A Bayesian nonparametric approach to correct for underreporting in count data
We propose a nonparametric compound Poisson model for underreported count data that
introduces a latent clustering structure for the reporting probabilities. The latter are estimated …
introduces a latent clustering structure for the reporting probabilities. The latter are estimated …
The doubly correlated nonparametric topic model
D Kim, E Sudderth - Advances in Neural Information …, 2011 - proceedings.neurips.cc
Topic models are learned via a statistical model of variation within document collections, but
designed to extract meaningful semantic structure. Desirable traits include the ability to …
designed to extract meaningful semantic structure. Desirable traits include the ability to …
Softplus regressions and convex polytopes
M Zhou - arXiv preprint arXiv:1608.06383, 2016 - arxiv.org
To construct flexible nonlinear predictive distributions, the paper introduces a family of
softplus function based regression models that convolve, stack, or combine both operations …
softplus function based regression models that convolve, stack, or combine both operations …
Improved Bayesian ISAR imaging by learning the local structures of the target scene
L Sun, W Chen - IEEE Sensors Journal, 2019 - ieeexplore.ieee.org
In inverse synthetic aperture radar (ISAR) imaging, some weak scatterers might be missing
in the results obtained by conventional compressive sensing (CS)-based methods. This …
in the results obtained by conventional compressive sensing (CS)-based methods. This …
Stochastic geometry to generalize the Mondrian process
E O'Reilly, NM Tran - SIAM Journal on Mathematics of Data Science, 2022 - SIAM
The stable under iteration (STIT) tessellation process is a stochastic process that produces a
recursive partition of space with cut directions drawn independently from a distribution over …
recursive partition of space with cut directions drawn independently from a distribution over …
Hierarchical Dirichlet scaling process
We present the hierarchical Dirichlet scaling process (HDSP), a Bayesian nonparametric
mixed membership model for multi-labeled data. We construct the HDSP based on the …
mixed membership model for multi-labeled data. We construct the HDSP based on the …
Spatially dependent mixture models via the logistic multivariate CAR prior
We consider the problem of spatially dependent areal data, where for each area
independent observations are available, and propose to model the density of each area …
independent observations are available, and propose to model the density of each area …
Spatially‐correlated time series clustering using location‐dependent Dirichlet process mixture model
J Jung, S Kim, H Kim - … Analysis and Data Mining: The ASA …, 2024 - Wiley Online Library
The Dirichlet process mixture (DPM) model has been widely used as a Bayesian
nonparametric model for clustering. However, the exchangeability assumption of the …
nonparametric model for clustering. However, the exchangeability assumption of the …
Mixing it up: Inflation at risk
M Schröder - arXiv preprint arXiv:2405.17237, 2024 - arxiv.org
Assessing the contribution of various risk factors to future inflation risks was crucial for
guiding monetary policy during the recent high inflation period. However, existing …
guiding monetary policy during the recent high inflation period. However, existing …
[HTML][HTML] Theory and computations for the Dirichlet process and related models: An overview
A Jara - International Journal of Approximate Reasoning, 2017 - Elsevier
Data analysis sometimes requires the relaxation of parametric assumptions in order to gain
modeling flexibility and robustness against mis-specification of the probability model. In the …
modeling flexibility and robustness against mis-specification of the probability model. In the …