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Oriented Bounding Box Object Detection Model Based on Improved YOLOv8
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作者 ZHAO Xin-kang SI Zhan-jun 《印刷与数字媒体技术研究》 CAS 北大核心 2024年第4期67-75,114,共10页
In the study of oriented bounding boxes(OBB)object detection in high-resolution remote sensing images,the problem of missed and wrong detection of small targets occurs because the targets are too small and have differ... In the study of oriented bounding boxes(OBB)object detection in high-resolution remote sensing images,the problem of missed and wrong detection of small targets occurs because the targets are too small and have different orientations.Existing OBB object detection for remote sensing images,although making good progress,mainly focuses on directional modeling,while less consideration is given to the size of the object as well as the problem of missed detection.In this study,a method based on improved YOLOv8 was proposed for detecting oriented objects in remote sensing images,which can improve the detection precision of oriented objects in remote sensing images.Firstly,the ResCBAMG module was innovatively designed,which could better extract channel and spatial correlation information.Secondly,the innovative top-down feature fusion layer network structure was proposed in conjunction with the Efficient Channel Attention(ECA)attention module,which helped to capture inter-local cross-channel interaction information appropriately.Finally,we introduced an innovative ResCBAMG module between the different C2f modules and detection heads of the bottom-up feature fusion layer.This innovative structure helped the model to better focus on the target area.The precision and robustness of oriented target detection were also improved.Experimental results on the DOTA-v1.5 dataset showed that the detection Precision,mAP@0.5,and mAP@0.5:0.95 metrics of the improved model are better compared to the original model.This improvement is effective in detecting small targets and complex scenes. 展开更多
关键词 Remote sensing image Oriented bounding boxes object detection Small target detection YOLOv8
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Investment Objectives and Priorities of China Petroleum Industry Oriented to 2000
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作者 Peng Qing(Beijing Petroleum Managers Training Institute)Subjects: Investment, Decision analysis, External Cooperation 《China Oil & Gas》 CAS 1998年第2期70-72,共3页
关键词 2010 Investment objectives and Priorities of China Petroleum Industry Oriented to 2000
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Method of Establishing Object-Oriented System Structure for Decision Support System 被引量:2
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作者 曹元大 胡军 管春 《Journal of Beijing Institute of Technology》 EI CAS 2002年第3期311-315,共5页
In order to solve existing problems about the method of establishing traditional system structure of decision support system(DSS), O S chart is applied to describe object oriented system structure of general DSS, an... In order to solve existing problems about the method of establishing traditional system structure of decision support system(DSS), O S chart is applied to describe object oriented system structure of general DSS, and a new method of eight specific steps is proposed to establish object oriented system structure of DSS by using the method of O S chart, which is applied successfully to the development of the DSS for the energy system ecology engineering research of the Wangheqiu country. Supplying many scientific effective computing models, decision support ways and a lot of accurate reliable decision data, the DSS plays a critical part in helping engineering researchers to make correct decisions. Because the period for developing the DSS is relatively shorter, the new way improves the efficiency of establishing DSS greatly. It also makes the DSS of system structure more flexible and easy to expand. 展开更多
关键词 decision support system object oriented technology system structure
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The System Design of Semiconductor Device Simulator
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作者 杨廉峰 吴金 +2 位作者 夏君 刘其贵 魏同立 《Journal of Southeast University(English Edition)》 EI CAS 1999年第2期24-29,共6页
This paper studies the numerical simulation for semiconductor devices and discusses the software design of the simulation system. Our focus is on the deep submicron device simulation for BJT, MOSFET, heterojunction bi... This paper studies the numerical simulation for semiconductor devices and discusses the software design of the simulation system. Our focus is on the deep submicron device simulation for BJT, MOSFET, heterojunction bipolar transistors (HBT), etc. So the object oriented technology for software design and its realization is used to make the system easy to implement, maintain and extend. Besides the discussion of simulation and software system design, this paper introduces a device simulator SMDS and its parallel extension under local network environment using CORBA technology. 展开更多
关键词 device simulation submicron device object oriented technology parallel simulation
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Modeling of Intelligent Integrated Network Management System Using Object Oriented Approach *
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作者 费翔 罗军舟 +1 位作者 顾冠群 吴介一 《Journal of Southeast University(English Edition)》 EI CAS 1998年第1期3-7,共5页
The concept of intelligent integrated network management (IINM) is briefly introduced. In order to analyze, design and implement IINM successfully, object oriented approach is testified to be an effective and efficien... The concept of intelligent integrated network management (IINM) is briefly introduced. In order to analyze, design and implement IINM successfully, object oriented approach is testified to be an effective and efficient way. In this paper, object oriented technique is applied to the structural model of IINM system, The Domain object class and the MU object class are used to represent the manager and the managed resources. Especially, NM IA is introduced which is a special object class with intelligent behaviors to manage the resources efficiently. 展开更多
关键词 object oriented approach computer communication network network management
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DESIGN OF WINDOW BASED AND OBJECT ORIENTED GUI
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作者 李光耀 周来水 周儒荣 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 1996年第2期74+70-73,共5页
This paper discusses the design concept and method about window based and object oriented Graphic User Interface(GUI),and describes the definition of each class in detail. It is developed with Watcom C ++ in... This paper discusses the design concept and method about window based and object oriented Graphic User Interface(GUI),and describes the definition of each class in detail. It is developed with Watcom C ++ in DOS environment.The GUI can be redeveloped conveniently and effectively by users.It consists of window,popup menu,icon,button and other components. 展开更多
关键词 USERS user interfaces graphic user interface object oriented event handle
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OBJECT ORIENTED DATA MODELLING WITH APPLICATIONS TO CAD
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作者 应维云 傅向阳 周儒荣 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 1996年第2期69+63-68,共7页
An object oriented data modelling in computer aided design (CAD) databases is focused. Starting with the discussion of data modelling requirements for CAD applications, appropriate data modelling features are introdu... An object oriented data modelling in computer aided design (CAD) databases is focused. Starting with the discussion of data modelling requirements for CAD applications, appropriate data modelling features are introduced herewith. A feasible approach to select the “best” data model for an application is to analyze the data which has to be stored in the database. A data model is appropriate for modelling a given task if the information of the application environment can be easily mapped to the data model. Thus, the involved data are analyzed and then object oriented data model appropriate for CAD applications are derived. Based on the reviewed object oriented techniques applied in CAD, object oriented data modelling in CAD is addressed in details. At last 3D geometrical data models and implementation of their data model using the object oriented method are presented. 展开更多
关键词 computer aided design DATABASES data models object oriented data models complex objects geometrical models
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A FAULT ISOLATION EXPERT SYSTEM FOR ENGINE INDICATION AND CREW ALERTING SYSTEM
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作者 杨忠 刘正埙 +1 位作者 左洪福 吴惠祥 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 1998年第1期48-52,共5页
This paper is devoted to develop an expert system to manage the fault isolation and maintenance knowledge of the engine indication and crew alerting system (EICAS). The object oriented programming (OOP) technique and... This paper is devoted to develop an expert system to manage the fault isolation and maintenance knowledge of the engine indication and crew alerting system (EICAS). The object oriented programming (OOP) technique and the microsoft foundation class (MFC) are applied to set up a frame decision tree (FDT) which incorporates the expert system′s knowledge base, inference engine and user interface. Once a fault symptom indicated by the EICAS is input, by inferring step by step, the expert system can locate it in the engine and provide some homologous constructive maintenance advice. 展开更多
关键词 expert system object oriented ENGINE fault isolation
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Application of Petri Net to Fault Diagnosis in Satellite 被引量:3
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作者 Ding Caihong School of Mechanics, DongHua University, Shanghai 200051, P R. China 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2001年第2期92-96,共5页
A prototype of fault diagnosis based on Petri net, which is developed for a satellite tele-control subsystem, is introduced in this paper. Its structure is first given with the emphasis on a Petri net modeling tool wh... A prototype of fault diagnosis based on Petri net, which is developed for a satellite tele-control subsystem, is introduced in this paper. Its structure is first given with the emphasis on a Petri net modeling tool which is designed using the object oriented method. The prototype is connected to the database with DAO (Date Access Object) technique, and makes the Petri net's firing mechanism and its analyzing methods to be packed up as DLL (Dynamic Link Library) documents. Compared with the rule-based expert system method, the Petri net-based one can store the knowledge in mathematical matrix and make inference more quickly and effectively. 展开更多
关键词 Database systems Expert systems Matrix algebra Object oriented programming Petri nets Software prototyping
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A Study on the Design for Object-Oriented Adaptive Decision-Making Teams 被引量:2
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作者 Xiao Bing, Qu Tan & Wang Mingzhe Huazhong University of Science and Technology, Wuhan 430074,P.R. China 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2002年第1期68-73,共6页
The modern war features a highly distributed coordination. In the face of great time constrains, it is important to change command organizations to adapt to the real environment. Therefore it's a key step to set u... The modern war features a highly distributed coordination. In the face of great time constrains, it is important to change command organizations to adapt to the real environment. Therefore it's a key step to set up adaptive C2 teams. In this paper, the relational problems about distributed C2 organizational structure adaptation are discussed, and the methodology for team decision making design based on the object oriented technique is studied. 展开更多
关键词 Adaptation Decision making team Colored Petri net Object oriented.
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Software Engineering Technology for the 21^(st) Century 被引量:1
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作者 Cheng Hu Institute of Software, Chinese Academy of Sciences Beijing 100080, China 《Wuhan University Journal of Natural Sciences》 CAS 2001年第Z1期152-158,共7页
In this paper we will discuss the software engineering technology for the 21 st century. First we review development over the last half century, overview application requirement and environment, accept a chal... In this paper we will discuss the software engineering technology for the 21 st century. First we review development over the last half century, overview application requirement and environment, accept a challenge. Then we outline following software engineering techniques: 1) Process;2) Analysis;3) Design;4) UML;5) Component;6) Java +XML;7) Integrated;8) Quality(ISO9000&CMM). 展开更多
关键词 software engineering object oriented COMPONENT Java UML CMM ISO9000
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Software Process Modeling with UML in Development of Medical Insurance MIS 被引量:1
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作者 Li Si guang, Lin Zi yu ,Tang Sheng qun, Xiao Shao wu State Key Lab of Software Engineering, Wuhan University, Wuhan 430072,China 《Wuhan University Journal of Natural Sciences》 CAS 2001年第Z1期224-228,共5页
This paper describes how to use the Unified Modeling Language (UML) to modeling software processes in medical insurance MIS, and compares UML Modeling method with classic PO(Process Oriented) Modeling method. It indi... This paper describes how to use the Unified Modeling Language (UML) to modeling software processes in medical insurance MIS, and compares UML Modeling method with classic PO(Process Oriented) Modeling method. It indicates that the whole performance of application system model described by UML is much better than the one described by PO. 展开更多
关键词 UML Modeling method Process Oriented Object Oriented medical insurance
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A UML profile for framework modeling 被引量:1
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作者 徐小良 汪乐宇 周泓 《Journal of Zhejiang University Science》 CSCD 2004年第1期92-98,共7页
The current standard Unified Modeling Language(UML) could not model framework flexibility and extendibility adequately due to lack of appropriate constructs to distinguish framework hot-spots from kernel elements. A n... The current standard Unified Modeling Language(UML) could not model framework flexibility and extendibility adequately due to lack of appropriate constructs to distinguish framework hot-spots from kernel elements. A new UML profile that may customize UML for framework modeling was presented using the extension mechanisms of UML, providing a group of UML extensions to meet the needs of framework modeling. In this profile, the extended class diagrams and sequence diagrams were defined to straightforwardly identify the hot-spots and describe their instantiation restrictions. A transformation model based on design patterns was also put forward, such that the profile based framework design diagrams could be automatically mapped to the corresponding implementation diagrams. It was proved that the presented profile makes framework modeling more straightforwardly and therefore easier to understand and instantiate. 展开更多
关键词 Object oriented frameworks Unified Modeling Language(UML) UML profile Hot spots Design patterns
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Data Model Transformation in CAD System for Multi View Modeling 被引量:1
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作者 Toyohiko Hirota, Masaaki Hashimoto Kyushu Institute of Technology, 680 4 Kawazu, Iizuka, Fukuoka 820 8502, Japan 《Wuhan University Journal of Natural Sciences》 CAS 2001年第Z1期410-415,共6页
This paper describes multi view modeling and data model transformation for the modeling. We have proposed a reference model of CAD system generation, which can be applied to various domain specific languages. Howeve... This paper describes multi view modeling and data model transformation for the modeling. We have proposed a reference model of CAD system generation, which can be applied to various domain specific languages. However, the current CAD system generation cannot integrate data of multiple domains. Generally each domain has its own view of products. For example, in the domain of architectural structure, designers extract the necessary data from the data in architecture design. Domain experts translate one view into another view beyond domains using their own brains.The multi view modeling is a way to integrate product data of multiple domains, and make it possible to translate views among various domains by computers. 展开更多
关键词 CAD data model program generation object\|oriented database
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Dynamic Slicing of Object Oriented Programs
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作者 Jian\|jun Zhao Department of Computer Science and Engineering, Fukuoka Institute of Technology, Fukuoka 811 0295, Japan 《Wuhan University Journal of Natural Sciences》 CAS 2001年第Z1期391-397,共7页
Program slice has many applications such as program debugging, testing, maintenance, and complexity measurement. A static slice consists of all statements in program P that may effect the value of variable v a... Program slice has many applications such as program debugging, testing, maintenance, and complexity measurement. A static slice consists of all statements in program P that may effect the value of variable v at some point p , and a dynamic slice consists only of statements that influence the value of variable occurrence for specific program inputs. In this paper, we concern the problem of dynamic slicing of object oriented programs which, to our knowledge, has not been addressed in the literatures. To solve this problem, we present the dynamic object oriented dependence graph (DODG)which is an arc classified digraph to explicitly represent various dynamic dependence between statement instances for a particular execution of an object oriented program. Based on the DODG, we present a two phase backward algorithm for computing a dynamic slice of an object oriented program. 展开更多
关键词 program slicing dynamic dependence graph object oriented program SOFTWARE maintenance DEBUGGING testing
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Evolving Objects for Software Engineering
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作者 Wang xiao\|ling, Dong yi\|sheng Department of Computer Science and Engineering Southeast university, Nanjing 210018,China 《Wuhan University Journal of Natural Sciences》 CAS 2001年第Z1期263-267,共5页
This paper is concerned with evolving objects method for software design that can adapt to the changing environments and requirements automatically. We present system architecture with objects library, where there are... This paper is concerned with evolving objects method for software design that can adapt to the changing environments and requirements automatically. We present system architecture with objects library, where there are objects based on domain ontologies. We define some genetic operators for objects, and discuss how to apply these genetic operators on objects to get new objects, which can satisfy new requirements. 展开更多
关键词 object oriented ONTOLOGY evolving objects meta object genetic operator mutation operator crossover operator
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C++ Template Data Structure Mappings of ASN.1 of ITU-T X.680 Suitable with PER( X.691) and BER( X.690)
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作者 Yu Ai-qing Yu Sheng-sheng +1 位作者 Zhou Jin-li Guo Hong-xing 《Wuhan University Journal of Natural Sciences》 EI CAS 2000年第3期285-288,共4页
Networking protocols annotated with ASN. 1 of ITU-T X. 680 is readable, however its implementation with traditional routine call is complex and difficult. Object Oriented idea is introduced to get the following simpli... Networking protocols annotated with ASN. 1 of ITU-T X. 680 is readable, however its implementation with traditional routine call is complex and difficult. Object Oriented idea is introduced to get the following simplicities: Make the implementation of protocol data unit annotated with ASN. 1 similar to its definition with little or even without any changes. The framework for encapsulation of ASN. 1 data types into objects discussed here is not only suitable for PER X. 691 but also suitable for BER X. 690. 展开更多
关键词 object oriented implementation template class C++ ASN. 1 ITU-T X. 680 ITU-T X. 691 ITU-T X. 690 PER BER
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CORBA-Based Discrete Event Simulation System
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作者 Luo, J. Zheng, S. +1 位作者 Zhong, L. Duan, F. 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2001年第3期16-19,共4页
The CORBA technique is an integration of the object-oriented conception and distributed computing technique. It can make the application within distributed heterogeneous environments reusable, portable and interoperab... The CORBA technique is an integration of the object-oriented conception and distributed computing technique. It can make the application within distributed heterogeneous environments reusable, portable and interoperable. The architecture of CORBA-based discrete event simulation systems is presented and the interface of distributed simulation objects (DSO) is defined in this paper after the DSO is identified and the synchronization mechanism among DSO is discussed. 展开更多
关键词 Computational methods Computer architecture Computer simulation Computer software portability Computer software reusability Interfaces (computer) INTEROPERABILITY Object oriented programming SYNCHRONIZATION
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A Design Method of Business Application Framework Based on Software Patterns
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作者 He Ke\|qing 1, Yang Chun wen 1, Ying Shi 2 1. School of Computer Science, Wuhan University, Wuhan 430072, China 2. State Key Laboratory of Software Engineering, Wuhan University, Wuhan 430072, China 《Wuhan University Journal of Natural Sciences》 CAS 2001年第Z1期204-208,共5页
This paper discusses design and implementation method of Business Application Framework based on software patterns, and then presents MVC pattern of architecture and the method of dynamical update promulgation for Bus... This paper discusses design and implementation method of Business Application Framework based on software patterns, and then presents MVC pattern of architecture and the method of dynamical update promulgation for Business Application Framework. We discuss adaptation of Abstract Factory for the kernel functionality of Business Application Framework, such as data creation, manipulation, composition, etc. It also presents class model and its class structure of Abstract Factory pattern. Finally, we briefly discuss the update, modification, and reconstruction method of Business Application Framework. 展开更多
关键词 object oriented MVC pattern Abstract Factory pattern software framework UML role model
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Building an E-business System Using Enterprise JavaBeans Architecture
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作者 CAI Ling-feng, LIN Cai-xing, LI Min (Mechanical Engineering & Automation Institute, Shanghai University, Shanghai 200072, China) 《厦门大学学报(自然科学版)》 CAS CSCD 北大核心 2002年第S1期275-,共1页
This paper provides an overview of using Enterprise JavaBeans to build an e-business system. First, the authors point out some difficulties during building an e-business sy stem. For example, how can we integrate all ... This paper provides an overview of using Enterprise JavaBeans to build an e-business system. First, the authors point out some difficulties during building an e-business sy stem. For example, how can we integrate all kinds of software and hardware i n company quickly and economically Then the authors introduce a representative EJB structure and currently EJB deve loping approaches. A representative EJB structure includes an EJB Server, EJB Co ntainers, EJB Clients and JNDI etc. An EJB Server is similar to CORBA ORB. It pr ovides system services such as original implementing environment, multiprocessin g, workload management, equipment accessing, JTS and JNDI service and making the EJB Container visible. The EJB Container plays the role of interface between th e EJB and others. An EJB Client never accesses Bean directly. There are two kind s of containers. One is session contain, it mainly includes brief, impermanent E JB(thus all statuses will not be saved). The other is entity container which inc luding permanent EJB. The EJB Client uses EJB Beans. First it finds EJB Containe r through JNDI interface. Then it transfers EJB methods using EJB Container. Current, EJB developing approaches include several major aspects such as develop ment, deployment, application programs assembling and management of Enterprise B ean etc. Above all, we should define three classes, Bean class, home interface c lass of Bean and remote interface class of Bean. Then we should create a deploym ent descriptor. This is an XML documentation, which declared the properties of E nterprise Bean and bound the class documentations of Bean(including stub documen tation and skeleton documentation). And then we put these deployments into a jar documentation and define environment properties in the deployer. Next, we shoul d assemble application programs including install Enterprise Beans to server and test the connecting of each ties. The program assembler integrates several Ente rprise Beans with other beans(like Servlet, Applet, Script etc) into an integrat ed application program. It also may integrate several Enterprise Beans into a co mplicated Enterprise Bean. Of cause we also need to manage the Enterprise Bean. In the end, the authors point out several major advantages of using EJB to build e-business system such as simplifying application development and deployment, supporting heterogeneous client and server platforms, leveraging existing skills and assets, delivering a secure, scalable, reliable and manageable environment and providing the freedom to implement using many vendors’ products. 展开更多
关键词 electronic commerce Enterprise JavaBeans Java p rogramming language object oriented programming
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