Results 61 to 70 of about 5,493,517 (164)

ViGeo-Fuse: A multimodal framework integrating computer vision and geospatial ML for post-earthquake building damage classification

Developments in the Built Environment
Rapid and reliable assessment of post-earthquake building damage is critical for emergency response, yet existing approaches often rely solely on visual information or are limited by delayed remote sensing data.
Yachun He, Jidong Wu, Lili Wang, Yingjun Xu, Youtian Yang, Wei Wu, Wei Jiang   +6 more
doaj   +1 more source

Catastrophe models and policy processes: Managing flood risk in the Hungarian Tisza River Basin - An introduction

, 2012
In this chapter we provide an introduction to this section of six chapters, which examine how catastrophe models can contribute insights to multi-stakeholder policy processes by focusing on flood risk management in the Hungarian reach of the Upper Tisza ...
Anna Vári, Linnerooth-Bayer, J., Linnerooth-Bayer, Joanne, Vari, Anna, Vari, A., Love Ekenberg, Ekenberg, L., Ekenberg, Love,, Joanne Linnerooth-Bayer   +8 more
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Analysis of pork price fluctuations during the special era when African swine fever and COVID-19 epidemic coexisted: an empirical study in Macau, China

Frontiers in Sustainable Food Systems
IntroductionEmergent crises can have a catastrophic impact on regional economic systems. The concurrent outbreaks of African Swine Fever (ASF) and the COVID-19 pandemic have severely affected Macau’s pork industry, making it an interesting case study for
Fang Xu, Fang Xu, Xiaoyong Ni, Xiaoyong Ni, Kai Liu, Kai Liu, Ming Wang, Ming Wang, Kangye Tan, Jun Hu, Jun Hu   +10 more
doaj   +1 more source

An Arbitrage Approach to the Pricing of Catastrophe Options Involving the Cox Process [PDF]

We investigate the valuation and hedging of catastrophe options, whose claim arrival process is modeled by the Cox process or a doubly stochastic Poisson process.
Ishimura, Naoyuki, Tanaka, Daichi, Fujita, Takahiko   +2 more
core  

Divergent responses of forest canopy height to environmental conditions across China

Ecological Indicators
As major components of terrestrial ecosystems, forest ecosystems play an important role in sequestering carbon and hence mitigating climate change. Canopy height is a crucial factor characterizing the structure and function of forest ecosystems, yet the ...
Xiang Pan, Junjie Ji, Kailin Gao, Tao Wei, Mingzhu He, Xiaohan Zhang   +5 more
doaj   +1 more source

Using participating and financial contracts to insure catastrophe risk: Implications for crop risk management [PDF]

This paper proposes a combination of participating and financial contracts in order to hedge catastrophic risk. Assuming unfair policies and the existence of a basis risk, we prove the optimal coverage is realized using: first, a participating contract ...
Robert Kast, Geoffroy Enjolras
core  

Evaluating the performance of pixel-based and object-based multidimensional clustering algorithms for automated surface water mapping

Geo-spatial Information Science
Remote sensing observations of surface water are vital for effective water resource management and sustainable development. Unsupervised classification holds promise for automating large-scale surface water detection, and it helps solve the difficult ...
Bohao Li, Kai Liu, Ming Wang, Yanfang Wang, Linmei Zhuang, Weihua Zhu, Chenxia Li, Linhao Zhang, Yanan Chen   +8 more
doaj   +1 more source

Corporate Demand for Insurance: An Empirical Analysis of the U.S. Market for Catastrophe and Non-Catastrophe Risks [PDF]

This paper tests some existing theories developed over the past 25 years on corporate demand for insurance. Using a unique dataset of 1,809 large U.S.
Howard C. Kunreuther, Erwann Michel-Kerjan, Paul A. Raschky   +2 more
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Fitting the Cusp Catastrophe in R: A cusp Package Primer [PDF]

Of the seven elementary catastrophes in catastrophe theory, the âÂÂcuspâ model is the most widely applied. Most applications are however qualitative.
Raoul Grasman, Eric-Jan Wagenmakers, Han L.J. van der Maas   +2 more
core  

Research on Remote-Sensing Identification Method of Typical Disaster-Bearing Body Based on Deep Learning and Spatial Constraint Strategy

Remote Sensing
The census and management of hazard-bearing entities, along with the integrity of data quality, form crucial foundations for disaster risk assessment and zoning.
Lei Wang, Yingjun Xu, Qiang Chen, Jidong Wu, Jianhui Luo, Xiaoxuan Li, Ruyi Peng, Jiaxin Li   +7 more
doaj   +1 more source