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Autonomous driving: cognitive construction and situation understanding

Science China(Information Sciences) 2019年第8期62卷 75-101页

作者： Shitao CHEN Zhiqiang JIAN yuhao huang Yu CHEN Zhuoli ZHOU Nanning ZHENG Institute of Artificial Intelligence and Robotics Xi'an Jiaotong University National Engineering Laboratory for Visual Information Processing and Applications

Autonomous vehicle is a kind of typical complex artificial intelligence system. In current research of autonomous driving, the most widely adopted technique is to use a basic framework of serial information processing and computations, which consists of four modules: perception, planning, decision-making, and control. However, this framework based on data-driven computing performs low computational efficiency,poor environmental understanding and self-learning ability. A neglected problem has long been how to understand and process environmental perception data from the sensors referring to the cognitive psychology level of the human driving process. The key to solving this problem is to construct a computing model with selective attention and self-learning ability for autonomous driving, which is supposed to possess the mechanism of memorizing, inferring and experiential updating, enabling it to cope with traffic scenarios with high noise, dynamic, and randomness. In addition, for the process of understanding traffic scenes,the efficiency of event-related mechanism is more significant than single-attribute scenario perception ***, an effective self-driving method should not be confined to the traditional computing framework of‘perception, planning, decision-making, and control’. It is necessary to explore a basic computing framework that conforms to human driver’s attention, reasoning, learning, and decision-making mechanism with regard to traffic scenarios and build an autonomous system inspired by biological intelligence. In this article, we review the basic methods and main progress in current data-driven autonomous driving technologies, deeply analyze the limitations and major problems faced by related algorithms. Then, combined with authors’ research, this study discusses how to implement a basic cognitive computing framework of self-driving with selective attention and an event-driven mechanism from the basic viewpoint of cognitive science. It furth

关键词： autonomous driving event-driven mechanism cognitive construction situation understanding intuitive reasoning

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Conversion-type anode chemistry with interfacial compatibility toward Ah-level near-neutral high-voltage zinc ion batteries

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National Science Review 2024年第7期11卷 226-238页

作者： Shan Guo Liping Qin Jia Wu Zhexuan Liu yuhao huang Yiman Xie Guozhao Fang Shuquan Liang School of Materials Science and Engineering Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan ProvinceCentral South University College of Biological and Chemical Engineering Guangxi University of Science and Technology Information and Network Center Central South University

High-voltage aqueous zinc ion batteries（AZIBs） with a high-safety near-neutral electrolyte is of great significance for practical sustainable application; however, they suffer from anode and electrode/electrolyte interfacial incompatibility. Herein, a conversion-type anode chemistry with a low anodic potential, which is guided by the Gibbs free energy change of conversion reaction, was designed for high-voltage near-neutral AZIBs. A reversible conversion reaction between ZnC2O4·2H2O particles and three-dimensional Zn metal networks well-matched in CH3COOLi-based electrolyte was revealed. This mechanism can be universally validated in the battery systems with sodium or iodine ions. More importantly, a cathodic crowded micellar electrolyte with a water confinement effect was proposed in which lies the core for the stability and reversibility of the cathode under an operating platform voltage beyond 2.0 V, obtaining a capacity retention of 95% after 100 cycles. Remarkably, the scientific and technological challenges from the coin cell to Ah-scale battery, sluggish kinetics of the solid-solid electrode reaction, capacity excitation under high loading of active material, and preparation complexities associated with large-area quasi-solid electrolytes,were explored, successfully achieving an 88% capacity retention under high loading of more than 20 mg cm-2and particularly a practical 1.1 Ah-level pouch cell. This work provides a path for designing low-cost, eco-friendly and high-voltage aqueous batteries.

关键词： zinc compound anode conversion reaction voltage regulation interfacial design pouch cell

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Fire in the Ceramic Belly

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China Today 2023年第8期72卷 63-65页

作者： huang yuhao 不详

American artist Denis Naymark pursues his ceramic dream in China’s porcelain capital,*** the year 1295,on his way back to Europe,Marco Polo could not have imagined that the white“porcellana”he took with him from Jingdezhen would make a big hit,causing a sensation and even a frenzy for porcelain among the Europeans,especially the noblemen.

关键词： ceramic sensation noble

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Western Democracy:A Democracy in Distress

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China Today 2023年第5期72卷 38-40页

作者： huang yuhao 不详

Western experts and scholars share their opinions about Western democracy and Chinese democracy at the Second International Forum on Democracy:The Shared Human *** Summit for Democracy 2023 held on March 28 in the *** the host country’s latest try to accuse other countries of being authoritarian,based on its own standard and the hegemonistic *** such an accusation well-grounded?Participants of the Second International Forum on Democracy,which concluded days earlier on March 23 in Beijing,beg to differ,including voices from some Western countries.

关键词： Democracy Forum earlier

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Short Video Craze at a Nursing Home

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China Today 2024年第10期73卷 38-40页

作者： huang yuhao 不详

Short videos shot at a nursing home in the northern Chinese city of Tianjin are aimed at enriching the inner world of its elderly residents and maintaining their optimistic life *** of senior citizens face the camera and deliver lines from a scripted sketch ending with the homespun homily,“There are some parents who always compare their children with other people’s children,but they never think to compare themselves with other parents.”The occasional bloopers of these senior players make fellow actors fall about *** rather than reproving them,the director joins in the *** is not a stage rehearsal or movie set scenario,but a video shooting taking place at a nursing home in the northern Chinese city of *** last April,Jingya Nursing Home,in an effort to enrich the lives of its elderly residents,has taken the new approach of shooting short *** have since attracted nearly a million followers and scored over six million likes on Douyin,the Chinese version of TikTok.

关键词： sketch senior Tianjin

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