Tootfinder

Zero-Inflated Bayesian Multi-Study Infinite Non-Negative Matrix Factorization
Blake Hansen, Dafne Zorzetto, Valeria Edefonti, Roberta De Vito
https://arxiv.org/abs/2510.07518 ht…

Zero-Inflated Bayesian Multi-Study Infinite Non-Negative Matrix Factorization
Understanding the association between dietary patterns and health outcomes, such as the cancer risk, is crucial to inform public health guidelines and shaping future dietary interventions. However, dietary intake data present several statistical challenges: they are high-dimensional, often sparse with excess zeros, and exhibit heterogeneity driven by individual-level covariates. Non-Negative Matrix Factorization (NMF), commonly used to estimate patterns in high-dimensional count data, typically…

Theoretical investigations of tetrameric magnetic molecules for sub-kelvin cooling
D. Westerbeck (Bielefeld University), J. Schnack (Bielefeld University)
https://arxiv.org/abs/2509.22105

Theoretical investigations of tetrameric magnetic molecules for sub-kelvin cooling
Magnetic molecules are a class of compounds that is also investigated in view of their magnetocaloric properties. The isothermal entropy change and the adiabatic temperature change are key figures of merit for magnetocaloric performance. Here, we investigate spin systems of realistic molecular structures comprising four spins. In view of possible large spin quantum numbers as for gadolinium we model these spin systems by a combination of Heisenberg and dipolar spin-spin interactions. It turns o…