@inproceedings{3751, author = {{Ajjour, Yamen and Chen, Wei-Fan and Kiesel, Johannes and Wachsmuth, Henning and Stein, Benno}}, booktitle = {{Proceedings of the 4th Workshop on Argument Mining}}, pages = {{118--128}}, title = {{{Unit Segmentation of Argumentative Texts}}}, year = {{2017}}, } @inproceedings{3803, author = {{Al Khatib, Khalid and Wachsmuth, Henning and Hagen, Matthias and Stein, Benno}}, booktitle = {{Proceedings of the 2017 Conference on Empirical Methods in Natural Language Processing}}, pages = {{1362--1368}}, title = {{{Patterns of Argumentation Strategies across Topics}}}, year = {{2017}}, } @inproceedings{3809, author = {{Kiesel, Johannes and Wachsmuth, Henning and Al Khatib, Khalid and Stein, Benno}}, booktitle = {{Proceedings of the Software Demonstrations of the 15th Conference of the European Chapter of the Association for Computational Linguistics}}, pages = {{13--16}}, title = {{{WAT-SL: A Customizable Web Annotation Tool for Segment Labeling}}}, year = {{2017}}, } @inproceedings{3817, author = {{Wachsmuth, Henning and Stein, Benno and Ajjour, Yamen}}, booktitle = {{Proceedings of the 15th Conference of the European Chapter of the Association for Computational Linguistics: Volume 1, Long Papers}}, pages = {{1117--1127}}, title = {{{"Page Rank'' for Argument Relevance}}}, year = {{2017}}, } @inproceedings{3819, author = {{Wachsmuth, Henning and Potthast, Martin and Al-Khatib, Khalid and Ajjour, Yamen and Puschmann, Jana and Qu, Jiani and Dorsch, Jonas and Morari, Viorel and Bevendorff, Janek and Stein, Benno}}, booktitle = {{Proceedings of the 4th Workshop on Argument Mining}}, pages = {{49--59}}, title = {{{Building an Argument Search Engine for the Web}}}, year = {{2017}}, } @inproceedings{3820, author = {{Wachsmuth, Henning and Da San Martino, Giovanni and Kiesel, Dora and Stein, Benno}}, booktitle = {{Proceedings of the 2017 Conference on Empirical Methods in Natural Language Processing}}, pages = {{2369--2379}}, title = {{{The Impact of Modeling Overall Argumentation with Tree Kernels}}}, year = {{2017}}, } @article{3828, abstract = {{The 3D implementation of a hybrid analytical/numerical variant of the coupled-mode theory is discussed. Eigenmodes of the constituting dielectric channels are computed numerically. The frequency-domain coupled-mode models then combine these into fully vectorial approximations for the optical electromagnetic fields of the composite structure. Following a discretization of amplitude functions by 1D finite elements, pro- cedures from the realm of finite-element numerics are applied to establish systems of linear equations for the then- discrete modal amplitudes. Examples substantiate the functioning of the technique and allow for some numerical assessment. The full 3D simulations are highly efficient in memory consumption, moderately demanding in com- putational time, and, in regimes of low radiative losses, sufficiently accurate for practical design. Our results include the perturbation of guided modes by changes of the refractive indices, the interaction of waves in parallel, horizontally or vertically coupled straight waveguides, and a series of crossings of potentially overlapping channels with fairly arbitrary relative positions and orientations.}}, author = {{Hammer, Manfred and Alhaddad, Samer and Förstner, Jens}}, issn = {{0740-3224}}, journal = {{Journal of the Optical Society of America B}}, keywords = {{tet_topic_waveguide, tet_topic_numerics}}, number = {{3}}, pages = {{613--624}}, publisher = {{The Optical Society}}, title = {{{Hybrid coupled-mode modeling in 3D: perturbed and coupled channels, and waveguide crossings}}}, doi = {{10.1364/josab.34.000613}}, volume = {{34}}, year = {{2017}}, } @article{3830, abstract = {{The modal properties of curved dielectric slab waveguides are investigated. We consider quasi-confined, attenuated modes that propagate at oblique angles with respect to the axis through the center of curvature. Our analytical model describes the transition from scalar 2-D TE/TM bend modes to lossless spiral waves at near-axis propagation angles, with a continuum of vectorial attenuated spiral modes in between. Modal solutions are characterized in terms of directional wavenumbers and attenuation constants. Examples for vectorial mode profiles illustrate the effects of oblique wave propagation along the curved slab segments. For the regime of lossless spiral waves, the relation with the guided modes of corresponding dielectric tubes is demonstrated.}}, author = {{Ebers, Lena and Hammer, Manfred and Förstner, Jens}}, issn = {{0306-8919}}, journal = {{Optical and Quantum Electronics}}, keywords = {{tet_topic_waveguide}}, number = {{4}}, pages = {{49:176}}, publisher = {{Springer Nature}}, title = {{{Spiral modes supported by circular dielectric tubes and tube segments}}}, doi = {{10.1007/s11082-017-1011-x}}, volume = {{49}}, year = {{2017}}, } @article{3832, abstract = {{Controlling light emission out of subwavelength nanoslit/aperture structures is of great important for highly integrated photonic circuits. Here we propose a new method to achieve direction-tunable emission based on a compact metallic microcavity with double nanoslit. Our method combines the principles of Young’s interference and surface plasmon polaritons interference. We show that the direction of the far-field beam can be controlled over a wide range of angles by manipulating the frequency and relative phase of light arriving at the two slits, which holds promise for applications in the ultracompact optoelectronic devices.}}, author = {{Song, Xiaohong and Wang, Nini and Yan, Ming and Lin, Cheng and Förstner, Jens and Yang, Weifeng}}, issn = {{1094-4087}}, journal = {{Optics Express}}, keywords = {{tet_topic_plasmonics}}, number = {{12}}, pages = {{13207--13214}}, publisher = {{The Optical Society}}, title = {{{Direction-tunable enhanced emission from a subwavelength metallic double-nanoslit structure}}}, doi = {{10.1364/oe.25.013207}}, volume = {{25}}, year = {{2017}}, } @inbook{3836, abstract = {{We apply the Discontinuous Galerkin Time Domain (DGTD) method for numerical simulations of the second harmonic generation from various metallic nanostructures. A Maxwell–Vlasov hydrodynamic model is used to describe the nonlinear effects in the motion of the excited free electrons in a metal. The results are compared with the corresponding experimental measurements for split-ring resonators and plasmonic gap antennas.}}, author = {{Grynko, Yevgen and Förstner, Jens}}, booktitle = {{Recent Trends in Computational Photonics}}, editor = {{Agrawal, Arti}}, isbn = {{9783319554372}}, issn = {{0342-4111}}, keywords = {{tet_topic_numerics, tet_topic_shg, tet_topic_meta}}, pages = {{261--284}}, publisher = {{Springer International Publishing}}, title = {{{Simulation of Second Harmonic Generation from Photonic Nanostructures Using the Discontinuous Galerkin Time Domain Method}}}, doi = {{10.1007/978-3-319-55438-9_9}}, year = {{2017}}, } @book{3837, editor = {{Seng, Eva-Maria and Keil, Reinhard and Oevel, Gudrun}}, isbn = {{9783110364842}}, pages = {{67--76}}, publisher = {{De Gruyter}}, title = {{{Unterstützung des Forschungsprozesses aus infrastruktureller Sicht}}}, doi = {{10.1515/9783110364842-007}}, year = {{2017}}, } @article{3872, abstract = {{This paper considers the problem of how to efficiently share a wireless medium which is subject to harsh external interference or even jamming. So far, this problem is understood only in simplistic single-hop or unit disk graph models. We in this paper initiate the study of MAC protocols for the SINR interference model (a.k.a. physical model). This paper makes two contributions. First, we introduce a new adversarial SINR model which captures a wide range of interference phenomena. Concretely, we consider a powerful, adaptive adversary which can jam nodes at arbitrary times and which is only limited by some energy budget. Our second contribution is a distributed MAC protocol called Sade which provably achieves a constant competitive throughput in this environment: we show that, with high probability, the protocol ensures that a constant fraction of the non-blocked time periods is used for successful transmissions.}}, author = {{Ogierman, Adrian and Richa, Andrea and Scheideler, Christian and Schmid, Stefan and Zhang, Jin}}, issn = {{0178-2770}}, journal = {{Distributed Computing}}, number = {{3}}, pages = {{241--254}}, publisher = {{Springer Nature}}, title = {{{Sade: competitive MAC under adversarial SINR}}}, doi = {{10.1007/s00446-017-0307-1}}, volume = {{31}}, year = {{2017}}, } @inproceedings{3881, author = {{Wachsmuth, Henning and Naderi, Nona and Hou, Yufang and Bilu, Yonatan and Prabhakaran, Vinodkumar and Thijm, Tim Alberdingk and Hirst, Graeme and Stein, Benno}}, booktitle = {{Proceedings of the 15th Conference of the European Chapter of the Association for Computational Linguistics: Volume 1, Long Papers}}, pages = {{176--187}}, title = {{{Computational Argumentation Quality Assessment in Natural Language}}}, year = {{2017}}, } @article{3882, author = {{Wachsmuth, Henning and Stein, Benno}}, issn = {{1533-5399}}, journal = {{Special Section of the ACM Transactions on Internet Technology: Argumentation in Social Media}}, number = {{3}}, pages = {{1--24}}, title = {{{A Universal Model for Discourse-Level Argumentation Analysis}}}, year = {{2017}}, } @inproceedings{3883, author = {{Wachsmuth, Henning and Naderi, Nona and Habernal, Ivan and Hou, Yufang and Hirst, Graeme and Gurevych, Iryna and Stein, Benno}}, booktitle = {{Proceedings of the 55th Annual Meeting of the Association for Computational Linguistics (Volume 2: Short Papers)}}, pages = {{250--255}}, title = {{{Argumentation Quality Assessment: Theory vs. Practice}}}, doi = {{10.18653/v1/P17-2039}}, year = {{2017}}, } @inproceedings{3904, author = {{Hagen, Matthias and Kiesel, Johannes and Alshomary, Milad and Stein, Benno}}, booktitle = {{Working Notes of CLEF 2017 - Conference and Labs of the Evaluation Forum}}, title = {{{Webis at the CLEF 2017 Dynamic Search Lab}}}, year = {{2017}}, } @misc{28912, booktitle = {{Lernende Schule}}, editor = {{Eickelmann, Birgit and Klinger, Udo}}, number = {{79}}, title = {{{Digitalisierung in der Schule}}}, volume = {{20}}, year = {{2017}}, } @phdthesis{2908, author = {{Bujna, Kathrin}}, publisher = {{Universität Paderborn}}, title = {{{Soft Clustering Algorithms - Theoretical and Practical Improvements}}}, doi = {{10.17619/UNIPB/1-226}}, year = {{2017}}, } @inproceedings{2967, author = {{Blömer, Johannes and Liske, Gennadij}}, booktitle = {{Proceedings of the International Conference of Mathematical Aspects of Computer and Information Sciences (MACIS)}}, isbn = {{9783319724522}}, issn = {{0302-9743}}, pages = {{438--453}}, publisher = {{Springer International Publishing}}, title = {{{Subtleties in Security Definitions for Predicate Encryption with Public Index}}}, doi = {{10.1007/978-3-319-72453-9_35}}, volume = {{10693}}, year = {{2017}}, } @article{3070, author = {{Gries, Thomas and Fritz, Marlon and Feng, Yuanhua}}, journal = {{Review of Economics}}, number = {{2}}, pages = {{153--166}}, title = {{{Slow Booms and Deep Busts: 160 Years of Business Cycles in Spain}}}, doi = {{10.1515/roe-2017-0008}}, volume = {{68 }}, year = {{2017}}, }