Results 211 to 220 of about 3,671,092 (264)

Reinforcement Learning for Jump‐Diffusions, With Financial Applications

Mathematical Finance, EarlyView.
ABSTRACT We study continuous‐time reinforcement learning (RL) for stochastic control in which system dynamics are governed by jump‐diffusion processes. We formulate an entropy‐regularized exploratory control problem with stochastic policies to capture the exploration–exploitation balance essential for RL.
Xuefeng Gao, Lingfei Li, Xun Yu Zhou
wiley   +1 more source

Readmission and Cost of Parathyroidectomy By Admission Status in Secondary Hyperparathyroidism. [PDF]

Clin J Am Soc Nephrol
Hwang J, Sharpe J, Finn C, Bader A, Keele L, Reddy Y, Fraker D, Wachtel H, Kelz RR.   +8 more
europepmc   +1 more source

On the Exact Limiting Distribution of a Volatility Target Index

Mathematical Finance, EarlyView.
ABSTRACT Assuming a lognormal distribution for the underlying risky asset, we study the limiting distribution of a volatility target index as the rebalancing time step approaches zero. Two limit theorems (a strong law of large numbers and a central limit theorem) are established, and as an application, the exact limiting distribution is derived.
Xuan Liu, Michel Gauthier
wiley   +1 more source

Predicting token prices in the blockchain market using neural networks. [PDF]

Sci Rep
Lu Y, Cheng Z, Zhang Z, Mostafa AM.
europepmc   +1 more source

Governing the Local Digital Transformation: A European Comparative Perspective

Public Administration, EarlyView.
ABSTRACT This study compares governance structures, policy formulation and implementation of administrative digitalization at the local level in three countries with different administrative traditions: France, Germany and the United Kingdom.
Sabine Kuhlmann, Justine Marienfeldt, Frederico Ganz   +2 more
wiley   +1 more source

Investor sentiment and stock portfolio construction: A study based on the black-litterman model. [PDF]

PLoS One
Sun L, Fu B, Liu W.
europepmc   +1 more source

‘Merge my breath with the one of nature’: Qualitative analysis on focus groups exploring how nature exposure could improve positive body image in young women

Psychology and Psychotherapy: Theory, Research and Practice, EarlyView.
Abstract Objectives Nature exposure may support young women in improving their relationship with their body, enhancing positive body image. However, the mechanisms remain still largely underexplored. A few qualitative studies provided valuable insights, but they lacked generalizability to the broader population of young women, since they often relied ...
Paolo Mancin, Sara Iannattone, Fidan Turk, Marta Ghisi, Silvia Cerea   +4 more
wiley   +1 more source

Impact of diabetes mellitus on treatment efficacy in patients with advanced pancreatic cancer: the Italian, multicenter, observational PANCAKE study. [PDF]

ESMO Gastrointest Oncol
Andena P, Tine G, Nichetti F, Pretta A, Bartalini L, Ljevar S, Michelotti A, Salvatore L, Prisciandaro M, Franza A, Grelli G, Ziranu P, Bensi M, Mazzaferro V, Coppa J, Sciortino C, Zapelloni G, Pircher C, Garattini SK, Vivaldi C, Tortora G, Scartozzi M, de Braud F, Pietrantonio F, Miceli R, Niger M.   +25 more
europepmc   +1 more source

Nurse structures effectively improve the performance of restoration plantings: a systematic review

Restoration Ecology, EarlyView.
Abstract Introduction Tree planting for ecosystem restoration often occurs on disturbed, degraded, or former agricultural sites, where seedlings face harsh conditions like sun exposure, drought, wind, frost, and browsing, which can lead to poor performance.
Klaus Kremer, Sarah Holtkamp, Bengt‐Gunnar Jonsson, Jürgen Bauhus   +3 more
wiley   +1 more source

Phase II study of 1st-line durvalumab and platinum-etoposide in advanced large-cell neuroendocrine lung carcinoma (aLCNEC). [PDF]

Cancer Immunol Immunother
Dudnik E, Nechushtan H, Rotem O, Hanovich E, Wollner M, Boikaner T, Fridman N, Ofer J, Ben-David MA, Reinhorn D.   +9 more
europepmc   +1 more source