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Similar product identifications with different brands focus on different aspects, and there are different coding methods of product identification, which brings inconvenience to the data storage and representation during integrating the data from various data sources and increases the difficulty of data query. This paper proposes a data dictionary based XML to define a storage format, which can be...
Text encoding is considered as the most functional outset to store and retrieve data, with trees of information and lists of concordances as its first immediate results, but there is a wide range of possible results opening up when a complete encoding process is accomplished. The three case studies described in this paper are meant to give an overall view on the preliminary steps of a wider project...
Aiming at the problem of failing to support effective structural join on compressed data of existing XML Data compressors, this paper proposes a new Compressor Structural Join Oriented XML Data Compressor which makes structural join possible by giving all elements and attribute names in document a unique region encoding. This paper also provides a definition of the Same Sub Tree(SST) and an algorithm...
GML, a geographic information coding standard, has been widely used in WebGIS, heterogeneous GIS data sharing, integration, and interoperation. However, its features of large amount of redundancy inherited from XML file structure and geographic information system make a serious obstacle in WebGIS applications. According to the characteristics of GML, a data stream-based compression algorithm GDSC...
Geography Markup Language (GML) has become a de facto international encoding standard for exchanging geospatial data among heterogeneous Geographic Information Systems (GIS). Whereas, structurally redundant tags and textual data representation usually inflate the sizes of GML documents substantially, which makes the storage and transport costly. In this paper, we propose an effective compression approach...
As XML gradually becomes the standard of the data exchange and expression for Internet, how to accurately access the data stored in the XML documents has already been a crucial problem to be solved. At first, the paper illustrates the structure of Patricia Tries and gives the search method of Patricia Tries based on analyzing the difference between Tries tree with Patricia Tries. Afterwards, the dictionary-based...
As XML has become the standard of data exchange and express of Internet and e-commerce, it is being more and more widely used, while XML is a kind of self-described language, with a large number of redundant structural information, so that is the hot study now on how to use XML data stream to be reasonable and efficient. The existing compression techniques of XML require two-pass scan on data, which...
The major problem existing in current Chinese character glyph descriptions is the standard character set can't cover all possible Chinese characters, some particular variants of characters that are unified also can not describe and display. Character Description Language (CDL) can help resolve both of the difficulties just mentioned. This paper presents the key features and syntax of the language,...
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