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 -