Papers by Keyword: XML

Abstract: In this paper, from the perspective of XML data management, first in the HDFS store large amount of data and XML data based on XML data query rewrite the traditional framework of MapReduce process, the design of large amount of data XML data set keywords retrieval algorithm, contain XML data classification and coding, index and search a four parts, solve the large amount of data of the XML document keywords retrieval problem. Then the design and implementation based on MapReduce of large amount of data XML keyword query system.

Abstract: Face the reality application in the "information island" problem, based on the analysis of the data exchange between heterogeneous database conflict, on the basis of this paper proposes a data exchange model in XML as middle format. Make full use of the XML is easy to extend, good interactivity and semantic is strong, can be formatted, easy processing, has nothing to do with the platform, and other features and advantages, and USES the c # language and XML and related technologies of the model carried on the detailed design and implementation of the main modules, and each function module in the model are relatively independent and extensible, strong commonality.

Abstract: The wind turbine remote monitoring and fault diagnosis is the key of improving unit efficiency, reducing maintenance costs, and ensuring safe and stable operation of the wind farms. A wide variety of wind farm monitoring systems, non-uniform communication standards, and heterogeneous communication platforms is result in a difficulty of information exchange. In this paper, on the basis of following IEC61400-25 standard, we put forward using XML technology to encapsulate data to avoid the formation of the "information island" in wind farms; By combining with VC++ Socket technology to establish a network communication system, this paper solves the data exchange problem of the wind turbine remote monitoring and fault diagnosis system through achievement of data receiving and dispatching; In the end, we use the waveform curve way to display the XML parsing of data, which is convenient for staff to observe and analyze the data.

Abstract: First analyzing the present of data integration, rising existing the issue, and then introducing the related technologies simplify, finally a model of Multi-data Integration Based on Lotus Domino is proposed, which can implement data integration well with cooperative work. The scheme avoids the shortcomings of the current data integration which use the features of CSCW platform of lotus domino. Practice shows that the model is feasibility and efficiency dealing with sharing problem distributed and heterogeneous data.

Abstract: Processing of a large data set which is known for today as big data processing is still a problem that has not yet a well-defined solution. The data can be both structured and unstructured. For the structured part, eXtensible Markup Language (XML) is a major tool that freely allows document owners to describe and organize their data using their markup tags. One major problem, however, behind this freedom lies in the big data retrieving process. The same or similar information that are described using the different tags or different structures may not be retrieved if the query statements contains different keywords to the one used in the markup tags. The best way to solve this problem is to specify a standard set of the markup tags for each problem domain. The creation of such a standard set if done manually requires a lot of hard work and is a time consuming process. In addition, it may be hard to define terms that are acceptable by all people. This research proposes a model for a new technique, XML Tag Recommendation (XTR) that aims to solve this problem. This technique applies the idea of Case Base Reasoning (CBR) by collecting the most used tags in each domain as a case. These tags come from the collection of related words in WordNet. The WordCount that is the web site to find the frequency of words is applied to choose the most used one. The input (problem) to the XTR system is an XML document contains the tags specified by the document owners. The solution is a set of the recommended tags, which is the most used tags, for the problem domain of the document. Document owners have a freedom to change or not change the tags in their documents and can provide feedback to the XTR system.

Abstract: With the continuous development of petroleum exploration technology and exploitation business, the data types involved in the petroleum field are getting more complicated and richer, so a lot of heterogeneous data types emerged, data interchange can not be achieved directly among them. In this paper, the integration middle framework of heterogeneous data types is built based on XML, to realize the transition and integration of relational data and XML data, and to provide support for the data sharing and application among data model. Foundation item .The project of youth fund of Northeast Petroleum University (The research of XML heterogeneous data management technology applied in oilfield management)

Abstract: This paper mainly discusses the integration of the enterprises application system based on the Web Services technology. The Web Services technology can realize the system application integration in the enterprise internal system and the different enterprise application systems,it is universal, platform independent, and language independent. set. This makes Web Services to become a new generation integration technology of the enterprise application integration in the Internet environment .

Abstract: According to the distribution, autonomy and heterogeneity of the university database, we designed the structure, main arithmetic, query distribution device, result processor and wrapper of the university heterogeneous data integration middle ware by using Java, XML and middle ware. We emphasized on introducing the designation of query distribution device, result processor and wrapper.

Abstract: An automatic programming controller system based on the milling processing feature was proposed in this paper. Firstly, through the analysis of milling feature and the relationship of that, a part milling machining feature model is established. Secondly, on this basis, the article introduced the XML files technology into the automatic programming system and designed structure of XML files for storing parts process and shape feature information. At last, this paper sets up the automatic programming controller system composed of the human-machine interface module; XML files access module and NC program algorithm module. The advantage of the controller is easy to maintain and upgrade and there is a certain practicality in machining.

Abstract: Twig query, also known as tree pattern query (TPQ), is considered as the core operation of XML data queries. However, a complex XML query described by XQuery often cannot be represented by a single basic TPQ. Aiming at XQuery language, this paper presents a multi-layer tree pattern representation method, named MTP, and a matching algorithm MLTwig, which can effectively use intermediate results of outer query to match inner tree pattern in MTP based on a novel data structure, WTree, thereby saving time and space. Experimental results show that this algorithm can improve the processing efficiency for XQuery expression which can be represented by MTP.