Zobrazeno 1 - 10
of 1 792
pro vyhledávání: '"A, Ponomaryov"'
Autor:
Zinchenko, Sergey, Ponomaryov, Denis
View materialization, index selection, and plan caching are well-known techniques for optimization of query processing in database systems. The essence of these tasks is to select and save a subset of the most useful candidates (views/indexes/plans)
Externí odkaz:
http://arxiv.org/abs/2412.11828
Autor:
Wang, Zhe, Halati, Catalin-Mihai, Bernier, Jean-Sébastien, Ponomaryov, Alexey, Gorbunov, Denis I., Niesen, Sandra, Breunig, Oliver, Klopf, J. Michael, Zvyagin, Sergei, Lorenz, Thomas, Loidl, Alois, Kollath, Corinna
Publikováno v:
Nature 631, 760 - 764 (2024)
Stable composite objects, such as hadrons, nuclei, atoms, molecules and superconducting pairs, formed by attractive forces are ubiquitous in nature. By contrast, composite objects stabilized by means of repulsive forces were long thought to be theore
Externí odkaz:
http://arxiv.org/abs/2412.06350
We address the problem of learning-augmented online caching in the scenario when each request is accompanied by a prediction of the next occurrence of the requested page. We improve currently known bounds on the competitive ratio of the BlindOracle a
Externí odkaz:
http://arxiv.org/abs/2410.01760
Autor:
Prajapati, Gulloo Lal, Ray, Sujay, Ilyakov, Igor, Ponomaryov, Alexey N., Arshad, Atiqa, de Oliveira, Thales V. A. G., Dubey, Gaurav, Rana, Dhanvir Singh, Deinert, Jan-Christoph, Werner, Philipp, Kovalev, Sergey
We demonstrate terahertz (THz) harmonic generation across the Mott insulator-metal transition in rare-earth nickelates (RNiO$_3$, R = rare-earth atom). The THz harmonic generation is observed in all the three different phases with distinct behaviors:
Externí odkaz:
http://arxiv.org/abs/2410.01424
The principal component of conventional database query optimizers is a cost model that is used to estimate expected performance of query plans. The accuracy of the cost model has direct impact on the optimality of execution plans selected by the opti
Externí odkaz:
http://arxiv.org/abs/2409.17136
Autor:
Priessnitz, T., Feng, L., de Oliveira, T. V. A. G., Baker, G., Ilyakov, I., Ponomaryov, A., Arshad, A., Prajapati, G. L., Deinert, J. -C., Kovalev, S., Keimer, B., Kaiser, S.
Terahertz high harmonic generation (THz HHG) is a common property of nonlinear systems. Recently it has been used to investigate fundamental principles that govern transport and nonlinear dynamics in novel quantum materials like graphene, Dirac semim
Externí odkaz:
http://arxiv.org/abs/2409.07872
Autor:
Salikhov, Ruslan, Ilyakov, Igor, Reinold, Anneke, Deinert, Jan-Christoph, de Oliveira, Thales, Ponomaryov, Alexey, Prajapati, Gulloo Lal, Pilch, Patrick, Ghalgaoui, Ahmed, Koch, Max, Fassbender, Jürgen, Lindner, Jürgen, Wang, Zhe, Kovalev, Sergey
The ultrafast control of magnetisation states in magnetically ordered systems is a key technological challenge for developing memory devices operable at picosecond timescales or terahertz (THz) frequencies. Despite significant efforts in ultrafast ma
Externí odkaz:
http://arxiv.org/abs/2408.16808
Autor:
Demin, Alexander, Dorn, Yuriy, Katrutsa, Aleksandr, Kazantsev, Daniil, Latypov, Ilgam, Maximlyuk, Yulia, Ponomaryov, Denis
Optimal page replacement is an important problem in efficient buffer management. The range of replacement strategies known in the literature varies from simple but efficient FIFO-based algorithms to more accurate but potentially costly methods tailor
Externí odkaz:
http://arxiv.org/abs/2405.00154
Publikováno v:
Advances in Space Research 74 (2024) 4276-4289
Current generation of ground based gamma-ray telescopes observed dozens of sources of photons above 100 TeV. Supernova remnants, pulsar wind nebulae, young stellar clusters and superbubbles are considered as possible sites of PeV-regime particles pro
Externí odkaz:
http://arxiv.org/abs/2401.06271
Autor:
Salikhov, Ruslan, Lysne, Markus, Werner, Philipp, Ilyakov, Igor, Schüler, Michael, de Oliveira, Thales V. A. G., Ponomaryov, Alexey, Arshad, Atiqa, Prajapati, Gulloo Lal, Deinert, Jan-Christoph, Makushko, Pavlo, Makarov, Denys, Cowan, Thomas, Fassbender, Jürgen, Lindner, Jürgen, Lindner, Aleksandra, Ortix, Carmine, Kovalev, Sergey
The interplay of electric charge, spin, and orbital polarizations, coherently driven by picosecond long oscillations of light fields in spin-orbit coupled systems, is the foundation of emerging terahertz spintronics and orbitronics. The essential rul
Externí odkaz:
http://arxiv.org/abs/2311.13272