@unpublished{53282, abstract = {{Modern wireless communication systems are expected to provide improved latency and reliability. To meet these expectations, a short packet length is needed, which makes the first-order Shannon rate an inaccurate performance metric for such communication systems. A more accurate approximation of the achievable rates of finite-block-length (FBL) coding regimes is known as the normal approximation (NA). It is therefore of substantial interest to study the optimization of the FBL rate in multi-user multiple-input multiple-output (MIMO) systems, in which each user may transmit and/or receive multiple data streams. Hence, we formulate a general optimization problem for improving the spectral and energy efficiency of multi-user MIMO-aided ultra-reliable low-latency communication (URLLC) systems, which are assisted by reconfigurable intelligent surfaces (RISs). We show that a RIS is capable of substantially improving the performance of multi-user MIMO-aided URLLC systems. Moreover, the benefits of RIS increase as the packet length and/or the tolerable bit error rate are reduced. This reveals that RISs can be even more beneficial in URLLC systems for improving the FBL rates than in conventional systems approaching Shannon rates.}}, author = {{Soleymani, Mohammad and Santamaria, Ignacio and Jorswieck, Eduard and Schober, Robert and Hanzo, Lajos}}, booktitle = {{arXiv:2402.16434}}, title = {{{Optimization of the Downlink Spectral- and Energy-Efficiency of RIS-aided Multi-user URLLC MIMO Systems}}}, year = {{2024}}, } @inproceedings{53259, author = {{Soleymani, Mohammad and Santamaria, Ignacio and Sezgin, Aydin and Jorswieck, Eduard}}, booktitle = {{2023 IEEE 9th International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP)}}, publisher = {{IEEE}}, title = {{{Maximization of Minimum Rate in MIMO OFDM RIS-Assisted Broadcast Channels}}}, doi = {{10.1109/camsap58249.2023.10403459}}, year = {{2024}}, } @inproceedings{53258, author = {{Soleymani, Mohammad and Santamaria, Ignacio and Jorswieck, Eduard}}, booktitle = {{GLOBECOM 2023 - 2023 IEEE Global Communications Conference}}, publisher = {{IEEE}}, title = {{{NOMA-Based Improper Signaling for MIMO STAR-RIS-Assisted Broadcast Channels with Hardware Impairments}}}, doi = {{10.1109/globecom54140.2023.10437458}}, year = {{2024}}, } @inproceedings{53304, author = {{Kuschel, Maurice and Hasija, Tanuj and Marrinan, Timothy}}, booktitle = {{ICASSP 2024 - 2024 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)}}, publisher = {{IEEE}}, title = {{{Rademacher Complexity Regularization for Correlation-Based Multiview Representation Learning}}}, doi = {{10.1109/icassp48485.2024.10446173}}, year = {{2024}}, } @misc{53374, author = {{De Groote, Carsten}}, title = {{{A Dispersion Algorithm for Robot Swarms Inside Polygonal Boundary Shapes}}}, year = {{2024}}, } @misc{53373, author = {{Doddegowda, Rajesh}}, title = {{{Optimal Drone Strategies For Packet Delivery}}}, year = {{2024}}, } @misc{53372, author = {{Thakur, Heena}}, title = {{{Evaluating the Implications}}}, year = {{2024}}, } @inproceedings{53394, author = {{Kullmer, Gunter and Weiß, Deborah and Schramm, Britta}}, location = {{Kassel}}, publisher = {{Deutscher Verband für Materialforschung und –prüfung e.V.}}, title = {{{Weiterentwicklung des Exponentialansatzes zur Beschreibung von Rissfortschrittskurven}}}, doi = {{10.48447/BR-2024-369}}, year = {{2024}}, } @article{52096, author = {{Kamp, Hermann}}, journal = {{Zeitschrift des Aachener Geschichtsvereins }}, pages = {{137--167}}, publisher = {{VERLAGSDRUCKEREI SCHMIDT GMBH}}, title = {{{Zwischen Beutesuche und politischen Ambitionen. Die Normannen an Rhein und Maas zwischen 880 und 892}}}, volume = {{123/124, 2021-2022}}, year = {{2024}}, } @article{38031, abstract = {{We consider the data-driven approximation of the Koopman operator for stochastic differential equations on reproducing kernel Hilbert spaces (RKHS). Our focus is on the estimation error if the data are collected from long-term ergodic simulations. We derive both an exact expression for the variance of the kernel cross-covariance operator, measured in the Hilbert-Schmidt norm, and probabilistic bounds for the finite-data estimation error. Moreover, we derive a bound on the prediction error of observables in the RKHS using a finite Mercer series expansion. Further, assuming Koopman-invariance of the RKHS, we provide bounds on the full approximation error. Numerical experiments using the Ornstein-Uhlenbeck process illustrate our results.}}, author = {{Philipp, Friedrich and Schaller, Manuel and Worthmann, Karl and Peitz, Sebastian and Nüske, Feliks}}, journal = {{Applied and Computational Harmonic Analysis }}, publisher = {{Springer }}, title = {{{Error bounds for kernel-based approximations of the Koopman operator}}}, doi = {{10.1016/j.acha.2024.101657}}, volume = {{71}}, year = {{2024}}, } @inbook{53473, author = {{Elit, Stefan}}, booktitle = {{‚Topographisches‘ Schreiben: Lea Streisand, Paderborn, Wintersemester 2022/2023}}, editor = {{Elit, Stefan and Eke, Norbert Otto}}, isbn = {{978-3-8498-1957-6}}, pages = {{137--154}}, publisher = {{Aisthesis}}, title = {{{‚Schelmische‘ Post-DDR-Romane: Ingo Schulzes „Peter Holtz“ und Lea Streisands „Hufeland, Ecke Bötzow“}}}, volume = {{41.}}, year = {{2024}}, } @article{52723, abstract = {{Miller's rule is an empirical relation between the nonlinear and linear optical coefficients that applies to a large class of materials but has only been rigorously derived for the classical Lorentz model with a weak anharmonic perturbation. In this work, we extend the proof and present a detailed derivation of Miller's rule for an equivalent quantum-mechanical anharmonic oscillator. For this purpose, the classical concept of velocity-dependent damping inherent to the Lorentz model is replaced by an adiabatic switch-on of the external electric field, which allows a unified treatment of the classical and quantum-mechanical systems using identical potentials and fields. Although the dynamics of the resulting charge oscillations, and hence the induced polarizations, deviate due to the finite zero-point motion in the quantum-mechanical framework, we find that Miller's rule is nevertheless identical in both cases up to terms of first order in the anharmonicity. With a view to practical applications, especially in the context of ab initio calculations for the optical response where adiabatically switched-on fields are widely assumed, we demonstrate that a correct treatment of finite broadening parameters is essential to avoid spurious errors that may falsely suggest a violation of Miller's rule, and we illustrate this point by means of a numerical example.}}, author = {{Meyer, Maximilian Tim and Schindlmayr, Arno}}, issn = {{1361-6455}}, journal = {{Journal of Physics B: Atomic, Molecular and Optical Physics}}, number = {{9}}, publisher = {{IOP Publishing}}, title = {{{Derivation of Miller's rule for the nonlinear optical susceptibility of a quantum anharmonic oscillator}}}, doi = {{10.1088/1361-6455/ad369c}}, volume = {{57}}, year = {{2024}}, } @article{53474, abstract = {{We present a novel approach to characterize and quantify microheterogeneity and microphase separation in computer simulations of complex liquid mixtures. Our post-processing method is based on local density fluctuations of the different constituents in sampling spheres of varying size. It can be easily applied to both molecular dynamics (MD) and Monte Carlo (MC) simulations, including periodic boundary conditions. Multidimensional correlation of the density distributions yields a clear picture of the domain formation due to the subtle balance of different interactions. We apply our approach to the example of force field molecular dynamics simulations of imidazolium-based ionic liquids with different side chain lengths at different temperatures, namely 1-ethyl-3-methylimidazolium chloride, 1-hexyl-3-methylimidazolium chloride, and 1-decyl-3-methylimidazolium chloride, which are known to form distinct liquid domains. We put the results into the context of existing microheterogeneity analyses and demonstrate the advantages and sensitivity of our novel method. Furthermore, we show how to estimate the configuration entropy from our analysis, and we investigate voids in the system. The analysis has been implemented into our program package TRAVIS and is thus available as free software.}}, author = {{Lass, Michael and Kenter, Tobias and Plessl, Christian and Brehm, Martin}}, issn = {{1099-4300}}, journal = {{Entropy}}, number = {{4}}, publisher = {{MDPI AG}}, title = {{{Characterizing Microheterogeneity in Liquid Mixtures via Local Density Fluctuations}}}, doi = {{10.3390/e26040322}}, volume = {{26}}, year = {{2024}}, } @book{53472, editor = {{Eke, Norbert and Elit, Stefan}}, isbn = {{978-3-8498-1957-6}}, pages = {{178}}, publisher = {{Aisthesis}}, title = {{{'Topographisches‘ Schreiben: Lea Streisand. Paderborn Wintersemester 2022/23}}}, volume = {{41.}}, year = {{2024}}, } @book{53506, author = {{Langer, Svenja}}, isbn = {{978-0-907311-47-8}}, publisher = {{Bolton Print}}, title = {{{Lines in the Sand}}}, year = {{2024}}, } @article{53213, author = {{Amiri, Arman and Tavana, Madjid and Arman, Hosein}}, issn = {{2542-6605}}, journal = {{Internet of Things}}, keywords = {{Management of Technology and Innovation, Artificial Intelligence, Computer Science Applications, Hardware and Architecture, Engineering (miscellaneous), Information Systems, Computer Science (miscellaneous), Software}}, publisher = {{Elsevier BV}}, title = {{{An Integrated Fuzzy Analytic Network Process and Fuzzy Regression Method for Bitcoin Price Prediction}}}, doi = {{10.1016/j.iot.2023.101027}}, volume = {{25}}, year = {{2024}}, } @article{53212, author = {{Mahmoodi, Ehsan and Fathi, Masood and Tavana, Madjid and Ghobakhloo, Morteza and Ng, Amos H.C.}}, issn = {{0278-6125}}, journal = {{Journal of Manufacturing Systems}}, keywords = {{Industrial and Manufacturing Engineering, Hardware and Architecture, Software, Control and Systems Engineering}}, pages = {{287--307}}, publisher = {{Elsevier BV}}, title = {{{Data-driven simulation-based decision support system for resource allocation in industry 4.0 and smart manufacturing}}}, doi = {{10.1016/j.jmsy.2023.11.019}}, volume = {{72}}, year = {{2024}}, } @article{53205, author = {{Tavana, Madjid and Sorooshian, Shahryar}}, issn = {{1568-4946}}, journal = {{Applied Soft Computing}}, keywords = {{Software}}, publisher = {{Elsevier BV}}, title = {{{A systematic review of the soft computing methods shaping the future of the metaverse}}}, doi = {{10.1016/j.asoc.2023.111098}}, volume = {{150}}, year = {{2024}}, } @inbook{53522, author = {{Wortmann, Fabio and Kämmerling, Sina and Hemmrich, Simon and Gradert, Till and Ellermann, Kai}}, booktitle = {{Digitale Plattformen im industriellen Mittelstand. Strategien, Methoden, Umsetzungsbeispiele}}, publisher = {{Springer Berlin Heidelberg}}, title = {{{Einführung}}}, year = {{2024}}, } @inbook{53524, author = {{Hemmrich, Simon and Wortmann, Fabio and Lüttenberg, Hedda and Gradert, Till and Kämmerling, Sina and Meyer, Maurice}}, booktitle = {{Digitale Plattformen im industriellen Mittelstand. Strategien, Methoden, Umsetzungsbeispiele}}, publisher = {{Springer Berlin Heidelberg}}, title = {{{Grundlagen}}}, year = {{2024}}, }