In IEC61850 substation automation systems (SASs), substation configuration description language (SCL) is suggested to assure seamless information exchange among various intelligent electronic devices (IEDs) from diffe...
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ISBN:
(纸本)9783037853191
In IEC61850 substation automation systems (SASs), substation configuration description language (SCL) is suggested to assure seamless information exchange among various intelligent electronic devices (IEDs) from different manufacturers in the form of unambiguous and standardized xml. In the paper, native xml database (NXD) is proposed to store and manage SCL files since NXD takes advantage over xml enabled database (XED) in maintaining information integrity that is the most important factor of SCL file management. And the detailed process of SCL file dynamic implementation in IEDs is demonstrated. According to information with different communication real-time requirements, configuration information from SCL files will be extracted in advance or only when the information is used. Finally, a testbed built by open source software Libxml2 under Linux system verifies the effectiveness of SCL file information extraction using Xpath.
This paper presents a system that is designed to make possible the organization and search within the collected digitized material of intangible cultural heritage. The motivation for building the system was a vast qua...
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ISBN:
(纸本)9782951740877
This paper presents a system that is designed to make possible the organization and search within the collected digitized material of intangible cultural heritage. The motivation for building the system was a vast quantity of multimedia documents collected by a team from the Institute for Balkan Studies in Belgrade. The main topic of their research were linguistic properties of speeches that are used in various places in the Balkans by different groups of people. This paper deals with a prototype system that enables the annotation of the collected material and its organization into a native xml database through a graphical interface. The system enables the search of the database and the presentation of digitized multimedia documents and spatial as well as non-spatial information of the queried data. The multimedia content can be read, listened to or watched while spatial properties are presented on the graphics that consists of geographic regions in the Balkans. The system also enables spatial queries by consulting the graph of geographic regions.
Software-as-a-Service (SaaS) is now a hot issue in both academia and business. Multi-tenant data storage as a fundamental component of a SaaS system draws much attention. The need of scalability and multi-tenant suppo...
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Software-as-a-Service (SaaS) is now a hot issue in both academia and business. Multi-tenant data storage as a fundamental component of a SaaS system draws much attention. The need of scalability and multi-tenant support in SaaS makes traditional RDBMS unappealing and calls for a better data storage solution. In this paper, we categorize some proposed solutions and evaluate the performance of a native xml database (NXD) solution implemented on Berkeley DB xml. Experimental results show that the opportunity of applying NXD in SaaS has not yet arrived.
The design and implementation of a native xml database called XManager is presented in this paper. XManager covers most of the native xml database features. XManager implements a filter scheme based on xml, which make...
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ISBN:
(纸本)9812700420
The design and implementation of a native xml database called XManager is presented in this paper. XManager covers most of the native xml database features. XManager implements a filter scheme based on xml, which makes XManager having a strong micro kernel. Based on this scheme, XManager found an open environment;any functions can be added as plug-ins. This scheme also gives XManager good performance. The experimental results show that XManager is much better than the well-known apache xmldatabase XIndice on indexing and querying collection of xml documents.
Effective storage of EMR data is the foundation of the rapid development of EMR. This paper analyses and compares the three traditional storage pattern of EMR data firstly, and then proposes a combination storage plan...
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ISBN:
(纸本)9780769539300
Effective storage of EMR data is the foundation of the rapid development of EMR. This paper analyses and compares the three traditional storage pattern of EMR data firstly, and then proposes a combination storage plan using ralational databse and native xml database with fine-grained structure granularity of EMR data and according to the HL7 CDA, which is the international de facto standard of EMR. We refined and evaluated this solution by experiments, and it is proved that this storage plan not only could reduce the EMR data storage space and the query time complexity effectively, but also could facilitate the clinicians and researcher to use EMR data for statistical medical information, clinical diagnosis and other areas in the later period.
This paper has introduced knowledge management and related concept, has analysed the characteristic of native xml database, aims at the bottleneck problem in the development of knowledge management system, Have put fo...
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ISBN:
(纸本)9780769538044
This paper has introduced knowledge management and related concept, has analysed the characteristic of native xml database, aims at the bottleneck problem in the development of knowledge management system, Have put forward solution that establishment of knowledge management system based on native xml database,in the finally, have given a reference model of knowledge management system base on Tamino.
In this paper we describe DeVisa, a Web system for scoring and management of data mining models. The system has been designed to provide unified access to different prediction models using standard technologies based ...
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ISBN:
(纸本)9789898111364
In this paper we describe DeVisa, a Web system for scoring and management of data mining models. The system has been designed to provide unified access to different prediction models using standard technologies based on xml. The prediction models are serialized in PMML format and managed using a native xml database system. The system provides functions such as scoring, model comparison, model selection or sequencing through a web service interface. DeVisa also defines a specialized PMML query language named PMQL used for specifying client requests and interaction with PMML repository. The paper analyzes the system's architecture and functionality and discusses its use as a tool for researchers.
Accounting system meters resource usage of jobs executed on the computing nodes, and provides interfaces to extract usage information for later auditing or charge bill generation in computational grid. Current account...
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ISBN:
(纸本)9780769534497
Accounting system meters resource usage of jobs executed on the computing nodes, and provides interfaces to extract usage information for later auditing or charge bill generation in computational grid. Current accounting systems only support fer specialized grid middleware and provide deferred resource usage accounting. This paper presents a flexible resource accounting framework and service for GOS. A line-based log parsing framework is designed to reduce the accounting latency from dozens of hours to one minute. Moreover, this paper proposes an algorithm named SSQT to speed up storage of large amount of resource usage data, since the native xml database have performance defects. This framework has been implemented and deployed on CNGrid (China National Grid), which is now accounting for 10 sites in China.
eXtensible Markup Language (xml) is fast becoming the common electronic data interchange language between applications. In this paper, we describe a database engine called 'Db4xml', which provides storage for ...
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eXtensible Markup Language (xml) is fast becoming the common electronic data interchange language between applications. In this paper, we describe a database engine called 'Db4xml', which provides storage for xml documents in native format. Db4xml is a high performance, main memory resident database engine. Db4xml is being used as a testbed for comparing various query evaluation techniques. The use of wild card (*, ?, '//', etc.) in the path expressions of a query allows users to query documents whose structural information is not available. This paper lists different techniques that can be used to evaluate generalized path expressions (GPE) and presents a performance comparison of the same. A preliminary performance study of the effect of using concurrency control techniques on the various query evaluation techniques is also performed. This paper briefly discusses a suitable recovery technique for the database engine. (C) 2003 Elsevier Inc. All rights reserved.
This thesis aims to find a graph structure for representing xml documents and to implement the former representation for storing such documents. The graph structure, in fact, is the complete representation for the xml...
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This thesis aims to find a graph structure for representing xml documents and to implement the former representation for storing such documents. The graph structure, in fact, is the complete representation for the xml documents; this is dued to the id/idref attribute which could be present inside the xml document *** different graph structures have been defined on this thesis, they are called most granular and customizable representations. The first one is the simplest way for representing xml documents, while the second one makes some improvements for optimizing inserting, deleting, and querying *** implementation of the former graph structures is made over a new kind of database built specifically for storing semi-structured data, such database is called Neo. Neo database works only with three primitives: node, relationship, and property. Such data model represents a new solution compared to the traditional relational *** xml information manager implements two different API which work with the two former graph structure respectively. The first API works with the customizable representation, while the second one works with the customizable *** evaluations have been done over the second implemented API, and they showed that the implemented code is free of bugs and moreover that the customizable representation brings about some improvements on making queries over the stored data
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