Sounds like he should talk to his supervisor rather tnan Quick!
David
On Thu, 5
Feb 2004, Malcolm J. Currie wrote:
> It's been a busy few days at the Quick service. Here's a query just in,
> and I don't know whom to ask. Any comments or suggestions?
>
> >From the limited information given, it sounds to me like a
> cluster-analysis problem, with the emphasis on percolation (well he
> wants to write in Java (-:). It's been a long time since I read about
> Voronoi diagrams in "Algorithms" so I may be completely misunderstanding
> the problem.
>
> Re. FITS in Java, STIL or Tom McGlynn's package comes to mind. If we
> pointed him to the former, we might get some classes useful for TOPCAT.
>
> I am a computing student in my final year at university. It is only
> recently that I have been introduced to the Starlink project via my data
> mining tutor who is also a astrophysicist.
>
> For my dissertation I have chosen to do a project based on finding
> outliers in data. To do this I intend to calculate a voronoi diagram
> for data and calculate the outliers byt the area of the polygon. I.E.
> The points having the greater area are widely dispersed from the main
> group and may be outliers.
>
> The problem I am having is when the outlier becomes a cluster of
> outliers. My method of detection will not detect them based soley of
> the polygon area.
>
> AlthoughI have done research into this area,it has not yielded any
> signifcant results as yet and I was hoping that you may have some
> suggestions that could point me in the right direction,.
> I will be getting the data from FITS tables and will be doing all the
> coding in java.
>
> Malcolm
>
----------------------------------------------------------------------
Dr David S. Berry ([log in to unmask])
STARLINK project | Centre for Astrophysics
(http://www.starlink.ac.uk/) | University of Central Lancashire
Rutherford Appleton Laboratory | PRESTON
DIDCOT | United Kingdom
United Kingdom | PR1 2HE
OX11 0QX Tel. 01772 893733
01257 273192
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