The interview process for international students is through skype and has 3-5 professors in the committee. They informed me through email for a skype interview, in accordance with my schedules.

It was a typical PhD interview. During recruitment, we had two days of interviews, a data blitz where some professors spoke about their work, and some tours of campus along with some social gathering with students and a recruitment dinner with presentations. All in all, it was a 3 day process. However from application to acceptance is more like half a year.