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32,495 results on '"Li, Xiang-An"'

2. RisQNet: Rescuing SMEs from Financial Shocks with a Novel Networked-Loan Risk Assessment

Author

Lu, Zhaoyuan, Li, Taijun, Zhang, Jingzhen, Liu, Moyang, Li, Xiang, Cui, Linyi, Chen, Junqi, and Niu, Zhibin

Abstract

In the face of economic downturns, Small and Medium-sized Enterprises (SMEs) within interconnected networked-loans are vulnerable to cascading debt crises, exacerbated by factors like social media-induced financial shocks. Traditional risk assessment models, which mainly rely on financial data, inadequately predict such crises, as evidenced by the collapse of Silicon Valley Bank in 2023. To address this issue, we developed RisQNet, a model that uses temporal graph networks to incorporate diverse risks, including real-time media influences. This approach not only advances risk prediction through news feature extraction and large language models but also enhances risk management strategies with intuitive visualization tools. Validated on a dataset with a total loan volume of USD 3 trillion, RisQNet outperforms the state-of-the-art baseline and achieves 87.1% of AUC. Our collaborative effort with financial regulators and the SME community underpins the model's development, aligning with the UN SDG 8. RisQNet represents a significant step forward in leveraging AI for financial stability, offering a promising approach to combat the propagation of debt crises in financial networks.

Published
2024

9. Thoughts for the future

Author

Alkhalaf, Lona M., Arrowsmith, Cheryl, Balskus, Emily P., Bergamini, Giovanna, Bhandari, Rashna, Chang, Christopher J., Chen, Peng, Chen, Xing, Ciulli, Alessio, Cricco, Julia A., Davis, Benjamin G., Delbianco, Martina, Dudareva, Natalia, Dueber, Erin, Ferguson, Fleur, de Giuseppe, Priscila Oliveira, Hamachi, Itaru, Hammond, Ming Chen, Hatzios, Stavroula K., Do Heo, Won, Janet, Jon Paul, Kamat, Siddhesh S., Knapp, Stefan, Krishnan, Yamuna, Lang, Kathrin, Laraia, Luca, Leveson-Gower, Reuben B., Li, Xiang David, Liu, David R., Liu, Mo-Fang, London, Nir, Mahanta, Nilkamal, Mayor-Ruiz, Cristina, Muir, Tom, Murakami, Mário Tyago, Rhee, Hyun-Woo, Robers, Matt, Satz, Alex, Schulman, Brenda A., Shen, Ben, Shoichet, Brian, Strauss, Erick, Suzuki, Tsutomu, Tiwary, Pratyush, Waldmann, Herbert, Ward, Thomas R., Weeks, Amy, Weerapana, Eranthie, and Winter, Georg

Published
2025
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50. Exploring the Behaviors of Initiated Progressive Failure and Slow‐Moving Landslides in Los Angeles Using Satellite InSAR and Pixel Offset Tracking

Author

Li, Xiang, Handwerger, Alexander L, Peltzer, Gilles, and Fielding, Eric

Subjects
Geomatic Engineering, Engineering, Meteorology & Atmospheric Sciences
Abstract

Catastrophic landslides are often preceded by slow, progressive, accelerating deformation that differs from the persistent motion of slow-moving landslides. Here, we investigate the motion of a landslide that damaged 12 homes in Rolling Hills Estates (RHE), Los Angeles, California on 8 July 2023, using satellite-based synthetic aperture radar interferometry (InSAR) and pixel tracking of satellite-based optical images. To better understand the precursory motion of the RHE landslide, we compared its behavior with local precipitation and with several slow-moving landslides nearby. Unlike the slow-moving landslides, we found that RHE was a first-time progressive failure that failed after one of the wettest years on record. We then applied a progressive failure model to interpret the failure mechanisms and further predict the failure time from the pre-failure movement of RHE. Our work highlights the importance of monitoring incipient slow motion of landslides, particularly where no discernible historical displacement has been observed.

Published
2024

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