BibSonomy publications for /author/LorenzTue Feb 07 00:00:00 CET 2012Random Struct. Algorithms2150-181Phase transitions for random walk asymptotics on free products of groups.402012dblp Tue Feb 07 00:00:00 CET 2012ISCASconf/iscas/2006A 1.8V p(seudo)SRAM using standard 140nm DRAM technology with self adapting clocked standby operation.2006dblp Mon Feb 06 00:00:00 CET 2012Multiscale Modeling & Simulation41528-1548Morozov's Principle for the Augmented Lagrangian Method Applied to Linear Inverse Problems.92011dblp Fri Feb 03 11:48:58 CET 2012Zeitschrift für die Neutestamentliche Wissenschaft und Kunde der Älteren Kirche109--128Die Eustathius von Antiochien zugeschriebene Schrift gegen Photin711980Eustathios Photin Wed Feb 01 00:00:00 CET 2012CoRRAn improved formalism for the Grover search algorithmabs/1201.17072012dblp Tue Jan 31 00:00:00 CET 2012J. Artif. Intell. Res. (JAIR)1-42Learning and Reasoning with Action-Related Places for Robust Mobile Manipulation.432012dblp Fri Jan 27 00:00:00 CET 2012e-Science Workshopsconf/eScience/2011w89-96Towards Distributed Multiscale Simulation of Biological Processes.2011dblp Fri Jan 27 00:00:00 CET 2012e-Science Workshopsconf/eScience/2011w97-104A Principled Approach to Distributed Multiscale Computing, from Formalization to Execution.2011dblp Fri Jan 27 00:00:00 CET 2012CloudComconf/cloudcom/2011357-366A Cloud Environment for Data-intensive Storage Services.2011dblp Wed Jan 25 00:00:00 CET 2012J. Cryptology2349-382The Extended k-tree Algorithm.252012dblp Wed Jan 25 00:00:00 CET 2012MUMconf/mum/201015The ambient media player: a media application remotely operated by the use of mobile devices and gestures.2010dblp Tue Jan 24 10:21:44 CET 2012Berlin / HeidelbergProceedings of the 9th International Semantic Web Conference (ISWC2010)Lecture Notes in Computer ScienceORE - A Tool for Repairing and Enriching Knowledge Bases20102010 buehmann dllearner event_iswc group_aksw lehmann lod2page mole ontowiki_eu peer-reviewed Tue Jan 24 10:21:43 CET 2012Journal of Web Semantics71 - 81Class expression learning for ontology engineering920112011 auer buehmann group_aksw lehmann lod2page peer-reviewed seebiproject_OntoWiki tramp Tue Jan 24 10:21:43 CET 2012Proceedings of ESWC 2011AutoSPARQL: Let Users Query Your Knowledge Base20112011 buehmann dllearner event_eswc group_aksw lehmann lod2page mole peer-reviewed Mon Jan 23 16:34:16 CET 2012Düsseldorf2. DGI-Konferenz und 64. Jahrestagung der DGI: "Social Media und Web Science Das Web als Lebensraum"Tagungsband (Preprint)marTowards a Pathology of Social Media20122012 dgi dgi2012 pathologies socialMedia socialweb The full transformational effects of Social Media have yet to be understood. Alongside its heavily discussed benefits, a number of potentially harmful effects have become apparent lately. Phenomena such as still increasing information overload, cyber-bullying, or loss of identity have been described in recent research literature from various domains. By means of a literature review our paper aims at reviewing, cataloguing and classifying these psychological and social disorders that have been reported to be related to Social Media engagement. We distinguish between active participation in and mere exposure to Social Media. Using a psychopathological classification scheme, we structure the identified symptoms and syndromes, providing a common language and taxonomy with which the identified disorders can be described and classified accurately. Thus, we are laying out a foundation necessary for the research into and the understanding of the aetiology and eventually the means for the prevention of the negative effects of Social Media usage within individuals in information societies.Sun Jan 22 00:00:00 CET 2012BIBMconf/bibm/201169-74Phylogenomic Analysis of the Phenylalanine Ammonia Lyase Gene Family in Loblolly Pine (Pinus Taeda L.).2011dblp Wed Jan 11 00:00:00 CET 2012Humanoidsconf/humanoids/2011529-536Robotic roommates making pancakes.2011dblp Fri Jan 06 00:00:00 CET 2012DATEconf/date/1998510-517A Modeling Approach to Include Mechanical Microsystem Components into the System Simulation.1998dblp Thu Jan 05 04:25:22 CET 2012cite arxiv:1201.0714 Comment: 49 pages, 12 figuresExcitation spectra of fragmented condensates by linear response: General theory and application to a condensate in a double-well potential2012fragmented Linear response of simple (i.e., condensed) Bose-Einstein condensates is known to lead to the Bogoliubov- de Gennes equations. Here, we derive linear response for fragmented Bose-Einstein condensates, i.e., for the case where the many-body wave function is not a product of one, but of several single-particle states (orbitals). This gives one access to excitation spectra and response amplitudes of systems beyond the Gross-Pitaevskii description. Our approach is based on the number-conserving variational time-dependent mean field theory [O. E. Alon, A. I. Streltsov, and L. S. Cederbaum, Phys. Lett. A 362, 453 (2007)], which describes the time evolution of best-mean field states. Correspondingly, we call our linear response theory for fragmented states LR-BMF. In the derivation it follows naturally that excitations are orthogonal to the ground state orbitals. As applications excitation spectra of Bose-Einstein condensates in double-well potentials are calculated. Both symmetric and asymmetric double-wells are studied for several interaction strengths and barrier heights. The cases of condensed and two-fold fragmented ground states are compared. Interestingly, even in such situations where the response frequencies of the two cases are computed to be close to each other, which is the situation for the excitations well below the barrier, striking differences in the density response in momentum space are found. For excitations above the barrier, both the energies and the density response of condensed and fragmented systems are very different. In fragmented systems there is a class of "swapped" excitations where an atom is transferred to the neighboring well. In asymmetric wells, the response of a fragmented system is purely local with different frequencies for the left and right fragments. This finding is in stark contrast to that for condensed systems. Sun Jan 01 00:00:00 CET 2012CoRRX-pire! - A digital expiration date for images in social networksabs/1112.26492011dblp