TY - CONF AB - Juli 2004 AU - Büker, Petra ID - 19924 TI - Kompetenzprofil Grundschullehrerin: Workshop im Rahmen des Berufsorientierungstages für BA/MA Studierende an der Universität Bielefeld ER - TY - CONF AU - Kao, Odej AU - Hovestadt, Matthias AU - Keller, Axel ID - 1993 T2 - Proc. Advanced Research Workshop on High Perfomance Computing: Technology and Applications TI - SLA-aware Job Migration in Grid Environments ER - TY - CONF AU - Burchard, Lars-Olof AU - Heiss, Hans-Ulrich AU - Hovestadt, Matthias AU - Kao, Odej AU - Keller, Axel AU - Linnert, Barry ID - 1994 T2 - Proceedings of the GI-Meeting on Operating Systems TI - An Architecture for SLA-aware Resource Management ER - TY - CONF AB - The next generation Grid will demand the Grid middleware to provide flexibility, transparency, and reliability. This implies the appliance of service level agreements to guarantee a negotiated level of quality of service. These requirements also affect the local resource management systems providing resources for the Grid. At this a gap between these demands and the features of today's resource management systems becomes apparent. In this paper we present an approach which closes this gap. Introducing the architecture of the virtual resource manager we highlight its main features of runtime responsibility, resource virtualization, information hiding, autonomy provision, and smooth integration of existing resource management system installations. AU - Burchard, Lars-Olof AU - Hovestadt, Matthias AU - Kao, Odej AU - Keller, Axel AU - Linnert, Barry ID - 1995 T2 - Proc. Int. Symposium on Cluster Computing and the Grid (CCGRID) TI - Virtual Resource Manager: An Architecture for SLA-aware Resource Management ER - TY - CONF AU - Bloh, Bea AU - Schürer, Sina AU - van Ophuysen, Stefanie ID - 28184 TI - Elterliche Prädiktoren für die Ablehnung von Schullaufbahnempfehlungen ER - TY - CONF AB - In this paper we introduce to virtualization of hardware on reconfigurable devices. We identify three main approaches denoted with temporal partitioning, virtualized execution, and virtual machine. For each virtualization approach, we discuss the application models, the required execution architectures, the design tools and the run-time systems. Then, we survey a selection of important projects in the field. AU - Plessl, Christian AU - Platzner, Marco ID - 2415 KW - hardware virtualization T2 - Proc. Int. Conf. on Engineering of Reconfigurable Systems and Algorithms (ERSA) TI - Virtualization of Hardware – Introduction and Survey ER - TY - CONF AU - Groppe, Sven AU - Böttcher, Stefan AU - Birkenheuer, Georg ID - 2416 T2 - Proc. Int. Conf. on Enterprise Information Systems (ICEIS) TI - Efficient Querying of Transformed XML Documents ER - TY - CONF AU - Groppe, Sven AU - Böttcher, Stefan AU - Heckel, Reiko AU - Birkenheuer, Georg ID - 2417 T2 - Proc. East-European Conf. on Advances in Databases and Information Systems (ADBIS) TI - Using XSLT Stylesheets to Transform XPath Queries ER - TY - GEN AU - Betz, Stefan ID - 2594 TI - Programmorientierte Materialbedarfsermittlung auf Basis der Fuzzy-Set-Theorie VL - 02 ER - TY - BOOK ED - Betz, Stefan ID - 2595 TI - E-Business im industriellen Management - Theoretische Fundierung und praktische Umsetzung im Mittelstand ER - TY - CHAP AU - Betz, Stefan ED - Betz, Stefan ID - 2596 T2 - E-Business im industriellen Management - Theoretische Fundierung und praktische Umsetzung im Mittelstand TI - Auswahl einer E-Procurement-Strategie als betriebswirtschaftliches Entscheidungsproblem ER - TY - JOUR AB - A model for simulation of the three-dimensional morphology of nano-structured aggregates formed by concurrent coagulation and sintering is presented. Diffusion controlled cluster–cluster aggregation is assumed to be the prevailing coagulation mechanism which is implemented using a Monte–Carlo algorithm. Sintering is modeled as a successive overlapping of spherical primary particles, which are allowed to grow as to preserve overall mass. Simulations are characterized by individual ratios τ of characteristic collision to fusion time. A number of resulting aggregate-structures is displayed and reveals structure formation by coagulation and sintering for different values of τ. These aggregates are described qualitatively and quantitatively by their mass fractal dimension Df and radius of gyration. The fractal dimension increases from 1.86 for pure aggregation to ≈ 2.75 for equal characteristic time scales. As sintering turns out to be more and more relevant, increasingly compact aggregates start to form and the radius of gyration decreases significantly. The simulation results clearly reveal a strong dependence of the fractal dimension on the kinetics of the concurrent coagulation and sintering processes. Considering appropriate values of Df in aerosol process simulations may therefore be important in many cases. AU - Schmid, Hans-Joachim AU - Tejwani, Saurabh AU - Artelt, Christian AU - Peukert, Wolfgang ID - 26152 IS - 6 JF - Journal of Nanoparticle Research SN - 1388-0764 TI - Monte Carlo simulation of aggregate morphology for simultaneous coagulation and sintering VL - 6 ER - TY - JOUR AB - A high-temperature short residence time flow reactor system has been realized for the investigation of the gas phase sintering kinetics of nanoparticles separated from all other synthesis mechanisms, e.g., chemical reaction, nucleation, coagulation and condensation. Major components are a hot-wall tubular reactor for the production of unsintered aggregates consisting of spherical primary particles in the size range 10–80 nm and a sintering reactor for the investigation of the sintering kinetics at well-defined temperature and residence time history. Therefore, rapid heating and quenching of the particles at the beginning and at the end of the reaction zone, respectively, is maintained. Main parameters in the sintering reactor are: temperatures up to 1873 K and residence times in the range 8–1000 ms. The reactor conditions are characterized by temperature profile measurements with a newly constructed suction thermocouple probe and by computational fluid dynamics simulations of the residence time distributions. Exemplary results of the sintering of silica nanoparticles obtained by transmission electron microscopy analysis are presented. AU - Kirchhof, Martin J. AU - Schmid, Hans-Joachim AU - Peukert, Wolfgang ID - 26154 IS - 11 JF - Review of Scientific Instruments SN - 0034-6748 TI - Reactor system for the study of high-temperature short-time sintering of nanoparticles VL - 75 ER - TY - JOUR AU - Messerer, A. AU - Schmid, Hans-Joachim AU - Knab, C. AU - Pöschl, U. AU - Nießner, R. ID - 26155 IS - 8 JF - Chemie Ingenieur Technik SN - 0009-286X TI - Erhöhung der Abscheidung ultrafeiner Dieselrußpartikeln durch Mikrokugelbeschichtung auf metallträgerbasierten Katalysatorstrukturen VL - 76 ER - TY - CONF AU - Volbert, Klaus ID - 26411 T2 - Proceedings of the 2004 joint workshop on Foundations of mobile computing - DIALM-POMC '04 TI - Experimental analysis of adjustable sectorized topologies for static ad hoc networks ER - TY - JOUR AU - Hellmich, Frank ID - 26813 IS - 1/2 JF - Mathematikunterricht TI - Inhaltliche, kontextuelle und aktivitätsbezogene Aspekte bei räumlich-geometrischen Problemstellungen VL - 50 ER - TY - BOOK AU - Hellmich, Frank AU - Grüßing , Meike ID - 26845 TI - Aufgabenstellungen zur Erfassung mathematischer Kompetenz im vierten Schuljahr ER - TY - CONF AU - Wehrheim, Heike ED - H. Reussner, Ralf ED - A. Stafford, Judith ED - A. Szyperski, Clemens ID - 3233 T2 - Architecting Systems with Trustworthy Components, International Seminar, Dagstuhl Castle, Germany, December 12-17, 2004. Revised Selected Papers TI - Refinement and Consistency in Component Models with Multiple Views ER - TY - CONF AU - Möller, Michael AU - Olderog, Ernst-Rüdiger AU - Rasch, Holger AU - Wehrheim, Heike ED - A. Boiten, Eerke ED - Derrick, John ED - Smith, Graeme ID - 3234 T2 - Integrated Formal Methods, 4th International Conference, {IFM} 2004, Canterbury, UK, April 4-7, 2004, Proceedings TI - Linking {CSP-OZ} with {UML} and Java: {A} Case Study ER - TY - CONF AU - Wehrheim, Heike ED - B{\'{e}}zivin, Jean ED - Heckel, Reiko ID - 3235 T2 - Language Engineering for Model-Driven Software Development, 29. February - 5. March 2004 TI - Refinement and Consistency in Multiview Models ER - TY - JOUR AU - Gries, Thomas ID - 3299 JF - Science Research Management TI - International Spill-Over of Technologies and Regional Agglomeration and Development VL - 25 ER - TY - CHAP AU - Gilroy, Bernard Michael AU - Gries, Thomas AU - Naudé, Willem A. AU - Schmidt, K.-H. ED - Gilroy, Bernard Michael ED - Gries, Thomas ED - Naudé, Willem A. ID - 3331 T2 - Multinational Enterprises, Foreign Direct Investment and Growth in Africa: South African Perspectives TI - Obstacles Facing German Enterprises in South Africa ER - TY - JOUR AU - Bauer, Johannes AU - Festner, Dagmar AU - Gruber, Hans AU - Harteis, Christian AU - Heid, Helmut ID - 3596 IS - 5 JF - Journal of Workplace Learning TI - The effects of epistemological beliefs on workplace learning ER - TY - CHAP AU - Harteis, Christian AU - Gruber, Hans ED - Boshuizen, Els ED - Bromme, Rainer ED - Gruber, Hans ID - 3599 T2 - Professional learning: Gaps and transitions on the way from novice to expert TI - Competence-supporting working conditions ER - TY - JOUR AU - Heid, Helmut AU - Harteis, Christian ID - 3603 JF - Zeitschrift für Berufs-und Wirtschaftspädagogik, Beiheft TI - Zur Vereinbarkeit ökonomischer und pädagogischer Prinzipien in der modernen betrieblichen Personal-und Organisationsentwicklung ER - TY - CHAP AU - Gruber, Hans AU - Harteis, Christian AU - Rehrl, Monika ED - Reinmann, Gabi ED - Mandl, Heinz ID - 3606 T2 - Psychologie des Wissensmanagements. Perspektiven, Theorien und Methoden TI - Wissensmanagement und Expertise ER - TY - JOUR AU - Harteis, Christian ID - 3614 IS - 2 JF - Zeitschrift für Erziehungswissenschaft TI - Zur Diskussion über die Konvergenz ökonomischer und pädagogischer Prinzipien betrieblicher Personal-und Organisationsentwicklung ER - TY - CONF AU - Harteis, Christian AU - Bauer, Johannes AU - Festner, Dagmar AU - Gruber, Hans ID - 3618 T2 - Current issues in adult learning and motivation. 7th Adult Education Colloquium TI - Self-determination in daily working life ER - TY - JOUR AU - Harteis, Christian ID - 3619 IS - 29 JF - VOCATIONAL TRAINING-BERLIN-CEDEFOP- TI - The learning organisation as seen by workers ER - TY - BOOK ED - Hans, Gruber ED - Harteis, Christian ED - Helmut, Heid ED - Meier, Bettina ID - 3643 TI - Kapital und Kompetenz: Veränderungen in der Arbeitswelt und ihre Auswirkungen aus erziehungswissenschaftlicher Sicht ER - TY - JOUR AU - Harteis, Christian AU - Bauer, Johannes AU - Festner, Dagmar AU - Gruber, Hans ID - 3648 IS - 2 JF - UNTERRICHTSWISSENSCHAFT. TI - Selbstbestimmung im Arbeitsalltag ER - TY - JOUR AU - Bauer, Johannes AU - Festner, Dagmar AU - Harteis, Christian AU - Heid, Helmut AU - Gruber, Hans ID - 3651 IS - 1 JF - Zeitschrift für Berufs-und Wirtschaftspädagogik TI - Fehlerorientierung im betrieblichen Arbeitsalltag. Ein Vergleich zwischen Führungskräften und Beschäftigten ohne Führungsfunktion VL - 100 ER - TY - CHAP AU - Harteis, Christian AU - Festner, Dagmar ED - Gruber, Hans ED - Harteis, Christian ED - Heid, Helmut ED - Meier, Bettina ID - 3661 T2 - Kapital und Kompetenz TI - Förderung und Anwendung individueller Kompetenz im Arbeitsalltag ER - TY - CHAP AU - Harteis, Christian AU - Bauer, Johannes AU - Coester, Helene ED - Gruber, Hans ED - Harteis, Christian ED - Heid, Helmut ED - Meier, Bettina ID - 3662 T2 - Kapital und Kompetenz TI - Betriebliche Personal-und Organisationsentwicklung zwischen ökonomischen und pädagogischen Überlegungen ER - TY - CHAP AU - Harteis, Christian AU - Bauer, Johannes AU - Coester, Helene ED - Gruber, Hans ED - Harteis, Christian ED - Heid, Helmut ED - Meier, Bettina ID - 3670 T2 - Kapital und Kompetenz: Veränderungen der Arbeitswelt und ihre Auswirkungen aus erziehungswissenschaftlicher Sicht TI - Betriebliche Personal- und Organisationsentwickllung zwischen ökonomischen und pädagogischen Überlegungen ER - TY - CHAP AU - Blömer, Johannes AU - Guajardo, Jorge AU - Krummel, Volker ID - 3011 SN - 0302-9743 T2 - Selected Areas in Cryptography TI - Provably Secure Masking of AES ER - TY - CHAP AU - Blömer, Johannes AU - May, Alexander ID - 3012 SN - 0302-9743 T2 - Public Key Cryptography – PKC 2004 TI - A Generalized Wiener Attack on RSA ER - TY - CHAP AU - May, Alexander ID - 3014 SN - 0302-9743 T2 - Public Key Cryptography – PKC 2004 TI - Secret Exponent Attacks on RSA-type Schemes with Moduli N=p^{r}q ER - TY - CHAP AU - May, Alexander ID - 3015 SN - 0302-9743 T2 - Advances in Cryptology – CRYPTO 2004 TI - Computing the RSA Secret Key Is Deterministic Polynomial Time Equivalent to Factoring ER - TY - CONF AU - Blömer, Johannes AU - Otto, Martin AU - Seifert, Jean-Pierre ID - 3017 SN - 1581137389 T2 - Proceedings of the 10th ACM conference on Computer and communication security - CCS '03 TI - A new CRT-RSA algorithm secure against bellcore attacks ER - TY - JOUR AU - Gries, Thomas AU - Sievert, Gerhard AU - Wieneke, Axel ID - 3064 JF - International Economics and Economic Policy TI - Interbank market frictions, international banks and growth VL - 1 ER - TY - JOUR AU - Gries, Thomas AU - Langeleh, Dirk ID - 3065 IS - 3 JF - Perspektiven der Wirtschaftspolitik TI - Anreizkompatibilität als zentrales Element eines neu gestalteten Gesundheitsmarktes VL - 5 ER - TY - GEN AU - Rührup, Stefan AU - Schindelhauer, Christian ID - 26992 TI - Traffic and Hop Efficient Position-based Routing using a Cell Structure ER - TY - JOUR AU - Buyken, Anette AU - Hahn, S AU - Kroke, A ID - 27750 JF - International Journal of Obesity SN - 0307-0565 TI - Differences between recumbent length and stature measurement in groups of 2- and 3-y-old children and its relevance for the use of European body mass index references ER - TY - GEN AU - Schlegel-Matthies, Kirsten ID - 27925 TI - Verbraucherbildung im Forschungsprojekt REVIS – Grundlagen ER - TY - JOUR AU - Schlegel-Matthies, Kirsten ID - 27926 JF - Campus Culinaire TI - „Was gibt’s heute?“ Aktuelle Ansätze der Ernährungsbildung VL - 1 ER - TY - GEN AB - Today, in software intensive projects a huge amount of the budget flows into the analysis of the already existing system. The reason for the high costs results mainly from the fact that analyses are often made manually or with automatic tool support, which is inappropriate for analyzing large systems. Semi-automatic analysis approaches usually use a notion of fuzziness to overcome this limitation, but inherit the problem of selecting appropriate initial values. In this paper we present an approach to adapt the initial values of our semi-automatic reverse engineering process. We provide the reverse engineer with accuracy information for results produced by a rule-based inference algorithm. Based on the changes of the results done by the reverse engineer we automatically adapt a credibility value of each rule, which previously has been used to compute the accuracy of the result. The adaption fits seamlessly into our overall analysis process. First tests show that it is suitable for the calibration of our fuzzyfied rule-based pattern recognition approach. AU - Niere, Jörrg AU - Meyer, Matthias AU - Wendehals, Lothar ID - 20933 TI - User-driven adaption in rule-based pattern recognition ER - TY - CONF AU - Meschut, Gerson AU - Fuhrmann, T. ID - 21162 T2 - Tagungsband zum 4. Kolloquium „Gemeinsame Forschung in der Klebtechnik“ der DECHEMA TI - Kleben von CFK-Metall-Strukturen im Fahrzeug ER - TY - CONF AU - Meschut, Gerson ID - 21164 TI - Forschungsbedarf in der Klebtechnik aus Sicht der Automobilindustrie ER - TY - CONF AU - Bischof, S. AU - Fricke, A. AU - Meschut, Gerson ID - 21165 T2 - Tagungsband zur Swiss Bondung ´04 TI - Adhesive bonding and mechanical joining for planking of spaceframe-structures with thermoplastics ER - TY - CONF AU - Meschut, Gerson AU - Goede, M. ID - 21166 SN - ISBN 3-8322-2840-3 T2 - Tagungsband zur 9. International Aachen Welding Conference: Joining in Traffic and Transportation Industry – Processes, Progress, Applications TI - New material and design concepts for constructions of vehicles – challenges for thermal an cold joining techniques ER - TY - JOUR AU - Disse, T. AU - Maciej, M. AU - Meschut, Gerson AU - Piccolo, S. AU - Timmermann, R. AU - Wibbeke, T.-M. ID - 21167 IS - 7-8 JF - Adhäsion TI - Kleben und Hybridfügen von Leichtbaustrukturen für den Automobilbau VL - 48 ER - TY - JOUR AU - Letsch, S. AU - Meschut, Gerson AU - Küting, J. AU - Peitz, V. AU - Timmermann, R. AU - Schmid, L. ID - 21168 IS - 9 JF - Schweißen und Schneiden TI - Mechanische Fügetechnik für die Mischbauweise – Teil 1: Systemoptimierungen VL - 56 ER - TY - CONF AU - Hahn, O. AU - Schumann, S. AU - Meschut, Gerson AU - Fuhrmann, T. ID - 21169 TI - Material-Secific joining techniques for magnesium body structures ER - TY - JOUR AU - Letsch, S. AU - Meschut, Gerson AU - Küting, J. AU - Peitz, V. AU - Timmermann, R. AU - Schmid, L. ID - 21170 IS - 10 JF - Schweißen und Schneiden TI - Mechanische Fügetechnik für die Mischbauweise – Teil 2: Neuartige Fügeverfahren VL - 56 ER - TY - JOUR AU - Kolman, Petr AU - Scheideler, Christian ID - 2119 IS - 3 JF - Algorithmica TI - Simple On-Line Algorithms for the Maximum Disjoint Paths Problem ER - TY - CONF AU - Awerbuch, Baruch AU - Scheideler, Christian ID - 2120 T2 - ICALP TI - Group Spreading: A Protocol for Provably Secure Distributed Name Service VL - 3142 ER - TY - CONF AU - Riley, Chris AU - Scheideler, Christian ID - 2121 T2 - IPDPS TI - A Distributed Hash Table for Computational Grids ER - TY - CONF AU - Meschut, Gerson ID - 21217 T2 - Tagungsband zum 2. Böllhoff-Fachkolloquium TI - Zukünftige Werkstoff- und Bauweisenkonzepte im Automobilbau - Herausforderungen für die Gewindetechnologie ER - TY - CONF AU - Bye, C. AU - Draht, T. AU - Küting, J. AU - Lübbers, R. AU - Meschut, Gerson AU - Ruther, M. ID - 21218 SN - ISBN 3-9809524-I-X T2 - Tagungsband zum 11. Paderborner Symposium Fügetechnik „Mechanisches Fügen und Kleben“ TI - Fügen von Kunststoffen im strukturellen Leichtbau ER - TY - CONF AU - Awerbuch, Baruch AU - Scheideler, Christian ID - 2122 T2 - IPTPS TI - Robust Distributed Name Service VL - 3279 ER - TY - GEN AU - Hahn, O. AU - Meschut, Gerson ID - 21226 TI - Druckfügeverfahren und damit hergestellte Rahmen ER - TY - GEN AU - Amedick, Jürgen AU - Hahn, Ortwin AU - Kurzok, Jan AU - Letsch, Stefan AU - Meschut, Gerson AU - Peitz, Volker AU - Timmermann, Rüdiger ID - 21228 TI - Fügeverfahren und Fügevorrichtung zum Verbinden von überlappend angeordneten Fügeteilen ER - TY - CONF AU - Ateniese, Giuseppe AU - Riley, Chris AU - Scheideler, Christian ID - 2123 T2 - IWIA TI - Survivable Monitoring in Dynamic Networks ER - TY - CONF AU - Awerbuch, Baruch AU - Scheideler, Christian ID - 2124 T2 - SODA TI - The hyperring: a low-congestion deterministic data structure for distributed environments ER - TY - CONF AU - Awerbuch, Baruch AU - Scheideler, Christian ID - 2125 T2 - SPAA TI - Consistent and compact data management in distributed storage systems ER - TY - CONF AU - Bhargava, Ankur AU - Kothapalli, Kishore AU - Riley, Chris AU - Scheideler, Christian AU - Thober, Mark ID - 2126 T2 - SPAA TI - Pagoda: a dynamic overlay network for routing, data management, and multicasting ER - TY - CONF AU - Bagchi, Amitabha AU - Bhargava, Ankur AU - Chaudhary, Amitabh AU - Eppstein, David AU - Scheideler, Christian ID - 2127 T2 - SPAA TI - The effect of faults on network expansion ER - TY - JOUR AU - Unger, L. AU - Bauch, M. AU - Baudry, A. AU - Bungenstock, M. AU - Mertsching, B. AU - Oevel, Gudrun AU - Padberg, K. AU - Thiere, B. ID - 17312 IS - 1 JF - SoftwareTechnikTrends TI - math-kit - Ein multimedialer Baukasten für die Mathematikausbildung im Grundstudium VL - 24 ER - TY - CONF AU - Brinkmann, André AU - Heidebuer, Michael AU - Meyer auf der Heide, Friedhelm AU - Rückert, Ulrich AU - Salzwedel, Kay AU - Vodisek, Mario ED - Kobler, Ben ED - Hariharan, P. C. ID - 17346 T2 - 21st {IEEE} Conference on Mass Storage Systems and Technologies / 12th {NASA} Goddard Conference on Mass Storage Systems and Technologies, Greenbelt, Maryland, USA TI - V:Drive - Costs and Benefits of an Out-of-Band Storage Virtualization System ER - TY - JOUR AU - Christ, A. AU - Zentgraf, Thomas AU - Kuhl, J. AU - Tikhodeev, S. G. AU - Gippius, N. A. AU - Giessen, H. ID - 1746 IS - 12 JF - Physical Review B SN - 1098-0121 TI - Optical properties of planar metallic photonic crystal structures: Experiment and theory VL - 70 ER - TY - JOUR AU - Zentgraf, Thomas AU - Christ, A. AU - Kuhl, J. AU - Giessen, H. ID - 1747 IS - 24 JF - Physical Review Letters SN - 0031-9007 TI - Tailoring the Ultrafast Dephasing of Quasiparticles in Metallic Photonic Crystals VL - 93 ER - TY - GEN AU - Peckhaus, Volker ED - Hoffmann, Dieter ED - Laitko, Hubert ED - Müller-Wille, Staffan ID - 17684 T2 - Lexikon der bedeutenden Naturwissenschaftler in drei Bänden, Bd. 3: Men–Z TI - Wolff, Christian Freiherr von ER - TY - CONF AU - Sohler, Christian AU - Damerow, Valentina ID - 18777 T2 - Proceedings of the 20th European Workshop on Computational Geometry (EWCG'04) TI - Smoothed Number of Extreme Points under Uniform Noise ER - TY - CONF AB - Given a point set P in the d-dimensional unit hypercube, we give upper bounds on the maximal expected number of extreme points when each point is perturbed by small random noise chosen independently for each point from the same noise distribution Δ. Our results are parametrized by the variance of the noise distribution. For large variance we essentially consider the average case for distribution Δ while for variance 0 we consider the worst case. Hence our results give upper bounds on the number of extreme points where our input distributions range from average case to worst case.
Our main contribution is a rather general lemma that can be used to obtain upper bounds on the expected number of extreme points for a large class of noise distributions. We then apply this lemma to obtain explicit bounds for random noise coming from the Gaussian normal distribution of variance σ² and the uniform distribution in a hypercube of side length &epsilon. For these noise distributions we show upper bounds of O( (1/ σ )^d * log^3/2 * d - 1 n ) and O( ( (n log n) / ε )^d/(d+1) ), respectively. Besides its theoretical motivation our model is also motivated by the observation that in many applications of convex hull algorithms the input data is inherently noisy, e.g. when the data comes from physical measurement or imprecise arithmetic is used. AU - Damerow, Valentina AU - Sohler, Christian ID - 18778 SN - 0302-9743 T2 - Proceedings of the 12th European Symposium on Algorithms (ESA'04) TI - Extreme Points Under Random Noise ER - TY - CONF AB - A limiting factor in the performance of a render- ing system is the number of state changes, i.e., changes of the attributes material, texture, shader program, etc., in the stream of rendered primitives. We propose to include a small buffer between appli- cation and graphics hardware in the rendering sys- tem. This pipeline buffer is used to rearrange the incoming sequence of primitives on-line and locally in such a way that the number of state changes is minimized. This method is generic; it can be easily integrated into existing rendering systems. In our experiments a pipeline buffer reduces the number of state changes by an order of magnitude and achieves almost the same rendering time as an optimal, i.e., presorted, sequence without pipeline buffer. Due to its simple structure and its low mem- ory requirements this method can easily be imple- mented in software or even hardware. AU - Sohler, Christian AU - Krokowski, Jens AU - Räcke, Harald AU - Westermann, Matthias ID - 18785 T2 - Proceedings of the Vision, Modeling, and Visualization Conference (VMV 2004) TI - Reducing State Changes with a Pipeline Buffer ER - TY - CONF AU - Sohler, Christian AU - Czumaj, Artur ID - 18786 IS - 1 T2 - Automata, Languages and Programming (ICALP) TI - Sublinear-Time Approximation for Clustering via Random Sampling ER - TY - BOOK AB - 2. Auflage 2006 AU - Eke, Norbert Otto AU - Allkemper, Alo ID - 19010 TI - Literaturwissenschaft ER - TY - CONF AU - Aguiar, Ana AU - Karl, Holger AU - Wolisz, Adam ID - 1911 T2 - Proceedings of European Wireless 2004, Barcelona / Spain TI - Channel Adaptive Techniques in the Presence of Channel Prediction Inaccuracy ER - TY - CHAP AU - Seng, Eva- Maria ID - 19143 T2 - Katalog der Landeskunstausstellung Sachsen-Anhalts in Magdeburg 2004 TI - Einleitung „in der zeit“ – kunst aus sachsen-anhalt 2004 ER - TY - CHAP AU - Eke, Norbert Otto ID - 19347 T2 - Mahagonny.com. The Brecht Yearbook 29 TI - Götter in der Stadt oder: „Wo Aas ist, sammeln sich die Geier!“ Stadtuntergänge bei Brecht und Trolle VL - 29 ER - TY - CHAP AU - Eke, Norbert Otto ED - Balme, Christopher ED - Moninger, Markus ID - 19348 T2 - Crossing Media. Theater – Film – Fotografie – Neue Medien TI - Intermedialität und Theatralisierung: Peter Greenaways Film-Theater VL - 5 ER - TY - CHAP AU - Eke, Norbert Otto ED - Mayer, Brigitte ED - Schulte, Christian ID - 19349 T2 - „Der Text ist der Coyote“. Heiner Müller Bestandsaufnahme TI - Eingebunkert – Stalin/Hitler: eine Konfiguration ER - TY - JOUR AU - Weiß, M AU - Barthel, T AU - Baumeister, Jochen ID - 20482 JF - ForschungsForum TI - Stressmodelle und Analyse der Hirntätigkeit VL - 7 ER - TY - CONF AB - Object-oriented software development is a subject area difficult to teach, espcially to beginners. They face a lot of abstraction and (from a beginners point of view) isolated topics, such as the syntax and semantics of a programming language, the functionality of a software development environment and basic object-oriented concepts. Although many professionals in education believe in the ``object first'' approach as the best method of introducing object-oriented concepts, there is no common agreement on how to start such courses. Current study programs often begin by teaching a programming language, instead of focusing on the basics of object-oriented concepts. In the last years a learning environment was developed based on a visual programming language to abstract away from details. It assists teaching step-by-step object-oriented concepts and the syntax and semantics of a programming language in secondary schools and first year university courses. Our goal is to port this learning environment to the widely used IDE Eclipse. AU - Meyer, Matthias AU - Wendehals, Lothar ID - 20931 T2 - Proc. of the Eclipse Technology eXchange Workshop (ETX), Satellite Event of the 19th Conference on Object-Oriented Programming, Systems, Languages, and Applications (OOPSLA), Vancouver, Canada TI - Teaching Object-Oriented Concepts with Eclipse ER - TY - CONF AB - Design recovery, which means extracting design documents from source code, is usually done by static analysis techniques. Analysing behaviour by static analysis is very imprecise. We combine static and dynamic analysis to increase the preciseness of our design recovery process. In this paper we present an approach to collect data for the dynamic analysis by recording method calls during a program's execution. To reduce the amount of information we monitor only relevant classes and methods identified by static analysis. AU - Wendehals, Lothar AU - Meyer, Matthias AU - Elsner, Andreas ID - 20932 T2 - Proc. of the 2nd International Fujaba Days 2004, Darmstadt, Germany TI - Selective Tracing of Java Programs VL - tr-ri-04-253 ER - TY - JOUR AU - Sureth-Sloane, Caren AU - Müller, Jens AU - Nordhoff, Daniel ID - 17969 IS - 11 JF - BBK - Buchführung, Bilanzierung, Kostenrechnung TI - Aktuelle Änderungen beim Betriebsausgabenabzug - Geschenke, Bewirtungskosten, Fahrtkostenzuschüsse und Halbjahres-AfA VL - 30 ER - TY - JOUR AU - Ziegler, Martin AU - Brattka, Vasco ID - 17986 IS - 1-3 JF - Theoretical Computer Science TI - Computability in linear algebra VL - 326 ER - TY - CONF AB - For uniform computability of regular sets in Euclidean space, previous work has identified twelve 'basic' notions, to (pairs of) which many previous notions considered in literature were shown to be equivalent. With respect to those basic notions, we now investigate on the computability of natural OPERATIONS on regular sets: union, intersection, complement, convex hull, image, and pre-image under suitable classes of functions. AU - Ziegler, Martin ID - 18260 IS - 4-5 SN - 0942-5616 T2 - Computability and Complexity in Analysis TI - Computable operators on regular sets VL - 50 ER - TY - CONF AB - We generalize univariate multipoint evaluation of polynomials of degree n at sublinear amortized cost per point. More precisely, it is shown how to evaluate a bivariate polynomial p of maximum degree less than n, specified by its n^2 coefficients, simultaneously at n^2 given points using a total of O(n^2.667) arithmetic operations. In terms of the input size N being quadratic in n, this amounts to an amortized cost of O(N^0.334) per point. AU - Nüsken, Michael AU - Ziegler, Martin ID - 18263 SN - 0302-9743 T2 - Proc. 12th Annual Symposium on Algorithms (ESA'04) TI - Fast Multipoint Evaluation of Bivariate Polynomials VL - 3221 ER - TY - CONF AB - For $c in REAL$, a $c$-spanner is a subgraph of a complete Euclidean graph satisfying that between any two vertices there exists a path of weighted length at most $c$ times their geometric distance. Based on this property to approximate a complete weighted graph, sparse spanners have found many applications, e.g., in FPTAS, geometric searching, and radio networks. For geometric searching, it turned out to suffice whether the radius rather than the length of some path between any two vertices is bounded relatively to their geometric distance; this is the defining property of weak spanners. Finally regarding radio network applications, a power spanner accounts for the total energy afforded for a wireless transmission with the requirement that the sum of the squares of the lengths of some path between any two planar vertices must be bounded relatively to the square of their geometric distance (or higher powers up to 6 or even 8).

While it is known that any $c$-spanner is also both a weak $C_1$-spanner and a $C_2$-power spanner (for appropriate $C_1,C_2$ depending only on $c$ but not on the graph under consideration), we show that the converse fails: There exists a family of $c_1$-power spanners that are no weak $C$-spanners and also a family of weak $c_2$-spanners that are no $C$-spanners for any fixed $C$ (and thus no uniform spanners, either). However the deepest result of the present work reveals that, surprisingly, any weak spanner is also a uniform power spanner. We further generalize the latter notion by considering $(c,delta)$-power spanners where the sum of the $delta$-th powers of the lengths has to be bounded; so $(cdot,2)$-power spanners coincide with the usual power spanners and $(cdot,1)$-power spanners are classical spanners. Interestingly, these $(cdot,delta)$-power spanners form a strict hierarchy where the above results still hold for any $deltageq2$; some even hold for $delta>1$ while counterexamples reveal others to fail for $delta<2$. In fact we show that in general every self-similar curve of fractal dimension $d>delta$ is no $(C,delta)$-power spanner for any fixed $C$. AU - Schindelhauer, Christian AU - Volbert, Klaus AU - Ziegler, Martin ID - 18279 SN - 0302-9743 T2 - Proc. of 15th Annual International Symposium on Algorithms and Computation (ISAAC'04) TI - Spanners, Weak Spanners, and Power Spanners for Wireless Networks VL - 3341 ER - TY - CONF AB - The visualisation of manufacturing-processes assists the user in understanding and analysis. Typically he can move free and unguided in a virtual environment which visualizes the entire process. Thus knowledge and conclusions are to some extend acquired on a random base. This article describes the development of a tool, which enables the user to interactively improve significant production processes in the simulation. He moves in a virtual 3D-environment (walkthrough system) and is able to acquire automatically calculated indications for significant processes. At the same time the simulation considers significant objects in a more detailed way. If the viewer is interested in a significant process, he is automatically guided to the relevant location where he can examine the critical situation by modification of the simulation model. AU - Mueck, Bengt AU - Dangelmaier, Wilhelm AU - Laroque, Christoph AU - Fischer, Matthias AU - Kortenjan, Michael ID - 18364 T2 - Simulation and Visualisation 2004 TI - Guidance of Users in Interactive 3D-Visualisations of Material Flow Simulations ER - TY - JOUR AU - Oesterdiekhoff, Brigitte ID - 18447 IS - 5 JF - Informatik Spektrum TI - Transcoding von Webinhalten VL - 27 ER - TY - CONF AU - Oesterdiekhoff, Brigitte ID - 18448 T2 - Proceedings of IFIP Working Conference on Distributed and Parallel Embedded Systems (DIPES'04) TI - Internet Premium Services for Flexible Format Distributed Devices ER - TY - JOUR AU - Kretschmer, Ralf AU - Denzer, Vera AU - Zimmer, Detmar ID - 22325 IS - 11 JF - QZ - Qualität und Zuverlässigkeit TI - Bereichsübergreifendes Toleranzmanagement. Damit es rund läuft VL - 49 ER - TY - JOUR AU - Koke, Isabel AU - Funke, Herbert AU - Ferber, Ferdinand ID - 23332 JF - Posterbeitrag AG Composite TI - Faserverbundwerkstoffe - experimentelle Bestimmung mechanischer Kenngrößen ER - TY - JOUR AU - Trächtler, Ansgar ID - 23333 IS - 1 JF - Int. J. Vehicle Design TI - Integrated Vehicle Dynamics Control Using Active Brake, Steering, and Suspension Systems VL - 36 ER - TY - JOUR AU - Albert, Amos AU - Trächtler, Ansgar ID - 23334 JF - 13. Aachener Kolloquium Fahrzeug- und Motorentechnik TI - Verteilte Fahrdynamikregelung mit zeitgesteuerter Architektur am Beispiel des Bosch-Konzeptes VDM ER - TY - JOUR AU - Trächtler, Ansgar ID - 23335 JF - CTI-Konferenz "Federung und Dämpfung" TI - Zusammenspiel von regelbaren Feder-/Dämpfersystemen mit ESP ER - TY - JOUR AU - Trächtler, Ansgar ID - 23336 JF - 2. VDI/VDE-Fachtagung zur Steuerung und Regelung von Fahrzeugen und Motoren AUTOREG TI - Integrierte Fahrdynamikregelung mit ESP, aktiver Lenkung und aktivem Fahrwerk ER -