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 $C$. }, author = {Schindelhauer, Christian and Volbert, Klaus and Ziegler, Martin}, booktitle = {Proc. of 15th Annual International Symposium on Algorithms and Computation (ISAAC'04)}, isbn = {9783540241317}, issn = {0302-9743}, pages = {805--821}, publisher = {Springer }, title = {{Spanners, Weak Spanners, and Power Spanners for Wireless Networks}}, doi = {10.1007/978-3-540-30551-4_69}, volume = {3341}, year = {2004}, } @article{18281, author = {Tophinke, Doris}, journal = {Infodienst. Kulturpädagogische Nachrichten }, pages = {26--27}, title = {{Quatschwörterverse und Satzklötze. Sprachförderung im Kindergarten}}, volume = {71}, year = {2004}, } @misc{18495, author = {Peckhaus, Volker}, booktitle = {Zentralblatt für Mathematik und ihre Grenzgebiete [Zbl. 1033.03002]}, title = {{Newen, Albert/Nortmann, Ulrich/Stuhlmann-Laeisz, Rainer (Hgg.), Building on Frege. New Essays on Sense, Content, and Concept, CSLI Publications: Standford, CA 2001}}, year = {2004}, } @misc{18488, author = {Peckhaus, Volker}, booktitle = {Zentralblatt für Mathematik und ihre Grenzgebiete [Zbl. 1030.01030]}, title = {{Takeuti, Gaisi, Memoirs of a Proof Theorist. Gödel and other Logicians, ed. Mariko Yasugi/Nicholas Passell, World Scientific: New Jersey u.a. 2003}}, year = {2004}, } @misc{18483, author = {Peckhaus, Volker}, booktitle = {Zentralblatt für Mathematik und ihre Grenzgebiete [Zbl. 1026.03006]}, title = {{Tomassi, Paul, “Logic after Wittgenstein,” Nordic Journal of Philosophical Logic 6 (2001), 43–70}}, year = {2004}, } @misc{18490, author = {Peckhaus, Volker}, booktitle = {Zentralblatt für Mathematik und ihre Grenzgebiete [Zbl. 1030.03005]}, title = {{Baker, G.P./P.M.S. Hacker, “Functions in Begriffsschrift”, Synthese 135 (2003), 273–297}}, year = {2004}, } @misc{18503, author = {Peckhaus, Volker}, booktitle = {Zentralblatt für Mathematik und ihre Grenzgebiete [Zbl. 1048.00002]}, title = {{Dörfler, Willi, „Über die Fiktionalität mathematischer Objekte“, Mathematische Semesterberichte 48 (2002), 123–138}}, year = {2004}, } @inproceedings{18786, author = {Sohler, Christian and Czumaj, Artur}, booktitle = {Automata, Languages and Programming (ICALP)}, number = {1}, pages = {396--407}, title = {{Sublinear-Time Approximation for Clustering via Random Sampling}}, year = {2004}, } @misc{18798, author = {Peckhaus, Volker}, booktitle = {Mathematical Reviews [MR 2004b:01046; online: MathSciNet 1 986 366]}, title = {{Rowe, David E., “From Königsberg to Göttingen: a Sketch of Hilbert's Early Career”, Math. Intelligencer 25 (2003), 44-50}}, year = {2004}, } @misc{18801, author = {Peckhaus, Volker}, booktitle = {Mathematical Reviews [MR 2004g:00007; online: MathSciNet 1991395]}, title = {{Büttemeyer, Wilhelm (Hg.), Philosophie der Mathematik, Verlag Karl Alber: Freiburg/München 2003 (Alber-Texte Philosophie; 16)}}, year = {2004}, } @inbook{19347, author = {Eke, Norbert Otto}, booktitle = {Mahagonny.com. The Brecht Yearbook 29}, pages = {379--393}, title = {{Götter in der Stadt oder: „Wo Aas ist, sammeln sich die Geier!“ Stadtuntergänge bei Brecht und Trolle}}, volume = {29}, year = {2004}, } @inproceedings{19924, abstract = {Juli 2004}, author = {Büker, Petra}, title = {{Kompetenzprofil Grundschullehrerin: Workshop im Rahmen des Berufsorientierungstages für BA/MA Studierende an der Universität Bielefeld}}, year = {2004}, } @techreport{20933, abstract = {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.}, author = {Niere, Jörrg and Meyer, Matthias and Wendehals, Lothar}, title = {{User-driven adaption in rule-based pattern recognition}}, year = {2004}, } @inproceedings{21164, author = {Meschut, Gerson}, location = {Frankfurt}, title = {{Forschungsbedarf in der Klebtechnik aus Sicht der Automobilindustrie}}, year = {2004}, } @inproceedings{21169, author = {Hahn, O. and Schumann, S. and Meschut, Gerson and Fuhrmann, T.}, location = {Beijing, China}, title = {{Material-Secific joining techniques for magnesium body structures}}, year = {2004}, } @article{23336, author = {Trächtler, Ansgar}, journal = {2. VDI/VDE-Fachtagung zur Steuerung und Regelung von Fahrzeugen und Motoren AUTOREG}, pages = {463--473,}, title = {{Integrierte Fahrdynamikregelung mit ESP, aktiver Lenkung und aktivem Fahrwerk}}, year = {2004}, } @article{23514, author = {Thränhardt, A. and Becker, S. and Schlichenmaier, C. and Kuznetsova, I. and Meier, Torsten and Koch, S. W. and Hader, J. and Moloney, J. V. and Chow, W. W.}, issn = {0003-6951}, journal = {Applied Physics Letters}, number = {23}, pages = {5526--5528}, title = {{Nonequilibrium gain in optically pumped GaInNAs laser structures}}, doi = {10.1063/1.1831570}, volume = {85}, year = {2004}, }