5 papers
Bayesian Matrix-Valued Graphs for Context-Dependent Multivariate Relationships
Papri Dey
Many scientific graphs attach several variables to each node, so a single scalar edge weight cannot describe direction-dependent interactions. We model each edge by a symmetric pos…
Sampled-data Robust Control of Electrically Stimulated Engineered Cell Factories
Papri Dey, Ksenia Zlobina, Nicholas A. Rondoni +1
Closed-loop bioelectronic regulation of engineered secretory cell systems is challenging because electric-field (EF) stimulation acts indirectly through transcription-factor activa…
Geometry-Aware Langevin Sampling for Matrix-Valued Graph Learning
Papri Dey
Bayesian inference over positive semidefinite (PSD) matrix-valued parameters arises in structured covariance estimation, graph-Laplacian precision models, and multi-output graph le…
Lorentzian Polynomials, Semipositive Cones, and Cone-Stable EVI Systems
Papri Dey
Lorentzian and completely log-concave polynomials have recently emerged as a unifying framework for negative dependence, log-concavity, and convexity in combinatorics and probabili…
$\K$-Lorentzian and $\K$-CLC Polynomials in Stability Analysis
Papri Dey
We study the class of $\K$-Lorentzian polynomials, a generalization of the distinguished class of Lorentzian polynomials. As shown in \cite{GPlorentzian}, the set of $\K$-Lorentzia…