Desnity estimation on a cosmic scale

[michael.h.f.wilkinson]

I am really chuffed we got a paper published in Astronomy and Astrophysics on a comparison of density estimation techniques to determine the environment of galaxies in the cosmos. Though I orginally studied astronomy, I moved to computer science, and am now senior lecturer at the computer science department. In a collaboration with the Kapteyn Astronomical Institute I now have my first real astronomical journal paper.

In summary we find that a method commonly used in astronomy does not perform as well as a method originally developed for estimation of data points over abstract data spaces. The method we put forward is faster (especially on large data sets) and more accurate in most cases.

Details and the pdf can be found below.

B.J. Ferdosi, H. Buddelmeijer, S.C. Trager, M.H.F. Wilkinson, and J.B.T.M. Roerdink. Comparison of desnity estimation methods for astronomical datasets. Astronomy and Astrophysics (2011), 531: A114, DOI: 10.1051/0004-6361/201116878. PDF file downloadable here

[ollypenrice]

Nice one Michael. I was fascinated by our brief conversations and think that what you are doing is great stuff.

Olly

[michael.h.f.wilkinson]

Hi Olly,

It was great meeting you and Monique in France, and seeing your wonderful set-up. Rest assured: <Austrian accent> I'll be back </Austrian accent>. Until then we will have to make do with SGL.

Cheers,

Michael

[George Jones]

Excellent! Good data analysis is so important in today's astronomy,astrophysics, and cosmology.

[Macavity]

Nice when you appear VISIBLY in the author list

- Not buried among some "cast of thousands"...