no code implementations • 19 Nov 2024 • Jimmy Hickey, Jonathan P. Williams, Brian J. Reich, Emily C. Hector
Negative transfer is mitigated to ensure that the information shared from the other demographic groups does not negatively impact the modeling of the underrepresented participants.
no code implementations • 18 Oct 2024 • David Randahl, Jonathan P. Williams, Håvard Hegre
Forecasting of armed conflicts is an important area of research that has the potential to save lives and prevent suffering.
no code implementations • 11 Dec 2023 • Anders Hjort, Gudmund Horn Hermansen, Johan Pensar, Jonathan P. Williams
Non-parametric machine learning models, such as random forests and gradient boosted trees, are frequently used to estimate house prices due to their predictive accuracy, but such methods are often limited in their ability to quantify prediction uncertainty.
1 code implementation • 21 Feb 2023 • Neil Dey, Jonathan P. Williams
However, this can come with the risk of overtraining; in order for the model to generalize well, it is of great importance that we are able to find the optimal parameter for the model on the entire population -- not only on the given training sample.
no code implementations • 29 Nov 2022 • Jimmy Hickey, Jonathan P. Williams, Emily C. Hector
Most existing transfer learning approaches are based on fine-tuning pre-trained neural network models, and fail to provide crucial uncertainty quantification.
no code implementations • 7 Oct 2020 • Camilo González-Ruilova, Lucas A. Cieza, Antonio S. Hales, Sebastián Pérez, Alice Zurlo, Carla Arce-Tord, Simón Casassus, Hector Cánovas, Mario Flock, Gregory J. Herczeg, Paola Pinilla, Daniel J. Price, David A. Principe, Dary Ruíz-Rodríguez, Jonathan P. Williams
ISO-Oph 2 is a wide-separation (240 au) binary system where the primary star harbors a massive (M$_{dust}$ $\sim$40 M$_{\oplus}$) ring-like disk with a dust cavity $\sim$50 au in radius and the secondary hosts a much lighter (M$_{dust}$ $\sim$0. 8 M$_{\oplus}$) disk.
Earth and Planetary Astrophysics Solar and Stellar Astrophysics 85-11 J.2
no code implementations • 2 Nov 2016 • Alice Zurlo, Lucas A. Cieza, Jonathan P. Williams, Hector Canovas, Sebastian Perez, Antonio Hales, Koraljka Mužić, David A. Principe, Dary Ruíz-Rodríguez, John Tobin, Yichen Zhang, Zhaohuan Zhu, Simon Casassus, Jose L. Prieto
We report the detection of a marginally resolved circumstellar disc in the ALMA continuum with an integrated flux of $106 \pm 2$ mJy, characteristic radius of $\sim$ 30 au, inclination of $14. 0^{+7. 8}_{-14. 5}$ deg, and is oriented nearly face-on with respect to the plane of the sky.
Solar and Stellar Astrophysics Astrophysics of Galaxies Instrumentation and Methods for Astrophysics