Rosenheim University of Applied Sciences
Rosenheim, Germany
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Agency: European Commission | Branch: FP7 | Program: CP-TP | Phase: FoF.NMP.2013-6 | Award Amount: 6.32M | Year: 2013

The CTC project aims to support European Industry to adapt to global competitive pressures by developing methods and innovative enabling technologies towards local flexible manufacturing of green personalized products close to the customer in terms of features offered, place of fabrication, time to deliver, and cost. This vision is implemented and demonstrated within an European industrial sector of excellence: the furniture sector (151.000 companies, annual turnover of more than 130 Billion Euro, total workforce of 1,4 million). The ultimate implementation envisions a green factory behind a glass pane directly in the Shopping Mall, where the customer witnesses the manufacturing of its personalized furniture. CTC vision of local flexible manufacturing of green personalized furniture is to be implemented by the development of 5 pillars: 1) Development of a Formalized Design Approach and related software technologies for design to manufacturing in one step; 2) Development of a standardized mini-factory Production System Model; 3) Implementation of the local Context Aware Factory (which is the instantiation of the Production System Model afore mentioned in the second Pillar); 4) Development of the CTC woodwork machining system, capable to empower the Close to the Customer concept; 5) Development of the CTC Green Label. Anticipated results from the CTC project are expected to have a huge impact on the European economy, also considering the high number of actors involved and the overall dimensions of the furniture sector.

Von Kurnatowski M.,Otto Von Guericke University of Magdeburg | Grillenbeck T.,Rosenheim University of Applied Sciences | Kassner K.,Otto Von Guericke University of Magdeburg
Physical Review E - Statistical, Nonlinear, and Soft Matter Physics | Year: 2013

The Kruskal-Segur approach to selection theory in diffusion-limited or Laplacian growth is extended via combination with the Zauderer decomposition scheme. This way nonlinear bulk equations become tractable. To demonstrate the method, we apply it to two-dimensional crystal growth in a potential flow. We omit the simplifying approximations used in a preliminary calculation for the same system, thus exhibiting the capability of the method to extend mathematical rigor to more complex problems than hitherto accessible. © 2013 American Physical Society.

Petkovic D.,Rosenheim University of Applied Sciences
Advances in Intelligent Systems and Computing | Year: 2016

Several database systems have implemented temporal data support, partly according to the model specified in the last SQL standard and partly according to other, older temporal models. In this article we use the most important temporal concepts to investigate their implementations in enterprise database systems. Also, we discuss strengths and weaknesses of these implementations and give suggestions for future extensions. © Springer International Publishing Switzerland 2016.

Tempelmeier T.,Rosenheim University of Applied Sciences
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2012

In many universities programming is taught using the current mainstream languages C, C++, C#, or Java. For Universities of Applied Sciences (Fachhochschulen) in Germany this is almost mandatory, as the contents of their curricula are always scrutinized with respect to (immediate) practical applicability. This contribution presents the concepts behind an elective course on 'Concepts of programming Languages' in the master's degree program of the computer science department of the Fachhochschule Rosenheim. The course has been taught over the years, using the programming language Ada as a central subject throughout the course. In spite of the contrast to mainstream languages the use of Ada in this course has received positive feedback from the students and the colleagues and may well be designated as successful. © 2012 Springer-Verlag.

Mayr A.R.,Rosenheim University of Applied Sciences | Gibbs B.M.,University of Liverpool
Acta Acustica united with Acustica | Year: 2012

The work reported in the paper addresses structure-borne sound transmission between multiple contact sources and non homogeneous plate receiver structures. This study concentrates on a practical method of predicting the installed structure-borne sound power from mechanical installations in lightweight buildings. The structure-borne sound power is a function of source activity, source mobility and receiver mobility, and all three quantities must be known to some degree. It is rarely practical to consider all transmission paths individually and in detail, and therefore, reduced data sets and less computationally demanding procedures are proposed. The paper examines how source data can be used to assemble single equivalent values, using spatial averages and magnitudes. Single equivalent values of receiver mobility also are proposed for lightweight, point-connected ribbed plate constructions. In case studies, the single equivalent values are used for predicting the structure-borne power in the installed condition. © S. Hirzel Verlag © EAA.

Ringsquandl M.,Rosenheim University of Applied Sciences | Petkovic D.,Rosenheim University of Applied Sciences
AAAI Spring Symposium - Technical Report | Year: 2013

Due to the vast amount of user-generated content in the emerging Web 2.0, there is a growing need for computational processing of sentiment analysis in documents. Most of the current research in this field is devoted to product reviews from websites. Microblogs and social networks pose even a greater challenge to sentiment classification. However, especially marketing and political campaigns leverage from opinions expressed on Twitter or other social communication platforms. The objects of interest in this paper are the presidential candidates of the Republican Party in the USA and their campaign topics. In this paper we introduce the combination of the noun phrases' frequency and their PMI measure as constraint on aspect extraction. This compensates for sparse phrases receiving a higher score than those composed of high-frequency words. Evaluation shows that the meronymy relationship between politicians and their topics holds and improves accuracy of aspect extraction. Copyright © 2013, AAAI Press.

Petkovic D.,Rosenheim University of Applied Sciences
ACM International Conference Proceeding Series | Year: 2012

One of main research areas concerning XML documents is how to store them. Researchers usually suggest the use of relational databases for this task. However, object-relational databases with their extended data model are better for this purpose, because the "flat" relational model is not ideal for mapping of hierarchic structure of XML. Several papers have been published, which describe how structures and constraints of XML documents can be mapped to object-relational databases (ORDBs). However, their results cannot be applied in practice, because the available technology is usually not aware of object-oriented concepts, which are used. In this paper we propose mapping rules that are practicable for existing ORDBMSs in general. Specifically, we analyze object-oriented concepts implemented in an existing ORDBMS (DB2) and show how XML Schema parts can be mapped to them. We also perform a case study to illustrate mappings according to our rules. Although the paper discusses the use of XML Schema instances as metadata, existing DTD instances can also be used, because they can be easily transformed to corresponding XML Schema documents. To our knowledge this is the first such proposition for the database system mentioned above. Copyright 2012 ACM.

Petkovic D.,Rosenheim University of Applied Sciences
2nd International Conference on Advances in Databases, Knowledge, and Data Applications, DBKDA 2010 | Year: 2010

The article explores the optimization of queries using genetic algorithms and compares it with the conventional query optimization component. Genetic algorithms (GAs), as a data mining technique, have been shown to be a promising technique in solving the ordering of join operations in large join queries. In practice, a genetic algorithm has been implemented in the PostgreSQL database system. Using this implementation, we compare the conventional component for an exhaustive search with the corresponding module based on a genetic algorithm. Our results show that the use of a genetic algorithm is a viable solution for optimization of large join queries, i.e., that the use of such a module outperforms the conventional query optimization component for queries with more than 12 join operations. © 2010 IEEE.

Petkovic D.,Rosenheim University of Applied Sciences
Communications in Computer and Information Science | Year: 2015

Time is generally a challenging task. All issues in relation to time can be better supported using a temporal data model than implementing them in user applications. More than two-dozen temporal data models have been introduced in time period between 1982 and 1998. After several years of stagnancy, the last couple of years brought the new revival of the topic and the emergence of new data models. Two temporal data models have been specified recently. The one is the SQL:2011 standard, published in 2011. The second one is from Teradata. In this article we present the temporal data model of the ANSI SQL standard on one side and the data model of an existing relational DBMS on the other. After that, we compare their support of several temporal concepts. Finally, we discuss strengths and weaknesses of both models and give suggestions for future extensions. © Springer International Publishing Switzerland 2015.

Hammerschmidt T.,Rosenheim University of Applied Sciences
Gesundheitsokonomie und Qualitatsmanagement | Year: 2016

Objectives: In the past, German drug prices were not regulated at launch (i.?e. free pricing at full reimbursement) and among the highest in Europe. In 2011, the Pharmaceutical Market Restructuring Act (AMNOG) introduced a benefit assessment followed by negotiations of a reimbursement price immediately after launch of new, patent-protected drugs. Today, free pricing is only possible during the first 12 month after launch. Among others, relevant criteria in the price negotiations are the added benefit and the corresponding drug prices from specified European countries. The objective of this study is to analyze the results of the price negotiations with a specific focus on how manufacturers in Germany set their prices at launch and how reimbursement prices fit in the EU price range. Methods: Analysis of launch and reimbursement prices as well as published prices from relevant EU countries for all drugs with a published reimbursement price between 2011 and 2015. Results: 85 drugs are included in the analysis. Price negotiations reduce the launch price by 26.2?% on average with wide variation. Reduction is significantly higher for those drugs which were taken from the market by the manufacturer (opt out) as well as for neurology drugs. Reductions are significantly associated with the extent of added benefit of the drugs. German launch prices present the highest price in the EU countries for 56.5?% of the drugs. On average they are set 4.2?% above the highest price in the other EU countries. Negotiated reimbursement prices are lower than the minimum EU price for 30.6?% of drugs. On average, reimbursement prices are 6.4?% above the minimum and 11.9?% below the average EU-price. Conclusions: Under AMNOG, Germany is still a high-priced market in the first year after launch. Negotiated reimbursement prices reflect the benefit of the drugs. After the negotiations, Germany can be considered to be a relatively low-priced market compared with other EU countries. AMNOG achieved the objective to establish cost-efficient drug prices. Copyright ©, Georg Thieme Verlag KG. All rights reserved.

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