OpenViBE Bug Tracker

View Issue Details Jump to Notes ] Issue History ] Print ]
IDProjectCategoryView StatusDate SubmittedLast Update
0000068openvibe-designerfeature requestpublic2011-02-21 16:012014-04-28 13:56
Reporterfabien.lotte 
Assigned To 
PrioritynormalSeverityminorReproducibilityN/A
StatusacknowledgedResolutionopen 
Platformx86OSLinuxOS VersionUbuntu
Summary0000068: Making the classifier training more user friendly
Description3 points to potentially improve the "friendliness" of the classifier training scheme in open-vibe

1 - It would be nice the have a kind of window, in the designer (and not in the console), that displays, when we train a classifier (box ClassifierTrainer), where we are in the classification process (e.g., "reading/getting data" - "training classifier" - "estimating performances with cross-validation").
Indeed, it is not always convenient to look into the console (for instance we may want to use the designer in full-screen size)

2 - cross-validation (CV) can be very time consuming (it is computationally rather intensive) so it could be nice to make it optional in the classifier training process. Indeed, CV is by nature optional as it is only used to estimate the classifier performances but not to actually train it. It is possible to skip it by setting "1" to the number of cross validation folds to use, but this is not very intuitive/natural to do. A check box "estimating classifier performance with cross-validation (yes/no)" would be more natural/intuitive.

3 - we could also add an option to automatically stop the scenario once the classifier training is finished. it would also be useful in case of a future batch of scenarios with an automated sequence of scenarios (e.g., "data acquisition without feedback scenario" - "classifier training" - "BCI use with feedback")

TagsNo tags attached.
Attached Files

- Relationships

-  Notes
(0000917)
yrenard (administrator)
2011-02-21 16:27

Dear Fabien,

thank you for this bug report

1 - An integration of the console in the designer is currently being developed. It will most likely address this point. About having more informative messages, just turn to Trace level and you will have exactly what you request :)

2 - Indeed, 1 does the trick but is not so intuitive. Problem is if we add a setting to this box, it will break compatibility with previous scenarios. Solution would be to create a new box including this setting and to deprecate (even if still present) the old one. Do you believe this is necessary ?

3 - Actually, the stimulation output connector is exactly for this purpose. Combine it with a Player Controller box and there you go :)

Yann

- Issue History
Date Modified Username Field Change
2011-02-21 16:01 fabien.lotte New Issue
2011-02-21 16:27 yrenard Note Added: 0000917
2011-02-21 16:27 yrenard Assigned To => yrenard
2011-02-21 16:27 yrenard Status new => acknowledged
2014-04-28 13:56 jtlindgr Assigned To yrenard =>


Copyright © 2000 - 2024 MantisBT Team
Powered by Mantis Bugtracker