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International Conference on Applied Sciences 2017, ICAS 2017

作者： Spunei, E. Piroi, I. Chioncel, C.P. Piroi, F. Eftimie Murgu University of Resita Department of Electrical Engineering and Informatics Traian Vuia str. no. 1-4 Resita320085 Romania Vienna University of Technology Institute of Software Technology and Interactive Systems Viena Austria

This work presents a diagnosis method for railway traffic security installations. More specifically, the authors present a series of diagnosis charts for passing signals on a railway block equipped with an automatic block signaling installation. These charts are based on the exploitation electric schemes, and are subsequently used to develop a diagnosis software package. The thus developed software package contributes substantially to a reduction of failure detection and remedy for these types of installation faults. The use of the software package eliminates making wrong decisions in the fault detection process, decisions that may result in longer remedy times and, sometimes, to railway traffic events. © Published under licence by IOP Publishing Ltd.

关键词： software packages

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A multi-modal deep neural network approach to bird-song identification

arXiv

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arXiv 2018年

作者： Fazekas, Botond Schindler, Alexander Lidy, Thomas Rauber, Andreas Vienna University of Technology Institute of Software Technology and Interactive Systems Vienna Austria Austrian Institute of Technology Center for Digital Safety and Security Vienna Austria

We present a multi-modal Deep Neural Network (DNN) approach for bird song identification. The presented approach takes both audio samples and metadata as input. The audio is fed into a Convolutional Neural Network (CNN) using four convolutional layers. The additionally provided metadata is processed using fully connected layers. The flattened convolutional layers and the fully connected layer of the metadata are joined and fed into a fully connected layer. The resulting architecture achieved 2., 3. and 4. rank in the BirdCLEF2017 task in various training configurations. Copyright © 2018, The Authors. All rights reserved.

关键词： Metadata

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Discovering new monte carlo noise filters with genetic programming 38

Discovering new monte carlo noise filters with genetic progr...

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38th Annual Conference on European Association for Computer Graphics, EUROGRAPHICS 2017

作者： Kán, Peter Davletaliyev, Maxim Kaufmann, Hannes Institute of Software Technology and Interactive Systems Vienna University of Technology Vienna Austria

This paper presents a novel method for the discovery of new analytical filters suitable for filtering of noise in Monte Carlo rendering. Our method utilizes genetic programming to evolve the set of analytical filtering expressions with the goal to minimize image error in training scenes. We show that genetic programming is capable of learning new filtering expressions with quality comparable to state of the art noise filters in Monte Carlo rendering. Additionally, the analytical nature of the resulting expressions enables the run-times one order of magnitude faster than compared state of the art methods. Finally, we present a new analytical filter discovered by our method which is suitable for filtering of Monte Carlo noise in diffuse scenes. Eurographics Proceedings © 2017 The Eurographics Association.

关键词： Genetic programming

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Modelling and Analysing Resilient Cyber-Physical systems 14

Modelling and Analysing Resilient Cyber-Physical Systems

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IEEE/ACM 14th International Symposium on software Engineering for Adaptive and Self-Managing systems (SEAMS)

作者： Bennaceur, Amel Ghezzi, Carlo Tei, Kenji Kehrer, Timo Weyns, Danny Calinescu, Radu Dustdar, Schahram Hu, Zhenjiang Honiden, Shinichi Ishikawa, Fuyuki Jin, Zhi Kramer, Jeffrey Litoiu, Marin Loreti, Michele Moreno, Gabriel Muller, Hausi Nenzi, Laura Nuseibeh, Bashar Pasquale, Liliana Reisig, Wolfgang Schmidt, Heinz Tsigkanos, Christos Zhao, Haiyan The Open University Politecnico di Milano National Institute of Informatics Humboldt-University of Berlin Katholieke Universiteit Leuven University of York Vienna University of Technology Peking University Imperial College London York University University of Camerino Software Engineering Institute CMU University of Victoria University of Trieste The Open University (United Kingdom) & Lero (Ireland) University College Dublin Lero Humboldt University Berlin RMIT Australia

ISBN: (纸本)9781728133683

From smart buildings to medical devices to smart nations, software systems increasingly integrate computation, networking, and interaction with the physical environment. These systems are known as Cyber-Physical systems (CPS). While these systems open new opportunities to deliver improved quality of life for people and reinvigorate computing, their engineering is a difficult problem given the level of heterogeneity and dynamism they exhibit. While progress has been made, we argue that complexity is now at a level such that existing approaches need a major re-think to define principles and associated techniques for CPS. In this paper, we identify research challenges when modelling, analysing and engineering CPS. We focus on three key topics: theoretical foundations of CPS, self-adaptation methods for CPS, and exemplars of CPS serving as a research vehicle shared by a larger community. For each topic, we present an overview and suggest future research directions, thereby focusing on selected challenges. This paper is one of the results of the Shonan Seminar 118 on Modelling and Analysing Resilient Cyber-Physical systems, which took place in December 2018.

关键词： Analytical models software engineering Adaptation models Ecosystems Seminars software systems

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UML2OPC-UATransforming UML Class Diagrams to OPC UA Information Models

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Procedia CIRP 2018年 67卷 128-133页

作者： Florian Pauker Sabine Wolny Solmaz Mansour Fallah Manuel Wimmer Institute for Production Engineering and Laser Technology Getreidemarkt 9 1060 Vienna Austria Institute of Software Technology and Interactive Systems TU Wien Favoritenstrae 9-11/188-3 1040 Vienna Austria

The emergence of cyber physical systems in the manufacturing domain creates new requirements for shop floor devices. Due to their diverse structure, buildup a seamless communication is one major challenge. In recent years, several communication standards, e.g., OPC-UA, tried to tackle this issue. Until now, they have not fully developed their potential, because of inherent implementation complexity and specific formats, although well-known modeling standards such as UML exist. The presented approach aims to overcome this complexity by enabling an automatic transformation from UML class diagrams to OPC-UA information models using ATL and by extending UML to guarantee information preserving transformations.

关键词： UML OPC UA ATL MDE

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Digital playbook - A teaching tool for American football

Digital playbook - A teaching tool for American football

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Computer Vision Applications in Sports 2017

作者： Vorstandlechner, Mario Gelautz, Margrit Putz, Christoph Institute of Software Technology and Interactive Systems Vienna University of Technology Austria AFC Vienna Vikings Austria

A playbook in American Football can consist of hundreds of plays, and to learn each play and the corresponding assignments and responsibilities is a big challenge for the players. In this paper we propose a teaching tool for coaches in American Football based on computer vision and visualization techniques which eases the learning process and helps the players gain deeper knowledge of the underlying concepts. Coaches can create, manipulate and animate plays with adjustable parameters which affect the player actions in the animation. The general player behaviors and interactions between players are modeled based on expert knowledge. The final goal of the framework is to compare the theoretical concepts with their practical implementation in training and game, by using computer vision algorithms which extract spatio-temporal motion patterns from corresponding real video material. First results indicate that the software can be used effectively by coaches and the players' understanding of critical moments of the play can be increased with the animation system. © 2017, Society for Imaging Science and technology.

关键词： Animation

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A multi-modal deep neural network approach to bird-song identification 18

A multi-modal deep neural network approach to bird-song iden...

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18th Working Notes of CLEF Conference and Labs of the Evaluation Forum, CLEF 2017

关键词： Metadata

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Connectivity as a prior challenge in establishing CPPS on basis of heterogeneous IT-software environments

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Procedia Manufacturing 2019年 31卷 370-376页

作者： Stefan Trabesinger Rudolf Pichler Daniel Schall Richard Gfrerer Institute of Production Engineering Graz University of Technology Inffeldgasse 25f Graz 8010 Austria Siemens AG Austria Siemensstraße 90 1210 Vienna Austria T-Systems Austria GesmbH Rennweg 97-99 1030 Vienna Austria

More and more elements in a modern production system are becoming smart devices and it is reasonable to integrate them into a Cyber Physical Production System (CPPS) in a consistent manner. There is the broad goal of many industrial players to open the rich potential of the Industrial Internet of Things (IIoT), which has to be fast, secure and adaptive. The growing number of “things” in a production system requires satisfying connectivity solutions that are different to an easy coming “Peer-to-Peer architecture (P2P)”. The approach followed at the [email protected] – the Learning Factory of Graz university of technology in Austria – to achieve such an integration is to deploy an Enterprise Service Bus (ESB), which is at the core of Service Oriented Architecture (SOA). The goal is to integrate three main software applications including the Product Lifecycle Management (PLM), the Enterprise Resource Planning (ERP) and the Management Execution System (MES). The additional challenge in this project is that these mentioned main applications are all provided by different suppliers. The selected SOA approach provides the basis for a scalable and extensible solution via Connectivity Modules and standardized interfaces. The [email protected] validates this SOA approach by applying it to a real and fully operational manufacturing line. The [email protected] is not only a learning factory but rather an open ecosystem by offering both students and researchers as well as industrial partners the ability to perform research on this subject. It is thus the ideal place to study the challenges and to understand the benefits of pushing a CPPS to a mature level in terms of connectivity in a manufacturing context.

关键词： CPPS Connectivity Smart Factory Peer-to-peer architecture (P2P) Reference architecture Service oriented architecture SOA Enterprise Service Bus ESB OPC UA

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Student retention: Towards defining measures for improved quality of teaching and learning in the first year of computer science studies 11th

Student retention: Towards defining measures for improved qu...

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11th IFIP TC 3 World Conference on Computers and Education, WCCE 2017

作者： Standl, Bernhard Wetzinger, Elisabeth Futschek, Gerald Institute of Software Technology and Interactive Systems TU Wien Vienna Austria

ISBN: (纸本)9783319743097

At the Faculty of Computer Science at the TU Wien, vienna, Austria, the studies of computer science (CS) face two issues in the first year: a gender gap and a high student dropout rate. In order to tackle these problems, the faculty has set up a project called START Informatics to analyse the status quo, to identify potential pitfalls, to take actions and to develop measures to improve the quality of the first year of CS studies. Therefore, we will first examine the current situation in teaching with a mixed methods approach comprising lecture observations, student and teacher interviews and a large-scale questionnaire for first year students. As a result, the objective of the project is to describe recommendations and measures to improve the learning and teaching experience with a focus on student retention and potential gender issues. © 2017, IFIP International Federation for Information Processing.

关键词： Students

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Performance modelling and analysis for vehicle-to-anything connectivity in representative high-interference channels

Performance modelling and analysis for vehicle-to-anything c...

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作者： Blazek, Thomas Ghiaasi, Golsa Backfrieder, Christian Ostermayer, Gerald Mecklenbraüker, Christoph F. Institute of Telecommunications TU Wien Gusshausstraβe 25 Vienna1040 Austria Department of Electronic Systems NTNU Norwegian University of Science and Technology IES TrondheimNO-7491 Norway Research Group Networks and Mobility University of Applied Sciences Upper Austria FH1 Softwarepark 11 Hagenberg4232 Austria

All too often, the performance of vehicular communications is benchmarked merely for a single link. A major challenge for benchmarking the performance of multiple interacting vehicles is the definition of repeatable vehicular scenarios. In this study, the authors propose and discuss an approach for performance analysis of the IEEE 802.11p standard in urban interference channels, by linking network simulations to a software Defined Radio (SDR) setup. This approach provides communication performance measurements in the worst-case interference scenario caused by an urban traffic jam. They do this by starting out with vehicular traffic flow simulations and continue to model the medium access. They furthermore introduce an algorithm to reduce the complexity of the communication network while retaining its properties. Finally, they use a setup of SDR encompassing the communication nodes and channel emulators that emulate urban channels to measure the packet level performance as a function of signal-to-interference ratio and distance to a receiver under urban traffic conditions. © 2019 The Institution of Engineering and technology.

关键词： software radio

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