TY - THES AB - Das Thema der vorliegenden Dissertation ist die "Prozessqualifizierung zur verlässlichen Herstellung von Produkten im Polymer Lasersinterverfahren". Über eine definierte Qualitätsprozesskette werden sämtliche, auf die Produktqualität relevanten Einflussparameter, bestimmt und berücksichtigt. Unterschiedliche Methoden zur Materialcharakterisierung des pulverförmigen Ausgangsmaterials werden analysiert und bewertet. Rheologische sowie chemische Eigenschaften, aber auch die Partikelgrößenverteilung oder die Schüttdichte werden hinsichtlich Relevanz, Einfluss und Anwenderfreundlichkeit untersucht. Das Ziel ist eine sinnvolle Bestimmung des Ausgangszustandes des Pulvers anhand definierter, relevanter Materialeigenschaften, um reproduzierbare technische Bauteileigenschaften zu gewährleisten. Dazu werden mechanische, dynamisch-mechanische, physikalische, elektrische, thermische sowie chemische Untersuchungen durchgeführt und hinsichtlich wichtiger Einflussparameter evaluiert. Die Bestimmung erfolgt über entwickelte Referenzjobs, in denen die hauptsächlichen Einflussfaktoren auf das Polymer-Lasersinterverfahren entlang der Qualitätsprozesskette berücksichtigt werden. Die charakterisierten Daten dienen zur Auslegung eines fiktiven Produktes aus der Luftfahrtindustrie. Mit Hilfe dieser Methoden lassen sich Materialkennwerte für diverse Simulationstools eindeutig bestimmen um eine realitätsnahe Berechnung zu gewährleisten. AU - Rüsenberg, Stefan ID - 24751 KW - Additive Fertigung KW - Polymere KW - Lasersintern KW - Methode KW - Qualität KW - Konstruktion KW - Eigenschaften KW - Material KW - Charakterisierung KW - Qualifizierung TI - Prozessqualifizierung zur verlässlichen Herstellung von Produkten im Polymer Lasersinterverfahren VL - Band, 2 ER - TY - GEN AU - John, Thomas ID - 248 T2 - AIS SIGPRAG Pre-ICIS Workshop: Practice-based Design and Innovation of Digital Artifacts TI - Supporting Business Model Idea Generation Through Machine-generated Ideas - Towards a Design Theory ER - TY - GEN AB - We analyze the stability of networks when two intermediaries strategically form costly links to customers. We interpret these links as customer relationships that enable trade to sell a product. Equilibrium prices and equilibrium quantities on the output as well as on the input market are determined endogenously for a given network of customer relationships. We investigate in how far the substitutability of the intermediaries' products and the costs of link formation influence the intermediaries' equilibrium profits and thus have an impact on the incentives to strategically form relationships to customers. For networks with three customers we characterize locally stable networks, in particular existence is guaranteed for any degree of substitutability. Moreover for the special cases of perfect complements, independent products and perfect substitutes, local stability coincides with the stronger concept of Nash stability. Additionally, for networks with n customers we analyze stability regions for selected networks and determine their limits when n goes to infinity. It turns out that the shape of the stability regions for those networks does not significantly change compared to a setting with a small number of customers. AU - Brangewitz, Sonja AU - Haake, Claus-Jochen AU - Möhlmeier, Philipp ID - 249 TI - Strategic Formation of Customer Relationship Networks VL - 91 ER - TY - CONF AB - Before execution, users should formally validate the correctness of software received from untrusted providers. To accelerate this validation, in the proof carrying code (PCC) paradigm the provider delivers the software together with a certificate, a formal proof of the software’s correctness. Thus, the user only checks if the attached certificate shows correctness of the delivered software.Recently, we introduced configurable program certification, a generic, PCC based framework supporting various software analyses and safety properties. Evaluation of our framework revealed that validation suffers from certificate reading. In this paper, we present two orthogonal approaches which improve certificate validation, both reducing the impact of certificate reading. The first approach reduces the certificate size, storing information only if it cannot easily be recomputed. The second approach partitions the certificate into independently checkable parts. The trick is to read parts of the certificate while already checking read parts. Our experiments show that validation highly benefits from our improvements. AU - Jakobs, Marie-Christine ID - 250 T2 - Proceedings of the 13th International Conference on Software Engineering and Formal Methods (SEFM) TI - Speed Up Configurable Certificate Validation by Certificate Reduction and Partitioning ER - TY - CONF AB - In this paper, we introduce an approach for combining embedded systems with Service-oriented Computing techniques based on a concrete application scenario from the robotics domain. Our proposed Service-oriented Architecture allows for incorporating computational expensive functionality as services into a distributed computing environment. Furthermore, our framework facilitates a seamless integration of embedded systems such as robots as service providers into the computing environment. The entire communication is based on so-called recipes, which can be interpreted as autonomous messages that contain all necessary information for executing compositions of services. AU - Jungmann, Alexander AU - Jatzkowski, Jan AU - Kleinjohann, Bernd ID - 25073 T2 - Proceedings of the 5th IFIP International Embedded Systems Symposium (IESS) TI - Combining Service-oriented Computing with Embedded Systems - A Robotics Case Study ER - TY - CONF AU - Jatzkowski, Jan AU - Kreutz, Marcio Eduardo AU - Rettberg, Achim ID - 25074 T2 - Proceedings of the 5th IFIP International Embedded Systems Symposium (IESS) TI - Hierarchical Multicore-Scheduling for Virtualization of Dependent Real-Time Systems ER - TY - CONF AU - Stahl, Katharina AU - Stöcklein, Jörg AU - Li, Silja ED - Shumaker, Randall ED - Lackey, Stephanie ID - 25075 T2 - Virtual, Augmented and Mixed Reality VAMR 2015 Held as Part of HCI International 2015 TI - Evaluation of Autonomous Approaches using Virtual Environments VL - 9179 ER - TY - CONF AB - Automated service composition aims at automatically generating software solutions based on services to provide more complex functionality. In this paper, we give an initial overview about why adaptivity becomes increasingly important when aiming for automated composition of service functionality in dynamic and freely accessible environments such as service markets. We systematically derive dependencies among crucial processes such as service composition and service execution in a holistic view. Furthermore, we briefly discuss the influences and effects of changes in the environment according to the derived dependencies, and discuss possible future research directions. AU - Jungmann, Alexander ID - 25076 T2 - Proceedings of the IEEE 11th World Congress on Services (SERVICES) TI - On Adaptivity for Automated Composition of Service Functionality ER - TY - CONF AB - ervices are self-contained and platform independent software components that aim at maximizing software reuse. The automated composition of services to a target software artifact has been tackled with many AI techniques, but existing approaches make unreasonably strong assumptions such as a predefined data flow, are limited to tiny problem sizes, ignore non-functional properties, or assume offline service repositories. This paper presents an algorithm that automatically composes services without making such assumptions. We employ a backward search algorithm that starts from an empty composition and prepends service calls to already discovered candidates until a solution is found. Available services are determined during the search process. We implemented our algorithm, performed an experimental evaluation, and compared it to other approaches. AU - Mohr, Felix AU - Jungmann, Alexander AU - Kleine Büning, Hans ID - 25080 T2 - Proceedings of the 12th IEEE International Conference on Services Computing (SCC) TI - Automated Online Service Composition ER - TY - CONF AU - Jatzkowski, Jan AU - Kreutz, Marcio Eduardo AU - Rettberg, Achim ID - 25082 T2 - Proceedings of Electronic System Level Synthesis Conference (ESLsyn) TI - Towards Hierarchical Scheduling of Dependent Systems with Hypervisor-based Virtualization ER - TY - CONF AU - Jatzkowski, Jan AU - Kleinjohann, Bernd ID - 25083 T2 - Mechatronics TI - Self-Reconfiguration of Real-Time Communication within Cyber-Physical Systems ER - TY - GEN AU - Pfannschmidt, Karlson ID - 251 TI - Solving the aggregated bandits problem ER - TY - JOUR AB - On-the-fly composition of service-based software solutions is still a challenging task. Even more challenges emerge when facing automatic service composition in markets of composed services for end users. In this paper, we focus on the functional discrepancy between “what a user wants” specified in terms of a request and “what a user gets” when executing a composed service. To meet the challenge of functional discrepancy, we propose the combination of existing symbolic composition approaches with machine learning techniques. We developed a learning recommendation system that expands the capabilities of existing composition algorithms to facilitate adaptivity and consequently reduces functional discrepancy. As a representative of symbolic techniques, an Artificial Intelligence planning based approach produces solutions that are correct with respect to formal specifications. Our learning recommendation system supports the symbolic approach in decision-making. Reinforcement Learning techniques enable the recommendation system to adjust its recommendation strategy over time based on user ratings. We implemented the proposed functionality in terms of a prototypical composition framework. Preliminary results from experiments conducted in the image processing domain illustrate the benefit of combining both complementary techniques. AU - Jungmann, Alexander AU - Mohr, Felix ID - 25107 JF - Journal of Internet Services and Applications 6(1) TI - An approach towards adaptive service composition in markets of composed services ER - TY - JOUR AB - Autonomous adaptation in self-adapting embedded real-time systems introduces novel risks as it may lead to unforeseen system behavior. An anomaly detection framework integrated in a real-time operating system can ease the identification of such suspicious novel behavior and, thereby, offers the potential to enhance the reliability of the considered self-x system. However, anomaly detection is based on knowledge about normal behavior. When dealing with self-reconfiguring applications, normal behavior changes. Hence, knowledge base requires adaptation or even re-construction at runtime. The stringent restrictions of real-time systems considering runtime and memory consumption make this task to a really challenging problem. We present our idea for online construction of application behavior knowledge that does not rely on training phase. The applications' behavior is defined by the application's system call invocations. For the knowledge base, we exploit suffix trees as they offer potentials to represent application behavior patterns and associated information in a compact manner. The online algorithm provided by suffix trees is a basis to construct the knowledge base with low computational effort. Anomaly detection and classification is integrated into the online construction method. New behavioral patterns do not unconditionally update the behavior knowledge base. They are evaluated in a context-related manner inspired by Danger Theory, a special discipline of artificial immune systems. Copyright © 2015 John Wiley & Sons, Ltd. AU - Rammig, Franz-Josef AU - Stahl, Katharina ID - 25108 JF - Concurrency and Computation: Practice and Experience TI - Online behavior classification for anomaly detection in self-x real-time systems ER - TY - JOUR AU - Sudhakar, Krishna AU - Zhao, Yuhong AU - Rammig, Franz-Josef ID - 25109 JF - Concurrency and Computation: Practice and Experience TI - Efficient Integration of Online Model Checking into a Small-Footprint Real-Time Operating System ER - TY - JOUR AU - Joy, M. tech. Mabel Mary AU - Rammig, Franz-Josef ID - 25110 JF - Int. J. of Embedded Systems TI - A hybrid methodology to detect memory leaks in soft real time embedded systems software ER - TY - JOUR AU - Khaluf, Yara AU - Birattari, Mauro AU - Rammig, Franz-Josef ID - 25111 JF - Springer Jounal Soft Computing TI - Analysis of long-term swarm performance based on short-term experiments ER - TY - CONF AB - Video streaming is in high demand by mobile users. In cellular networks, however, the unreliable wireless channel leads to two major problems. Poor channel states degrade video quality and interrupt the playback when a user cannot sufficiently fill its local playout buffer: buffer underruns occur. In contrast, good channel conditions cause common greedy buffering schemes to buffer too much data. Such over-buffering wastes expensive wireless channel capacity. Assuming that we can anticipate future data rates, we plan the quality and download time of video segments ahead. This anticipatory download scheduling avoids buffer underruns by downloading a large number of segments before a drop in available data rate occurs, without wasting wireless capacity by excessive buffering.We developed a practical anticipatory scheduling algorithm for segmented video streaming protocols (e.g., HLS or MPEG DASH). Simulation results and testbed measurements show that our solution essentially eliminates playback interruptions without significantly decreasing video quality. AU - Dräxler, Martin AU - Blobel, Johannes AU - Dreimann, Philipp AU - Valentin, Stefan AU - Karl, Holger ID - 252 T2 - Proceedings of the 2nd International Conference on Networked Systems (NetSys) TI - SmarterPhones: Anticipatory Download Scheduling for Wireless Video Streaming ER - TY - CONF AB - Group signatures, introduced by Chaum and van Heyst [15], are an important primitive in cryptography. In group signature schemes every group member can anonymously sign messages on behalf of the group. In case of disputes a dedicated opening manager is able to trace signatures - he can extract the identity of the producer of a given signature. A formal model for static group signatures schemes and their security is defined by Bellare, Micciancio, and Warinschi [4], the case of dynamic groups is considered by Bellare, Shi, and Zhang [5]. Both models define group signature schemes with a single opening manager. The main difference between these models is that the number of group members in static schemes is fixed, while in dynamic schemes group members can join the group over time. AU - Blömer, Johannes AU - Juhnke, Jakob AU - Löken, Nils ID - 253 T2 - Proceedings of the Sixth International Conference on Mathematical Aspects of Computer and Information Sciences (MACIS) TI - Short Group Signatures with Distributed Traceability ER - TY - JOUR AU - Strube, Oliver I. AU - Rüdiger, Arne A. AU - Bremser, Wolfgang ID - 25312 JF - International Journal of Adhesion and Adhesives SN - 0143-7496 TI - Buildup of biobased adhesive layers by enzymatically controlled deposition on the example of casein ER - TY - JOUR AU - Strube, Oliver I. AU - Büngeler, Anne AU - Bremser, Wolfgang ID - 25313 JF - Biomacromolecules SN - 1525-7797 TI - Site-Specific In Situ Synthesis of Eumelanin Nanoparticles by an Enzymatic Autodeposition-Like Process ER - TY - JOUR AU - Briesenick, Daniel AU - Bremser, Wolfgang ID - 25314 JF - Progress in Organic Coatings SN - 0300-9440 TI - Synthesis of polyamide-imide-montmorillonite-nanocomposites via new approach of in situ polymerization and solvent casting ER - TY - CONF AU - Kopecki, Lukas ID - 25322 TI - A Metric for Candidate Selection for a Robust Opportunistic Container Routing in high Complex Distribution Centers ER - TY - CONF AU - Weber, Jens ED - Yilmaz, L ED - Chan, K. V ED - Moon, I ED - Roeder, T. M. K, T. M. K ED - Macal, C ED - Rossetti, M. D ID - 25323 T2 - Proceedings of the 2015 Winter Simulation Conference TI - A Technical Approach of a Simulation-Based Optimization Platform for Setup-Preparation via Virtual Tooling by Testing the Optimization of Zero Point Positions in CNC-Applications ER - TY - CONF AB - Customized planning, engineering and construction of one-of-a-kind products (like wind energy, biogas or power plants) are complex and contain a lot of risks and temporal uncertainties, e.g. of logistics and project schedules. Therefore the management of this kind of projects has to be supported by adequate methods for the estimation of project risks and uncertainties. Based on the results of the joint research project simject of the Universities of Paderborn and Kassel, which aims at the development of a demonstrator for simulation-based and logistic-integrated project planning and scheduling, this paper discusses the usage of different approaches for supporting project management of plant engineering projects. After a short introduction and description of the approaches to be compared a wind energy plant as evaluation model as well as the application of the different methods are presented. Additionally, the usage of the approaches is compared and the advantages and disadvantages are pointed out. AU - Akbulut, Akin AU - Laroque, Christoph AU - Wenzel, Sigrid AU - Jessen, Ulrich ID - 25324 T2 - Proceedings of the 2015 Winter Simulation Conference TI - A Comparison of the Usage of Different Approaches for the Management of Plant Engineering Projects ER - TY - CONF AU - Kopecki, Lukas ID - 25325 TI - A Deadlock-Free Route Reservation Method for Automatized Decentralized Controlled Transportation in High Complex Distribution Centers ER - TY - CONF AB - We empirically investigate how hosts on Airbnb, a popular peer-to-peer website for fee-based sharing of under-utilized space, adjust their prices once their offering gets a visible star rating for the first time. We use data for over 14,000 offerings from Airbnb which we collected for New York City. Our findings indicate that hosts whose offerings achieve star rating visibility significantly increase their prices by an average of 2.69 € more than hosts with comparable offerings who do not experience this rating visibility during the time of observation. Out of all offerings who achieve rating visibility, we identify the upper quartile of hosts to be the main driver of this price increase, whereas the first 75% percent show only a marginal price reaction. These results can serve as a first step towards understanding the motivation of people to provide assets to the sharing economy. AU - Gutt, Dominik AU - Herrmann, Philipp ID - 254 T2 - Proceedings of the 23rd European Conference on Information Systems (ECIS), Münster TI - Sharing Means Caring? Hosts' Price Reactions to Rating Visibility ER - TY - CONF AU - Kopecki, Lukas ID - 25405 TI - A Robust Opportunistic Routing for High complex Decentralized controlled Distribution Center ER - TY - CONF AU - Mue{\ss}, André AU - Weber, Jens AU - Reisch, Raphael-Elias AU - Jurke, Benjamin ID - 25406 T2 - Proceedings of the First Conference of Machine Learning for Cyber Physical Systems TI - Implementation and Comparison of Cluster-Based PSO Extensions in Hybrid Settings with Efficient Approximation ER - TY - CONF AU - Kopecki, Lukas ID - 25407 TI - Protocol Structure for Controlling Adaptive Conveyor System in Automatized High Complex Distribution Centers ER - TY - CHAP AU - Baeumer, Frederik Simon AU - Geierhos, Michaela AU - Schulze, Sabine ID - 25408 SN - 978-3-319-24769-4 T2 - Information and Software Technologies: 21th International Conference, ICIST 2015, Druskininkai, Lithuania, October 15-16, 2015, Proceedings TI - A System for Uncovering Latent Connectivity of Health Care Providers in Online Reviews VL - 538 ER - TY - CONF AU - Baeumer, Frederik Simon AU - Dollmann, Markus AU - Geierhos, Michaela ID - 25409 SN - 1877-0509 TI - Find a Physician by Matching Medical Needs described in your Own Words VL - 63 ER - TY - JOUR AU - Kopecki, Lukas ID - 25410 IS - 3 JF - International Journal of Materials, Mechanics and Manufacturing TI - An approach for deadlock Prevention in decentralized controlled pre-­storage zones with dynamic behavior and time windows VL - 4 ER - TY - CONF AU - Geierhos, Michaela AU - Schulze, Sabine AU - Baeumer, Frederik Simon ID - 25411 T2 - Working Papers des KVF NRW TI - Der zufriedene Patient 2.0: Analyse anonymer Arztbewertungen im Web 2.0. VL - 3 ER - TY - CONF AU - Dangelmaier, Wilhelm ED - Schenk, Michael ED - Zadek, Hartmut ED - M{\"u}ller, Gerhard ED - Richter, Klaus ED - Seidel, Holger ID - 25412 T2 - Schenk, Michael;Zadek, Hartmut;Müller, Gerhard;Richter, Klaus;Seidel, Holger (Hrsg.): 20. Magdeburger Logistiktage "Sichere und nachhaltige Logistik" TI - Online-Optimierung zur Festlegung von Bestellzeitpunkten in der Losgr{\"o}{\ss}enfertigung ER - TY - CHAP AU - Geierhos, Michaela AU - Baeumer, Frederik Simon AU - Sabine, Schulze AU - Valentina, Stu{\ss} ED - Ali, Moonis ED - Kwon, Young Sig ED - Lee, Chang-Hwan ED - Kim, Juntae ED - Kim, Yongdai ID - 25413 SN - 978-3-319-19065-5 T2 - Current Approaches in Applied Artificial Intelligence, Lecture Notes in Computer Science TI - Filtering Reviews by Random Individual Error VL - 9101 ER - TY - CONF AU - Geierhos, Michaela AU - Baeumer, Frederik Simon AU - Schulze, Sabine AU - Stu{\ss}, Valentina ID - 25414 T2 - ECIS 2015 Completed Research Papers TI - I grade what I get but write what I think." Inconsistency Analysis in Patients‘ Reviews ER - TY - CONF AU - Kopecki, Lukas ID - 25415 TI - Hardware in the Loop Framework for decentralized autonomous conveyor in automatic pre-storage zones ER - TY - GEN AU - Trykacz, Matthias ID - 255 TI - Share Economy - Identifikation von konstituierenden Merkmalen anhand einer vergleichenden Betrachtung von Geschäftsmodellen ER - TY - CONF AU - Reisch, Raphael-Elias AU - Weber, Jens AU - Laroque, Christoph AU - Schr{\"o}der, Christian ED - Tolk, A ED - Padilla, J.J ED - Jafer, S ID - 25581 IS - 47 SN - 978-1-5108-0099-1 T2 - Proceedings of the 2015 Spring Simulation Multi-Conference TI - Asynchronous Optimization Techniques for Distributed Computing Applications VL - 2 ER - TY - JOUR AU - Lauck, Sebastian AU - Boxnick, Simon AU - Kopecki, Lukas ID - 25585 IS - 1 JF - International Journal of Advances in Computer Science & Its Applications - IJCSIA TI - Analyzing Supply Chain Nodes in Heterogeneous Environments Based on Transaction Data with Respect to Independent Item Behavior VL - 5 ER - TY - GEN AU - Dangelmaier, Wilhelm, Wilhelm ID - 25586 TI - Online optimization to determine order times ER - TY - CONF AU - Geierhos, Michaela AU - Stu{\ss}, Valentina ID - 25587 TI - Identifikation kognitiver Effekte in Online-Bewertungen ER - TY - CONF AU - Geierhos, Michaela AU - Baeumer, Frederik Simon ID - 25588 TI - Second-hand experience reports: Findings {\ "about the authorship of doctor reviews in online portals ER - TY - CONF AU - Geierhos, Michaela AU - Schulze, Sabine AU - Baeumer, Frederik Simon ID - 25589 SN - 978-989-758-073-4 T2 - Proceedings of the 7th International Conference on Agents and Artificial Intelligence TI - What did you mean? Facing the Challenges of User-generated Software Requirements ER - TY - THES AU - Markwart, Paul ID - 25590 TI - Analytical derivation of the sequence rules for the equalization of high-volume job features VL - 349 ER - TY - CHAP AU - Minhee, Cho AU - Weber, Jens AU - Song, Sa-kwang AU - Jung, Hanmin AU - Lee, Mikyoung ED - Park, James J. (Jong Hyuk) ED - Stojmenovic, Ivan ED - Jeong, Hwa Young ED - Yi, Gangman ID - 25591 T2 - Computer Science and Its Applications - Ubiquitous Information Technologies TI - Prescriptive Analytics for Planning Research-Performance Strategy VL - 330 ER - TY - CONF AU - Stotz, Sophia Charlotte AU - Stu{\ss}, Valentina AU - Reinert, Matthias AU - Schrott, Maximilian ED - ter Braake, Serge ED - Fokkens, Antske ED - Sluijter, Ronald ED - Declerck, Thierry ED - Wandl-Vogt, Eveline ID - 25592 T2 - Proceedings of the First Conference on Biographical Data in a Digital World TI - Interpersonal relations in biographical dictionaries. A case study VL - 1399 ER - TY - JOUR AU - Geierhos, Michaela AU - Schulze, Sabine ID - 25593 JF - ForschungsForum Paderborn TI - The satisfied patient 2.0: Analysis of anonymous doctor reviews to generate a patient mood VL - 18 ER - TY - JOUR AU - Geierhos, Michaela AU - Schulze, Sabine ID - 25594 JF - ForschungsForum Paderborn TI - The Satisfied Patient 2.0: Analysis of anonymous doctor ratings to gain insight into patient sentimen VL - 18 ER - TY - GEN AU - Zindler, Finn ID - 256 TI - Selektive Vertriebssysteme am Fallbeispiel der Adidas AG - eine wettbewerbspolitische Beurteilung ER - TY - CHAP AU - Büker, Petra ED - Büker, Petra ID - 19536 T2 - Kinderstärken – Kinder stärken. Erziehung und Bildung ressourcenorientiert gestalten. (KinderStärken, Bd. 1) TI - Kinderstärken – Kinder stärken: Pädagogische, soziologische und psychologische Zugänge zu einer „starken Idee" ER - TY - CHAP AU - Kordulla, Agnes AU - Büker, Petra ED - Büker, Petra ID - 19537 T2 - Kinderstärken – Kinder stärken. Erziehung und Bildung ressourcenorientiert gestalten. (KinderStärken, Bd. 1) TI - KinderStärken beobachten und dokumentieren ER - TY - CHAP AU - Hüpping, Birgit AU - Büker, Petra ED - Büker, Petra ID - 19538 T2 - Kinderstärken – Kinder stärken. Erziehung und Bildung ressourcenorientiert gestalten. (KinderStärken, Bd. 1) TI - KinderStärken für das Aufwachsen in multikulturellen Lebenswelten ER - TY - JOUR AU - Bührmann, Thorsten AU - Büker, Petra ID - 19563 JF - Diskurs Kindheits- und Jugendforschung TI - Organisationsentwicklung und multiprofessionelle Teamarbeit im Kinderbildungshaus - eine systemische Perspektive VL - 10 Jg., H. 2 ER - TY - CHAP AU - Kordulla, Agnes AU - Büker, Petra ED - Müller, Charlotte ED - Amberg, Lucia ED - Dütsch, Thomas ED - Hildebrandt, Elke ED - Vogt, Franziska ED - Wannack, Evelyne ID - 19565 T2 - Perspektiven und Potentiale in der Schuleingangsstufe TI - Perspektiven von Kindern auf die Gestaltung didaktischer Lernarrangements im Übergang Kindergarten-Grundschule ER - TY - CONF AB - November 2015 AU - Büker, Petra AU - Weiß, Christine ID - 19804 TI - Inklusion vom Kind aus denken - das Vielfaltstableau für die Aus- und Weiterbildung in multi-professionellen Teams. Workshop im Rahmen der 3. Arbeitstagung der Multiplikatoren für Integration im Projekt ZINT an der Hochschule Görlitz/Zittau ER - TY - CONF AB - September 2015 AU - Büker, Petra AU - Höke, Julia ID - 19805 TI - Das Kind als kompetenter Akteur - Interdisziplinäre Anfragen an ein prominentes Paradigma der Früh- und Grundschulpädagogik. Vortrag an der Jahrestagung der Sektion Schulpädagogik der Deutschen Gesellschaft für Erziehungswissenschaft. Georg-August Universität Göttingen ER - TY - CONF AB - September 2015 AU - Büker, Petra AU - Bethke, Cathleen ID - 19810 TI - "This is important for us": Quality criterion enunciated by children as experts for their transition process from kindergarten to primary school. Poster presentation at the 25th EECERA conference - European Early Childhood Education Research Association. Barcelona, Spain ER - TY - CONF AB - September 2015 AU - Büker, Petra AU - Weiß, Christine AU - Schulze Mengering, Theresia ID - 19811 TI - Inklusion vom Kind aus denken - eine Lehrerfortbildung mittels des Vielfaltstableaus gestalten: Vortrag im Rahmen des Praxisforums Inklusion des Bildungs- und Integrationszentrum des Kreises Paderborn in Kooperation mit der Universität Paderborn. Universität Paderborn ER - TY - CONF AU - Wahby, Mostafa AU - Hamann, Heiko ID - 19959 T2 - Applications of Evolutionary Computation (EvoApplications 2015) TI - On the Tradeoff between Hardware Protection and Optimization Success: A Case Study in Onboard Evolutionary Robotics for Autonomous Parallel Parking ER - TY - CONF AB - Besides the life-as-it-could-be driver of artificial life research there is also the concept of extending natural life by creating hybrids or mixed societies that are built from natural and artificial components. In this paper we motivate and present the research program of the project flora robotica. Our objective is to develop and to investigate closely linked symbiotic relationships between robots and natural plants and to explore the potentials of a plant-robot society able to produce architectural artifacts and living spaces. These robot-plant bio-hybrids create synergies that allow for new functions of plants and robots. They also create novel design opportunities for an architecture that fuses the design and construction phase. The bio-hybrid is an example of mixed societies between 'hard' artificial and 'wet' natural life, which enables an interaction between natural and artificial ecologies. They form an embodied, self-organizing, and distributed cognitive system which is supposed to grow and develop over long periods of time resulting in the creation of meaningful architectural structures. A key idea is to assign equal roles to robots and plants in order to create a highly integrated, symbiotic system. Besides the gain of knowledge, this project has the objective to create a bio-hybrid system with a defined function and application -- growing architectural artifacts. AU - Hamann, Heiko AU - Wahby, Mostafa AU - Schmickl, Thomas AU - Zahadat, Payam AU - Hofstadler, Daniel AU - Stoy, Kasper AU - Risi, Sebastian AU - Faina, Andres AU - Veenstra, Frank AU - Kernbach, Serge AU - Kuksin, Igor AU - Kernbach, Olga AU - Ayres, Phil AU - Wojtaszek, Przemyslaw ID - 19960 SN - 9781479975600 T2 - Proceedings of the 2015 IEEE Symposium on Artificial Life (IEEE ALIFE'15) TI - Flora Robotica - Mixed Societies of Symbiotic Robot-Plant Bio-Hybrids ER - TY - JOUR AB - Recent approaches in evolutionary robotics (ER) propose to generate behavioral diversity in order to evolve desired behaviors more easily. These approaches require the definition of a behavioral distance, which often includes task-specific features and hence a priori knowledge. Alternative methods, which do not explicitly force selective pressure towards diversity (SPTD) but still generate it, are known from the field of artificial life, such as in artificial ecologies (AEs). In this study, we investigate how SPTD is generated without task-specific behavioral features or other forms of a priori knowledge and detect how methods of generating SPTD can be transferred from the domain of AE to ER. A promising finding is that in both types of systems, in systems from ER that generate behavioral diversity and also in the investigated speciation model, selective pressure is generated towards unpopulated regions of search space. In a simple case study we investigate the practical implications of these findings and point to options for transferring the idea of self-organizing SPTD in AEs to the domain of ER. AU - Hamann, Heiko ID - 19962 JF - Artificial Life SN - 1064-5462 TI - Lessons from Speciation Dynamics: How to Generate Selective Pressure Towards Diversity ER - TY - CONF AB - Aggregation is a crucial task in swarm robotics to ensure cooperation. We investigate the task of aggregation on an area specified indirectly by certain environmental features, here it is a light distribution. We extend the original BEECLUST algorithm, that implements an aggregation behavior, to an adaptive variant that automatically adapts to any light conditions. We compare these two control algorithms in a number of swarm robot experiments with different light conditions. The improved, adaptive variant is found to be significantly better in the tested setup. AU - Wahby, Mostafa AU - Weinhold, Alexander AU - Hamann, Heiko ID - 19966 SN - 9781631901003 T2 - Proceedings of the 9th EAI International Conference on Bio-inspired Information and Communications Technologies (formerly BIONETICS) TI - Revisiting BEECLUST: Aggregation of Swarm Robots with Adaptiveness to Different Light Settings ER - TY - CONF AU - Wahby, Mostafa AU - Divband Soorati, Mohammad AU - von Mammen, Sebastian AU - Hamann, Heiko ID - 19967 T2 - Proceedings. 25. Computational Intelligence Workshop TI - Evolution of Controllers for Robot-Plant Bio-Hybdrids: A Simple Case Study Using a Model of Plant Growth and Motion ER - TY - CONF AB - Fitness function design is known to be a critical feature of the evolutionary-robotics approach. Potentially, the complexity of evolving a successful controller for a given task can be reduced by integrating a priori knowledge into the fitness function which complicates the comparability of studies in evolutionary robotics. Still, there are only few publications that study the actual effects of different fitness functions on the robot's performance. In this paper, we follow the fitness function classification of Nelson et al. (2009) and investigate a selection of four classes of fitness functions that require different degrees of a priori knowledge. The robot controllers are evolved in simulation using NEAT and we investigate different tasks including obstacle avoidance and (periodic) goal homing. The best evolved controllers were then post-evaluated by examining their potential for adaptation, determining their convergence rates, and using cross-comparisons based on the different fitness function classes. The results confirm that the integration of more a priori knowledge can simplify a task and show that more attention should be paid to fitness function classes when comparing different studies. AU - Hamann, Heiko AU - Divband Soorati, Mohammad ID - 19980 T2 - Proceedings of the Genetic and Evolutionary Computation Conference (GECCO 2015) TI - The Effect of Fitness Function Design on Performance in Evolutionary Robotics: The Influence of a Priori Knowledge ER - TY - CONF AU - Hamann, Heiko AU - Schmickl, Thomas AU - Zahadat, Payam ID - 19988 T2 - 13th European Conference on Artificial Life (ECAL 2015) TI - Evolving Collective Behaviors With Diverse But Predictable Sensor States ER - TY - CHAP AU - Hamann, Heiko AU - Correll, Nikolaus AU - Kacprzyk, Janusz AU - Pedrycz, Witold ID - 19989 T2 - Springer Handbook of Computational Intelligence TI - Probabilistic Modeling of Swarming Systems ER - TY - CONF AU - Ding, Hongli AU - Hamann, Heiko ID - 19990 T2 - First International Symposium on Swarm Behavior and Bio-Inspired Robotics (SWARM 2015) TI - Dependability in Swarm Robotics: Error Detection and Correction ER - TY - CONF AU - Hamann, Heiko AU - Schmickl, Thomas AU - Kengyel, Daniela AU - Zahadat, Payam AU - Radspieler, Gerald AU - Wotawa, Franz ID - 19991 T2 - Principles and Practice of Multi-Agent Systems (PRIMA 2015) TI - Potential of Heterogeneity in Collective Behaviors: A Case Study on Heterogeneous Swarms ER - TY - JOUR AU - Valentini, Gabriele AU - Hamann, Heiko ID - 19992 JF - Swarm Intelligence SN - 1935-3812 TI - Time-variant feedback processes in collective decision-making systems: influence and effect of dynamic neighborhood sizes ER - TY - CONF AU - Dorigo, Marco AU - Hamann, Heiko AU - Valentini, Gabriele ID - 20005 T2 - Proceedings of the 14th Int. Conf. on Autonomous Agents and Multiagent Systems (AAMAS 2015) TI - Efficient Decision-Making in a Self-Organizing Robot Swarm: On the Speed Versus Accuracy Trade-Off ER - TY - CONF AU - Dorigo, Marco AU - Hamann, Heiko AU - Valentini, Gabriele ID - 20006 T2 - AAAI-15 Video Proceedings TI - Self-organized collective decisions in a robot swarm ER - TY - CONF AU - Kaveh, Mahdi AU - Pourmohammad, Javad AU - Hassanalian, Mostafa AU - Nili Ahmadabadi, Mahdi AU - Otroshi, Mortaza ID - 20153 TI - Optimized method in sizing of Flapping Wing ER - TY - CONF AB - The Collaborative Research Centre "On-The-Fly Computing" works on foundations and principles for the vision of the Future Internet. It proposes the paradigm of On-The-Fly Computing, which tackles emerging worldwide service markets. In these markets, service providers trade software, platform, and infrastructure as a service. Service requesters state requirements on services. To satisfy these requirements, the new role of brokers, who are (human) actors building service compositions on the fly, is introduced. Brokers have to specify service compositions formally and comprehensively using a domain-specific language (DSL), and to use service matching for the discovery of the constituent services available in the market. The broker's choice of the DSL and matching approaches influences her success of building compositions as distinctive properties of different service markets play a significant role. In this paper, we propose a new approach of engineering a situation-specific DSL by customizing a comprehensive, modular DSL and its matching for given service market properties. This enables the broker to create market-specific composition specifications and to perform market-specific service matching. As a result, the broker builds service compositions satisfying the requester's requirements more accurately. We evaluated the presented concepts using case studies in service markets for tourism and university management. AU - Arifulina, Svetlana AU - Platenius, Marie Christin AU - Mohr, Felix AU - Engels, Gregor AU - Schäfer, Wilhelm ID - 280 T2 - Proceedings of the IEEE 11th World Congress on Services (SERVICES), Visionary Track: Service Composition for the Future Internet TI - Market-Specific Service Compositions: Specification and Matching ER - TY - JOUR AB - Background Understanding changes in dietary intake during puberty could aid the mapping of dietary interventions for primary prevention. The present study describes dietary changes from childhood to adolescence, and their associations with parental education, family income, child education, body mass index (BMI), pubertal onset and screen-time sedentary behaviour. Methods Dietary data (n = 1232) were obtained from food frequency questionnaires at the 10- and 15-year follow-ups of the GINIplus birth cohort study. Intakes of 17 food groups, macronutrients and antioxidant vitamins, were described by a) paired Wilcoxon rank sum tests, comparing average intakes at each time-point, and b) Cohen’s kappa “tracking” coefficients, measuring stability of intakes (maintenance of relative tertile positions across time). Further, associations of changes (tertile position increase or decrease vs. tracking) with parental education, family income, child education, pubertal onset, BMI, and screen-time, were assessed by logistic regression and multinomial logistic regression models stratified by baseline intake tertile. Results Both sexes increased average intakes of water and decreased starchy vegetables, margarine and dairy. Females decreased meat and retinol intakes and increased vegetables, grains, oils and tea. Males decreased fruit and carbohydrates and increased average intakes of meat, caloric drinks, water, protein, fat, polyunsaturated fatty acids (PUFAs), vitamin C and alpha-tocopherol. Both sexes presented mainly “fair” tracking levels [κw = 0.21–0.40]. Females with high (vs. low) parental education were more likely to increase their nut intake [OR = 3.8; 95 % CI = (1.7;8.8)], and less likely to decrease vitamin C intakes [0.2 (0.1;0.5)], while males were less likely to increase egg consumption [0.2 (0.1;0.5)] and n3 PUFAs [0.2 (0.1;0.5)]. Females with a higher (vs. low) family income were more likely to maintain medium wholegrain intakes [0.2 (0.1;0.7) for decrease vs. tracking, and 0.1 (0.0;0.5) for increase vs. tracking], and were less likely to decrease vitamin C intakes [0.2 (0.1;0.6)]. Males with high education were less likely to increase sugar-sweetened foods [0.1 (0.1;0.4)]. Finally, BMI in females was negatively associated with decreasing protein intakes [0.7 (0.6;0.9)]. In males BMI was positively associated with increasing margarine [1.4 (1.1;1.6)] and vitamin C intakes [1.4 (1.1;1.6)], and negatively associated with increasing n3 PUFA. Conclusions Average dietary intakes changed significantly, despite fair tracking levels, suggesting the presence of trends in dietary behaviour during puberty. Family income and parental education predominantly influenced intake changes. Our results support the rationale for dietary interventions targeting children, and suggest that sex-specific subpopulations, e.g. low socio-economic status, should be considered for added impact. AU - Harris, Carla AU - Flexeder, Claudia AU - Thiering, Elisabeth AU - Buyken, Anette AU - Berdel, Dietrich AU - Koletzko, Sibylle AU - Bauer, Carl-Peter AU - Brüske, Irene AU - Koletzko, Berthold AU - Standl, Marie ID - 28015 JF - BMC Public Health KW - Puberty KW - Dietary intake KW - Dietary changes KW - Tracking KW - Determinants KW - Epidemiology TI - Changes in dietary intake during puberty and their determinants: results from the GINIplus birth cohort study VL - 15 ER - TY - JOUR AU - Bloh, Thiemo AU - Bloh, Bea AU - van Ophuysen, Stefanie ID - 28033 IS - 4 JF - Empirische Pädagogik TI - Lernpotential durch Lehrerkooperation. Vorstellung eines Analyseansatzes zur Erfassung erfahrungsbezogener Lerngelegenheiten. VL - 29 ER - TY - GEN AU - Rojahn, Tobias ID - 281 TI - Load Balancing for Range Queries in a Dimension Invariant Peer-to-Peer Network ER - TY - JOUR AU - Gries, Thomas AU - Naudé, Wim AU - Bilkic, Natascha ID - 2815 JF - The Quarterly Review of Economics and Finance TI - Playing the Lottery or Dressing Up? A Model of Firm-Level Heterogeneity and the Decision to Export VL - 58 ER - TY - JOUR AU - Gries, Thomas AU - Feng, Yuanhua AU - Guo, Zhichao ID - 2816 IS - 2 JF - China Agricultural Economic Review TI - Changes of China’s agri-food exports to Germany caused by its accession to WTO and the 2008 financial crisis VL - 7 ER - TY - GEN AU - Kirsch, Michelle ID - 282 TI - Koordinierter Patentschutz in einer globalisierten Welt - Effizienz- und Anreizwirkungen auf die Arzneimittelversorgung in Entwicklungsländern ER - TY - JOUR AU - Iwanek, Peter AU - Dumitrescu, Roman AU - Reinhart, Felix AU - Brandis, Rinje ID - 28210 JF - productivITy (4 / 2015) TI - Expertensystem zur Steigerung der Effizienz im Bereich der Produktion ER - TY - GEN AU - Han, K. AU - Kundisch, Dennis AU - Weinhardt, C. AU - Zimmermann, Steffen ID - 2822 TI - Economics and Value of IS VL - 57 (5) ER - TY - THES AU - Bauer, Frank ID - 28222 SN - 978-3-942647-60-1 TI - Planungswerkzeug zur wissensbasierten Produktionssystemkonzipierung VL - 341 ER - TY - GEN AU - Gausemeier, Jürgen AU - Dumitrescu, Roman AU - Rammig, Franz-Josef AU - Schäfer, Wilhelm AU - Trächtler, Ansgar ID - 28223 SN - 978-3-942647-62-5 TI - 10. Paderborner Workshop Entwurf mechatronischer Systeme VL - 343 ER - TY - GEN AU - Gausemeier, Jürgen ID - 28224 SN - 978-3-942647-66-3 TI - Vorausschau und Technologieplanung. 11. Symposium für Vorausschau und Technologieplanung, Heinz Nixdorf Institut, 29. und 30. Oktober 2015 VL - 347 ER - TY - CONF AB - Today, software verification is an established analysis method which can provide high guarantees for software safety. However, the resources (time and/or memory) for an exhaustive verification are not always available, and analysis then has to resort to other techniques, like testing. Most often, the already achieved partial verification results arediscarded in this case, and testing has to start from scratch.In this paper, we propose a method for combining verification and testing in which testing only needs to check the residual fraction of an uncompleted verification. To this end, the partial results of a verification run are used to construct a residual program (and residual assertions to be checked on it). The residual program can afterwards be fed into standardtesting tools. The proposed technique is sound modulo the soundness of the testing procedure. Experimental results show that this combinedusage of verification and testing can significantly reduce the effort for the subsequent testing. AU - Czech, Mike AU - Jakobs, Marie-Christine AU - Wehrheim, Heike ED - Egyed, Alexander ED - Schaefer, Ina ID - 283 T2 - Fundamental Approaches to Software Engineering TI - Just test what you cannot verify! ER - TY - CONF AU - Hassan, Bassem AU - Stöcklein, Jörg AU - Berssenbrügge, Jan ED - Shumaker, Randall ED - Lackey, Stephanie ID - 28301 T2 - Virtual, Augmented and Mixed Reality VAMR 2015 Held as Part of HCI International 2015; LNCS 9179 TI - ARTiST - An Augmented Reality Testbed for Intelligent Technical Systems VL - LNCS 9179 ER - TY - JOUR AU - Trächtler, Ansgar AU - Iwanek, Peter AU - Scheffels, Gerald ID - 28302 JF - elektrotechnik - Automatisierung Sonderausgabe TI - Der Mensch als Vorbild ER - TY - CONF AB - The development of software-intensive technical systems (e.g., within the automotive industry) involves several engineering disciplines like mechanical, electrical, control, and software engineering. Model-based Systems Engineering (MBSE) coordinates these disciplines throughout the development by means of discipline-spanning processes and system models. Such a system model provides a common understanding of the system under development and serves as a starting point for the discipline-specific development. An integral part of MBSE is the requirements engineering on the system level. However, for the discipline-specific development to start, these requirements need to be refined, e.g., into specific requirements for the embedded software. Since existing MBSE approaches lack support for this refinement step, we conceived a systematic transition from MBSE to model-based software requirements engineering, which we present in this paper. We automated the steps of the transition where possible, in order to avoid error-prone and time-consuming manual tasks. We illustrate the approach with an example of an automotive embedded system. AU - Holtmann, Jörg AU - Bernijazov, Ruslan AU - Meyer, Matthias AU - Schmelter, David AU - Tschirner, Christian ID - 28303 T2 - Proceedings of the International Conference on Software and Systems Process (ICSSP) TI - Integrated Systems Engineering and Software Requirements Engineering for Technical Systems ER - TY - JOUR AB - In this sequel paper, the previously presented framework for the planning and optimisation of functionally graded components Biermann et al. (Production Engineering Research & Development 7(6):657–664, 2013) is applied within a case study. In addition to the application, the implementational infrastructure of the framework is provided and the preliminaries for applying the framework to the respective production system are presented. Hence, the practical realisation of the models and methods is documented. In the context of the case study, each step of the planning process is demonstrated in a visually assisted way. These visualisations are based on the specific steps of the wizard guiding the planner through the framework. As a central contribution, the specification of a non-trivial gradation and the planning of the corresponding process chain by means of the planning framework are demonstrated. AU - Biermann, Dirk AU - Gausemeier, Jürgen AU - Heim, Hans-Peter AU - Hess, Stefan AU - Petersen, Marcus AU - Ries, Angela AU - Wagner, T. ID - 28304 JF - Production Engineering Research & Development 9(3) TI - Planning and Optimisation of Manufacturing Process Chains for Functionally Graded Components – Part 2: Case Study on Self-reinforced Thermoplastic Composites ER - TY - CONF AU - Berssenbrügge, Jan AU - Trächtler, Ansgar AU - Schmidt, Christoph ID - 28305 T2 - Proceedings of the ASME 2015 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference TI - Visualization of Headlight Illumination for the Virtual Prototyping of Light-Based Driver Assistance Systems ER - TY - CONF AU - Bremer, Christian AU - Dumitrescu, Roman AU - Gausemeier, Jürgen ID - 28306 T2 - Stuttgarter Symposium für Produktentwicklung - SSP 2015 TI - Zustandsorientierte Modellierung flexibler Produktionssysteme ER - TY - CONF AB - In case of an unplanned machine breakdown, alternative resources have to be found quickly to avoid delays in following process steps. In order to counter this, an automated determination of alternative CNC-machines and a reliable validation is proposed. First, a rough process description is extracted from the NC program. Second, a suitable machine is searched in an ontology based on the rough process description. The ontology contains a description of all needed properties of a machine and rules to derive the resulting capabilities. Third, the NC program is validated on a virtual machine to ensure the absence of errors. AU - Rehage, Gerald AU - Gausemeier, Jürgen ID - 28307 T2 - 15th CIRP Conference on Modelling of Machining Operations (15th CMMO), Band 31 TI - Ontology-based determination of alternative CNC machines for a flexible resource allocation ER - TY - CONF AU - Eckelt, Daniel AU - Gausemeier, Jürgen ID - 28308 T2 - IP: Kooperation, Wettbewerb, Konfrontation, 37. Kollequium der TU Ilmenau über Patentinformationen, Band 37 TI - Vorsprung durch strategisches IP-Management - Gestiges Eigentum kennen, schützen und nutzen ER - TY - CONF AU - Rübbelke, René AU - Söllner, Christoph AU - Gausemeier, Jürgen ID - 28309 T2 - 24th International Association for Management of Technology Conference, Nr. 24 TI - Balancing the Strategic Product Portfolio based on Market and Competence Needs ER - TY - CONF AU - Placzek, Markus AU - Eberling, Christian AU - Gausemeier, Jürgen ID - 28310 T2 - 24th International Association for Management of Technology Conference Proceedings, Band 24 TI - Conception of a Knowledge Management System for Technologies ER - TY - CONF AU - Amshoff, Benjamin AU - Dülme, Christian AU - Echterfeld, Julian AU - Gausemeier, Jürgen ID - 28311 TI - Tagungsband zum Stuttgarter Symposium für Produktentwicklung (SSP) ER - TY - JOUR AU - Amshoff, Benjamin AU - Dülme, Christian AU - Echterfeld, Julian AU - Gausemeier, Jürgen ID - 28312 JF - International Journal of Innovation Management 19(3) TI - BUSINESS MODEL PATTERNS FOR DISRUPTIVE TECHNOLOGIES ER - TY - CONF AU - Echterfeld, Julian AU - Amshoff, Benjamin AU - Gausemeier, Jürgen ID - 28314 T2 - International Association for Management of Technology (IAMOT) TI - HOW TO USE BUSINESS MODEL PATTERNS FOR EXPLOITING DISRUPTIVE TECHNOLOGIES ER -