Hi all,

I am recently using 3dsvm to analyze my data, and wondering if there is any method to prohibit the program to output the model file in the training mode.

Below is my situation.
My general aim is to find a subregion of ROI which includes the most representative voxels in the decoding algorithm
The basic method is:
1) run linear svm analysis on the ROI with 3dsvm;
2) select a subset of voxels which have big abstract weight values;
3) re-run the linear svm analysis in the selected voxels { repeat to Step 1) }.
4) when the selected voxel number reaches a threshold, do the prediction analysis.

3dsvm can deal with this process normally. But here is my concern. In the Step 1) above, 3dsvm is using the training mode. In this mode, there are usually two outputs: one is the model file calculated from the training process, which is supposed to be used for later prediction process; the other one is the weight file containing the distance of each voxel to the hyperplane in the model. In my case, in the recursive loop of Step 1) and 2), what I am caring about is only the weight file, not the model file.
However, the 3dsvm program treats the model file as a necessary output in the training model. Each model file has a rough size of 1 GB. Since I need to run the analysis for different ROIs and subjects, I have to keep writing and removing the model files in my disk. Writing these files consumes a considerable amount of time given the number of ROIs and subjects. So I would like to find a way to prohibit the model output to speed up my analysis.
So here is my question: is there a method for me to prohibit the 3dsvm program to output the model file in the training mode? Or is there any other program that I can use to achieve my intention?

Any advice will be appreciated.

Nan



Edited 1 time(s). Last edit at 10/27/2017 04:51AM by Nan.