Search Results for author: Arya Farahi

Found 12 papers, 4 papers with code

U-Trustworthy Models.Reliability, Competence, and Confidence in Decision-Making

no code implementations4 Jan 2024 Ritwik Vashistha, Arya Farahi

Conventionally, trustworthy AI literature relies on the probabilistic framework and calibration as prerequisites for trustworthiness.

Decision Making Model Selection +1

SHAPing the Gas: Understanding Gas Shapes in Dark Matter Haloes with Interpretable Machine Learning

no code implementations25 Nov 2020 Luis Fernando Machado Poletti Valle, Camille Avestruz, David J. Barnes, Arya Farahi, Erwin T. Lau, Daisuke Nagai

In this study we explore a machine learning approach for modelling the dependence of gas shapes on dark matter and baryonic properties.

Cosmology and Nongalactic Astrophysics

PoPE: A population-based approach to model spatial structure of astronomical systems

1 code implementation29 Jun 2020 Arya Farahi, Daisuke Nagai, Yang Chen

We present a novel population-based Bayesian inference approach to model the average and population variance of spatial distribution of a set of observables from ensemble analysis of low signal-to-noise ratio measurements.

Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies Instrumentation and Methods for Astrophysics

Approximate Bayesian Uncertainties on Deep Learning Dynamical Mass Estimates of Galaxy Clusters

1 code implementation23 Jun 2020 Matthew Ho, Arya Farahi, Markus Michael Rau, Hy Trac

We study methods for reconstructing Bayesian uncertainties on dynamical mass estimates of galaxy clusters using convolutional neural networks (CNNs).

Cosmology and Nongalactic Astrophysics

Dark Energy Survey Year 1 Results: Cosmological Constraints from Cluster Abundances and Weak Lensing

no code implementations25 Feb 2020 DES Collaboration, Tim Abbott, Michel Aguena, Alex Alarcon, Sahar Allam, Steve Allen, James Annis, Santiago Avila, David Bacon, Alberto Bermeo, Gary Bernstein, Emmanuel Bertin, Sunayana Bhargava, Sebastian Bocquet, David Brooks, Dillon Brout, Elizabeth Buckley-Geer, David Burke, Aurelio Carnero Rosell, Matias Carrasco Kind, Jorge Carretero, Francisco Javier Castander, Ross Cawthon, Chihway Chang, Xinyi Chen, Ami Choi, Matteo Costanzi, Martin Crocce, Luiz da Costa, Tamara Davis, Juan De Vicente, Joseph DeRose, Shantanu Desai, H. Thomas Diehl, Jörg Dietrich, Scott Dodelson, Peter Doel, Alex Drlica-Wagner, Kathleen Eckert, Tim Eifler, Jack Elvin-Poole, Juan Estrada, Spencer Everett, August Evrard, Arya Farahi, Ismael Ferrero, Brenna Flaugher, Pablo Fosalba, Josh Frieman, Juan Garcia-Bellido, Marco Gatti, Enrique Gaztanaga, David Gerdes, Tommaso Giannantonio, Paul Giles, Sebastian Grandis, Daniel Gruen, Robert Gruendl, Julia Gschwend, Gaston Gutierrez, Will Hartley, Samuel Hinton, Devon L. Hollowood, Klaus Honscheid, Ben Hoyle, Dragan Huterer, David James, Mike Jarvis, Tesla Jeltema, Margaret Johnson, Stephen Kent, Elisabeth Krause, Richard Kron, Kyler Kuehn, Nikolay Kuropatkin, Ofer Lahav, Ting Li, Christopher Lidman, Marcos Lima, Huan Lin, Niall MacCrann, Marcio Maia, Adam Mantz, Jennifer Marshall, Paul Martini, Julian Mayers, Peter Melchior, Juan Mena, Felipe Menanteau, Ramon Miquel, Joe Mohr, Robert Nichol, Brian Nord, Ricardo Ogando, Antonella Palmese, Francisco Paz-Chinchon, Andrés Plazas Malagón, Judit Prat, Markus Michael Rau, Kathy Romer, Aaron Roodman, Philip Rooney, Eduardo Rozo, Eli Rykoff, Masao Sako, Simon Samuroff, Carles Sanchez, Alexandro Saro, Vic Scarpine, Michael Schubnell, Daniel Scolnic, Santiago Serrano, Ignacio Sevilla, Erin Sheldon, J. Allyn Smith, Eric Suchyta, Molly Swanson, Gregory Tarle, Daniel Thomas, Chun-Hao To, Michael A. Troxel, Douglas Tucker, Tamas Norbert Varga, Anja von der Linden, Alistair Walker, Risa Wechsler, Jochen Weller, Reese Wilkinson, Hao-Yi Wu, Brian Yanny, Zhuowen Zhang, Joe Zuntz

We perform a joint analysis of the counts and weak lensing signal of redMaPPer clusters selected from the Dark Energy Survey (DES) Year 1 dataset.

Cosmology and Nongalactic Astrophysics

Stellar Property Statistics of Massive Halos from Cosmological Hydrodynamics Simulations: Common Kernel Shapes

no code implementations7 Jan 2020 Dhayaa Anbajagane, August E. Evrard, Arya Farahi, David J. Barnes, Klaus Dolag, Ian G. McCarthy, Dylan Nelson, Annalisa Pillepich

The highest resolution simulations find $\gamma \simeq -0. 8$ for the $z=0$ shape of $p(\ln M_{\star,\rm BCG}\,|\, M_{\rm halo}, z)$ and also that the fractional scatter in total stellar mass is below $10\%$ in halos more massive than $10^{14. 3} M_{\odot}$.

Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics

A Robust and Efficient Deep Learning Method for Dynamical Mass Measurements of Galaxy Clusters

1 code implementation15 Feb 2019 Matthew Ho, Markus Michael Rau, Michelle Ntampaka, Arya Farahi, Hy Trac, Barnabas Poczos

Our first model, CNN$_\text{1D}$, infers cluster mass directly from the distribution of member galaxy line-of-sight velocities.

Cosmology and Nongalactic Astrophysics

ActiveRemediation: The Search for Lead Pipes in Flint, Michigan

no code implementations10 Jun 2018 Jacob Abernethy, Alex Chojnacki, Arya Farahi, Eric Schwartz, Jared Webb

We detail our ongoing work in Flint, Michigan to detect pipes made of lead and other hazardous metals.

Driving with Data: Modeling and Forecasting Vehicle Fleet Maintenance in Detroit

1 code implementation18 Oct 2017 Josh Gardner, Danai Koutra, Jawad Mroueh, Victor Pang, Arya Farahi, Sam Krassenstein, Jared Webb

Understanding the existence of patterns and trends in this data could be useful to a variety of stakeholders, particularly as Detroit emerges from Chapter 9 bankruptcy, but the patterns in such data are often complex and multivariate and the city lacks dedicated resources for detailed analysis of this data.

Computers and Society

Flint Water Crisis: Data-Driven Risk Assessment Via Residential Water Testing

no code implementations30 Sep 2016 Jacob Abernethy, Cyrus Anderson, Chengyu Dai, Arya Farahi, Linh Nguyen, Adam Rauh, Eric Schwartz, Wenbo Shen, Guangsha Shi, Jonathan Stroud, Xinyu Tan, Jared Webb, Sheng Yang

In this analysis, we find that lead service lines are not the only factor that is predictive of the risk of lead contamination of water.

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