Zobrazeno 1 - 10
of 1 546
pro vyhledávání: '"A. Sakowski"'
Regardless of the selected asset class and the level of model complexity (Transformer versus LSTM versus Perceptron/RNN), the GMADL loss function produces superior results than standard MSE-type loss functions and has better numerical properties in t
Externí odkaz:
http://arxiv.org/abs/2412.18405
Autor:
Strak, Pawel, Kempisty, Pawel, Sakowski, Konrad, Piechota, Jacek, Grzegory, Izabella, Monroy, Eva, Kaminska, Agata, Krukowski, Stanislaw
Fundamental properties of spontaneous and piezo polarization are reformulated and critically reviewed. It was demonstrated that Landau definition of polarization as a dipole density could be used to the infinite systems. The difference between the bu
Externí odkaz:
http://arxiv.org/abs/2407.01134
Autor:
Kawka, Karol, Kempisty, Pawel, Sakowski, Konrad, Krukowski, Stanislaw, Bockowski, Michal, Bowler, David, Kusaba, Akira
Publikováno v:
J. Appl. Phys. 135, 225302 (2024)
On semiconductor growth surfaces, surface reconstructions appear. Estimation of the reconstructed structures is essential for understanding and controlling growth phenomena. In this study, the stability of a mixture of two different surface reconstru
Externí odkaz:
http://arxiv.org/abs/2402.06140
Autor:
Sakowski, Konrad, Strak, Pawel, Kempisty, Pawel, Piechota, Jacek, Grzegory, Izabella, Perlin, Piotr, Monroy, Eva, Kaminska, Agata, Krukowski, Stanislaw
Defect-mediated nonradiative recombination, known as Shockley-Read-Hall (SRH) recombination is reformulated. The introduced model considers Coulomb attraction between charged deep defect and the approaching free carrier, showing that this effect may
Externí odkaz:
http://arxiv.org/abs/2310.11823
This paper proposes a novel approach to hedging portfolios of risky assets when financial markets are affected by financial turmoils. We introduce a completely novel approach to diversification activity not on the level of single assets but on the le
Externí odkaz:
http://arxiv.org/abs/2309.15640
This paper investigates the issue of an adequate loss function in the optimization of machine learning models used in the forecasting of financial time series for the purpose of algorithmic investment strategies (AIS) construction. We propose the Mea
Externí odkaz:
http://arxiv.org/abs/2309.10546
We propose a new measure of systemic risk to analyze the impact of the major financial market turmoils in the stock markets from 2000 to 2023 in the USA, Europe, Brazil, and Japan. Our Implied Volatility Realized Volatility Systemic Risk Indicator (I
Externí odkaz:
http://arxiv.org/abs/2307.05719
Autor:
Yue Zhao, Xiayan Li, Kai Wang, Gayatri Iyer, Stacey A. Sakowski, Lili Zhao, Samuel Teener, Kelly M. Bakulski, John F. Dou, Bryan J. Traynor, Alla Karnovsky, Stuart A. Batterman, Eva L. Feldman, Maureen A. Sartor, Stephen A. Goutman
Publikováno v:
EBioMedicine, Vol 109, Iss , Pp 105383- (2024)
Summary: Background: Amyotrophic lateral sclerosis (ALS) is linked to ageing and genetic and environmental risk factors, yet underlying mechanisms are incompletely understood. We aimed to evaluate epigenetic age acceleration (EAA), i.e., DNA methylat
Externí odkaz:
https://doaj.org/article/92ff37f3959d477f9169be8c420e4624
Autor:
Ah-Reum Jeong, Aaron H. Trando, Sean D. Thomas, Paul Riviere, Patrick J. Sakowski, Ethan S. Sokol, Aaron M. Goodman, Razelle Kurzrock
Publikováno v:
Therapeutic Advances in Medical Oncology, Vol 16 (2024)
Background: The prognostic implications of tumor mutational burden (TMB) and programmed death ligand 1 (PD-L1) expression are poorly studied in hematologic malignancies. Objectives: This study aimed to better understand the characteristics and progno
Externí odkaz:
https://doaj.org/article/639140db54d34516b349289148fbef4b
Antibiotic resistant bacteria are a serious threat to public health system. In order to be able to model the spread of this pathogens within healthcare system network, it is necessary to obtain information on patient movements and the structure of th
Externí odkaz:
http://arxiv.org/abs/2206.07380