Yu Hong

Fei Liu

Nan Duan

Qingting Xu

This three-volume set constitutes the refereed proceedings of the 12th National CCF Conference on Natural Language Processing and Chinese Computing, NLPCC 2023, held in Foshan, China, during October 12–15, 2023. The ____ regular papers included in these proceedings were carefully reviewed and selected from 478 submissions. They were organized in topical sections as follows: dialogue systems; fundamentals of NLP; information extraction and knowledge graph; machine learning for NLP; machine translation and multilinguality; multimodality and explainability; NLP applications and text mining; question answering; large language models; summarization and generation; student workshop; and evaluation workshop.

12th National CCF Conference, NLPCC 2023, Foshan, China, October 12–15, 2023, Proceedings, Part III

Natural Language Processing and Chinese Computing

Shuxin Wang

Datong Qin

This book compiles cutting-edge research from the 2025 International Conference on Mechanical Transmission (ICMT 2025), systematically exploring theoretical breakthroughs and industrial innovations in mechanical transmission. The content spans new transmission theories and modeling methods (e.g., digital twin-driven lifecycle design), smart materials (composites/polymers), green manufacturing technologies, and AI-integrated optimization strategies for transmission systems. The book focuses on addressing core challenges such as fatigue reliability, NVH (Noise, Vibration, and Harshness) behavior, and energy efficiency improvement, while showcasing industrial applications of smart gears and bearings, predictive maintenance algorithms, and sustainable lubrication technologies. The content uniquely integrates a "precision-green-intelligent" manufacturing paradigm, offering interdisciplinary solutions. For example, it demonstrates closed-loop optimization of transmission systems from design to testing via digital twin technology and enhances the reliability of industrial robots and wind turbines through AI-driven fault diagnosis. Bridging academia and industry, this book supports the development of efficient, low-noise, and low-carbon next-generation transmission systems for aerospace, new energy vehicles, marine equipment, and beyond.

Selected Contributions from 2025 International Conference on Mechanical Transmission (ICMT 2025), Volume 2

Advances in Mechanical Transmission: Innovations and Applications

Li Zhang

Xinbo Ruan

Xinze Huang

Guoping Zhu

Shiqi Kan

Two-stage single-phase converters, including two-stage single-phase dc-ac inverters and two-stage single-phase PFC converters, are interfacing power converters between dc and ac voltage/current sources, which have been widely applied for dc-ac and ac-dc power conversion. For the two-stage single-phase converter, the ac-side power pulsates at twice the ac voltage frequency, resulting in second harmonic current (SHC) which might flow into the dc-dc converter, the dc voltage source, and dc load. This book clarifies the generation, propagation, and side-effects of this SHC and proposes the SHC reduction control schemes for the dc-dc converter, with different topologies and/or different operating modes, in the single-phase converter. On this basis, the second harmonic current compensator (SHCC) is proposed to compensate the SHC, significantly reducing the dc bus capacitance. In doing so, the electrolytic capacitors, with short lifetimes, are removed from the two-stage single-phase converter, leading to extended system lifetime and enhanced system stability. For having flawless SHC compensation performance, the port-current control schemes are proposed for the SHCC. Additionally, the stability analysis is carried out for the two-stage single-phase converter with the addition of SHCC. This book is a monograph combining theoretical analysis and engineering design, which could not only be a reference book for master students, Ph.D. students, and teachers majoring in power electronics but also be a handbook for the electrical engineers working on the research and development of LED drivers, EV on-board chargers, railway auxiliary power supplies, aviation power supplies, renewable energy generation systems, etc.

Second Harmonic Current Reduction Techniques for Single-Phase Power Electronics Converter Systems

Shuping He

Xiaoli Luan

This book provides robust analysis and synthesis tools for Markovian jump systems in the finite-time domain with specified performances. It explores how these tools can make the systems more applicable to fields such as economic systems, ecological systems and solar thermal central receivers, by limiting system trajectories in the desired bound in a given time interval. Robust Control for Discrete-Time Markovian Jump Systems in the Finite-Time Domain focuses on multiple aspects of finite-time stability and control, including: finite-time H-infinity control; finite-time sliding mode control; finite-time multi-frequency control; finite-time model predictive control; and high-order moment finite-time control for multi-mode systems and also provides many methods and algorithms to solve problems related to Markovian jump systems with simulation examples that illustrate the design procedure and confirm the results of the methods proposed. The thorough discussion of these topics makes the book a useful guide for researchers, industrial engineers and graduate students alike, enabling them systematically to establish the modeling, analysis and synthesis for Markovian jump systems in the finite-time domain.

Robust Control for Discrete-Time Markovian Jump Systems in the Finite-Time Domain

Cheng-Lin Liu

In the context of coupled-coordination control mechanisms, this book focuses on the delay robustness of consensus problems with asynchronously coupled and synchronously coupled consensus algorithms respectively. Moreover, constructive consensus algorithms that tolerate larger communication delays are proposed according to idea of compensation. By providing rigorous theoretical proofs and numerous numerical simulations, it enhances readers’ understanding of the consensus coordination control mechanism of multi-agent systems with communication delays.

Analysis and Design

Consensus Problem of Delayed Linear Multi-agent Systems

Qin Zhang

Yong He

Pengcheng Nie

Internet of things (IoT) is a new type of network that combines communication technology, expanded applications, and physical devices. Among them, agriculture is one of the most important areas in the application of the IoT technology, which has its unique requirements and integration features. Compared to the information technology in traditional agriculture, the agricultural IoT mainly refers to industrialized production and sustainable development under relatively controllable conditions. Agricultural IoT applies sensors, RFID, visual capture terminals and other types of sensing devices to detect and collect site information, and with broad applications in field planting, facility horticulture, livestock and poultry breeding, aquaculture and agricultural product logistics. It utilizes multiple information transmission channels such as wireless sensor networks, telecommunications networks and the internet to achieve reliable transmission of agricultural information at multiple scales and intelligently processes the acquired, massive information. The goals are to achieve (i) optimal control of agricultural production process, (ii) intelligent electronic trading of agricultural products circulation, and (iii) management of systematic logistics, quality and safety traceability. This book focuses on three levels of agricultural IoT network: information perception technology, information transmission technology and application technology.

Technologies and Applications

Agricultural Internet of Things

Fei Liu

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