[std-interval] Re: applications in space science
George.Corliss at marquette.edu
Thu Aug 17 06:39:22 PDT 2006
Great to hear from you. Thanks for putting in your perspective.
Dr. George Corliss
Electrical and Computer Engineering
P.O. Box 1881
1515 W. Wisconsin Ave.
Milwaukee, WI 53201-1881
George.Corliss at Marquette.edu
414-288-6599 (office); 288-4400 (GasDay);
288-6280 (Dept.); 288-5579 (fax)
Office: Haggerty Engineering 296
On 8/17/06 5:23 AM, "Mihály Csaba Markót" <markot at sztaki.hu> wrote:
> Dear Colleagues,
> I would like to add some comments to the discussion as a Technical
> Officer of the mentioned study: (The T.O. title means that I represented
> the ESA side which awarded a research contract in this subject.)
> - The study was intended to be a very initial assessment of the
> applicability of interval ODE solvers for special space flight problems.
> Because of the short contract period (4 months) I did not expect any
> particularly detailed results.
> - The numerical results indeed proved that the tested existing
> general-purpose, "off-the-shelf" interval solvers are not comparable
> with non-interval ones in term of the time of propagation, due to the
> overestimation. Nothing really surprising...
> - Note that the study was done by a team which has primary focus on
> space research and had less previous expertize with interval tools.
> Unfortunately, I was not successful with my plan to award a parallel
> contract also to a primarily interval-oriented team. This way I got a
> report on "what happens in some simple scenarios", but nothing on "why
> the interval solvers fail so earlier" and "how to improve/tune these
> solvers to achieve better results".
> - All in all, I still find this study as a good "ammunition" - not
> because of the achieved results but because we pointed out the need of
> reliable methods in this field and made some initial contacts with the
> space science community - in the hope of further collaborations.
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