Publication： Submissions to PAAP 2021 will be peer reviewed on the basis of technical quality, relevance to conference topics, originality, significance, clarity, etc. Accepted papers will be published in the Conference Proceedings by IEEE, which will be included into IEEE Xplore and submitted to be indexed by Ei Compendex and Scopus after the conference. Special Issues： Extended versions of selected papers will be recommended to special issues of several SCI-indexed international journals including: 1. Journal of Supercomputing; 2. Concurrency and Computation; 3. Computers and Electrical Engineering; 4. Computer Science and Information Systems; 5. Journal of Computer Science and Technology;