when I submit continuous data to get a structure, are the data first discretized by Genie or the score calculation is done on the original continuous data?
Is the local score comparison accomplished simply by e.g. score_old<score_new (hence choosing the new model here), or some significance test is performed?
thx
Greedy TT structures learning
-
- Site Admin
- Posts: 1417
- Joined: Mon Nov 26, 2007 5:51 pm
Re: Greedy TT structures learning
If any data column selected for learning is continous, GeNIe will not run GTT - you'll get the "Selected algorithm doesn't support continous columns" message.frito wrote:when I submit continuous data to get a structure, are the data first discretized by Genie or the score calculation is done on the original continuous data?
Re: Greedy TT structures learning
Oh I made a mistake I ment the PC search, and since it uses a cond independence test I suppose genie does NOT discretize the data ?shooltz wrote:If any data column selected for learning is continous, GeNIe will not run GTT - you'll get the "Selected algorithm doesn't support continous columns" message.frito wrote:when I submit continuous data to get a structure, are the data first discretized by Genie or the score calculation is done on the original continuous data?
Also what indep. test it uses Chi^2?
How is it possible it is so incredibely FAST, other PC implementations I used for 100 variables simply did not work at all some resulted in two arcs for 100 variables and other implementations required exponential space(so could not run)?
thx
edit:
I posted this into a new post with appropriate name
http://genie.sis.pitt.edu/forum/viewtopic.php?p=705#705