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1st International Conference on Intelligent Manufacturing and Cloud Computing, ICIMCC 2024

作者： Zhang, Tingshu Tu, Ming Wang, Gefan Chen, Bingyong Zhao, Yishi Shang, Jianga School of Computer Science China University of Geosciences Wuhang China Intelligent Construction System Research Institute China Construction Third Engineering Buerau Group Co.L Wuhang China Engineering Research Center of Natural Resource Information Management and Digital Twin Engineering Software Ministry of Education School of Computer Science China University of Geosciences Wuhang China

ISBN: (纸本)9781643685779

In recent years, the country has released a large number of standard documents related to prefabricated concrete components. Due to the dispersion and complexity of these standards, it is difficult for industry managers to implement them. Therefore, it is imperative to establish a knowledge graph in the field of quality standards for precast concrete components to achieve knowledge management. The construction of knowledge graph first requires named entity recognition, but due to the specificity of the construction industry, entity recognition of the text in this field still suffers from the problems of low recognition accuracy and high resource consumption. Aiming at the low recognition accuracy and high resource consumption in named entity recognition due to the specificity of the industry, this paper proposes a named entity recognition model ALBERT-BiLSTM-SA-CRF for the field of precast concrete component quality standard, which can capture the full text and local feature information more effectively through the combination of BiLSTM and self-attention mechanism, and accurately recognize entities in the standard. Meanwhile, using ALBERT as the word embedding layer can play the role of reducing resource consumption and improving processing efficiency. © 2025 The Authors.

关键词： Knowledge graph

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Design and analysis of GPS satellite-based augmentation system based on low earth orbit constellations 3

Design and analysis of GPS satellite-based augmentation syst...

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2024 3rd International Conference on Aerospace and Control engineering, ICoACE 2024

作者： Yang, Jianlei Jin, Zhengzhen Zheng, Shuaiyong Huang, Shiyong Ma, Guoyu Ji, Shiran Key Laboratory of Satellite Navigation System and Equipment Technology Shijiazhuang050081 China The 54 Research Institute China Electronics Technology Group Shijiazhuang050081 China School of Integrated Circuit Science and Engineering Tianjin University of Technology Tianjin300384 China College of Software Tianjin Normal University Tianjin300387 China

Addressing the need for improved GPS accuracy, especially for low-dynamic users, this study introduces a GPS augmentation system employing Low Earth Orbit (LEO) satellites. We detail the principles of satellite navigation and augmentation and simulate the GPS-LEO constellation to analyse its performance in terms of satellite visibility and Position Dilution of Precision (PDOP). The results demonstrate substantial augmentation in navigation accuracy with the integrated system, as verified by UAV flight experiments. The integration of LEO satellites is anticipated to advance global navigation capabilities, with implications for intelligent transportation, logistics, and precision agriculture. © 2025 Institute of Physics Publishing. All rights reserved.

关键词： Global positioning system

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Enhancing Web Service Anomaly Detection via Fine-grained Multi-modal Association and Frequency Domain Analysis 25

Enhancing Web Service Anomaly Detection via Fine-grained Mul...

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Companion Proceedings of the ACM on Web Conference 2025

作者： Xixuan Yang Xin Huang Chiming Duan Tong Jia Shandong Dong Ying Li Gang Huang Peking University Beijing China Nanyang Normal University Nanyang Henan China Peking University Beijing China and National Key Laboratory of Data Space Technology and System Beijing China Alibaba Group Hangzhou Zhejiang China National Engineering Research Center for Software Engineering Peking University Beijing China

ISBN: (纸本)9798400713316

Anomaly detection is crucial for ensuring the stability and reliability of web service systems. Logs and metrics contain multiple information that can reflect the system's operational state and potential anomalies. Thus, existing anomaly detection methods use logs and metrics to detect web service systems' anomalies through data fusion approaches. They associate logs and metrics using coarse-grained time window alignment and capture the normal patterns of system operation through reconstruction. However, these methods have two issues that limit their performance in anomaly detection. First, due to asynchrony between logs and metrics, coarse-grained time window alignment cannot achieve a precise association between the two modalities. Second, reconstruction-based methods suffer from severe overgeneralization problems, resulting in anomalies being accurately reconstructed. In this paper, we propose a novel anomaly detection method named FFAD to address these two issues. On the one hand, FFAD employs graph-based alignment to mine and extract associations between the modalities from the constructed log-metric relation graph, achieving precise associations between logs and metrics. On the other hand, we improve the model's fit to normal data distributions through Fourier Frequency Focus, thereby enhancing the effectiveness of anomaly detection. We validated the effectiveness of our model on two real-world industrial datasets and one open-source dataset. The results show that our method achieves an average anomaly detection F1-score of 93.6%, representing an 8.8% improvement over previous state-of-the-art methods.

关键词： anomaly detection

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USING SMI TO MODEL SNA NETWORKS

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IEEE COMMUNICATIONS MAGAZINE 1993年第5期31卷 60-67页

作者： FERNANDEZ, J WINKLER, K Research Group Software Developments International USA System integration of network software Digitals Network Engineering group

Some of the techniques used in the development of a management information model (MIM) for Open systems Interconnection (OSI) management of systems network architecture (SNA) resources are examined. The identification of object classes, cataloging of attributes of SNA objects, actions taken on SNA objects, notifications from SNA objects, and SNA class definitions used in the modeling of SNA are discussed. Some problem areas of modeling SNA using a MIM are reviewed.< >

关键词： Peer to peer computing Resource management Data engineering engineering management Data processing Open systems Information management Mechanical factors

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Modeling and evaluation of stochastic Petri nets with TimeNET 4.1

Modeling and evaluation of stochastic Petri nets with TimeNE...

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2012 6th International ICST Conference on Performance Evaluation Methodologies and Tools, VALUETOOLS 2012

作者： Zimmermann, Armin System and Software Engineering Group Ilmenau University of Technology Ilmenau Germany

ISBN: (纸本)9781936968633

The paper presents a major update of the software tool TimeNET, a package for the modeling and performance evaluation of standard and colored stochastic Petri nets. Among its main characteristics are simulation and analysis modules for stationary and transient evaluation of Petri nets including non-exponentially distributed delays, as well as an efficient simulation module for complex colored models. An overview of the tool is given as well as a description of the new features, which are demonstrated using a manufacturing system application example. The tool is available free of charge for non-commercial use. © 2012 ICST.

关键词： Computer aided software engineering

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On totally unimodularity of edge-edge adjacency matrices

On totally unimodularity of edge-edge adjacency matrices

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17th Annual International Conference on Computing and Combinatorics, COCOON 2011

作者： Matsumoto, Yusuke Kamiyama, Naoyuki Imai, Keiko IBM Software Group Japan Department of Information and System Engineering Chuo University Japan

ISBN: (纸本)9783642226847

We consider totally unimodularity for edge-edge adjacency matrices which represent a relationship between two edges in a graph. The matrices appear in integer programming formulations for the minimum maximal matching problem and the edge dominating set problem. We consider a problem of characterizing graphs having totally unimodular matrices as their edge-edge adjacency matrices, and give a necessary and sufficient condition for the characterization. The condition is the first characterization for edge-edge adjacency matrices. © Springer-Verlag Berlin Heidelberg 2011.

关键词： Matrix algebra

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DEMONSTRATING THE SYNERGY BETWEEN CAC AND SCHEDULING IN WIRELESS NETWORKS

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International Journal of Modeling, Simulation, and Scientific Computing 2013年第1期4卷 96-118页

作者： PAOLO PILEGGI GIUSEPPE IAZEOLLA PIETER KRITZINGER Networking Group University of Rome‘Tor Vergata’ Italy Software Engineering and System Performance Modelling Group University of Rome‘Tor Vergata’ Italy Communications Research Group Department of Electrical Engineering University of Cape Town South Africa

Wireless technology is now an integral part of communication network *** their first beginnings,such as connection-oriented General system Mobile networks for voice traffic only and connectionless wireless local area networks for data traffic,new generation wireless networks are connection-oriented and provide differentiated services to the *** the arrival of more sophisticated services and mobility,have arisen the need for Connection Admission Control and traffic scheduling in the network to enhance the quality of experience(QoE)of the user and optimizing the revenue in dynamic workload environments.A great deal of research effort has gone into the study of the performance of one such network standard,namely the IEEE 802.16 *** optimization studies focus on scheduling(a very mature subject in computing)and ignore connection admission(a very mature subject in telephone engineering)or vice *** this paper we claim that one should not study the two in isolation and provide empirical evidence to prove our claim.

关键词： Scheduling connection admission control simulation IEEE 802.16 differentiated services.

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Reliability modelling and evaluation of dynamic systems with stochastic Petri Nets (Tutorial) 13

Reliability modelling and evaluation of dynamic systems with...

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7th International Conference on Performance Evaluation Methodologies and Tools, VALUETOOLS 2013

作者： Zimmermann, Armin Ilmenau University of Technology System and Software Engineering Group Helmholtzplatz 5 IlmenauD-98693 Germany

ISBN: (纸本)9781936968480

This tutorial covers motivation, use, and advantages of stochastic Petri nets as a tool for reliability evaluation of complex systems. Rare-event simulation techniques are demonstrated, which are applicable to a wide class of reliability problems. While this approach is known in the academic world, is has not yet been adopted much in industrial applications despite its apparent benefits. Additional triggers for this tutorial are advances in rare-event simulation for this model class as well as the recent standard IEC62551 for dependability evaluation with Petri nets. Example case studies and tool support is demonstrated. Copyright © 2013 ICST.

关键词： Petri nets

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Towards automatic reconfiguration of aviation software systems

Towards automatic reconfiguration of aviation software syste...

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35th Annual IEEE International Computer software and Applications Conference Workshops, COMPSACW 2011

作者： Burger, Stefan Hummel, Oliver Sensor and System Integration EADS Innovation Works Munich Germany Software Engineering Group University of Mannheim Germany

ISBN: (纸本)9780769544595

The development of embedded systems is currently experiencing a fundamental shift towards integrating more and more heterogeneous system building blocks into ever more complex composite systems. The aviation industry is especially hit by this development and suffers from a number of additional challenges such as long system life-times that are often significantly longer than those of individual microprocessors and other embedded devices. Since aviation software development is still often driven by the ongoing integration of new hardware it is about time to focus on a better componentization of avionic software systems. The new software architecture proposed in this paper is not only more maintainable than existing systems, it also allows for a semiautomatic integration of new hardware devices based on an automatic configuration and adaptation mechanism. As a result, airplane manufactures will be able to significantly reduce the (down) times required to integrate new software and therewith hardware into the cabin of an airliner. © 2011 IEEE.

关键词： software design

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Indoor localization estimation techniques in wireless sensor network: A review

Indoor localization estimation techniques in wireless sensor...

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2018 IEEE International Conference on Automatic Control and Intelligent systems, I2CACIS 2018

作者： Shahkhir Mozamir, M. Bakar, Rohani Binti Abu Din, Wan Isni Soffiah Wan Faculty of Computer Systems and Software Engineering Universiti Malaysia Pahang Kuantan Pahang Malaysia Soft Computing and Intelligent System Research Group Faculty of Computer Systems and Software Engineering Universiti Malaysia Pahang Kuantan Pahang Malaysia System Network and Security Research Group Faculty of Computer Systems and Software Engineering Universiti Malaysia Pahang Kuantan Pahang Malaysia

ISBN: (纸本)9781538656549

Recently, Wireless Sensor Network (WSN) are an important research area because of its real-time response, accurate, improved node capability, low in cost and simple infrastructure. Because of the huge number of sensor nodes, the main issue of WSN is the estimation of their location. The nodes which are deployed may not be known their own position. In localization, different techniques are used for estimation to gain the coordinate of the node. In this paper, we reviewed on the current techniques in estimation phase for indoor localization from 2013 to 2018. This reviewed will be useful for the researchers to implement the techniques for estimation phase to increase the accuracy. ©2018 IEEE.

关键词： Sensor nodes

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