I just wrote a technical paper about how to setup up mix of centralised and decentralised peer to peer trading platform.

1. Automatic multi attribute based auction system
2. Data Driven Machine learning based Risk Mitigation
3. Decentralised settlement.

I am working on an exchange which can reduce the overhead these exchanges are having right now.

Thanks

Let me know your feedback.

https://github.com/upscaletech/localbch.shop/wiki/Technical-Paper