Lanzhou University of Finance and Economics

A Bayesian Buckley–James–LightGBM framework for right-censored survival prediction: a methodological study using simulations and biomedical applications

Prediction with right-censored survival outcomes is challenging because incomplete event-time observation degrades estimation prediction, and uncertainty quantification. Cox proportional-hazards and parametric accelerated-failure-time (AFT) models deteriorate when covariate effec...

Does the increase in the minimum wage standard affect corporate innovation? Empirical evidence from Chinese A-share listed companies

Based on the data of Chinese A-share listed companies from 2000 to 2017, a system dynamic panel model is adopted to examine the impact and action mechanisms of the minimum wage standard on the “quantity” and “quality” of corporate innovation in China. Our study finds that: (1) th...

DyVAESurv: A VAE‐Enhanced Model for Dynamic Survival Analysis

Survival analysis plays a crucial role in discovering the relationship between covariates and event times, which is widely applied in individual risk prediction. Traditional methods often rely on static features, resulting in the difficulty of capturing time dependencies, while d...

Reconfiguration of rural social-spatial network by mobile social platform and its impact on apple farmer livelihoods: a case study of Li County, China

Abstract Digital transformation is profoundly reshaping rural socio-economic landscapes and livelihood trajectories worldwide. However, the spatially differentiated mechanisms through which specific mobile social platforms reconfigure farmers’ social-spatial networks and the cons...

Evaluation of the Impact of Aged Biomass Burning Emissions on the Global Ozone From the Surface to the Lower Stratosphere

Abstract Biomass burning (BB) is a major global sources of ozone (O 3 ) precursors, including nitrogen oxides (NO x ), carbon monoxide (CO), and volatile organic compounds (VOCs). Here, we combine Community Earth System Model 1 with airborne measurements from the NASA Atmospheric...

How Does Green Digital Finance Empower Consumption Structure Upgrading?—Spatial Effects, Transmission Mechanisms and Income Thresholds

As an emerging form integrating digital finance and green finance, Green Digital Finance (GDF) serves as a critical driving force for consumption structure upgrading (CSU) and coordinated regional development. Based on panel data of 30 provincial-level regions in China from 2011...