Prof. Honggang Zhang
Zhejiang University, China
24th May 2022, 4:00pm - 5:00pm (GST)
Title: | Rethinking Modern Communication from Semantic Coding to Semantic Communication |
Abstract: | Modern communications are usually designed to pursue a higher bit-level precision and fewer bits while transmitting a message. We give a rethinking on these two fundamental features and introduce the concept and advantage of semantics that take advantage of a new kind of semantics-aware communication framework, incorporating both the semantic encoding and the semantic communication issues. After analyzing the underlying defects of existing semantics-aware techniques, we establish a confidence-based distillation mechanism for the semantic coding problem and put forward a reinforcement learning (RL)-powered semantic communication solution, which endow a communications system the ability to convey the semantics instead of pursuing the bit level accuracy. On top of these technical contributions, this talk provides a new insight to understand how the semantics are processed and represented in a semantics-aware coding and communication system, and verifies the significant benefits of doing so. Targeting at the next-generation (6G) semantics-aware communication, a number of critical concerns and open challenges such as the information overhead, semantic security and implementation cost are also discussed and envisioned. |
Bio: | Dr. Honggang Zhang is the Chief Managing Editor of Intelligent Computing Journal, a Science Partner Journal jointly established by AAAS (American Association for the Advancement of Science) and Zhejiang Lab (https://spj.sciencemag.org/ |