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Aspect-Opinion Correlation Aware and Knowledge-Expansion Few Shot Cross-Domain Sentiment Classification

IEEE TRANSACTIONS ON AFFECTIVE COMPUTING 2022年第4期13卷 1691-1704页

作者： Ren, Haopeng Cai, Yi Zeng, Yushi Ye, Jinghui Leung, Ho-fung Li, Qing South China Univ Technol Sch Software Engn Guangzhou 510650 Peoples R China SCUT Key Lab Big Data & Intelligent Robot Guangzhou 510335 Peoples R China Pazhou Lab Guangzhou 510335 Peoples R China Chinese Univ Hong Kong Dept Comp Sci & Engn Hong Kong Peoples R China Hong Kong Polytech Univ Dept Comp Hong Kong Peoples R China

Cross-domain sentiment analysis has recently attracted significant attention, which can effectively alleviate the problem of lacking large-scale labeled data for deep neural network based methods. However, most of the existing cross-domain sentiment classification models neglect the domain-specific features, which limits their performance especially when the domain discrepancy becomes larger. Meanwhile, the relations between the aspect and opinion terms cannot be effectively modeled and thus the sentiment transfer error problem is suffered in the existing unsupervised domain-adaptation methods. To address these two issues, we propose an aspect-opinion correlation aware and knowledge-expansion few shot cross-domain sentiment classification model. Sentiment classification can be effectively conducted with only a few support instances of the target domain. Extensive experiments are conducted and the experimental results show the effectiveness of our proposed model.

关键词： Cross domain sentiment analysis knowledge graph few-shot learning

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Detent Force Reduction in Permanent Magnet Synchronous Linear Motor Based on Arc-teeth

Detent Force Reduction in Permanent Magnet Synchronous Linea...

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Chinese Control and Decision Conference, CCDC

作者： Yuxin Shen Rong Guo Hongyan Ma School of Electrical and Information Engineering Beijing University of Civil Engineering and Architecture Beijing China School of Electrical and Information Engineering Institute of Distributed Energy Storage Safety Big Data Beijing Key Laboratory of Intelligent of Processing for Building Big Data Beijing University of Civil Engineering and Architecture Beijing China

ISBN: (数字)9798350387780

ISBN: (纸本)9798350387797

Permanent Magnet Synchronous Linear Motors (PMSLM) has the advantages of high thrust force density, high acceleration, high speed, high precision, high efficiency etc. However, the detent force of PMSLM is an inevitable problem, caused by their inherent end-disconnection structure. Excessive detent force will cause thrust fluctuations and reduce the system’s stability. To resolve the above problems, an improved PMSLM structure based on arc-teeth is proposed to reduce detent force. Firstly, the motor permeability distribution is analyzed at different moments based on the flux-tube method, and the expression of detent force is derived. Second, the finite element model of PMSLM is established to optimize the height of arc-teeth, and the optimal structural parameters of the motor is obtained. Finally, the performance advantages of the proposed PMSLM are verified by comparing with traditional linear motor.

关键词： Fluctuations Shape Force Stators Motors Harmonic analysis Permanent magnets

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T3: Multi-modal Tailless Triple-Flapping-Wing robot for Efficient Aerial and Terrestrial Locomotion

arXiv

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arXiv 2025年

作者： Xu, Xiangyu Zheng, Zhi Wang, Jin Chen, Yikai Huang, Jingyang Wu, Ruixin Yu, Huan Lu, Guodong The State Key Laboratory of Fluid Power and Mechatronic Systems School of Mechanical Engineering Zhejiang University Hangzhou310058 China Zhejiang Key Laboratory of Industrial Big Data and Robot Intelligent Systems Zhejiang University Hangzhou310058 China Robotics Research Center of Yuyao City Ningbo315400 China College of Control Science and Engineering Zhejiang University Hangzhou310027 China

Flapping-wing robots offer great versatility;however, achieving efficient multi-modal locomotion remains challenging. This paper presents the design, modeling, and experimentation of T3, a novel tailless flapping-wing robot with three pairs of independently actuated wings. Inspired by juvenile water striders, T3 incorporates bio-inspired elastic passive legs that effectively transmit vibrations generated during wing flapping, enabling ground movement without additional motors. This novel mechanism facilitates efficient multi-modal locomotion while minimizing actuator usage, reducing complexity, and enhancing performance. An SE(3)-based controller ensures precise trajectory tracking and seamless mode transition. To validate T3’s effectiveness, we developed a fully functional prototype and conducted targeted modeling, real-world experiments, and benchmark comparisons. The results demonstrate the robot’s and controller’s outstanding performance, underscoring the potential of multi-modal flapping-wing technologies for future aerial-ground robotic applications. Copyright © 2025, The Authors. All rights reserved.

关键词： Antenna grounds

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Research on Optimization Algorithm for Fire Emergency Evacuation in Experimental Buildings of Universities

Research on Optimization Algorithm for Fire Emergency Evacua...

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Chinese Control and Decision Conference, CCDC

作者： Xincheng Han Hongyan Ma Wei He Shun Wang School of Electrical and Information Engineering Beijing University of Civil Engineering and Architecture Beijing China School of Electrical and Information Engineering Institute of Distributed Energy Storage Safety Big Data Beijing Key Laboratory of Intelligent Processing for Building Big Data Beijing University of Civil Engineering and Architecture Beijing China

ISBN: (数字)9798350387780

ISBN: (纸本)9798350387797

College laboratory buildings have dense population, numerous electrical devices, and high fire risk. However, the existing evacuation A* algorithm has the disadvantages of long time and poor adaptability. In order to effectively solve the problems of long evacuation simulation time, low efficiency, and inability to change evacuation directions according to fire conditions in college laboratory buildings, this paper proposes an improved A* algorithm. This paper improves the heuristic function in the A* algorithm by introducing a logarithmic decay factor. By changing the weight of the estimated cost, it reduces the number of unnecessary search nodes and steers the search algorithm in the correct direction, thereby improving search efficiency. Secondly, it introduces a bidirectional A* search strategy to reduce search nodes and improve the efficiency of the algorithm. Simulation results show that the improved A* algorithm has fewer traversed nodes, shorter search paths, and higher search efficiency, which verifies the effectiveness and feasibility of the improved A* algorithm in experimental building fire evacuation. This study provides a solution for fire evacuation in college laboratory buildings.

关键词： Heuristic algorithms Simulation Buildings Sociology Laboratories Search problems Path planning

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Smaller and Faster robotic Grasp Detection Model via Knowledge Distillation and Unequal Feature Encoding

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IEEE robotICS AND AUTOMATION LETTERS 2024年第8期9卷 7206-7213页

作者： Nie, Hong Zhao, Zhou Chen, Lu Lu, Zhenyu Li, Zhuomao Yang, Jing Shanxi Univ Inst Big Data Sci & Ind Sch Comp & Informat Technol Taiyuan 030006 Peoples R China Shanxi Univ Minist Educ Key Lab Computat Intelligence & Chinese Informat P Taiyuan 030006 Peoples R China Cent China Normal Univ Sch Comp Sci Wuhan 430079 Peoples R China Hubei Engn Res Ctr Intelligent Detect & Identifica Wuhan 430079 Peoples R China Univ West England Bristol Robot Lab Bristol BS16 1QY England Shanxi Univ Sch Automat & Software Engn Taiyuan 030031 Peoples R China

In order to achieve higher accuracy, the complexity of grasp detection network increases accordingly with complicated model structures and tremendous parameters. Although various light-weight strategies are adopted, directly designing the compact network can be sub-optimal and difficult to strike the balance between accuracy and model size. To solve this problem, we explore a more efficient grasp detection model from two aspects: elaborately designing a light-weight network and performing knowledge distillation on the designed network. Specifically, based on the designed light-weight backbone, the features from RGB and D images with unequal effective grasping information rates are fully utilized and the information compensation strategies are adopted to make the model small enough while maintaining its accuracy. Then, the grasping features contained in the large teacher model are adaptively and effectively learned by our proposed method via knowledge distillation. Experimental results indicate that the proposed method is able to achieve comparable performance (98.9%, 93.1%, 82.3%, and 90.0% on Cornell, Jacquard, GraspNet, and MultiObj datasets, respectively) with more complicate models while reducing the parameters from MBs to KBs. Real-world robotic grasping experiment in an embedded AI computing device also prove the effectiveness of this approach.

关键词： robotic grasping light-weight modelling knowledge distillation generative network attention mechanism

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Specific Design and Implementation of the Characteristic Species database in Wuling Mountain Area

Specific Design and Implementation of the Characteristic Spe...

引用

Information Technology, Communication Ecosystem and Management (ITCEM), International Conference on

作者： Shaowei Deng Yujun Yang Yimei Yang College of Computer and Artificial Intelligence(Software College) Huaihua University Huaihua Hunan China Key Laboratory of Wuling-Mountain Health Big Data Intelligent Processing and Application in Hunan Province Universities Huaihua Hunan China Key Laboratory of Intelligent Control Technology for Wuling-Mountain Ecological Agriculture in Hunan Province

ISBN: (数字)9798331542696

ISBN: (纸本)9798331542702

This article aims to design and implement a database system for characteristic species in the Wuling Mountain area. The system will collect, organize, store, and analyze information on characteristic species in the Wuling Mountain area, providing data support for ecological research, biodiversity conservation, agricultural production, and other fields. This article will provide a detailed introduction to database requirements analysis, data model design, database structure implementation, data security management, and system testing and optimization.

关键词： System testing data security Ecosystems Production database systems data models Biodiversity Information technology Optimization

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SCALABLE ATTRIBUTION OF ADVERSARIAL ATTACKS VIA MULTI-TASK LEARNING

arXiv

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arXiv 2023年

作者： Guo, Zhongyi Han, Keji Ge, Yao Ji, Wei Li, Yun Nanjing University of Posts and Telecommunications Nanjing China Jiangsu Key Laboratory of Big Data Security and Intelligent Processing Nanjing University of Posts and Telecommunications Nanjing China

Deep neural networks (DNNs) can be easily fooled by adversarial attacks during inference phase when attackers add imperceptible perturbations to original examples, i.e., adversarial examples. Many works focus on adversarial detection and adversarial training to defend against adversarial attacks. However, few works explore the tool-chains behind adversarial examples, which can help defenders to seize the clues about the originator of the attack, their goals, and provide insight into the most effective defense algorithm against corresponding attacks. With such a gap, it is necessary to develop techniques that can recognize tool-chains that are leveraged to generate the adversarial examples, which is called Adversarial Attribution Problem (AAP). In this paper, AAP is defined as the recognition of three signatures, i.e., attack algorithm, victim model and hyperparameter. Current works transfer AAP into single label classification task and ignore the relationship between these signatures. The former will meet combination explosion problem as the number of signatures is increasing. The latter dictates that we cannot treat AAP simply as a single task problem. We first conduct some experiments to validate the attributability of adversarial examples. Furthermore, we propose a multi-task learning framework named Multi-Task Adversarial Attribution (MTAA) to recognize the three signatures simultaneously. MTAA contains perturbation extraction module, adversarial-only extraction module and classification and regression module. It takes the relationship between attack algorithm and corresponding hyperparameter into account and uses the uncertainty weighted loss to adjust the weights of three recognition tasks. The experimental results on MNIST and ImageNet show the feasibility and scalability of the proposed framework as well as its effectiveness in dealing with false alarms. Copyright © 2023, The Authors. All rights reserved.

关键词： Deep neural networks

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Air quality prediction based on ICEEMDAN-SSA-LSTM

Air quality prediction based on ICEEMDAN-SSA-LSTM

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Chinese Control and Decision Conference, CCDC

作者： Yanling Qin Hongyan Ma Wei He School of Electrical and Information Engineering Beijing University of Civil Engineering and Architecture Beijing China School of Electrical and Information Engineering Institute of Distributed Energy Storage Safety Big Data Beijing Key Laboratory of Intelligent Processing for Building Big Data Beijing University of Civil Engineering and Architecture Beijing China

ISBN: (数字)9798350387780

ISBN: (纸本)9798350387797

To address the problem that the Air Quality Index (AQI) is difficult to predict, a prediction model based on Improved Complete Ensemble Empirical Mode Decomposition with Adaptive Noise (ICEEMDAN), Sparrow Search Algorithm (SSA), and Long Short-Term Memory (LSTM) is proposed. First, the AQI sequence was decomposed by ICEEMDAN. Second, the initial learning rate, max training epoch and the number of hidden layers of the LSTM model are optimized by the SSA algorithm to establish the SSA-LSTM model. Last, the results decomposed were imported into the SSA-LSTM model to predict AQI. Compared with the prediction results of the LSTM, CEEMD-LSTM, and CEEMDAN-SSA-LSTM model, the accuracy (measured by correlation coefficients) of the CEEMDAN-SSA-LSTM is 98%. The result confirmed that the ICEEMDAN-SSA-LSTM can obtaining an improvement of the correlation coefficients and reduce the mean square error, which is valuable for engineering applications.

关键词： Training Correlation coefficient Adaptation models Accuracy Empirical mode decomposition Atmospheric modeling Predictive models

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Consistent representation joint adaptive adjustment for incremental zero-shot learning

引用

NEUROCOMPUTING 2024年 606卷

作者： Niu, Chang Shang, Junyuan Zhou, Zhiheng Yang, Junmei South China Univ Technol Sch Elect & Informat Engn Guangzhou Guangdong Peoples R China Foshan Univ Sch Comp Sci & Artificial Intelligence Foshan Guangdong Peoples R China South China Univ Technol Key Lab Big Data & Intelligent Robot Minist Educ Guangzhou Peoples R China

Zero-shot learning aims to recognize objects from novel concepts through the model trained on seen class data and assisted by the semantic descriptions. Though it breaks the serious reliance on training data, it still fails to deal with the sequential streaming data in the open world. In this paper, we focus on the incremental zero-shot learning (IZSL) where the seen data arrives in the form of task sequence. In each incremental task, we only have access to the seen data of current task. The IZSL methods aim to depict the characteristics of current seen classes and avoid forgetting the previous ones, in the meantime, learn to generalize to the unseen classes. We summarize the challenges in IZSL as semantic drift which is further divided into task-recency bias and seen-class bias. To solve these issues, we propose a novel IZSL method termed as CRAA. Specifically, CRAA constructs consistent representations with satisfactory discrimination and generalization for all the seen and unseen classes. Based on these representations, CRAA learns a prototype classifier with a novel adaptive adjustment strategy to alleviate the task-recency bias and seen-class bias. Note that CRAA only needs a limited memory footprint to store the fixed scale model, and meets the demands of both memory restriction and data security in industry. We have conducted extensive experiments to evaluate our method on three widely used datasets. The results prove our method is superior to all the compared methods with significant improvements. Code is available at: https://***/changniu54/CRAA-Master.

关键词： Zero-shot learning Incremental learning Continual learning Object recognition Image classification

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Large-Scale Fingerprint data Retrieval Based C-Means Clustering Model

Large-Scale Fingerprint Data Retrieval Based C-Means Cluster...

引用

Information Technology: IoT and Smart City (ITIoTSC), International Conference on

作者： Decai Wang Xia Chang Weibing Zhang Yuelin Gao The Key Laboratory of Intelligent Information and Big Data Processing of Ningxia Province Yinchuan China School of Math and Information Science North Minzu University Yinchuan China

ISBN: (数字)9798350328349

ISBN: (纸本)9798350328356

In the field of biometric identification, fingerprints, as one of the most unique and persistent biometric features, are widely used for identification. With the popularity of fingerprint recognition in society, how to quickly retrieval fingerprints is a challenging task in large-scale databases. In order to ensure the accuracy of fingerprints retrieval , we propose a new retrieval model based on minutia features. We introduce fuzzy C-means clustering algorithm and Dijkstra *** C-means clustering is used to extract the detail point features in the fingerprint, Dijkstra algorithm to solve the shortest path of the minutia *** number of features and the shortest path distance are compared to determine whether the fingerprints are the same. In this way, our method can achieve fast retrieval. In addition, we conducted extensive experiments on a large-scale datasets and tested the correctness of the experiments by different filtering levels to demonstrate the superiority of our method for fingerprint retrieval.

关键词： Accuracy Filtering databases Smart cities Filtration Clustering algorithms Fingerprint recognition

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