Masao Ueki

collaborators

2 papers

math.ST2024

Singularities in bivariate normal mixtures

Yutaro Kabata, Hirotaka Matsumoto, Seiichi Uchida +1

We investigate mappings $F = (f_{1}, f_{2}) : R^{2} \to R^{2}$ where $f_{1}, f_{2}$ are bivariate normal densities from the perspective of singularity theory of mappi…

stat.ME2016

Bayesian generalized fused lasso modeling via NEG distribution

Kaito Shimamura, Masao Ueki, Shuichi Kawano +1

The fused lasso penalizes a loss function by the $L_{1}$ norm for both the regression coefficients and their successive differences to encourage sparsity of both. In this paper, we p…