Here are the lists of conferences that willl be held in California, USA:

5th Annual Global Big Data Conference
Date: August 29 – 31 2017
Venue: Santa Clara Convention Center, 5001 Great America Parkway, Santa Clara, CA 95054
Website: http://globalbigdataconference.com/santa-clara/5th-annual-global-big-data-conference/event-85.html

Rock Stars of Machine Learning and Deep Learning
Date: September 12, 2017
Venue: Hilton Santa Clara, 4949 Great America Parkway, Santa Clara, CA 95054
Website: http://events.computer.org/rock-stars-of-deep-learning-machine-learning/?lf1=6031650502c831410112936c63346092

Artificial Intelligence Conference
Date: Sept 17-20, 2017
Venue: Hilton Union Square 333 O’Farrell Street, San Francisco, CA 94102
Website: https://conferences.oreilly.com/artificial-intelligence/ai-ca

Virtual Reality Developers Conference (VRDC) Fall 2017
Date: September 21-22, 2017
Venue: Hilton San Francisco Union Square, 33 O’Farrell Street, San Francisco, CA 94102
Website: http://www.vrdconf.com/aboutvrdc/

The Ai Summit, San Francisco
Date: Sept 27-28, 2017
Venue: The Regency Center
Website: https://theaisummit.com/sanfrancisco/

Emerging Technologies are at the forefront of oracle openworld
Date: October 1–5, 2017
Venue: Moscone Center in San Francisco
Website: https://www.oracle.com/openworld/faq.html#housing

JavaYourNext (Breakthrough)
Date: October 1-5, 2017
Venue: Moscone West, San Francisco, CA
Website: https://www.oracle.com/javaone/index.html

Oracle Code, Developers
Date: October 3, 2017
Venue: Moscone Center West, 800 Howard St at the corner of Fourth & Howard streets San Francisco, CA 94103
Website: https://developer.oracle.com/code/sanfrancisco-fall-2017

AI / IoT / Cybersecurity With The Best Conference
Date: October 14-15, 2017
Venue: Online
Website: http://ai.withthebest.com/

VB Summit 2017, Riding the AI wave
Date: October 23 & 24, 2017
Venue: Claremont Hotel & Resort in Berkeley
Website: http://vbevents.venturebeat.com/VentureBeat2017

Artificial Intelligence & Machine Learning 101
Date: October 23-24, 2017
Venue: Marines’ Memorial Club, San Francisco, CA
Website: http://www.insightxnetwork.com/artificial-intelligence-machine-learning-101.html

Arm Tech Con 2017
Date: Oct 24-26, 2017
Venue: Santa Clara Convention Center
Website: http://www.armtechcon.com/

Kotlin Conference
Date: Nov 2-3, 2017
Venue: Pier 27, The Embarcadero, San Francisco, CA 94111
Website: https://kotlinconf.com/sessions/

Open Data Science Conference West
Date: Nov 2-4, 2017
Venue: Hyatt Regency San Francisco Airport
Website: https://www.odsc.com/california

AI Frontiers Conference, Applied Deep Learning
Date: Nov 3-4, 2017
Venue: Santa Clara Convention Center, California
Website: http://www.aifrontiers.com/

The Machine Learning Conference (MLConf) 2017
Date: November 10, 2017
Venue: Hotel Nikko, 222 Mason Street, San Francisco, CA 94102
Website: http://mlconf.com/events/san-francisco-ca-2/

IoT Tech Expo North America
Date: Nov 29- 30, 2017
Venue: Santa Clara Convention Center, 5001 Great America Pkwy, Santa Clara, CA, 95054
Website: https://www.iotevents.org/

AI Expo North America 2017
Date: Nov 29- 30, 2017
Venue: 5001 Great America Pkwy, Santa Clara, CA 95054
Website: https://www.iotevents.org/event/ai-expo-north-america-2017/

Conference on Neural Information Processing Systems (NIPS)
Date: December 4-9, 2017
Venue: Long Beach Convention Center
Website: https://nips.cc/

The Data Science Salon
Date: Dec 14 2017
Venue: General Assembly Downtown LA, 360 E 2nd St, Los Angeles
Website: https://datascience.salon/la/