Whether its Mindset Mapping or Scientific Collaboration Mapping, if you want to know what someone believes, then the best way is to ask them directly.
Be open, be transparent, be truthful in what you seek, and the chances are that they will reciprocate and reward your request - that's what's behind our success.
Sure you can use neurolinguistics and other dark arts to analyse everything ever written by an Expert and from that arrive at some sort of conclusion about the Expert.
And we've tried such tools, including the seriously heavy-hitting ones that are used to detect academic plagiarism in real-time.
But you can spend lots of time & money to analyse "from afar" and you still don't really know what the KOL actually thinks/believes/practices, or how they want to collaborate with you.
The powerful research instruments we use, developed and refined over many years, are built around transparency and trust. And if we find a better way, we'll gladly use that as well.