Implement "Talk to the City" into Decidim

Is your feature request related to a problem? Please describe.
I am wondering how the platform "Brasil Participativo" ( based on Decidim) is currently handling the mass input from the more than 1.4 million citizens without becoming too convoluted or in the need for many volunteers.

I stumbled into this problem because I am looking for ways on how to scale mass online participation for political campaigns and participation processes over here in Germany.

Describe the solution you'd like
Semantic clustering of large-scale survey responses while preserving the diversity of views presented, combined with automatic summaries, visualizations and reports.

Describe alternatives you've considered
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Additional context
https://talktothecity.org/
The tool has been used in during the vTaiwan process in combination with Pol.IS, as described in this report:
https://ai.objectives.institute/blog/talk-to-the-city-an-open-source-ai-tool-to-scale-deliberation

Does this issue could impact on users private data?
If used in combination with Pol.IS, the current lacking API would pose GDPR problems. A team in the netherlands has been optimizing Pol.IS for GDPR. Talk to the City itself has been developed in Taiwan and may thus also not be compliant.

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