| Office: | ECS 225c |
| Office Hours: | Tuesday & Thursday, 4pm - 5pm |
| Telephone: | (410) 455-3093 |
| E-mail: | chang@umbc.edu |
| Office: | ECS 334 |
| Office Hours: | Monday & Wednesday 11am to 12noon |
| Telephone: | (410) 455-1631 |
| E-mail: | liyiou1@umbc.edu |
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