Hanheide M, Wrede B. Remembering interaction episodes: an unsupervised learning approach for a humanoid robot. In: Humanoids 2010. Nashville/Tennessee; 2010
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