Efficient processing of XML twig pattern matching

... and query processing and no use of DTDs or XML Schema 2.2 XML Twig Pattern Matching Algorithms Since XML twig pattern matching is widely considered as a core operation in XML queries processing, ... holistic XML twig pattern processing, including the reduction of intermediate results for twig queries with P-C relationships, the efficient processing of...

Ngày tải lên: 30/09/2015, 06:40

... to any level of complexity, and the provision of Document Type Declaration (DTD)[8] and XML Schema[11] for constraining the structure and data values of a class of XML documents XML has reduced ... map XML document into relational database will be reviewed in Section 2.1 Background information of XML element labeling schemes, which is considered as one of the foundatio...

Ngày tải lên: 15/09/2015, 17:10

... problem of efficient processing for multiple XML twig queries processing We propose a new structure to present multiple twig patterns We also design a novel algorithm to process multiple twig queries ... index XML documents and match XML twig queries and how to find whether multiple XML twig patterns occur in an XML document, but no research has focus...

Ngày tải lên: 05/10/2015, 19:02

... makes efficient processing of flexible categorial grammar problematic, since quite often there is an exponential growth of the number of possible derivations, relative to the length of the string ... Efficient Processing of Combinatory Categorial Grammars Proceedings of the 25th Annual Meeting of the Association for Computational Linguistics, Stanford University, 73-80...

Ngày tải lên: 24/03/2014, 05:21

... Sheng Chang, Sun Jie, Wang Xiaoli, Wu Huayu, Wu Ji, Wu Jun, Wu Sai, Wu Wei, Yang Fei, Xiang Shili, Xu Liang, Xue Mingqiang, Ying Shanshan, Zhang Dongxiang, Zhang Jingbo, Zhang Meihui and Zhang Zhenjie ... novel query ranking model to quantify the confidence of a refined query (RQ) candidate, which can capture the morphological/semantical similarity between Q and RQ and the dependency of...

Ngày tải lên: 10/09/2015, 15:52

... EFFICIENT PROCESSING OF KNN AND SKYJOIN QUERIES HU JING (B.Sc.(Hons.) NUS) A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF SCIENCE DEPARTMENT OF COMPUTER SCIENCE NATIONAL UNIVERSITY OF SINGAPORE ... high-dimensional KNN searching and skyline query processing Chapter introduces and discusses our first approach to KNN searching, the Diagonal Ordering, and Chapte...

Ngày tải lên: 05/10/2015, 19:02

... optimal query class is essentially enlarged 1.6 Contribution The main contributions of this thesis are in two areas: enhancement of the similarity query and the twig pattern query on XML data The contribution ... Representation of DOM Model of XML Data In order to research the characteristics of XML data, we need the formalized data model In this thesis, XML...

Ngày tải lên: 12/09/2015, 10:37

... 20 Human Motion Sequences 20 2.1.1 Feature extraction of human motion sequences 21 2.1.2 Matching human motion sequences 21 Distance Measures of Time ... the problems of efficient and effective query processing of complex spatio-temporal sequences Our solutions on subsequence matching and subsequence join techniques over human motion sequences can ......

Ngày tải lên: 14/09/2015, 14:05

... This thesis examines general form keyword search queries in XML data The keyword search for XML documents are important as XML has become the standard for representing web data Existing approaches ... is the original motivation of our work that we intend to develop an efficient approach of processing AND- OR keyword search queries in general form, i.e an...

Ngày tải lên: 05/10/2015, 19:02

... Figure 1.3 shows the twig query pattern Car // cc 2.2L Node of XML Tree Make toyota Value of the parent Node Figure 1.3: Example of a Twig query Twig queries [9] (tree pattern queries) have been ... types of updates can occur in any XML database Deletion of an entire subtree of N Deletion of a partial(intermediate) subtree of N 29 Insert of subtree at a leaf node or...

Ngày tải lên: 09/10/2015, 11:24

... Strings and Pattern Matching ̈ ̈ Brute Force, Rabin-Karp, Knuth-Morris-Pratt Regular Expressions Dương Anh ... chuỗi mẫu P T báo if (text letter == pattern letter) so sánh text letter kế với pattern letter kế nh else chuyển pattern dòch sang phải letter until (tìm thấy toàn pattern đến cuối text) Dương Anh ... //không khớp, ,nhưng liệu else if j > then //không khớp liệu j f(j-...

Ngày tải lên: 18/09/2013, 21:53

... Christiansen, and Jon Orwant (O'Reilly) Mastering Regular Expressions, by Jeffrey E.F Friedl (O'Reilly), is another excellent source of information on regular expressions 10.1.1 Literal Characters As we've ... subsequent characters are never even considered 10.1.4 Alternation, Grouping, and References The regular expression grammar includes special characters for specifying alternatives, g...

Ngày tải lên: 05/10/2013, 13:20

... disadvantages of using XML ! Describe the structure of an XML document ! Create a simple XML document ! List some of the issues associated with designing XML documents 2 Module 1: Overview of XML Documents ... aspects of XML to use in their applications Module 1: Overview of XML Documents 17 Uses of XML Slide Objective To highlight some of th...

Ngày tải lên: 22/10/2013, 16:15

... ?> < ?xml version="1.0" ?> XML definitions… XML definitions… < /XML> < /XML> Reference an XML file SRC="MyXmlData .xml" > < /XML> < /XML> ... schemas Module 2: Overview of XML Technologies # XML Technologies: The Big Picture Slide Objective To provide an overview of XML technologies and their roles in the life cycle of an XML document ... code: < ?xml versio...

Ngày tải lên: 26/10/2013, 23:15

... systematic pricing errors, namely underpricing of short-term deep OTM options, overpricing of long-term deep OTM options, and underpricing of deep ITM options This is consistent with our diagnostics of ... risk) with stochastic interest rates; (ii) the SV model of stock returns with non -stochastic risk-free interest rates; (iii) the stochastic interest...

Ngày tải lên: 21/12/2013, 01:20