Search found 53 matches

by mhadji05
Wed Mar 01, 2023 11:24 am
Forum: Boxes
Topic: Sklearn
Replies: 14
Views: 11943

Re: Sklearn

Since OpenViBE 3.3.0, it is possible to give multiple stimulations to the Stimulation Based Epoching box, therefore you could epoch for the Right and Left through the same branch, and as the Sklearn Trainer box also receives the stimulation, it knows what class of signal is coming. Answer: How Stim...
by mhadji05
Wed Mar 01, 2023 10:36 am
Forum: Boxes
Topic: Sklearn
Replies: 14
Views: 11943

Re: Sklearn

Unfortunately the scenario cannot be stopped unless and ONLY if it is terminated with the stop button . By extension, the model.clf is not created. The stimulation listener box doesn't print any information to the console . After the Sklearn training, is there any chance to used in the online scenar...
by mhadji05
Wed Feb 22, 2023 10:31 pm
Forum: Boxes
Topic: Sklearn
Replies: 14
Views: 11943

Re: Sklearn

Dear Thomas Is this what you suggest? https://i.ibb.co/FmwQjFN/Untitled.png The problem in this scenario is that model.clf cannot be saved because Player Controller box is unable to end the scenario. What I'm doing wrong? Also how can I convert the Online scenario? As you can see in the image below ...
by mhadji05
Mon Feb 20, 2023 10:01 am
Forum: Boxes
Topic: Sklearn
Replies: 14
Views: 11943

Re: Sklearn

Please, I am stuck with this error.
If anyone can give me a solution with this error I would appreciate it a lot.

Thanks
by mhadji05
Wed Feb 15, 2023 2:08 pm
Forum: Boxes
Topic: Sklearn
Replies: 14
Views: 11943

Re: Sklearn

Does anyone have any idea why the Signal Merger box crashes?

Please note that with different individual's signals it crashes at different time.

Thanks in advance!
by mhadji05
Wed Feb 08, 2023 10:46 am
Forum: Boxes
Topic: Sklearn
Replies: 14
Views: 11943

Re: Sklearn

Thanks for your response Thomas.

Here is my scenario.

Image

Unfortunately Openvibe return these errors.

Image

How can I solve it?
by mhadji05
Mon Jan 30, 2023 12:12 pm
Forum: Boxes
Topic: Sklearn
Replies: 14
Views: 11943

Re: Sklearn

In continuation of the post above, how can I merge the feature vectors of the left and right hand movement into one, so that I can give them as an input to Trainer Sklearn for classification?
by mhadji05
Wed Jan 25, 2023 5:34 pm
Forum: Boxes
Topic: Sklearn
Replies: 14
Views: 11943

Re: Sklearn

Is there an expert who can tell me how to connect Sklearn to the scenario in the image of the previous post?

I would appreciate it a lot.
by mhadji05
Mon Jan 23, 2023 6:33 pm
Forum: Boxes
Topic: Sklearn
Replies: 14
Views: 11943

Sklearn

Hello all, I m trying to run the MI-CSP scenario with the Sklearn algorithms. As I can see Classifier Trainer box has different inputs than the Trainer Sklearn box . If I press right click I cant see inputs setting to add new input. Is it possible to run the classifier scenario by replace the Classi...
by mhadji05
Wed Jan 11, 2023 3:51 pm
Forum: Box and application development
Topic: MI-Classification Alternative algorithms
Replies: 2
Views: 5126

Re: MI-Classification Alternative algorithms

Hi Thomas Actually, I don't think I can deploy an openvibe box. I wish I could. My question was if the openvibe development team has any plans to develop new algorithms? Please let me know. Alternatively, is there a repository where I can find the algorithms I mentioned above in python (Random Fores...
by mhadji05
Wed Jan 04, 2023 6:47 pm
Forum: Box and application development
Topic: MI-Classification Alternative algorithms
Replies: 2
Views: 5126

MI-Classification Alternative algorithms

Hello all. Happy New Year. I m trying to improve my MI (Left-right hand imagination) system with better classification algorithms. Classifier Trainer box support only LDA, SVM, MLP. I want to try XG Boost, RF, grid search for example. Is there any chance to add more algorithms? If no. How can I do i...
by mhadji05
Wed Jan 04, 2023 6:36 pm
Forum: Scenarios and BCI design
Topic: MI-CSP Alternatives
Replies: 1
Views: 5053

MI-CSP Alternatives

Hello all. Happy new year. I m trying to improve my MI (Left-right hand imagination) system with better feature extraction algorithms. I saw the Regularized CSP Trainer Box and I m wondering what are the best values in the settings to work in MI-CSP scenario. a. Filters per condition. b. Save filter...
by mhadji05
Mon Dec 05, 2022 1:01 pm
Forum: Boxes
Topic: 3D Tomographic Visualization
Replies: 1
Views: 6198

3D Tomographic Visualization

Hello,

I m trying to use the 3D Tomographic Visualization to see the activation of the brain but unfortunately always is green.
Something should be wrong because all the time remaining the same color in the entire 3d model.

How can I make it work?
by mhadji05
Tue Nov 29, 2022 2:42 pm
Forum: Scenarios and BCI design
Topic: Feature extraction in MI-CSP
Replies: 11
Views: 11598

Re: Feature extraction in MI-CSP

Following on from the previous discussion, Thibaut stated the following: "3) You have 2160 features vector (1080 and 1080) with 6 features. (the CSP have reduced the feature number from your signal in fact 19 to 6)" a) Why did CSP reduce the features from 19 to 6 and not more or less than 6? b) What...
by mhadji05
Mon Nov 07, 2022 10:15 am
Forum: Boxes
Topic: Python 3 scripting and LSL
Replies: 1
Views: 5130

Python 3 scripting and LSL

Hello. I m trying to send the simulations via LSL from Python 3 scripting classifier but I fail. When I try the same with classifier processor everything is ok. Please let me know how can I send the stimulations for left and right hand from python classifier via LSL. https://i.ibb.co/2FhxrQP/Untitle...