Galaxy Bias (disambiguation)

Galaxy Bias may refer to:

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  Galaxy bias (cosmology)

  In cosmology, the statistical relationship between the observed distribution of galaxies and the underlying matter density field.

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  Galaxy bias in observational astronomy

  The effects and systematic selection differences that cause observed galaxy populations to not perfectly represent the underlying true galaxy distribution.

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  Galaxy bias (machine learning / sampling)

  A name sometimes used for systematic bias in how galaxy data are sampled or labeled for modeling and analysis tasks.