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All Outputs (175)

System dependability modelling and analysis using AADL and HiP-HOPS (2012)
Presentation / Conference Contribution
Mian, Z., Bottaci, L., Papadopoulos, Y., & Biehl, M. System dependability modelling and analysis using AADL and HiP-HOPS

The Architecture Analysis and Design Language (AADL) is gaining widespread acceptance in aerospace, automobile and avionics industries for designing dependability-critical systems. The design process of dependable systems must address both cost and d... Read More about System dependability modelling and analysis using AADL and HiP-HOPS.

HEXOSYS II - Towards realization of light mass robotics for the hand (2012)
Presentation / Conference Contribution
Iqbal, J., Ahmad, O., & Malik, A. (2011, December). HEXOSYS II - Towards realization of light mass robotics for the hand. Presented at 2011 IEEE 14th International Multitopic Conference (INMIC), Karachi, Pakistan

This research presents a prototype of a direct-driven, optimized and light-mass hand exoskeleton that is designed to fit over the dorsal side of the hand, thus retaining palm free for interaction with real/virtual objects. The link lengths of the pro... Read More about HEXOSYS II - Towards realization of light mass robotics for the hand.

An Integrated Immersive Simulator for the Dismounted Soldier (2011)
Presentation / Conference Contribution
Cruz-Neira, C., Neumann, C., Odom, C., Reiners, D., Kathy, K., & Springer, J. An Integrated Immersive Simulator for the Dismounted Soldier

Immersive military training simulators have been available for over thirty years; but, most of these training simulators have been targeted at training forces on vehicle operations and missions (e.g., flight simulators). These simulators typically us... Read More about An Integrated Immersive Simulator for the Dismounted Soldier.

A multi-DOF robotic exoskeleton interface for hand motion assistance (2011)
Presentation / Conference Contribution
Iqbal, J., Tsagarakis, N. G., & Caldwell, D. G. (2011, August). A multi-DOF robotic exoskeleton interface for hand motion assistance. Presented at 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Boston, MA, USA

This paper outlines the design and development of a robotic exoskeleton based rehabilitation system. A portable direct-driven optimized hand exoskeleton system has been proposed. The optimization procedure primarily based on matching the exoskeleton... Read More about A multi-DOF robotic exoskeleton interface for hand motion assistance.

Spatiotemporal approach for tracking using rough entropy and frame subtraction (2011)
Presentation / Conference Contribution
Uma Shankar, B., & Chakraborty, D. Spatiotemporal approach for tracking using rough entropy and frame subtraction

We present here an approach for video image segmentation where spatial segmentation is based on rough sets and granular computing and temporal segmentation is done by consecutive frame subtraction. Then the intersection of the temporal segmentation a... Read More about Spatiotemporal approach for tracking using rough entropy and frame subtraction.

Estimation of cardiovascular patient risk with a Bayesian network (2011)
Presentation / Conference Contribution
Bohacik, J., & Davis, D. (2011, June). Estimation of cardiovascular patient risk with a Bayesian network. Presented at Transcom 2011

Cardiovascular decision-making support experiences increasing research interest of scientists.Ongoing collaborations between clinicians and computer scientists are looking at the application of datamining techniques to the area of individual patient... Read More about Estimation of cardiovascular patient risk with a Bayesian network.

An integrated pipeline to create and experience compelling scenarios in virtual reality (2011)
Presentation / Conference Contribution
Springer, J. P., Neumann, C., Reiners, D., & Cruz-Neira, C. An integrated pipeline to create and experience compelling scenarios in virtual reality. Presented at Three-Dimensional Imaging, Interaction, and Measurement

One of the main barriers to create and use compelling scenarios in virtual reality is the complexity and time-consuming efforts for modeling, element integration, and the software development to properly display and interact with the content in the a... Read More about An integrated pipeline to create and experience compelling scenarios in virtual reality.

A hierarchical method for the reduction of temporal expressions in Pandora (2010)
Presentation / Conference Contribution
Papadopoulos, Y., & Walker, M. A hierarchical method for the reduction of temporal expressions in Pandora. Presented at Proceedings of the First Workshop on DYnamic Aspects in DEpendability Models for Fault-Tolerant Systems - DYADEM-FTS '10

Fault Tree Analysis (FTA) is a popular safety analysis technique used to determine the logical combination of events needed to cause a particular system failure. However, FTA is purely combinatorial and cannot analyse the effects of sequences of even... Read More about A hierarchical method for the reduction of temporal expressions in Pandora.

Automatic allocation of safety integrity levels (2010)
Presentation / Conference Contribution
Papadopoulos, Y., Walker, M., Reiser, M.-O., Weber, M., Chen, D., Törngren, M., Servat, D., Abele, A., Stappert, F., Lonn, H., Berntsson, L., Johansson, R., Tagliabo, F., Torchiaro, S., & Sandberg, A. (2010, April). Automatic allocation of safety integrity levels. Presented at Proceedings of the 1st Workshop on Critical Automotive applications Robustness & Safety - CARS '10

In this paper, we describe a concept for the automatic allocationof general Safety Integrity Levels (SILs) to subsystems andcomponents of complex hierarchical networked architectures thatdeliver sets of safety critical functions. The concept is gener... Read More about Automatic allocation of safety integrity levels.

Dysphonia measures in parkinson's disease and their use in prediction of its progression (2010)
Presentation / Conference Contribution
Kambhampati, C., Sarangdhar, M., & Poolsawad, N. (2010, October). Dysphonia measures in parkinson's disease and their use in prediction of its progression. Presented at International Conference on Knowledge Engineering and Ontology Development, Valencia, Spain

Parkinson's Disease (PD) is a neurodegenerative disorder that impairs the motor skills, speech and general muscle coordination. The progression of PD is assessed using a clinically defined rating scale known as Unified Parkinson's Disease Rating Scal... Read More about Dysphonia measures in parkinson's disease and their use in prediction of its progression.

Stimulus reconstruction from a Hodgkin-Huxley neural response: A numerical solution (2010)
Presentation / Conference Contribution
Sarangdhar, M., & Kambhampati, C. (2010, June). Stimulus reconstruction from a Hodgkin-Huxley neural response: A numerical solution. Presented at World Congress on Engineering 2010

Neural responses are the fundamental expressions of any neural activity. Information carried by a neural response is determined by the nature of a neural activity. In majority of cases the underlying stimulus that triggers it remains largely... Read More about Stimulus reconstruction from a Hodgkin-Huxley neural response: A numerical solution.

Local hybrid level-set method for MRA image segmentation (2010)
Presentation / Conference Contribution
Hong, Q., Li, Q., & Tian, J. (2010, June). Local hybrid level-set method for MRA image segmentation. Presented at 10th IEEE International Conference on Computer and Information Technology, CIT-2010, 7th IEEE International Conference on Embedded Software and Systems, ICESS-2010, ScalCom-2010

In this paper, a local hybrid level-set method for medical image segmentation is presented. In proposed method, a locally fitted binary energy function is introduced into the hybrid level-set framework proposed by Zhang et al.. Compared with the glob... Read More about Local hybrid level-set method for MRA image segmentation.

Dynamic effect of perfect preventive maintenance on system reliability and cost using HiP-HOPS (2010)
Presentation / Conference Contribution
Nggada, S. H., Parker, D. J., & Papadopoulos, Y. I. Dynamic effect of perfect preventive maintenance on system reliability and cost using HiP-HOPS

The occurrence of failure in a safety critical engineering system can be reduced through the use of preventive maintenance (PM). Each time a component of the system is maintained its effective age is reduced; the extent of this age reduction depends... Read More about Dynamic effect of perfect preventive maintenance on system reliability and cost using HiP-HOPS.

GN-DTD: Graphical notation for describing XML documents (2010)
Presentation / Conference Contribution
Zainol, Z., & Wang, B. (2010, April). GN-DTD: Graphical notation for describing XML documents. Presented at 2nd International Conference on Advances in Databases, Knowledge, and Data Applications, DBKDA 2010

This paper presents a graphical approach to model XML documents based on a Data Type Documentation called Graphical Notations-Data Type Documentation (GN-DTD). GN-DTD allows us to capture syntax and semantic of XML documents in a simple way but preci... Read More about GN-DTD: Graphical notation for describing XML documents.

A translation of state machines to temporal fault trees (2010)
Presentation / Conference Contribution
Papadopoulos, Y., Mahmud, N., & Walker, M. (2010, June). A translation of state machines to temporal fault trees. Presented at 2010 International Conference on Dependable Systems and Networks Workshops (DSN-W)

State Machines (SMs) are increasingly being used to gain a better understanding of the failure behaviour of safety-critical systems. In dependability analysis, SMs are translated to other models, such as Generalized Stochastic Petri Nets (GSPNs) or c... Read More about A translation of state machines to temporal fault trees.

Beyond desktop point and click: Immersive walkthrough of aerospace structures (2010)
Presentation / Conference Contribution
Courter, D., Springer, J. P., Neumann, C., Cruz-Neira, C., & Reiners, D. (2010, March). Beyond desktop point and click: Immersive walkthrough of aerospace structures. Presented at 2010 IEEE Aerospace Conference, Big Sky, MT, USA

There are a number of 3D applications that have shown the benefits of using visualization techniques for virtual prototyping and education in aerospace engineering. However,these applications typically run only on desktop computers and user interacti... Read More about Beyond desktop point and click: Immersive walkthrough of aerospace structures.

A language for failure patterns and application in safety analysis (2008)
Presentation / Conference Contribution
Wolforth, I., Walker, M., & Papadopoulos, Y. A language for failure patterns and application in safety analysis. Presented at 2008 Third International Conference on Dependability of Computer Systems DepCoS-RELCOMEX

Components and families of components in mechatronic systems often exhibit failure characteristics that are independent of system context and repeatable across applications. In this paper, we show that it is possible to capture and reuse such pattern... Read More about A language for failure patterns and application in safety analysis.

Semi automatic failure analysis based on simulation models (2008)
Presentation / Conference Contribution
Hamann, R., Uhlig, A., Papadopoulos, Y., Rüde, E., Grätz, U., Walker, M., & Lien, R. (2018, June). Semi automatic failure analysis based on simulation models. Presented at Volume 2: Structures, Safety and Reliability

Classical risk assessment and risk management which is gaining importance in many industries is usually based on well defined processes and uses techniques like FTA and FMEA. However, classical risk analysis techniques like FTA and FMEA should ideall... Read More about Semi automatic failure analysis based on simulation models.