• Title/Summary/Keyword: Web-based Database

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Distribute Parallel Crawler Design and Implementation (분산형 병렬 크롤러 설계 및 구현)

  • Jang, Hyun Ho;jeon, kyung-sik;Lee, HooKi
    • Convergence Security Journal
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    • v.19 no.3
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    • pp.21-28
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    • 2019
  • As the number of websites managed by organizations or organizations increases, so does the number of web application servers and containers. In checking the status of the web service of the web application server and the container, it is very difficult for the person to check the status of the web service after accessing the physical server at the remote site through the terminal or using other accessible software It. Previous research on crawler-related research is hard to find any reference to the processing of data from crawling. Data loss occurs when the crawler accesses the database and stores the data. In this paper, we propose a method to store the inspection data according to crawl - based web application server management without losing data.

RDF and OWL Storage and Query Processing based on Relational Database (관계형 데이타베이스 기반의 RDF와 OWL의 저장 및 질의처리)

  • Jeong Hoyoung;Kim Jungmin;Jung Junwon;Kim Jongnam;Im Donghyuk;Kim Hyoung-Joo
    • Journal of KIISE:Computing Practices and Letters
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    • v.11 no.5
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    • pp.451-457
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    • 2005
  • In spite of the development of computers, the present state that a lot of electronic documents are overflowing makes it more difficult for us to get appropriate information. Therefore, it's more important to focus on getting meaningful information than processing the data quickly In this context, Semantic Web enables an intelligent processing by adding semantic metadata on yow web documents. Also, as the Semantic Web grows, the knowledge resources as well as web resources are getting more and more importance. In this paper, we propose an OWL storage system aiming at an intelligent Processing by adding semantic metadata on your web documents, plus a system aiming at an OWL-QL Query Processing.

Dynamic Multi-distributed Web Cluster Group Model for Availability of Web Business (웹 비즈니스의 고가용성을 위한 동적 다중 웹 분산 클러스터 그룹 모델)

  • Lee, Gi-Jun;Park, Gyeong-U;Jeong, Chae-Yeong
    • The KIPS Transactions:PartA
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    • v.8A no.3
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    • pp.261-268
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    • 2001
  • With the rapid growth of the Internet, various web-based businesses are creating a new environment in an imaginary space. However, this expanding Internet and user increase cause an overflow of transmission and numerous subordinate problems. To solve these problems, a parallel cluster system is produced using different methods. This thesis recommends a multi0distribution cluster group. It constructs a MPP dynamic distribution sub-cluster group using numerous low-priced and low-speed systems. This constructed sub-cluster group is then connected with a singular virtual IP to finally serve the needs of clients (users). This multi-distribution cluster group consists of an upper structure based on LVS and a dynamic serve cluster group centered around an SC-server. It conducts the workloads required from users in a parallel process. In addition to the web service, this multi-distribution cluster group can efficiently be utilized for the calculations which require database controls and a great number of parallel calculations as well as additional controls with result from the congestion of service.

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An XML Database System for 3-Dimensional Graphic Images (3차원 그래픽 이미지를 위한 XML 데이타베이스 시스템)

  • Hwang, Jong-Ha;Hwang, Su-Chan
    • Journal of KIISE:Databases
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    • v.29 no.2
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    • pp.110-118
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    • 2002
  • This paper presents a 3-D graphic database system based on XML that supports content-based retrievals of 3-D images, Most of graphics application systems are currently centered around the processing of 2-D images and research works on 3-D graphics are mainly concerned about the visualization aspects of 3-D image. They do not support the semantic modeling of 3-D objects and their spatial relations. In our data model, 3-D images are represented as compositions of 3-D graphic objects with associated spatial relations. Complex 3-D objects are mode]ed using a set of primitive 3-D objects rather than the lines and polygons that are found in traditional graphic systems. This model supports content-based retrievals of scenes containing a particular object or those satisfying certain spatial relations among the objects contained in them. 3-D images are stored in the database as XML documents using 3DGML DTD that are developed for modeling 3-D graphic data. Finally, this paper describes some examples of query executed in our Web-based prototype database system.

Collaborative B2B architecture design using Web services (웹서비스를 이용한 Collaborative B2B 아키텍처 설계)

  • 김태운;김승완;한용호
    • Journal of Intelligence and Information Systems
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    • v.9 no.1
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    • pp.211-225
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    • 2003
  • This paper aims at the design of collaborative architecture for business to business (B2B) applications based on Web service protocol. As different business processes should be interfaced in the B2B environment collaboration is important fur the success of B2B implementation. For the development tools, XML, Web services and ASP.NET were adopted Web services are emerging to provide a systematic and extensible framework for application-to-application interaction. The Web services framework is divided into three areas; communication protocols, service descriptions and Web discovery. Web services such as SOAP, WSDL and UDDI correspond to the three areas respectively. ASP.NET is utilized which corresponds to the component and service set located in the top layer of .NET. For the service of product category and product details, Web service architecture was implemented based upon the SQL server database.

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Spatial Index based on Main Memory for Web CIS (Web GIS를 위한 주기억 장치 기반 공간 색인)

  • 김진덕;진교홍
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2001.10a
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    • pp.191-194
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    • 2001
  • The availability of the inexpensive, large main memories coupled with the demand for faster response time are bringing a new perspective to database technology. The Web GIS used by u unspecified number of general public in the internet needs high speed response time and frequent data retrieval for spatial analysis rather than data update. Therefore, it is appropriate to use main memory as a underlying storage structures for the Web GIS data. In this paper, we propose a data representation method based on relative coordinates and the size of the MBR. The method is able to compress the spatial data widely used in the Web GIS into smaller volume of memory. We also propose a memory resident spatial index with simple mechanism for processing point and region queries. The performance test shows that the index is suitable for managing the skewed data in terms of the size of the index and the number of the MBR intersection check operations.

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Design and Implementation of an Efficient Web Services Data Processing Using Hadoop-Based Big Data Processing Technique (하둡 기반 빅 데이터 기법을 이용한 웹 서비스 데이터 처리 설계 및 구현)

  • Kim, Hyun-Joo
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.1
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    • pp.726-734
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    • 2015
  • Relational databases used by structuralizing data are the most widely used in data management at present. However, in relational databases, service becomes slower as the amount of data increases because of constraints in the reading and writing operations to save or query data. Furthermore, when a new task is added, the database grows and, consequently, requires additional infrastructure, such as parallel configuration of hardware, CPU, memory, and network, to support smooth operation. In this paper, in order to improve the web information services that are slowing down due to increase of data in the relational databases, we implemented a model to extract a large amount of data quickly and safely for users by processing Hadoop Distributed File System (HDFS) files after sending data to HDFSs and unifying and reconstructing the data. We implemented our model in a Web-based civil affairs system that stores image files, which is irregular data processing. Our proposed system's data processing was found to be 0.4 sec faster than that of a relational database system. Thus, we found that it is possible to support Web information services with a Hadoop-based big data processing technique in order to process a large amount of data, as in conventional relational databases. Furthermore, since Hadoop is open source, our model has the advantage of reducing software costs. The proposed system is expected to be used as a model for Web services that provide fast information processing for organizations that require efficient processing of big data because of the increase in the size of conventional relational databases.

Development of Design Supporting System considering CPC concept (CPC (Collaborative Product Commerce) 개념의 설계 지원 시스템 개발)

  • Ban, Chang-U;Jang, Dong-Yeong
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 2004.05a
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    • pp.39-43
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    • 2004
  • A research shows that a new category of software, Collaborative Product Commerce (CPC), is now emerging, allowing discrete manufacturers to once again distinguish themselves on their products and innovations. CPC permits discrete manufacturers to significantly improve the core processes around the management functions associated with the complete product life cycle that are the basis of their existence. As a way to develop computing tools of CPC to support a design process of product, a web-based design supporting system was constructed in the paper. The system consists of C-Product system and Net Meeting Communication system to improve communications between designers and persons for verification of design. The product data files of C-Product system were designed by Pro/Engineer and converted to 3D Viewer format for being used in the web browser. Also, Net Meeting Communication system and Database were developed using ASP and Microsoft SQL 2000 Server to share diverse files that can be utilized to design on the web in real time.

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DICE: Web-based Chemical DB Search System (DICE: Web 기반의 화공, 화학 데이터베이스 검색 시스템)

  • 강현민;차상균
    • Proceedings of the Korean Information Science Society Conference
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    • 1998.10b
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    • pp.30-32
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    • 1998
  • 정보기술의 급속한 발전에 따라 공학 및 과학 분야에 대해서도 정보공유를 통한 연구의 효율성 증대를 위해 Web기반의 DB검색 시스템의 개발이 필요하게 되었다. 이러한 공학 및 과학 분야의 데이터베이스는 실험정보를 많이 다룬다는 분야의 특수성 때문에 데이터 모델링과 사용자 인터페이스 측면에서 이를 고려한 설계가 필요하다. 분 논문에서는 이에 대한 간단한 분석을 통해 ODBMS, CORBA, Java를 이용한 설계가 적절함을 보이고, 이를 화공 및 화학 분야에 적용한 시스템인 DICE(Database on Internet for Chemical Engineering) 검색 시스템을 소개한다. DICE 검색 시스템은 다양한 공학 분야의 실험정보를 관리하는데 유용한 데이터 구조와 사용자 인터페이스를 바탕으로 하고 있으며, 이를 이용하여 화공 및 화학 분야와 관련된 화합물의 물성정보와 실험정보를 함께 제공한다.

Information System of User Location in Virtual Nuclear Power Plant (가상원전 위치정보인식시스템 개발)

  • 서명원;오운석;조기용
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2003.04a
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    • pp.321-326
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    • 2003
  • As the computer and computer graphic technology have been progressed, the virtual reality(VR) technology has been issued. The most important objective for VR system is to provide a reality to the user. Therefore, it is necessary to satisfy the perception of human. In recent years, more effective VR system has been studied and developed by many people. In this paper, the Information System of User Location(ISUL) is proposed. ISUL is used to improve a process of In-Service Inspection work. ULBIS provides a high degree of efficiency for In-Service Inspection process and makes inspectors get information about ISI exam report in web environment. In addition, ISUL provides a navigation, Isometric drawing reference viewer and Web-based ISI Database Reference System in web environment.

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