SoICT 2021 is an international symposium covering four significant research areas that include AI Foundations and Big Data, Communication Networking, Image and Natural Language Processing, Digital Technology trends. Following the past successful symposium SoICT 2019, which received submissions from 28 countries, the 11th International Symposium on Information and Communication Technology (SoICT 2021) will be held in Hanoi, Vietnam. The symposium aims to provide an academic forum for researchers and graduate students to share their latest research findings and identify future computer science challenges . The symposium will include tutorials and keynotes given by world-class speakers.