2 papers
stat.AP2026
Issue-Specific Polarization and Cohesion in a Multi-Party Legislature: Integrating the Latent Space Item Response Model with Topic-Based Regression
Seungju Lee, In-Kyun Kim, Ick Hoon Jin
We develop a one-stage Bayesian framework for quantifying issue-specific legislative alignment in multi-party systems. The approach integrates a Latent Space Item Response Model (L…
stat.AP2025
Euclidean Ideal Point Estimation From Roll-Call Data via Distance-Based Bipartite Network Models
Seungju Lee, In Kyun Kim, Jong Hee Park +1
Conventional ideal point models rely on Gaussian or quadratic utility functions that violate the triangle inequality, producing non-metric distances that complicate geometric inter…