2021 2nd International Conference on Information Science, Parallel and Distributed Systems
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Speaker



Keynote speaker I



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Prof. Zhu Quanxin

Distinguished Professor and Doctoral Supervisor, Hunan Normal University, China

Topic: Stabilization of stochastic nonlinear delay systems via the event-triggered feedback control


Abstract: In practical systems, it often happens that some stochastic differential equations (SDEs) are unstable. It is an interesting and challenging question: How to design the control to ensure the stability of SDEs? Different from the traditional works, we use the event-triggered feedback control to solve this problem. Compared with large number of results for discrete-time stochastic systems, only a few results have appeared on the event-triggered control for continuous-time stochastic systems, but the event-triggered control for continuous-time stochastic delay systems is not unsolved. In this talk, we will give a positive answer to this question.




Keynote speaker II


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Prof. Daowen Qiu 

School of Data and Computer Science, Sun yat-sen University

Topic: Quantum exact 1-query complexity


Abstract: Quantum query algorithms are very important problems in quantum computing, for example, Deutsch-Jozsa algorithm, Simon's algorithm, Shor's algorithm, Grover's  algorithm, and HHL algorithm belong to quantum query algorithms. Quantum exact query algorithms mean obtaining the results without error, such as Deutsch-Jozsa algorithm, Simon's algorithm, Grover's algorithm. These algorithms confirm the advantages of quantum computing over classical computing, and are pioneering achievements of quantum computing. In this talk, I would like to present from three aspects:

(I)  We first would like to recall the research background and new progresses of quantum query algorithms, especially focusing on quantum exact query algorithms.

(II)  Then we would introduce the main results we have obtained in recent years: (1) we have discovered all partial symmetric Boolean functions with quantum exact 1-query complexity, and these functions can be computing exactly by Deutsch-Jozsa algorithm. A direct corollary is that we have obtained all total Boolean functions with quantum exact 1-query complexity. (2) we have obtained a sufficient and necessary condition for partial Boolean functions with quantum exact 1-query complexity, and then all total Boolean functions with quantum exact 1-query complexity directly follow, as well. (3) we have constructed a concrete partial Boolean function with quantum exact 1-query complexity and proved this function cannot be computed by Deutsch-Jozsa algorithm.

(III)  Finally, we would like to point out a number of problems for further study.




 Keynote speaker III


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Prof. Ouyang Jianquan  

Xiangtan University, China 

Topic: A framework for secure storage and sharing of personal resumes based on blockchain


Abstract: In view of the current centralized storage of personal resumes on third-party recruitment platforms, insufficient privacy protection, and the inability of individuals to accurately authorize resume downloads, a blockchain-based secure storage and sharing framework for personal resumes is proposed. Through smart contracts and interplanetary file systems (IPFS), symmetric encryption technology and digital signature to protect, verify and share personal resumes. Through secret sharing technology, the random number that generates the symmetric key is divided and stored to improve the security of the encryption key; it is realized through searchable symmetric encryption technology Encrypted resume search function; the framework has the characteristics of decentralization, security, fairness, and non-tamperability, and protects personal privacy information security protection and realizes controllable sharing.