A search for a quantitative comparison of galaxy clustering algorithms

Details A search for a quantitative comparison of galaxy clustering algorithms A search for a quantitative comparison of galaxy clustering algorithms

Jan 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...253...74g&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 253, no. 1, Jan. 1992, p. 74-76.

Statistics

Computation

4

Cluster Analysis, Galactic Clusters, Algorithms, Computational Astrophysics

Scientific paper

While several automatic cluster analysis methods have been used to study galaxy grouping and clustering, it remains difficult to compare the grouping of galaxies without a suitable tool. The mathematical distance Dij is therefore presently sought between two given classifications. An illustrative example is given for the group-membership stability of each of two cases: (1) where a single algorithm is applied with different parameters, and (2) where two different algorithms are applied.

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