Search found 31 matches

by etc
Sun Nov 22, 2020 1:06 pm
Forum: Discussion about BCI and related topics
Topic: Classifier: Incremental Learning
Replies: 7
Views: 8478

Re: Classifier: Incremental Learning

Dear Thibaut,
after a lot of tests, I succeeded!!!
Thank you very much for the scenario that you built to get this other option to concatenate 2 files!
Ettore
by etc
Thu Nov 05, 2020 10:55 am
Forum: Discussion about BCI and related topics
Topic: Classifier: Incremental Learning
Replies: 7
Views: 8478

Re: Classifier: Incremental Learning

Dear Thibaut,
I put on Filter Box the parametr that you can see in the attached image. The filter box is only for the first file.
Now, the train classifier worked only for the second part of the concatened file... .
Where am I wrong?
Thank you
Ettore
by etc
Thu Nov 05, 2020 9:40 am
Forum: Discussion about BCI and related topics
Topic: Classifier: Incremental Learning
Replies: 7
Views: 8478

Re: Classifier: Incremental Learning

Sorry, dear Thibaut! Give a look to the next my answer!
by etc
Tue Nov 03, 2020 10:29 pm
Forum: Discussion about BCI and related topics
Topic: Classifier: Incremental Learning
Replies: 7
Views: 8478

Re: Classifier: Incremental Learning

Dear Thibaut, I would say to you: THANK YOU!!! Now, I didnt'understand what I have to do when you wrote "You must just remove the stimulation who run the train on all scenario except the last". And I tested the new little scenario, but I didn't remove anything. I only wrote, in your new scenario, th...
by etc
Sat Oct 31, 2020 6:13 pm
Forum: Discussion about BCI and related topics
Topic: Classifier: Incremental Learning
Replies: 7
Views: 8478

Classifier: Incremental Learning

Before to ask my question, congratulation for the new versione 3.0.0!!! I have a question to try to train better the classifier. I think that the argument is known as “incremental learning". Now: -I am on Openvibe 2.2.0 -I run the scenario P300-speller-1-acquisition; the Generic-stream-writer writes...
by etc
Sun Oct 11, 2020 9:33 am
Forum: Discussion about BCI and related topics
Topic: Epoch duration
Replies: 4
Views: 8092

Re: Epoch duration

Thank you very much Thibaut for your answer! Sorry for the delay of my new answer: I had the fever! You remember very well! I am tryng to work with the P300 Speller scenario. The question is: if (for i.e.): 1) in the box "P300 stimulator" (in the P300 Speller acquisition) I indicate a flash duration...
by etc
Sat Oct 03, 2020 10:22 am
Forum: Discussion about BCI and related topics
Topic: Epoch duration
Replies: 4
Views: 8092

Epoch duration

Sorry for my bad English! In this example: Flash duration: 0.1 No flash duration: 0.5 Epoch duration: 1.2 sec., I think that a target-epoch (i.e. with the start from the stimulation target), will get the EEGs for one target stimulation and also for one no-target stimolation. Is this a problem for th...
by etc
Thu Jul 09, 2020 6:43 pm
Forum: Discussion about BCI and related topics
Topic: jaw clenching, artifact removal in P300 scenario.
Replies: 6
Views: 9168

Re: jaw clenching, artifact removal in P300 scenario.

Dear Thibaut, sorry for my bad English! I read your suggestion for me " if you build OpenViBE from source, you can use the box artefact detection with 70 to 100 as parameter" and I installed another Opnevibe from source! The job was very hard...! But I installed the product. But now I dont'see the b...
by etc
Tue Jun 30, 2020 12:53 pm
Forum: Discussion about BCI and related topics
Topic: jaw clenching, artifact removal in P300 scenario.
Replies: 6
Views: 9168

Re: jaw clenching, artifact removal in P300 scenario.

Thank you very much, Thibaut!!!
I think that because my 6-7 questions are related to a lot of boxes and to a lot of terms about P300, it will be more clear to open a new post.
I need some time to try to write in clear English (Sigh!!!) my questions!!!!
Thank you very much!!!
Ettore
by etc
Mon Jun 29, 2020 4:01 pm
Forum: Discussion about BCI and related topics
Topic: jaw clenching, artifact removal in P300 scenario.
Replies: 6
Views: 9168

Re: jaw clenching, artifact removal in P300 scenario.

Thank you, Thibaut! Thank you very much! Two other questions: 1) I am an old programmer (very old...) IBM, Cobol, PL/I, etc... . I have no experience with the new programming languages . Now, I am working with P300-Speller from an Openvibe "Stable Windows Installer". If I try to install Opnevibe by ...
by etc
Thu Jun 25, 2020 10:44 am
Forum: Discussion about BCI and related topics
Topic: jaw clenching, artifact removal in P300 scenario.
Replies: 6
Views: 9168

jaw clenching, artifact removal in P300 scenario.

Sorry for my bad English! I am trying to use the P300 scenarios (P300 Speller); I undertsood that some artifacts, i.e. the jaw clenching artifacts, can give a lot of problems finding P300. But the good news is, perhaps, that the signal can be cleaned because the signal made by jaw clenching or by ey...
by etc
Fri May 15, 2020 3:30 pm
Forum: Scenarios and BCI design
Topic: is it possible to write a word, a sentence with a p300 scenario?
Replies: 4
Views: 9316

Re: is it possible to write a word, a sentence with a p300 scenario?

Dear Fabien, you were very very very gentle!!! You helped me, with the right instructions to "free spell" (sorry for my bad English) and with other very useful suggestions!!! I want to tell you thank you for the solution to the problem ("free spelling") and also for the other suggestions!!! About th...
by etc
Mon May 11, 2020 10:25 am
Forum: Scenarios and BCI design
Topic: is it possible to write a word, a sentence with a p300 scenario?
Replies: 4
Views: 9316

is it possible to write a word, a sentence with a p300 scenario?

Sorry for my bad English! I am dad to a Laura, a disabled girl. I am using Openbci hardware and Openvibe software. I am tryng to learn to use an openvibe scenario BCI (P300 speller); my target is that Laura can write by this scenario an her word, an her sentence. Now, I see that in p300-speller-3-on...
by etc
Sat May 09, 2020 6:29 am
Forum: Discussion about BCI and related topics
Topic: scenario p300 speller - the last row disappears
Replies: 2
Views: 7521

Re: scenario p300 speller - the last row disappears

Thank you very much!
I fixed the problem with a size for the characters more little!!!
Ettore