Masao Sako

Full Professor, Physics and Astronomy, University of Pennsylvania, University of Pennsylvania

Joined

July 2019

Names

Masao Sako

Emails

****@sas.upenn.edu (Confirmed)

Personal Links

Homepage

Google Scholar

ORCID

Career & Education History

Full Professor

Physics and Astronomy, University of Pennsylvania, University of Pennsylvania (upenn.edu)

2020 – Present

Associate Professor

Physics and Astronomy, University of Pennsylvania, University of Pennsylvania (upenn.edu)

2012 – 2020

Assistant Professor

Physics and Astronomy, University of Pennsylvania, University of Pennsylvania (upenn.edu)

2006 – 2012

Advisors, Relations & Conflicts

PhD Advisee

Helen Qu

2019 – 2024

Expertise

Cosmology

2004 – 2024

Astrophysics

1995 – 2004

Publications

T-FIX: Text-Based Explanations with Features Interpretable to eXperts
Shreya Havaldar, Helen Jin, Chaehyeon Kim, Anton Xue, Weiqiu You, Gary E. Weissman, Rajat Deo, Sameed Ahmed M. Khatana, Helen Qu, Marco Gatti, Daniel A Hashimoto, Amin Madani, Masao Sako, Bhuvnesh Jain, Lyle Ungar, Eric Wong
- NeurIPS 2025 LLM Evaluation Workshop Poster
- Readers: Everyone
T-FIX: Text-Based Explanations with Features Interpretable to eXperts
Shreya Havaldar, Helen Jin, Chaehyeon Kim, Anton Xue, Weiqiu You, Gary E. Weissman, Rajat Deo, Sameed Ahmed M. Khatana, Helen Qu, Marco Gatti, Daniel A Hashimoto, Amin Madani, Masao Sako, Bhuvnesh Jain, Lyle Ungar, Eric Wong
- FoRLM 2025
- Readers: Everyone
The Dark Energy Survey Supernova Program: an updated measurement of the Hubble constant using the inverse distance ladder
Ryan Camilleri, Tamara M. Davis, Samuel R. Hinton, Patrick Armstrong, Dillon Brout, Lluis Galbany, Karl Glazebrook, Jaemyoung Lee, Chris Lidman, Anais Moller, Robert C. Nichol, Masao Sako, Daniel Scolnic, Paul Shah, Mathew Smith, Mark Sullivan, Bruno Sánchez, Maria Vincenzi, Philip Wiseman, DES Collaboration
- Monthly Notices of the Royal Astronomical Society
- Readers: Everyone
The Dark Energy Survey 5-yr photometrically classified type Ia supernovae without host-galaxy redshifts
Anais Moller, Philip Wiseman, Mathew Smith, Chris Lidman, Tamara M. Davis, Richard Kessler, Masao Sako, Mark Sullivan, Lluis Galbany, Jaemyoung Lee, Robert C. Nichol, Bruno Sánchez, Maria Vincenzi, Brad E. Tucker, DES Collaboration
- Monthly Notices of the Royal Astronomical Society
- Readers: Everyone
The dark energy survey supernova program: investigating beyond-ΛCDM
Ryan Camilleri, Tamara M. Davis, Paul Shah, Joshua Frieman, Richard Kessler, Patrick Armstrong, Dillon Brout, Anthony Carr, Rebecca Chen, Lluis Galbany, Karl Glazebrook, Samuel R. Hinton, Jaemyoung Lee, Chris Lidman, Anais Moller, Brodie Popovic, Helen Qu, Masao Sako, Daniel Scolnic, Mathew Smith et al. (6 additional authors not shown)
- Monthly Notices of the Royal Astronomical Society
- Readers: Everyone
The Dark Energy Survey Supernova Program: Light Curves and 5 Yr Data Release
Bruno Sánchez, Dillon Brout, Maria Vincenzi, Masao Sako, Kenneth Herner, Richard Kessler, Tamara M. Davis, Daniel Scolnic, Maria Acevedo, Jaemyoung Lee, Anais Moller, Helen Qu, Lisa Kelsey, Philip Wiseman, Patrick Armstrong, Benjamin Rose, Ryan Camilleri, Rebecca Chen, Lluis Galbany, Eve Kovacs et al. (7 additional authors not shown)
- The Astrophysical Journal
- Readers: Everyone
The Dark Energy Survey Supernova Program: Corrections on Photometry Due to Wavelength-dependent Atmospheric Effects
Jaemyoung Lee, Maria Acevedo, Masao Sako, Maria Vincenzi, Dillon Brout, Bruno Sanchez
- The Astronomical Journal
- Readers: Everyone
Astrometric Redshifts of Supernovae
Jaemyoung Lee, Masao Sako, Richard Kessler, Alex I. Malz
- The Astrophysical Journal
- Readers: Everyone
The FIX Benchmark: Extracting Features Interpretable to eXperts
Helen Jin, Shreya Havaldar, Chaehyeon Kim, Anton Xue, Weiqiu You, Helen Qu, Marco Gatti, Daniel A Hashimoto, Bhuvnesh Jain, Amin Madani, Masao Sako, Lyle Ungar, Eric Wong
- Accepted by DMLR
- Readers: Everyone
The FIX Benchmark: Extracting Features Interpretable to eXperts
Helen Jin, Shreya Havaldar, Chaehyeon Kim, Anton Xue, Weiqiu You, Helen Qu, Marco Gatti, Daniel A Hashimoto, Bhuvnesh Jain, Amin Madani, Masao Sako, Lyle Ungar, Eric Wong
- ICLR 2025 Conference Withdrawn Submission
- Readers: Everyone

Co-Authors

View all 48 co-authors