Re: AIscm array operations for Scheme

[Jan Wedekind]

I want to do something better than HornetsEye (Ruby library I developed). 
Maybe one can also use it to implement finite element simulations and 
neural networks.

On Thu, 3 Aug 2017, Nala Ginrut wrote:

> Looks promising! What's the plan about AIscm in the future? Is it aiming
> for a library, or something research tool like Sage?
>
> 2017年8月3日 15:23，"Jan Wedekind" <address@hidden>写道：
>
> > Thanks.
> > Currently neither. I have in mind to add some LAPACK bindings (singular
> > value decomposition, eigenvalue decomposition, least squares to begin
> > with). First full native floating point support needs to be implemented.
> > Here is an example of a matrix vector product:
> >
> >     (use-modules (aiscm sequence) (aiscm expression) (aiscm tensor))
> >     (tensor i (sum k (* (get (arr (2 3) (5 7)) i k) (get (arr 11 13) k))))
> >     $3 = #<sequence<int<8,unsigned>>>:
> >     (87 124)
> >
> > Floating point values currently fall back on Scheme objects:
> >
> >     (tensor i (sum k (* (get (arr (2 3) (5 7)) i k) (get (arr 1.1 1.3)
> > k))))
> >     $4 = #<sequence<obj>>:
> >     (8.7 12.4)
> >
> > Note that in this case the array loops are still JIT compiled. Addition
> > and multiplication are handled by JIT compiling callbacks into GNU Guile
> > (scm_plus, scm_product).
> >
> > Regards
> > Jan
> >
> >  On Thu, 3 Aug 2017, Nala Ginrut wrote:
> >
> > Nice work!
> > > Do you use BLAS or MKL for vector operation?
> > >
> > >
> > > 2017年8月3日 04:16，"Jan Wedekind" <address@hidden>写道：
> > >
> > > Hi,
> > > > I have released a new version of AIscm [1]. A Guile extension for
> > > > numerical arrays and tensors. It now supports convolutions [2] and tensor
> > > > operations [3]. There are packages for different versions of Debian and
> > > > Ubuntu. Also thanks to Andrey Rahmatullin's sponsorship, the package is
> > > > part of Debian Testing [4].
> > > >
> > > > Regards
> > > > Jan
> > > >
> > > > [1] http://wedesoft.github.io/aiscm/
> > > > [2] http://wedesoft.github.io/aiscm/convolution.html
> > > > [3] http://wedesoft.github.io/aiscm/operation.html#tensor-operations
> > > > [4] https://tracker.debian.org/pkg/aiscm