gildor changed the topic of #ocaml to: Discussions about the OCaml programming language | http://caml.inria.fr/ | OCaml 3.12.1 http://bit.ly/nNVIVH
<thelema> http://pastebin.com/Hd5c7YFH -- problem with stream function, `printf`s not printing!
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<technomancy> playing around with oasis a bit and it looks pretty nice.
<technomancy> one thing that I'm not finding clearly explained in the docs is what files are intended to be checked it. perhaps a sample .gitignore would be helpful.
<thelema> technomancy: in theory, just the _oasis file gets checked in to version control
<technomancy> it sounded like there are cases where you might want to modify setup.ml? is that pretty edge-casey?
<thelema> the rest (mainly setup.ml, possibly others) are auto-generated
<thelema> that said, batteries commits setup.ml to its repo because most people don't have oasis
<thelema> modifying setup.ml by hand is not practical or desirable
<technomancy> I see; good to know.
<thelema> if you want extra events at configure, build, etc I think there's a way to hook in shall commands
<thelema> The "Custom" plugin, I think.
<thelema> *shell
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<flux> nokia +11.7%
<flux> oops, wrong channel :)
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<rwmjones> no DV?
<rwmjones> sorry, wrong channel :-(
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<itewsh> please, has anybody any knowledge in neural networks here?
<flux> itewsh, superficial. I used ocaml-onnt recently for a little image recognition task.
<itewsh> flux: well, hmm, could I mp you?
<flux> itewsh, well, go ahead
<adrien> gah
<adrien> lablgtk has GdkKeysyms._Up for the up key, but you can't use that in match case of course
<flux> hmm, my ocaml toplevel refuses to make constructor _A
<flux> (unbound type constructor _A, what does that even mean?)
<adrien> let _VoidSymbol : keysym = 0xFFFFFF
<flux> ahh, so it's a value. right.
<flux> well, you can do always match foo with x when x = _BarBar etc
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<adrien> and when you "match foo with _A -> ...", you actually use a catch-all afaiu
<adrien> right, but I might as well use if then else
<adrien> commit, and sleep
<flux> depends, a match might still be nicer
<adrien> actually I'd probably make an association list
<flux> maybe you can juse List.find with a list like .. right.
<adrien> of any kind of map
<flux> itewsh, btw, have you read if there exists visualization of neural networks? or if it makes any sense..
<flux> I'm thinking perhaps a visualization could tell me which input data it considers 'important'
<flux> (I guess it'd not be visualization in some other contexts, but my data is a bitmap)
<itewsh> flux: you mean... a graph for instance?
<flux> itewsh, well, I guess a graph with the edges as dark as their importance would be one, but it wouldn't work great with a bitmap source
<flux> maybe I can try hooking something with onnt when I find excess time
<itewsh> flux: maybe something like that: http://code.google.com/p/fanntool/
<flux> itewsh, maybe..
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<flux> interesting haskell library that could perhaps be useful for writing functional code for ocaml as well: http://hackage.haskell.org/packages/archive/data-lens/2.0.1/doc/html/Data-Lens-Common.html
<flux> (the point is to provide 'deep accessors' for a functional value)
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<thelema> why is caml_fl_allocate dominating my runtime? Shouldn't I be allocating out of the minor heap which doesn't need a free list, but a ...
<thelema> hmm, is my major_heap_increment too small?
<Anarchos> no idea
<thelema> caml_fl_allocate taking too long means that the GC is working too hard to move live objects from the minor heap to the major heap (finding space in the major heap for them)?
<thelema> I guess you'd need free lists for each major heap section, but maybe having less major heap sections still doesn't help with this.
<thelema> okay, increasing the minor heap size 10x and major_heap_increment about 8x seems to have solved this problem.
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