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5th International Conference on Pattern Recognition Applications and Methods, ICPRAM 2016

作者： Klauninger, Bert Eidenberger, Horst Institute for Interactive Media Systems Vienna University of Technology Vienna Austria

ISBN: (纸本)9789897581731

Based on recent findings from the field of human similarity perception, we propose a dual process model (DPM) of taxonomic and thematic similarity assessment which can be utilised in machine learning applications. Taxonomic reasoning is related to predicate based measures (counting) whereas thematic reasoning is mostly associated with metric distances (measuring). We suggest a procedure that combines both processes into a single similarity kernel. For each feature dimension of the observational data, an optimal measure is selected by a Greedy algorithm: A set of possible measures is tested, and the one that leads to improved classification performance of the whole model is denoted. These measures are combined into a single SVM kernel by means of generalisation (converting distances into similarities) and quantisation (applying predicate based measures to interval scale data). We then demonstrate how to apply our model to a classification problem of MPEG-7 features from a test set of images. Evaluation shows that the performance of the DPM kernel is superior to those of the standard SVM kernels. This supports our theory that the DPM comes closer to human similarity judgment than any singular measure, and it motivates our suggestion to employ the DPM not only in image retrieval but also in related tasks. © Copyright 2016 by SCITEPRESS - Science and technology Publications, Lda. All rights reserved.

关键词： Image retrieval

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A multiple-perspective analysis of doctoral interdisciplinarity 15

A multiple-perspective analysis of doctoral interdisciplinar...

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15th International Conference on Information technology Based Higher Education and Training, ITHET 2016

作者： Del Carmen Calatrava Moreno, Maria Kynclova, Petra Werthner, Hannes Electronic Commerce Group Institute of Software Technology and Interactive Systems Vienna University of Technology Austria Institute of Statistics and Mathematical Methods in Economics Vienna University of Technology Austria

ISBN: (纸本)9781509007783

Interdisciplinary and assessment initiatives are two parallel educational paradigms that are being increasingly implemented in higher education institutions. Our study combines these two paradigms in order to assess the significance and performance of factors and processes that facilitate interdisci-plinarity at the doctoral level. Using the 360-degree feedback methodology, we integrate the perspectives of different academic stakeholders in the assessment, namely students, post-doctoral researchers, professors, directors, visiting professors and research funding agencies. Therefore, this study not only provides a global assessment but also informative intermediate results, such as analyses on the alignment and discrepancies of stakeholders as well as the identification of priorities for improvement. This paper presents the development and implementation of this multiple-perspective assessment within an academic context and discusses the results of its application in a European faculty of computer science where several doctoral programs with different approaches to interdisciplinarity co-exist. © 2016 IEEE.

关键词： Application programs

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A hybrid sound model for 3D audio games with real walking 16

A hybrid sound model for 3D audio games with real walking

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29th International Conference on Computer Animation and Social Agents, CASA 2016

作者： Podkosova, Iana Urbanek, Michael Kaufmann, Hannes TU Wien Institute of Software Technology and Interactive Systems Austria

ISBN: (纸本)9781595930361

Spatialized audio is the only output that players receive in audio games. In order to provide a realistic view of the environment, it has to be of superior quality in terms of immersion and realism. Complex sound models can be used to generate realistic sound effects, including reections and reverb. An implementation of a hybrid sound model based on the ODEON approach is introduced and adapted for realtime sound calculations. This model is evaluated and compared to a baseline model usually used in audio games in a user study in a virtual reality environment. The results show that the implemented hybrid model allows players to adjust to the game faster and provides them more support in avoiding virtual obstacles in simple room geometries than the baseline model. © 2016 ACM.

关键词： Virtual reality

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Requirements for Product-service Description at e-marketplaces in the Manufacturing Domain

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Procedia CIRP 2016年 47卷 406-411页

作者： Wolfgang Bauer Jürgen Dorn Institute of Software Technology and Interactive Systems Vienna University of Technology Austria

Industrial procurement is exposed to an increased service-oriented supplier market. However, industrial e-marketplaces for product-services that are accepted by buying experts are rare. Possible buyer benefits of e-markets such as access to a wider range of markets, accumulation of required information, and increase of market transparency cannot be utilized. Currently, product-services are at best traded within closed silos that offer mainly manual search and comparison capabilities through a web storefront. A lack of existing “generic” industry-sector-specific concepts for service description is a main problem that the potential of e-commerce is not utilized for product-services. This article analyzes the requirements for service representation at e-markets regarding the manufacturing domain. State-of-the-art concepts of business service description are considered at the beginning of this research. Because of the heterogeneity of product-services, a case study was conducted in order to identify relevant product-services in the manufacturing domain. In order to study a real case scenario, a “first-tier supplier” in the automotive industry was used in this research study. This company is specialized in systems engineering and systems serial assembly. Typical product-services of this company source are manufactured products needed for serial production, for example, casting, milling, turning, or injecting molding parts, alongside a wide range of services. Investigating the professional purchasing department was necessary to analyze the requirements in service description throughout the complete buying process, commencing with the conceptual product design stage until the serial product delivery.

关键词： product-service description product-service advertisements manufacturing services service capability description manufacturing service USDL service marketplace electronic marketplace

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Improving PSS Costing Based on Customer Integration

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Procedia CIRP 2016年 47卷 36-41页

作者： Wolfgang Seiringer Wolfgang Bauer Institute of Software Technology and Interactive Systems Vienna University of Technology Austria

A company's economic survivability depends on the trust customers have into the company and its offered solutions. Consequently a company tries to act as a trustworthiness business partner. A difficult task, when customers cannot check the outcome and quality of an offered solution. Especially for Product Service systems (PSS), the service part represents such an intangible performance, which cannot be used and verified by customers before consumption. Consequently, customers must trust a company's promised performance quality before they can experience the service. Service production always involves the customer into the service provision process, as the value is co-created. That is why, the service provider's performance and thus its service production costs rely trusting a customer's input. As trust plays such an important role we integrate it into service costing. In our work we present and evaluate a risk-based costing approach for PSS. The benefit of our cost model is to include risk factors associated with the trustworthiness of customer input. Our contribution to service science is the computation of service costs by the extension of standard Time-Driven Activity-Based Costing (TDABC) including the expected loss due to customer input. In our work we demonstrate the successful inclusion of trust-based risk factors into service costing to improve service cost management in the context of PSS.

关键词： PSS cost model customer integration trust risk-based costing

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Model-Based Engineering and Virtual Commissioning of Cyber-Physical Manufacturing systems - Transportation System Case Study

Model-Based Engineering and Virtual Commissioning of Cyber-P...

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IEEE International Conference on Emerging Technologies and Factory Automation

作者： Petr Novák Petr Kadera Manuel Wimmer Czech Technical University in Prague Prague Czech Republic TU Wien Institute of Software Technology and Interactive Systems Vienna Austria Czech Institute of Informatics Robotics and Cybernetics Czech Technical University in Prague Prague Czech Republic

Emerging manufacturing systems are becoming complex while their engineering and ramp-up phases have to be as short as possible in order to decrease the reaction time to new market demands as well as to minimize production line down-times causing financial losses. Since engineering knowledge is not shared satisfactorily, virtual commissioning of industrial plants is very complicated. This paper contributes to a better synthesis and analysis of manufacturing lines by integrating the simulation of manufacturing systems with the tool Siemens Plant Simulation and their engineering with Schmid P'X5 Configurator for Montratec. The proposed approach is based on the model-based techniques and it is demonstrated on a laboratory-scaled use-case showing its efficiency.

关键词： Virtual Commissioning Manufacturing systems Case Study

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How to sort trustworthy health online information? Improvements of the automated detection of HONcode criteria

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Procedia Computer Science 2017年 121卷 940-949页

作者： Célia Boyer Cédric Frossard Arnaud Gaudinat Allan Hanbury Gilles Falquetd Health On The Net Foundation Geneva Switzerland BiTeM group HES-SO/HEG Geneva Information Science Department Carouge Switzerland Institute of Software Technology & Interactive Systems TU Wien Vienna Austria Faculty of economics and social sciences University of Geneva Geneva Switzerland

When searching on the Web, laypersons and professionals have difficulty in determining the quality or trustworthiness of health websites. No simple approach can differentiate among trustworthy and unreliable health websites in the results provided by major search engines such as Google, Yahoo or Bing. The European project Kconnect proposes to classify the reliability and readability levels of health-related Web sites and pages, tools according to the detection of HONcode criteria, the Health On the Net Foundation (HON) Code of Conduct using automated tools that examine how technical the health information contained in each document is. This article focuses on enhancement of automated detection of HONcode criteria in real-time settings. Applications of the approach include integration into the HONcode certification process, and embedding it as generic filtering tool into user-centered health domain search engines as well as into major general search engines such as a Web browser extension.

关键词： Quality criteria Trust Learning approach HONcode search engine

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Supervised entity tagger for indonesian labor strike tweets using oversampling technique and low resource features

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Telkomnika (Telecommunication Computing Electronics and Control) 2016年第4期14卷 1462-1471页

作者： Purwarianti, Ayu Madlberger, Lisa Ibrahim, Muhammad School of Electrical Engineering and Informatics Bandung Institute of Technology Jl. Ganesa No. 10 Bandung Indonesia Institute of Software Technology and Interactive Systems Vienna University of Technology Favoritenstrasse 9-11/188 ViennaA-1040 Austria Faculty of Computer Science University of Indonesia Kampus UI Depok16424 Indonesia

We propose an entity tagger for Indonesian tweets sent during labor strike events using supervised learning methods. The aim of the tagger is to extract the date, location and the person/organization involved in the strike. We use SMOTE (Synthetic Minority Oversampling Technique) as an oversampling technique and conducted several experiments using Twitter data to evaluate different settings with varying machine learning algorithms and training data sizes. In order to test the low resource features, we also conducted experiments for the system without employing the word list feature and the word normalization. Our results indicated that different treatment of different types of machine learning algorithms with low resource features can lead to a good accuracy score. Here, we tried Naïve Bayes, C4.5, Random Forest and SMO (Sequential Minimal Optimization) algorithms using Weka as the machine learning tools. For the Naïve Bayes, due to the data distribution based of the class probability, the best accuracy was achieved by removing data duplication. For C4.5 and Random Forest, SMOTE gave higher accuracy result compared to the original data and the data with data duplication removal. For SMO, there is no significant difference among various sizes of training data. © 2016 Universitas Ahmad Dahlan.

关键词： Supervised learning

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Truck circuits diagnosis for railway lines equipped with an automatic block signalling system

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IOP Conference Series: Materials Science and Engineering 2018年第1期294卷

作者： E Spunei I Piroi C Muscai E Răduca F Piroi Eftimie Murgu University of Resita Electrical Engineering and Informatics Department Traian Vuia str. no. 1-4 320085 Resita Romania Vienna University of Technology Institute of Software Technology and Interactive Systems Viena Austria

This work presents a diagnosis method for detecting track circuits failures on a railway traffic line equipped with an Automatic Block Signalling installation. The diagnosis method uses the installation's electrical schemas, based on which a series of diagnosis charts have been created. Further, the diagnosis charts were used to develop a software package, CDCBla, which substantially contributes to reducing the diagnosis time and human error during failure remedies. The proposed method can also be used as a training package for the maintenance staff. Since the diagnosis method here does not need signal or measurement inputs, using it does not necessitate additional IT knowledge and can be deployed on a mobile computing device (tablet, smart phone).

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Diagnosis diagrams for passing signals on an automatic block signaling railway section

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IOP Conference Series: Materials Science and Engineering 2018年第1期294卷

作者： E Spunei I Piroi C P Chioncel F Piroi Eftimie Murgu University of Resita Electrical Engineering and Informatics Department Traian Vuia str. no. 1-4 320085 Resita 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.

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