Hello, I'm looking to find a way to detect sentiment analysis  cloud.google.com/natural-language/docs/sentiment-tutorial within submitted survey feedback. 

Anybody have success in doing this?

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As far as I can see, you will need to do this outside of LimeSurvey, perhaps accessing the feedback comments via the API.

- www.limesurvey.org/manual/RemoteControl_2_API
- api.limesurvey.org/classes/remotecontrol...hod_export_responses

Thanks, this can even work in the community edition installed on my own server?

Yes, I assume so. Google code is outside of the scope of this forum.