1. Department of Computer Science, University of British Columbia, Canada
2. Human Machine Interaction Lab, Huawei Central Research, China
3. Human Machine Interaction Lab, Huawei Technologies, Canada
4. Computer Science, University of British Columbia, Canada
5. Human Machine Interaction Lab, Huawei, Canada
6. Computer Science, University of Toronto, Canada
7. Human Machine Interaction Lab, Huawei Canada, Canada
8. Computer Science, University of British Columbia (Okanagan), Canada
9. Human-Machine Interaction Lab, Huawei Canada, Canada