Re: Can you solve this interval problem using IEEE-stds 1788

[Walter Mascarenhas <walter.mascarenhas@xxxxxxxxx>]

Mehran,

   I insist: unless you present a viable practical alternative

to what is proposed in the standard your arguments will

have little chance of being heard.

   You should also keep in mind that a standard is supposed

to be a MINIMAL set of requirements, not a compilation of

all conceivable alternatives. The more requirements you

make in a standard, the less likely it will ever be implemented.

   In my opinion, the standard is already too complex and

large as it is. Including new versions for the arithmetic operations

would lead to something completely out of reach for the few souls

who have the endurance to turn these abstractions into real software.

  At least for me, practice matters a lot, and I don't see how you

could get a simple practical solution for the problems you pose.

   Of course, I may be wrong (and it would not be the first time), but

I would like to see practical evidence that this is indeed the case.

   My wife is an experimental molecular biologist and she always

tells me: "ideas are cheap, do the experiment". Along the years

I found little reason to disagree with her.

  So, I ask you again: do the experiment and let us know the result.

           walter.

                 

 

On Fri, Nov 25, 2016 at 7:58 AM, Mehran Mazandarani <me.mazandarani@xxxxxxxxx> wrote:

Dear Walter,
Thank you for message.
I wasn't going to turn the presented software by Oliver down, and also
I have not written a software yet, maybe in the future. But, the key
point I am going to mention is that whether a researcher could handle
such a problem based on the IEEE-stds 1788 or not?
You know, software works based on algorithm and method created by
human. It also may think and learn based on human's algorithm and
methods defined for. Then, if we don't have correct method to deal
with problem, therefore software does not either.

I think we should not only define the standard operators in IEEE-stds
1788, but also define the "standard form".

Warmest regards,

On 11/25/16, Walter Mascarenhas <walter.mascarenhas@xxxxxxxxx> wrote:
> Mehran,
>
>    How would your software solve this problem?
>
>    Would your software have the same general
> purpose as Oliver's, that is, would it work in
> all possible cases? Would it handle
> nonlinear functions for instance?
>
>     Would your software work if you only had
> information (1) ? If it would then I would
> like to see it working.
>
>    What I particularly WOULD NOT  like to
> see is the comparison of a software
> that exists only on your imagination
> with real code, which has been
> tested and used by other people.
>
>    If you can provide such a software then
> I believe your contribution would be
> much appreciated by the community.
>
>   Until you provide this software your
> claims will be questionable.
>
>   So, write it up and let us see the result.
>
>   Oliver has done such effort and I praise
> him for that. If you do something similar
> I will praise you too.
>
>              walter
>
>
>
>
> On Fri, Nov 25, 2016 at 5:35 AM, Mehran Mazandarani <
> me.mazandarani@xxxxxxxxx> wrote:
>
>> Dear Member of IEEE-stds 1788,
>> I was wondering whether one can obtain a unique solution to the
>> following naturally equivalent problems based on IEEE-stds 1788 or
>> not:
>>
>> X is unknown; u and v are interval numbers and known
>>
>> 1) X-u=v
>> 2)X-u-v=0;
>> 3)X-v=u
>> 4)X=u+v
>>
>> solution X=?
>> Please do mention based on which definition of IEEE-stds 1788 the
>> presented problem has a unique solution.
>> Thank you so much for your kind comments in advance.
>> Warmest regards,
>> Mehran
>> --
>> Mehran Mazandarani
>> Department of Electrical Engineering
>> Ferdowsi University of Mashhad, Mashhad, Iran.
>> homepage:http://mehran.mazandarani.fumblog.um.ac.ir/
>> IEEE Member, me.mazandarani@xxxxxxxx
>>
>


--
Mehran Mazandarani
Department of Electrical Engineering
Ferdowsi University of Mashhad, Mashhad, Iran.
homepage:http://mehran.mazandarani.fumblog.um.ac.ir/
IEEE Member, me.mazandarani@xxxxxxxx