Last Updated: 20260820

International CHASC AstroStatistics Centre

Topics in Astrostatistics

AY 2026-2027

Archive

Schedule Wednesdays Noon - 1:30pm Eastern Time
Location Various + Zoom


Presentations
CHASC Astrostatistics Workshop
Aug 6
10am-6pm EDT
Pratt@CfA and Zoom
Agenda:
As a follow on from the JSM at Boston, we will be holding a CHASC AstroStatistics workshop at the CfA tomorrow. The goal is to have [informal] discussions about several topics of interest.
Session 1
Video recording [!yt]
  • Chandra Analysis of Cygnus A using Jolideco, Zach Knutson
  • Modeling Shapes with Possible Links to Image Analysis, Susan Glenn and David Stenning
  • Disentangling Posteriors: Sparse Autoencoders for Embedding-Driven SBI. Samata Das
  • Millions of Galaxies, Sparse Information: Reliable SED Inference for SHELA/HETDEX with Neural Density Estimators, Lishan Shi
Session 2
Video recording [!yt]
  • Interpretable Amortized Inference for Stellar Parameters, Matthew O'Callaghan
  • Accounting for Contamination of SNe data, Max Autenrieth
  • Censored Weibull processes for Radio-Burst Arrival Times, Amanda Cook
  • Marginalization with Moment Generating Functions, Siyang Li
Session 3
Video recording not available
  • Modeling the Distribution of Solar Flares, Bernhard Klingenberg
  • Fast Distributional Emulators for Exoplanets and Space Science, Ky Potter
 
Shihao Yang (Georgia Tech)
Aug 26
Noon EDT
Zoom
Discussion on Communication-constrained Inference
Recently, I have been working with Amy Braverman and Li-Hsiang Lin on communication-constrained statistical inference. The general question is this: when observations are distributed across multiple instruments, sensors, or sites, and the raw data cannot all reach a central processor before a scientific deadline, what information should each site transmit? We want to understand when low-dimensional summaries can reproduce centralized inference exactly, when iterative communication is needed, and when inference necessarily deteriorates as bandwidth or latency becomes more restrictive.
Astronomy may have exactly this type of problem. One example I found is rapid localization and characterization of a high-energy transient using a network or constellation of photon-counting detectors. Each detector observes part of the event, while communication may limit how much timing and energy information can be combined before an important follow-up deadline.
 
Darlin Soto (PCU Chile)
(Postponed to 2027)
Zoom
Timing modeling
 
Robert Zimmerman (Imperial)
(Postponed to 2027)
Zoom
Pileup
 
 
 
 
















Archive
Fall/Winter 2004-2005
Siemiginowska, A. / Connors, A. / Kashyap, V. / Zezas, A. / Devor, J. / Drake, J. / Kolaczyk, E. / Izem, R. / Kang, H. / Yu, Y. / van Dyk, D.
Fall/Winter 2005-2006
van Dyk, D. / Ratner, M. / Jin, J. / Park, T. / CCW / Zezas, A. / Hong, J. / Siemiginowska, A. & Kashyap, V. / Meng, X.-L.
Fall/Winter 2006-2007
Lee, H. / Connors, A. / Protopapas, P. / McDowell, J., / Izem, R. / Blondin, S. / Lee, H. / Zezas, A., & Lee, H. / Liu, J.C. / van Dyk, D. / Rice, J.
Fall/Winter 2007-2008
Connors, A., & Protopapas, P. / Steiner, J. / Baines, P. / Zezas, A. / Aldcroft, T.
Fall/Winter 2008-2009
H. Lee / A. Connors, B. Kelly, & P. Protopapas / P. Baines / A. Blocker / J. Hong / H. Chernoff / Z. Li / L. Zhu (Feb) / A. Connors (Pt.1) / A. Connors (Pt.2) / L. Zhu (Mar) / E. Kolaczyk / V. Liublinska / N. Stein
Fall/Winter 2009-2010
A.Connors / B.Kelly / N.Stein, P.Baines / D.Stenning / J. Xu / A.Blocker / P.Baines, Y.Yu / V.Liublinska, J.Xu, J.Liu / Meng X.L., et al. / A. Blocker, et al. / A. Siemiginowska / D. Richard / A. Blocker / Xie X. / Xu J. / V. Liublinska / L. Jing
AcadYr 2010-2011
Astrostat Haiku / P. Protopapas / A. Zezas & V. Kashyap / A. Siemiginowska / K. Mandel / N. Stein / A. Mahabal / Hong J.S. / D. Stenning / A. Diaferio / Xu J. / B. Kelly / P. Baines & I. Udaltsova / M. Weber
AcadYr 2011-2012
A. Blocker / Astro for Stat / B. Kelly / R. D'Abrusco / E. Turner / Xu J. / T. Loredo / A. Blocker / P. Baines / A. Zezas et al. / Min S. & Xu J. / O. Papaspiliopoulos / Wang L. / T. Laskar
AcadYr 2012-2013
N. Stein / A. Siemiginowska / D. Cervone / R. Dawson / P. Protopapas / K. Reeves / Xu J. / J. Scargle / Min S. / Wang L. & D. Jones / J. Steiner / B. Kelly / K. McKeough
AcadYr 2013-2014
Meng X.-L. / Meng X.-L., K. Mandel / A. Siemiginowska / S. Vrtilek & L. Bornn / Lazhi W. / D. Jones / R. Wong / Xu J. / van Dyk D. / Feigelson E. / Gopalan G. / Min S. / Smith R. / Zezas A. / van Dyk D. / Hyungsuk T. / Czerny, B. / Jones D. / Liu K. / Zezas A.
AcadYr 2014-2015
Vegetabile, B. & Aldcroft, T., / H. Jae Sub / Siemiginowska, A. & Kashyap, V. / Pankratius, V. / Tak, H. / Brenneman, L. / Johnson, J. / Lynch, R.C. / Fan, M.J. / Meng, X.-L. / Gopalan, G. / Jiao, X. / Si, S. / Udaltsova, I. & Zezas, A. / Wang, L. / Tak, H. / Eadie, G. / Czekala, I. / Stenning, D. / Stampoulis, V. / Aitkin, M. / Algeri, S. / Barnacka, A.
AcadYr 2015-2016
DePasquale, J. / Tak, H. / Meng, X.-L. / Jones, D. / Huang, J. / Blanchard, P. / Chen, Y. & Wang, X. / Tak, H. / Mandel, K. / Jiao, X. / Wang, X. & Chen, Y. / IACHEC WG / Si, S. / Drake, J. / Stampoulis, V. / Algeri, S. / Stein, N. / Chunzhe, Z. / Andrews, J. / Vrtilek, S. / Udaltsova, I. & Stampoulis, V.
AcadYr 2016-2017
Wang, X. & Chen, Y. / Kashyap, V., Siemiginowska, A., & Zezas, A. / Stampoulis, V. / Portillo, S. / Zhang, K. / Mandel, K. / DiStefano, R. / Finkbeiner, D. & Meade, B. / Gong, R. / Shihao Y. / Zhirui, H. / Xufei, W. / Campos, L. / Tak, H. / Xufei, W. / Jones, D. / Algeri, S. / Speagle, J. / Czekala, I.
AcadYr 2017-2018
AstroStat Day / Speagle, J. / Collin, G. / McKeough, K. & Yang, S. / McKeough, K. & Campos, L. / M. Ntampaka / H. Marshall / D. Huppenkothen / X. Yu / R. DiStefano / J. Yee / H. Tak / A. Avelino
AcadYr 2018-2019
Stenning, D. / Dvorkin, C. / Sottosanti, A. / Yu, X. / Chen, Y. / Jones, D. / Lee, T.C.-M. / Tak, H. / Kashyap, V., McKeough, K., Campos, L., et al. / Baines, P. / Collin, G. / Muthukrishna, D. / Zhang, D. / Algeri, S. / Janson, L. / Ward, S. / de Beurs, Z.
AcadYr 2019-2020
McKeough, K. / Astudillo, J. & Protopapas, P. / Zezas, A. / Speagle, J. / Meng, X.-L., Siemiginowska, A., & Kashyap, V. / Bonfini, P. / Liu, C. / Guenther, H. / Castrillon, J. / McKeough, K. / Broekgaarden, F. / Autenrieth, M. / Motta, G. / Zucker, C. / Tak, H. / Kashyap, V. & Wang, X. / Wang, J. / Wang, X. & Ingram, J.
AcadYr 2020-2021
Diaz Rivero, A. / Marshall, H. & Chen, Y. / McKeough, K. / Chen, Y. / Patil, A. / Jerius, D. / Wang, X. / Siemiginowska, A. / Xu, C. / Picquenot, A. / Jacovich, T. / Geringer-Sameth, A. / Toulis, P. / Donath, A. / Ergin, T. / Phillipson, R. / Sun, H. / Autenrieth, M.
AcadYr 2021-2022
Makinen, T.L. / Siemiginowska, A. / Fox-Fortino, W. / Reddy, K. / Primini, F. / Mishra-Sharma, S. / Meyer, A. / Janson, L. / Group
AcadYr 2022-2023
Saydjari, A. / Rau, M.M. / McKimm, H. / Sairam, L. / Meyer, A. / SCMA8 / Kochanski, N. & Chen, Y. / Jones, G. / ISI WSC / Li, D.D.
AcadYr 2023-2024
Garraffo, C. / Gu, M. / Villar, A. & Martinez-Galarza, J.R. / Siemiginowska, A. / Protopapas, P. / Marshall, H., Athiray, S., & Kashyap, V.L. / Daoud, A. / Uzsoy, A.-S. / Donath, A. / Zhang, X. / Chen, Y. & Bonamente, M. / Bayle, A. / Sengupta, S. / Li, J.S. / Vishwanath, S. / Motta, G.
AcadYr 2024-2025
Tak, H. / Song, Y. / Lee, A. / Reissel, C. / Yang, J. / Zimmerman, R. / Marshall, H. / Lefkir, M. / Li, S. / van Dyk, D. (Part I) / van Dyk, D. (Part II) / van Dyk, D. (Part III) / Wang, Y. / Florian Frank, P. / Banerjee, A. / Burke, C. / Adithya, H.N.
AcadYr 2025-2026
Guardini, M. / Ingram, J. / Scargle, J. / Scargle, J. / Soto, D. / Zimmerman, R.
AcadYr 2025-2027
CHASC Workshop / Shihao, Y.
CHASC