Lichao Sun

Assistant Professor, Lehigh University


Lecture Information:
  • April 28, 2023
  • 2:00 PM
  • CASE 241 & Zoom

Speaker Bio

Lichao Sun is currently an Assistant Professor in the Department of Computer Science and Engineering at Lehigh University. Before that, he received his Ph.D. degree in Computer Science at University of Illinois, Chicago in 2020, under the supervision of Prof. Philip S. Yu. Further before, he obtained M.S. and B.S. from University of Nebraska Lincoln. His research interests include trustworthy AI and medical AI. He mainly focuses on AI security and privacy, social networks, and natural language processing applications. He has published more than 50 research articles in top conferences and journals like CCS, USENIX-Security, NeurIPS, KDD, ICLR, AAAI, IJCAI, ACL, NAACL, TII, TNNLS, TMC.

Abstract

Recently, ChatGPT, along with DALL-E-2 and Codex,has been gaining significant attention from society. As a result, many individuals have become interested in related resources and are seeking to uncover the background and secrets behind its impressive performance. In fact, ChatGPT and other Generative AI (GAI) techniques belong to the category of Artificial Intelligence Generated Content (AIGC), which involves the creation of digital content, such as images, music, and natural language, through AI models. The goal of AIGC is to make the content creation process more efficient and accessible, allowing for the production of high-quality content at a faster pace. AIGC is achieved by extracting and understanding intent information from instructions provided by human, and generating the content according to its knowledge and the intent information. In recent years, large-scale models have become increasingly important in AIGC as they provide better intent extraction and thus, improved generation results. With the growth of data and the size of the models, the distribution that the model can learn becomes more comprehensive and closer to reality, leading to more realistic and high-quality content generation. This talk reviews on the history of generative models, and basic components, recent advances in AIGC from unimodal interaction and multimodal interaction. In addition, we introduce some recent works about AIGC from our group. Finally, we discuss the existing open problems and future challenges in AIGC.

This event will be webcast live. Join via Mediasite live streaming.