Difference between revisions of "Tips"
From SUMOwiki
Jump to navigationJump to search| Line 1: | Line 1: | ||
* The matlab neural network implementation is very slow! Try to avoid using crossvalidation but use test samples instead (see [[FAQ|the FAQ entry]]). | * The matlab neural network implementation is very slow! Try to avoid using crossvalidation but use test samples instead (see [[FAQ|the FAQ entry]]). | ||
* if you use the RBF neural network model type and you get a crash in "newrb" this is an error in the matlab toolbox implementation and not anything we can do about (a workaround is available on [[Contact|request]]). This should be fixed by Matlab 7.5 | * if you use the RBF neural network model type and you get a crash in "newrb" this is an error in the matlab toolbox implementation and not anything we can do about (a workaround is available on [[Contact|request]]). This should be fixed by Matlab 7.5 | ||
| − | * you can switch off adaptive sample selection if you do not specify a <SampleSelector> tag. | + | * you can switch off adaptive sample selection if you do not specify a <SampleSelector> tag. See [[Adaptive Modeling Mode]]. |
* If you want to benchmark your computer for Matlab speed simply run "bench" in matlab | * If you want to benchmark your computer for Matlab speed simply run "bench" in matlab | ||
* By default Matlab only allocates about 117MB memory space for the Java Virtual Machine. If you would like to increase this limit (which you should) please follow the instructions [http://www.mathworks.com/support/solutions/data/1-18I2C.html?solution=1-18I2C here]. See also the general memory instructions [http://www.mathworks.com/support/tech-notes/1100/1106.html here]. | * By default Matlab only allocates about 117MB memory space for the Java Virtual Machine. If you would like to increase this limit (which you should) please follow the instructions [http://www.mathworks.com/support/solutions/data/1-18I2C.html?solution=1-18I2C here]. See also the general memory instructions [http://www.mathworks.com/support/tech-notes/1100/1106.html here]. | ||
Revision as of 16:49, 2 July 2007
- The matlab neural network implementation is very slow! Try to avoid using crossvalidation but use test samples instead (see the FAQ entry).
- if you use the RBF neural network model type and you get a crash in "newrb" this is an error in the matlab toolbox implementation and not anything we can do about (a workaround is available on request). This should be fixed by Matlab 7.5
- you can switch off adaptive sample selection if you do not specify a <SampleSelector> tag. See Adaptive Modeling Mode.
- If you want to benchmark your computer for Matlab speed simply run "bench" in matlab
- By default Matlab only allocates about 117MB memory space for the Java Virtual Machine. If you would like to increase this limit (which you should) please follow the instructions here. See also the general memory instructions here.
