Zobrazeno 1 - 10
of 142 858
pro vyhledávání: '"Stephan, P"'
Distributed massive MIMO is considered a key advancement for improving the performance of next-generation wireless telecommunication systems. However, its efficacy in scenarios involving user mobility is limited due to channel aging. To address this
Externí odkaz:
http://arxiv.org/abs/2410.11486
Autor:
Klimek, Anton, Heyn, Johannes C. J., Mondal, Debasmita, Schwartz, Sophia, Rädler, Joachim O., Sharma, Prerna, Block, Stephan, Netz, Roland R.
When analyzing the individual positional dynamics of an ensemble of moving objects, the extracted parameters that characterize the motion of individual objects, such as the mean-squared instantaneous velocity or the diffusivity, exhibit a spread that
Externí odkaz:
http://arxiv.org/abs/2410.14561
Autor:
Pandey, Kushagra, Pathak, Jaideep, Xu, Yilun, Mandt, Stephan, Pritchard, Michael, Vahdat, Arash, Mardani, Morteza
Diffusion models achieve state-of-the-art generation quality across many applications, but their ability to capture rare or extreme events in heavy-tailed distributions remains unclear. In this work, we show that traditional diffusion and flow-matchi
Externí odkaz:
http://arxiv.org/abs/2410.14171
Autor:
Bauhofer, Maximilian, Henninger, Marcus, Wild, Thorsten, Brink, Stephan ten, Mandelli, Silvio
The distributed nature of cellular networks is one of the main enablers for integrated sensing and communication (ISAC). For target positioning and tracking, making use of bistatic measurements is non-trivial due to their non-linear relationship with
Externí odkaz:
http://arxiv.org/abs/2410.11681
Autor:
Silva, Tiago Elias Abi-Ramia, Kohler, Stephan, Bartzsch, Nicolas, Beuschlein, Felix, Guentner, Andreas T.
Dermal interstitial fluid (ISF) is a rich source of biomarkers (e.g., glucose) that can be used for continuous health monitoring with wearable sensors. Hollow microneedle devices are a promising solution to extract ISF on demand by penetrating the sk
Externí odkaz:
http://arxiv.org/abs/2410.11631
Autor:
Sun, Haomin, Ball, Justin, Brunner, Stephan, Field, Anthony, Patel, Bhavin, Kennedy, Daniel, Roach, Colin, Cruz-Zabala, Diego Jose, Del Pozo, Fernando Puentes, Viezzer, Eleonora, Munoz, Manuel Garcia
Based on the analysis of a large number of high-fidelity nonlinear gyrokinetic simulations, we propose a novel strategy to improve confinement in tokamak plasmas by combining up-down asymmetric flux surface shaping with the Low Momentum Diffusivity (
Externí odkaz:
http://arxiv.org/abs/2410.10555
Autor:
Scholten, Yan, Günnemann, Stephan
Conformal prediction provides model-agnostic and distribution-free uncertainty quantification through prediction sets that are guaranteed to include the ground truth with any user-specified probability. Yet, conformal prediction is not reliable under
Externí odkaz:
http://arxiv.org/abs/2410.09878
Autor:
Gupta, Kanan, Wojtowytsch, Stephan
While momentum-based optimization algorithms are commonly used in the notoriously non-convex optimization problems of deep learning, their analysis has historically been restricted to the convex and strongly convex setting. In this article, we partia
Externí odkaz:
http://arxiv.org/abs/2410.08395
The accuracy of density functional theory hinges on the approximation of non-local contributions to the exchange-correlation (XC) functional. To date, machine-learned and human-designed approximations suffer from insufficient accuracy, limited scalab
Externí odkaz:
http://arxiv.org/abs/2410.07972
Autor:
Tzenov, Stephan I., Volodin, Anton A.
The longitudinal dynamics of an intense high energy beam moving in a resonator cavity has been studied in some detail. Through the method of separation of variables and its obvious straightforward generalization, a solution of the Vlasov equation for
Externí odkaz:
http://arxiv.org/abs/2410.06660