This is a very comprehensive and insightful report which shows the rapid growth of this sector and challenges that need to be overcome. The AIMA survey does not include any Japanese hedge funds as respondents.
JIAM conducted a survey (link) earlier this year among Japanese asset managers which showed some interesting commonalities with global players albeit the experience by Japanese asset managers in using alternative data has been more recent compared to AIMA respondents some of whom have been using it for more than 5 years.
https://www.aima.org/educate/aima-research/casting-the-net.html