3 papers
q-fin.GN2025
A Method for Evaluating the Interpretability of Machine Learning Models in Predicting Bond Default Risk Based on LIME and SHAP
Yan Zhang, Lin Chen, Yixiang Tian
Interpretability analysis methods for artificial intelligence models, such as LIME and SHAP, are widely used, though they primarily serve as post-model for analyzing model outputs.…
q-fin.GN2024
The Impact of Implicit Government Guarantee on Credit Rating of Municipal Investment Bonds
Yan Zhang, Yixiang Tian, Lin Chen
One type of bond with the most implicit government guarantee is municipal investment bonds. In recent years, there have been an increasing number of downgrades in the credit rating…
q-fin.GN2024
Implicit Government Guarantee Measurement Based on PMC Index Model
Yan Zhang, Yixiang Tian, Lin Chen +1
The implicit government guarantee hampers the recognition and management of risks by all stakeholders in the bond market, and it has led to excessive debt for local governments or…