72 research outputs found
Mean reflected BSDE driven by a marked point process and application in insurance risk management
This paper aims to solve a super-hedging problem along with insurance
re-payment under running risk management constraints. The initial endowment for
the super-heding problem is characterized by a class of mean reflected backward
stochastic differential equation driven by a marked point process (MPP) and a
Brownian motion. By Lipschitz assumptions on the generators and proper
integrability on the terminal value, we give the well-posedness of this kind of
BSDEs by combining a representation theorem with the fixed point argument.Comment: arXiv admin note: text overlap with arXiv:2310.1472
Reflected BSDE driven by a marked point process with a convex/concave generator
In this paper, a class of reflected backward stochastic differential
equations (RBSDE) driven by a marked point process (MPP) with a convex/concave
generator is studied. Based on fixed point argument, -method and
truncation technique, the well-posedness of this kind of RBSDE with unbounded
terminal condition and obstacle is investigated. Besides, we present an
application on the pricing of American options via utility maximization, which
is solved by constructing an RBSDE with a convex generator.Comment: arXiv admin note: substantial text overlap with arXiv:2310.1472
Quadratic exponential BSDEs driven by a marked point process
In this paper, the well-posedness of quadratic exponential backward
stochastic differential equations driven by marked point process (MPP) under
unbounded terminal condition is studied based on a fixed point argument,
-method and an approximation procedure. We also prove the solvability
of the mean reflected quadratic exponential backward stochastic differential
equations driven by marked point process via -method
ChatCAD+: Towards a Universal and Reliable Interactive CAD using LLMs
The integration of Computer-Assisted Diagnosis (CAD) with Large Language
Models (LLMs) holds great potential in clinical applications, specifically in
the roles of digital family doctors and clinic assistants. However, current
works in this field are plagued by limitations, specifically a restricted scope
of applicable image domains and the provision of unreliable medical advice This
restricts their overall processing capabilities. Furthermore, the mismatch in
writing style between LLMs and radiologists undermines their practical
usefulness. To tackle these challenges, we introduce ChatCAD+, which is
designed to be universal and reliable. It is capable of handling medical images
from diverse domains and leveraging up-to-date information from reputable
medical websites to provide reliable medical advice. Additionally, it
incorporates a template retrieval system that improves report generation
performance via exemplar reports, enabling seamless integration into existing
clinical workflows. The source code is available at
https://github.com/zhaozh10/ChatCAD.Comment: Authors Zihao Zhao, Sheng Wang, Jinchen Gu, Yitao Zhu contributed
equally to this work and should be considered co-first author
Microstructure evolution and electrochemical properties of TiO 2 /Ti-35Nb-2Ta-3Zr micro/nano-composites fabricated by friction stir processing
Forming stable anti-corrosion surface layer and homogenized microstructure on the surface of material has become a major challenge in developing biomedical β titanium alloy. In the study, TiO 2 /Ti-35Nb-2Ta-3Zr anti-corrosion micro/nano-composites with different amount of TiO 2 particles were successfully fabricated by one-pass friction stir processing (FSP). The composition, microstructure and electrochemical properties of the material are characterized systematically. In particular, compact passive oxide films formed on surface of the material after electrochemical corrosion are elaborated from constituent, thickness and structural characteristics. Furthermore, the relationship between various FSP parameters, microstructure presented and corresponding corrosion resistance has been discussed in detail. The results show that TiO 2 /Ti-35Nb-2Ta-3Zr micro/nano-composite layers possess massive uniform β grains with homogeneous dispersive oxygen on the surface. Nanocrystallines surrounded by amorphous phases and α″ martensite accompanied with dislocations are discovered. TiO 2 /Ti-35Nb-2Ta-3Zr micro/nano-composite layers present outstanding corrosion resistance. More TiO 2 added and higher rotation speed promotes the optimization in corrosion resistance forming more compact passive films. The study displays the potential of a new micro/nano-composite with outstanding surface microstructure and corrosion resistance that serves better as a biomedical implant. © 2019 Elsevier Lt
Protein functional module identification method combining topological features and gene expression data
Article conducting an intensive study on the problems of low recognition efficiency and noise in the overlapping structure of protein functional modules, based on topological characteristics of PPI network. Developing a protein function module recognition method ECTG based on Topological Features and Gene expression data for Protein Complex Identification. The experimental results show that the ECTG algorithm can detect
protein functional modules better
- …