Dear All,

We are pleased to inform you that we are now distributing a free unlimited OptimJ Edition that includes our fully featured Java based modeling language for optimization along with lpsolve and GLPK solvers

More details on

We wish you a very good software experience with Optimj

Best Regards The Ateji team

asked 13 Jan '11, 14:27

Max's gravatar image

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edited 13 Jan '11, 15:00

Bo%20Jensen's gravatar image

Bo Jensen ♦

MOD : Thanks for the update, I changed the link to be click-able.

(13 Jan '11, 15:02) Bo Jensen ♦

+1 Cool that your software is free with the open source solvers.

(13 Jan '11, 15:07) Bo Jensen ♦

There is always an issue of how people feel about non-question posts. I'm happy to leave this if people don't mind seeing them.

(13 Jan '11, 15:21) Michael Trick ♦♦

I'm happy to see free stuff being advertised here (well, free stuff pertinent to OR).

(13 Jan '11, 15:51) Paul Rubin ♦♦

I think few adds is OK (say once a year or so), being informed about new software is valuable information to me. I think the headline should have "Add :" included and be tagged, though I was not in doubt in this particular case.

(13 Jan '11, 15:55) Bo Jensen ♦

Regarding adds, we also have this in the faq -> "200 Reduced advertising". So if a user has earned 200 points, he can advertise. This is perfectly OK with me, as long as it is not misused, so we do not end up like sci-opt on google groups..

(13 Jan '11, 16:47) Bo Jensen ♦

I don't know how I feel about this. I agree with the "Add:" prefix (just moderate it in if they don't do it themselves). It's interesting to know what is out there, but I prefer it to be informative (original, clear, links), not pure advertising/spam (repetitive, fluffy wishes). If we all start advertising (for example, I repost every blog entry on DP I make here too), it will distract from the questions. I don't think that's a good thing. We got twitter for that, no?

(14 Jan '11, 10:16) Geoffrey De ... ♦

@ Geoffrey, agree no adds for blog post or other disturbing info. This was actually the problem on google sci-opt, which was more or less flooded by strange auto spam. Since we can moderate ourselves we are in a better position to fight this. We can wait and see if it becomes a problem, then we can change things. I think the above post is valuable information, it is a not so well known company with a interesting product. It also got some votes already.

(14 Jan '11, 12:21) Bo Jensen ♦

Although I like Max giving us notice about FLOSS software for OR I don't think a new question is the right way to do that. I should have been added to

(14 Jan '11, 13:30) larrydag 1 ♦

@Larry, there are many other "questions" here, which really are not questions, but some other kind of info. I think the approach here is fine.

(14 Jan '11, 14:14) Bo Jensen ♦

When I ran the INFORMS Computing Society mailing list, we tried to distinguish between blatant "ads" and "product announcements". The latter were expected to be written in an informative and non-horn-tooting style. The distinction was more or less left up to the moderator, but the intention was understood. I like the idea of product announcements (commercial or open source) here, but I don't like the idea of blatant self promotion.

(03 Mar '11, 02:02) Matthew Salt... ♦

I agree with Matt.

(03 Mar '11, 08:37) Bo Jensen ♦
showing 5 of 12 show 7 more comments

@ Larry, Since it is OR related and freeware I don't see the problem. For students like myself it can be useful to play with different languages. OT: I haven't tried OptimJ yet, but their GUI is really nice for visualizing model structures and rapid prototyping. Also freeware, but only for lp_solve.


answered 02 Mar '11, 14:29

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accept rate: 0%

I agree, but I don't care so much if it's free, open source or not. It has to be interesting that's the key, not all commercial related post is evil minded.. I am from the commercial world, so I might be biased.

(02 Mar '11, 15:24) Bo Jensen ♦

@Stitch: For the moment, the free GUI is available for lp_solve only, because it takes time to develop and we also need to do some paying work in order to feed our families. But it is an interesting tool for rapid prototyping (see the screenshots) and we plan to make it available for many more solvers. The idea is that we'll release in priority versions for which there is a demand, so do not hesitate to request it for your favorite solver.


answered 09 Mar '11, 16:29

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Patrick Viry
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Asked: 13 Jan '11, 14:27

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Last updated: 09 Mar '11, 16:29

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