I applied online. The process took 1 week. I interviewed at The Johns Hopkins University (Baltimore, NY) in Jan 2016
Interview
I contacted my boss by email and then if he asked me to give a presentation as he thought my background was match. I then gave a talk in the group. then was the Q&A and talked individually with the group members.
I applied online. The process took 3 days. I interviewed at The Johns Hopkins University (Baltimore, MD) in Feb 2018
Interview
It is an onsite interview. Students arrived at Baltimore in the first day. In the morning of the second day, professors gave speech about their research. In the afternoon, students are interviewed by several professors individually. In the evening, students have dinner with current PhD students. In the third day morning, students have brunch with faculty members and PhD students.