The meeting will be held at the Berkeley Institute for Data Science (BIDS), at 190 Doe Library on the University of California, Berkeley campus :
There are many hotels ranging in price and quality in downtown Berkeley that are close to the venue. If you are interested in staying at the Berkeley guest house, please contact Ben Nachman (there are rooms available and it is $145/night). This is at LBNL, so a 15 min walk from BIDS or a similar-length shuttle ride. It has a great view, but is not convenient for experiencing downtown Berkeley.
BIDS is a 10 minute walk from the downtown Berkeley BART stop.