Re: [Liberty-eiffel] SoC 2016

[Raphael Mack]

Am Sonntag, den 06.03.2016, 19:44 +0000 schrieb Bernd Schoeller:
> Just to add to this, I am currently implementing a MATRIX class and 
> related linalg function for the other Eiffel compiler. I am trying to 
> build something like numpy, but - of course - with a better design and 
> consistent and powerful interface.
> 
> https://github.com/schoelle/algae

wow, this looks like a huge effort thing - you even do the math in
Eiffel. Of course it is always great to have the library completely in
Eiffel, but on the other side I see the drawback, that we then really
have to understand all the math methods - which is generally much harder
than their use, but yes, interesting and challenging!

> I am not saying that you should use this: it is probably not much 
> further developed than starting from scratch and the two Eiffel 
> compilers do differ quite a bit.

I think we are coming closer together in many aspects. But yes, there
are differences and probably will ever be...

> But perhaps we can have an open exchange on design decisions, as my 
> stuff is also still strong 'work in progress' and I have no clue how I 
> want to implement certain things like the different matrix decomposition 
> functions and linear regression.

This is what I mean above and why I would go for a wrapper of a C
library, but you are perfectly right about the Eiffel sides, here a
similar design could be the way to go and both might profit. Thanks for
your offer for collaboration!

Cheers,
Rapha
> PS: A book that I can very much recommend:
> 
> https://books.google.co.uk/books/about/Matrix_Computations.html?id=5U-l8U3P-VUC
> 
> I found the 3rd edition here for free:
> 
> http://web.mit.edu/ehliu/Public/sclark/Golub%20G.H.,%20Van%20Loan%20C.F.-%20Matrix%20Computations.pdf
> 
> On 06/03/16 18:49, Raphael Mack wrote:
> > Hi Alyona,
> >
> > this is great. We are looking forward to your concrete proposal.
> >
> > For the Scientific Wrappers you should be able to show substantial OO
> > knowledge, maybe you have been involved in some library design and can
> > give references. You should search the web for "what a programmer should
> > know about floating point" and the first 3 results should not confound
> > you and the lectures "linear algebra" or "computational science" shall
> > not be the worst in your memorization. - A very interesting topic by the
> > way - in a world, where math is not fully respected (due to inaccuracy)
> > we are still able to produce meaningful results.
> >
> > Windows support is probably easier, and less OO and Eiffel knowledge is
> > necessary but without C experience it will also get hard. At least one
> > toolkit to create a windows "setup" should directly come to your mind
> > and most of the topics "low level C programming", "network programming",
> > "controlling external processes", "scripting", "cygwin", "ming-w" should
> > mean something for you.
> >
> > But don't be afraid, you will not be alone - your mentor is there to
> > help, and if you are motivated it will be fun, you will have success and
> > make good experiences.
> >
> > It would also be interesting so see how you think that your work can
> > help LibertyEiffel even beyond the concrete work product you have at the
> > end of the summer. (Applies to all GSoC aspirants.)
> >
> > To sum up: Beside a non-negligible amount of time during the summer and
> > some passed exams in a Computer Science (or similar) program the mean
> > prerequisite is motivation. Please show this in your proposal.
> >
> > Cheers,
> > Rapha
> >
> > Am Sonntag, den 06.03.2016, 13:33 +0100 schrieb Alyona Morozov:
> >> Hi everyone,
> >>
> >>
> >> I am Alyona Morozov, pursuing a BSc in Computer Science from the
> >> University of York, England. I am a 2016 GSoC aspirant and would like
> >> to do
> >> a project on LibertyEiffel, developing the Scientific Wrappers or
> >> Windows support project for Liberty Eiffel. I am currently looking at
> >> the code on Github. I am planning on starting work on these proposals
> >> this week and submit to a mentor for early review.
> >>
> >>
> >> I will like to know if there are any prerequisites to contribute to
> >> this project?
> >>
> >> Thank you for your reply,
> >>
> >> Sincerely,
> >> Alyona
> >
> >
> >
> 
>