Journal article
Data compression and covariance matrix inspection: cosmic shear
- Abstract:
-
Covariance matrices are among the most difficult pieces of end-to-end cosmological analyses. In principle, for two-point functions, each component involves a four-point function, and the resulting covariance often has hundreds of thousands of elements. We investigate various compression mechanisms capable of vastly reducing the size of the covariance matrix in the context of cosmic shear statistics. This helps identify which of its parts are most crucial to parameter estimation. We start w...
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- Publication status:
- Published
- Peer review status:
- Peer reviewed
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Authors
Bibliographic Details
- Publisher:
- American Physical Society Publisher's website
- Journal:
- Physical Review D Journal website
- Volume:
- 103
- Issue:
- 10
- Article number:
- 103535
- Publication date:
- 2021-05-28
- Acceptance date:
- 2021-04-11
- DOI:
- EISSN:
-
2470-0029
- ISSN:
-
2470-0010
Item Description
- Language:
- English
- Keywords:
- Pubs id:
-
1323922
- Local pid:
- pubs:1323922
- Deposit date:
- 2023-01-18
Terms of use
- Copyright holder:
- American Physical Society
- Copyright date:
- 2021
- Rights statement:
- © 2021 American Physical Society
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