Results 41 to 50 of about 129,079 (132)
Journal of Applied Clinical Medical Physics, Volume 26, Issue 1, January 2025.Abstract Background The installation and testing of the first Radixact with Synchrony system in Colombia marked a significant milestone in Latin America's medical landscape. There was a need to devise a robust quality assurance protocol to comprehensively evaluate both dose delivery and motion tracking accuracy.
Christian D. Trujillo‐Bastidas +2 more
wiley +1 more source
Pricing Average Options on Commodities [PDF]
This paper proposes a new approximation formula for pricing average options on commodities under a stochastic volatility environment. In particular, it derives an option pricing formula under Heston and an extended -SABR stochastic volatility models ...
Akihiko Takahashi, Kenichiro Shiraya
core +3 more sources
Detecting asset price bubbles using deep learning
Mathematical Finance, Volume 35, Issue 1, Page 74-110, January 2025.Abstract In this paper, we employ deep learning techniques to detect financial asset bubbles by using observed call option prices. The proposed algorithm is widely applicable and model‐independent. We test the accuracy of our methodology in numerical experiments within a wide range of models and apply it to market data of tech stocks in order to assess
Francesca Biagini +3 more
wiley +1 more source
Fast Quantization of Stochastic Volatility Models
, 2017 Recursive Marginal Quantization (RMQ) allows fast approximation of solutions to stochastic differential equations in one-dimension. When applied to two factor models, RMQ is inefficient due to the fact that the optimization problem is usually performed ...
Kienitz, Joerg +3 more
core +1 more source
SOFR term structure dynamics—Discontinuous short rates and stochastic volatility forward rates
Journal of Futures Markets, Volume 44, Issue 6, Page 936-985, June 2024.Abstract The Secured Overnight Funding Rate (SOFR) has become the risk‐free rate benchmark in US dollars, thus term structure models should reflect key features exhibited by SOFR and forward rates implied by SOFR futures. We construct a multifactor, stochastic volatility term structure model which incorporates these features.
Alan Brace, Karol Gellert, Erik Schlögl
wiley +1 more source
Assessing the sensitivity and suitability of a range of detectors for SIMT PSQA
Journal of Applied Clinical Medical Physics, Volume 25, Issue 5, May 2024.Abstract Purpose Single‐isocenter multi‐target intracranial stereotactic radiotherapy (SIMT) is an effective treatment for brain metastases with complex treatment plans and delivery optimization necessitating rigorous quality assurance. This work aims to assess five methods for quality assurance of SIMT treatment plans in terms of their suitability and
Leon Dunn +4 more
wiley +1 more source
Journal of Applied Clinical Medical Physics, Volume 25, Issue 2, February 2024.Abstract Purpose To assess the feasibility of using the diaphragm as a surrogate for liver targets during MDTT. Methods Diaphragm as surrogate for markers: a dome‐shaped phantom with implanted markers was fabricated and underwent dual‐orthogonal fluoroscopy sequences on the Vero4DRT linac. Ten patients participated in an IRB‐approved, feasibility study
Maryam Rostamzadeh +9 more
wiley +1 more source
, 2021 Research and Practice in Thrombosis and Haemostasis, Volume 5, Issue S2, October 2021.
wiley +1 more source
Term structure modeling with overnight rates beyond stochastic continuity
Mathematical Finance, Volume 34, Issue 1, Page 151-189, January 2024.Abstract Overnight rates, such as the Secured Overnight Financing Rate (SOFR) in the United States, are central to the current reform of interest rate benchmarks. A striking feature of overnight rates is the presence of jumps and spikes occurring at predetermined dates due to monetary policy interventions and liquidity constraints.
Claudio Fontana +2 more
wiley +1 more source