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62 papers · 1 filter
Towards Mitigating Dimensional Collapse of Representations in Collaborative Filtering
Huiyuan Chen, Vivian Lai, Hongye Jin +3
Contrastive Learning (CL) has shown promising performance in collaborative filtering. The key idea is to generate augmentation-invariant embeddings by maximizing the Mutual Informa…
A Dynamic Galaxy: Stellar Age Patterns Across the Disk of M101
Ray Garner, J. Christopher Mihos, Paul Harding +1
Using deep, narrowband imaging of the nearby spiral galaxy M101, we present stellar age information across the full extent of the disk of M101. Our narrowband filters measure age-s…
Bayesian nonparametric generative modeling of large multivariate non-Gaussian spatial fields
Paul F. V. Wiemann, Matthias Katzfuss
Multivariate spatial fields are of interest in many applications, including climate model emulation. Not only can the marginal spatial fields be subject to nonstationarity, but the…
A Milky Way-like barred spiral galaxy at a redshift of 3
Luca Costantin, Pablo G. Pérez-González, Yuchen Guo +30
The majority of massive disk galaxies in the local Universe show a stellar barred structure in their central regions, including our Milky Way. Bars are supposed to develop in dynam…
Directed Cyclic Graph for Causal Discovery from Multivariate Functional Data
Saptarshi Roy, Raymond K. W. Wong, Yang Ni
Discovering causal relationship using multivariate functional data has received a significant amount of attention very recently. In this article, we introduce a functional linear s…
Anatomy of Path Integral Monte Carlo: algebraic derivation of the harmonic oscillator's universal discrete imaginary-time propagator and its sequential optimization
Siu A. Chin
The direct integration of the harmonic oscillator path integral obscures the fundamental structure of its discrete, imaginary time propagator (density matrix). This work, by first…