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6th International Conference on System Reliability and Safety engineering, SRSE 2024

作者： Xie, Jietao Xie, Yuxiang Wu, Juan Zhai, Jiangtao National University of Defense Technology College of Systems Engineering Changsha China Baicheng Ordnance Test Center of China Test and Training Research Center Jinzhou China Nanjing University of Information Science and Technology School of Electronic and Information Engineering Nanjing China

ISBN: (纸本)9798350356083

Time censoring test statistical schemes are widely utilized in engineering practice for reliability testing and are essential for the design and evaluation of reliability tests. However, the existing literature lacks rigorous mathematical proof regarding the correctness of the calculation methods employed in these schemes, and they often prove inadequate for scenarios with predetermined test durations. In this paper, we provide a comprehensive mathematical derivation to validate the calculation methods specified in GJB 899A for the time censoring test statistical schemes. Furthermore, we propose an optimization scheme specifically designed for fixed test durations, supported by a strict proof and a calculation example to demonstrate its correctness. This work serves as a valuable reference for advancing reliability testing methodologies. © 2024 IEEE.

关键词： Reliability analysis

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DRK: Discriminative Rule-based Knowledge for Relieving Prediction Confusions in Few-shot Relation Extraction 29

DRK: Discriminative Rule-based Knowledge for Relieving Predi...

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29th International Conference on Computational Linguistics, COLING 2022

作者： Wang, Mengru Zheng, Jianming Cai, Fei Shao, Taihua Chen, Honghui Science and Technology on Information Systems Engineering Laboratory National University of Defense Technology China

Few-shot relation extraction aims to identify the relation type between entities in a given text in the low-resource scenario. Albeit much progress, existing meta-learning methods still fall into prediction confusions owing to the limited inference ability over shallow text features. To relieve these confusions, this paper proposes a discriminative rule-based knowledge (DRK) method. Specifically, DRK adopts a logic-aware inference module to ease the word-overlap confusion, which introduces a logic rule to constrain the inference process, thereby avoiding the adverse effect of shallow text features. Also, DRK employs a discrimination finding module to alleviate the entity-type confusion, which explores distinguishable text features via a hierarchical contrastive learning. We conduct extensive experiments on four types of meta tasks and the results show promising improvements from DRK (6.0% accuracy gains on average). Besides, error analyses reveal the word-overlap and entity-type errors are the main courses of mispredictions in few-shot relation extraction. © 2022 Proceedings - International Conference on Computational Linguistics, COLING. All rights reserved.

关键词： Extraction

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Multi-channel quantum parameter estimation

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science China(information sciences) 2022年第10期65卷 53-65页

作者： Liying BAO Bo QI Yabo WANG Daoyi DONG Rebing WU Key Laboratory of Systems and Control Academy of Mathematics and Systems Science Chinese Academy of Sciences University of Chinese Academy of Sciences School of Engineering and Information Technology University of New South Wales Department of Automation Tsinghua University

The aim of quantum metrology is to exploit quantum effects to improve the precision of parameter estimation beyond its classical limit. In this paper, we investigate the quantum parameter estimation problem with multiple channels. It is related but not limited to the following two important and practical quantum metrology problems:(i) Quantum enhanced metrology with control, whose aim is to improve the precision of quantum sensing by utilizing feedback or open-loop control;(ii) Practical quantum metrology where the underlying evolution of quantum probes may change from a unitary dynamics to an open system dynamics,owing to the inevitable decoherence during the quantum sensing operation. For various kinds of quantum multiple channels, the corresponding quantum channel Fisher information is derived. To demonstrate the results, some illustrative examples are given.

关键词： quantum metrology quantum parameter estimation multi-channel quantum Fisher information

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Autonomous sortie scheduling for carrier aircraft fleet under towing mode

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Defence technology(防务技术) 2025年第1期43卷 1-12页

作者： Zhilong Deng Xuanbo Liu Yuqi Dou Xichao Su Haixu Li Lei Wang Xinwei Wang Department of Engineering Mechanics State Key Laboratory of Structural AnalysisOptimization and CAE Software for Industrial EquipmentDalian University of TechnologyDalian116024China School of Mathematical Sciences Dalian University of TechnologyDalian 116024China Naval Aviation University Yantai 264001China China State Shipbuilding Corporation Systems Engineering Research Institute Beijing 100094China Department of Automation School of Information Science and TechnologyTsinghua UniversityBeijing 100084China

Safe and efficient sortie scheduling on the confined flight deck is crucial for maintaining high combat effectiveness of the aircraft *** primary difficulty exactly lies in the spatiotemporal coordination,i.e.,allocation of limited supporting resources and collision-avoidance between heterogeneous dispatch *** this paper,the problem is investigated in the perspective of hybrid flow-shop scheduling problem by synthesizing the precedence,space and resource ***,eight processing procedures are abstracted,where tractors,preparing spots,catapults,and launching are virtualized as *** analyzing the constraints in sortie scheduling,a mixed-integer planning model is *** particular,the constraint on preparing spot occupancy is improved to further enhance the sortie *** basic trajectory library for each dispatch entity is generated and a delayed strategy is integrated to address the collision-avoidance *** efficiently solve the formulated HFSP,which is essentially a combinatorial problem with tightly coupled constraints,a chaos-initialized genetic algorithm is *** solution framework is validated by the simulation environment referring to the Fort-class carrier,exhibiting higher sortie efficiency when compared to existing *** animation of the simulation results is available at ***/video/BV14t421A7Tt/.The study presents a promising supporting technique for autonomous flight deck operation in the foreseeable future,and can be easily extended to other supporting scenarios,e.g.,ammunition delivery and aircraft maintenance.

关键词： Carrier aircraft Autonomous sortie scheduling Resource allocation Collision-avoidance Hybrid flow-shop scheduling problem

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Pindel-TD:A Tandem Duplication Detector Based on A Pattern Growth Approach

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Genomics, Proteomics & Bioinformatics 2024年第1期22卷 99-104页

作者： Xiaofei Yang Gaoyang Zheng Peng Jia Songbo Wang Kai Ye School of Computer Science and Technology Faculty of Electronic and Information EngineeringXi’an Jiaotong UniversityXi’an 710049China Center for Mathematical Medical the First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710061China Genome Institute the First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710061China MOE Key Lab for Intelligent Networks&Networks Security Faculty of Electronic and Information EngineeringXi’an Jiaotong UniversityXi’an 710049China School of Automation Science and Engineering Faculty of Electronic and Information EngineeringXi’an Jiaotong UniversityXi’an 710049China School of Life Science and Technology Xi’an Jiaotong UniversityXi’an 710049China Faculty of Science Leiden UniversityLeiden 2311 EZNetherland

Tandem duplication(TD)is a major type of structural variations(SVs)that plays an important role in novel gene formation and human ***,TDs are often missed or incorrectly classified as insertions by most modern SV detection methods due to the lack of specialized operation on TD-related mutational ***,we developed a TD detection module for the Pindel tool,referred to as Pindel-TD,based on a TD-specific pattern growth ***-TD is capable of detecting TDs with a wide size range at single nucleotide *** simulated and real read data from HG002,we demonstrated that Pindel-TD outperforms other leading methods in terms of precision,recall,F1-score,and ***,by applying Pindel-TD to data generated from the K562 cancer cell line,we identified a TD located at the seventh exon of SAGE1,providing an explanation for its high ***-TD is available for non-commercial use at https://***/xjtu-omics/pindel.

关键词： Tandem duplication Pattern growth Short-read sequencing Structural variation SAGE1

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Single-Stage Spatiotemporal Activity Recognition of Excavators: A Case Study 41

Single-Stage Spatiotemporal Activity Recognition of Excavato...

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41st International Symposium on Automation and Robotics in Construction, ISARC 2024

作者： Ghelmani, Ali Torabi, Ghazaleh Hammad, Amin Chen, Chen Concordia Institute for Information Systems Engineering Concordia University Montreal Canada ZestyAI Montreal Canada School of Civil Engineering and Architecture Zhejiang University of Science and Technology Hangzhou China

ISBN: (纸本)9780645832211

Manual excavator activity monitoring to evaluate their performance and productivity is laborious, time-consuming, and error-prone. To address these problems, many automated computer vision-based frameworks have been developed for the detection of excavators and the classification of their activities. Most of the current methods consist of several separately optimized modules that are applied to the input video sequentially. Recently, single-stage spatiotemporal activity recognition methods are gaining more popularity in the construction community. You Only Watch Once (YOWO) network and its variation (i.e., YOWO53) have proved to be superior to the three-stage approaches for activity recognition of construction workers. This paper investigates the benefits of using YOWO and YOWO53 over the three-stage methods for the activity recognition of excavators, by utilizing a large custom dataset of 1,060 video clips collected from both local construction sites and YouTube, with different camera angles, illuminations, occlusions, weather conditions, and video resolutions. The results demonstrate 88.9 and 88.7% classification accuracy and F1-score, respectively for the YOWO method compared to 70.4% and 69.8% classification accuracy and F1-score for the three-stage method. This indicates the feasibility and benefits of deploying the single-stage methods to near real-time applications. © 2024 ISARC. All Rights Reserved.

关键词： Computer vision

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Algorithms Scheduling Applied to Microservics Architectures: A Survey Study 6

Algorithms Scheduling Applied to Microservics Architectures:...

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6th IEEE International Conference on Cloud Computing and Artificial Intelligence: Technologies and Applications, CloudTech 2023

作者： Qoudhadh, Nadia Zbakh, Mostapha Sciences National School of Computer Science and Systems Analysis Mohammed v University Information Technology and Engineering Rabat Morocco

ISBN: (纸本)9798350303063

Microservice architecture is increasingly replacing monolithic architectures due to its numerous advantages, including ease of deployment, flexibility, and availability. The advent of containerization has further amplified the importance of microservices, making them scalable and portable... Orchestration tools rely on schedulers to control and manage containers running microservices, driving extensive research in search of suitable and optimal scheduling algorithms that minimize costs, reduce overhead, and ensure cluster performance. This paper provides an overview of several popular scheduling algorithms applied by researchers, offering insights into their methodologies through a comparative analysis. We explore the different parameters used and their impact on algorithm performance. Additionally, we delve into the advantages and drawbacks associated with each algorithm, illuminating their strengths and weaknesses. In conclusion, we discuss potential future directions, aiming to identify areas for improvement and innovation in the selection and optimization of scheduling algorithms. © 2023 IEEE.

关键词： Scheduling algorithms

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Intelligent System to Maximize Customer Experience in Restaurants 5

Intelligent System to Maximize Customer Experience in Restau...

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5th International Conference on Advancements in Computing, ICAC 2023

作者： Jayalal, R.U.A. Nimeshika, Y.E. Samarasekara, G.N.N. Wijerathna, G.R.C.I. Gamage, Narmada Gunathilake, Poojani Sri Lanka Institute of Information Technology Department of Computer Systems Engineering Malabe Sri Lanka Sri Lanka Institute of Information Technology Department of Computer Science and Software Engineering Malabe Sri Lanka

ISBN: (纸本)9798350358131

With technological improvements in the restaurant industry, competition is fierce, and a restaurant's success depends on providing excellent and luxury customer satisfaction. The food industry has had to continuously advance with technology in order to adequately satisfy the wants of people leading increasingly luxurious lives. While some restaurants still rely on manpower, the majority are eager to advance with technology in order to improve the standard of their offerings and enhance their customers' experiences. In order to optimize customer satisfaction and experience, this research project intends to investigate the potential of intelligence in the restaurant business. This research has explored intelligent systems such as digital self-service menus for ordering food, augmented reality (AR) visualization systems for customers, the observation of chefs in the kitchen, and the usage of robots to serve meals. This research paper analyzes the advantages of automating restaurant operations and how to do so to enhance customer satisfaction. Overall, this study has the potential to transform the restaurant industry and increase customer satisfaction. © 2023 IEEE.

关键词： Augmented reality

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A Speed-Up Method of Calculating Grasp Quality Measure for Optimal Grasp by a Robot Hand

A Speed-Up Method of Calculating Grasp Quality Measure for O...

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18th IEEE International Conference on Advanced Motion Control, AMC 2024

作者： Watanabe, Kosuke Liu, Congrui Aiyama, Yasumichi Institute of Systems and Information Engineering University of Tsukuba Tsukuba Japan Graduate School of Science and Technology University of Tsukuba Tsukuba Japan

ISBN: (纸本)9798350342819

In this paper, when grasping a target object using a robot hand, we propose the fast algorithm how to calculate the appropriate grasping position. Calculation of grasping stability is essential for calculating the most stable grasping position when grasping an object with a robot hand. Several studies are known regarding calculation of grasp quality measure by which calcu-lated using a convex hull generated by six-dimensional wrench vectors. However, when calculating a convex hull composed by six-dimensional wrench vectors, the amount of calculation increases exponentially as the number of dimensions and points increases. In our proposed method, we used parallel processing to speed up the convex hull algorithm used to calculate the grasp points, and change the grasp points used to calculate grasp stability to speed up the calculation of the optimal grasp position. As a result of performing evaluation calculations on a cube with sides of 50 mm, we achieved a reduction in calculation time of approximately 1/30 to 1/50. © 2024 IEEE.

关键词： Robotic arms

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Dual-photoconductivity in monolayer PtSe_(2) ribbons

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Nano Research 2024年第11期17卷 10189-10195页

作者： Zechen Li Honglin Wang Huaipeng Wang Jing Li Fangzhu Qing Xuesong Li Dan Xie Hongwei Zhu State Key Lab of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University Beijing 100084 China School of Integrated Circuits Beijing National Research Center for Information Science and Technology Tsinghua University Beijing 100084 China State Key Lab of Solid Waste Reuse for Building Materials Beijing Building Materials Academy of Science Research Beijing 100041 China Shenzhen Institute for Advanced Study University of Electronic Science and Technology of China Shenzhen 518110 China

Two-dimensional platinum diselenide (PtSe_(2)) has been explored for applications in visible and infrared photodetectors, owing to its tunable electrical and optoelectronic properties governed by layer-dependent bandgaps. Studies have explored both positive photoconductivity (PPC) and negative photoconductivity (NPC) behaviors in few-layer PtSe_(2) thin films, proposing mechanisms related to gas molecule adsorption. However, these proposed mechanisms, typically based on models with ideal limit structures, often lacked consistency with the structure and scale of polycrystalline thin films employed in actual experiments. Here, photodetectors utilizing monolayer PtSe_(2) ribbons were designed, demonstrating a significant NPC effect upon exposure to visible light in atmospheric conditions, with device resistance increasing to over threefold the initial state. Under vacuum conditions, the device demonstrated PPC characteristics. Density functional theory calculations indicated that oxygen molecules physically adsorbed at the edges of PtSe_(2) ribbons were integral. Laser irradiation prompted the detachment of oxygen molecules from the ribbon’s edges, leading to a decreased carrier concentration in channel conductivity. The abundant edge sites of the ribbons endowed the photodetectors with a pronounced NPC response. This study diverted from traditional multilayer PtSe_(2) films to explore monolayer PtSe_(2) ribbons. These ribbons, as limit structures, offered a more fundamental insight into the intrinsic photoconductivity properties of PtSe_(2). Photodetectors employing PtSe_(2) ribbons presented novel application prospects in low-power photodetection, gas detection, and additional fields.

关键词： platinum diselenide photodetector negative photoconductivity positive photoconductivity photoinduced desorption

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