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Optimizing XML querying using type-based document projection [article]

Véronique Benzaken and Giuseppe Castagna and Dario Colazzo and Kim Nguyen
2011 arXiv   pre-print
In this article, we propose a new approach, based on types, that greatly improves current solutions.  ...  XML data projection (or pruning) is a natural optimization for main memory query engines: given a query Q over a document D, the subtrees of D that are not necessary to evaluate Q are pruned, thus producing  ...  Even so, the use of type-based document projection often improves query answering time.  ... 
arXiv:1104.2079v1 fatcat:7mi5yj4zunhibm7isw7k7cvgyq

Optimizing XML querying using type-based document projection

Véronique Benzaken, Giuseppe Castagna, Dario Colazzo, Kim Nguy˜ˆen
2013 ACM Transactions on Database Systems  
In this article, we propose a new approach, based on types, that greatly improves current solutions.  ...  XML data projection (or pruning) is a natural optimization for main memory query engines: given a query Q over a document D, the subtrees of D that are not necessary to evaluate Q are pruned, thus producing  ...  A type projector for a given type describes a particular pruning for XML documents of that type, that is, a type driven projection: Definition 3.2 (Type Driven Projections).  ... 
doi:10.1145/2445583.2445587 fatcat:zas7c5zpn5evrh6lhq5hsab4bu

Inter-organizational Business Process Management with XML Nets [chapter]

Kirsten Lenz, Andreas Oberweis
2003 Lecture Notes in Computer Science  
XML nets are based on GXSL, a novel graphical XML schema definition language, and its related graphical XML document manipulation language XManiLa.  ...  Due to the fast growth of internet based electronic business activities, languages for modeling as well as methods for analyzing and executing distributed business processes are becoming more and more  ...  The document of type planned project is deleted and a new document of type running project, including the department ID, is created.  ... 
doi:10.1007/978-3-540-40022-6_12 fatcat:ydmvipe6c5cu3cm22funuv4e3m

XML-Based Schemes for Business Project Portfolio Selection [chapter]

Jichang Dong, K. K. Lai, Shouyang Wang
2005 Lecture Notes in Computer Science  
This paper, however, provides several XML-based schemes for building efficient and flexible project portfolio selection systems based on an integrated portfolio selection model proposed.  ...  Many methodologies have been introduced to deal with project portfolio selection problem including some techniques that help to evaluate individual projects, or to select a portfolio among available projects  ...  We can use an HTTP/XML-based approach, and construct a document type definition (DTD) for data structures.  ... 
doi:10.1007/978-3-540-30537-8_28 fatcat:drc4t6i7ffd5feiton3pekpxke

Types and Constraints: From Relational to XML Data [chapter]

Nicole L. Bidoit-Tollu
2011 Lecture Notes in Computer Science  
These methods are all based on static type analysis. The aim of the article is to show how types rank before constraints for XML data processing and the presentation of each method is kept informal.  ...  The goal of this article is to show that, in the context of XML data processing, information conveyed by schema or XML types is a powerful component to deploy optimization methods.  ...  This work has been partially supported by the Codex ANR-08-DEFIS-004 project.  ... 
doi:10.1007/978-3-642-23441-5_3 fatcat:ymhwy4pgwzcbxcjtc6v26cv3gm

On View Transformation Support for a Native XML DBMS [chapter]

Daofeng Luo, Ting Chen, Tok Wang Ling, Xiaofeng Meng
2004 Lecture Notes in Computer Science  
In schema-based view transformation, users define view schema over sources to obtain view results.  ...  XML is becoming the standard data exchange format. View transformation of XML data is important and frequent operation in XML data integration and publishing.  ...  Most noticeably, our algorithm performs transformation for (a) Structural join cluster Paper and Researcher (b) Dupli-Merge based on Paper keys (c) Structural join cluster Paper and Project (d) Merge based  ... 
doi:10.1007/978-3-540-24571-1_20 fatcat:bldupun3pvb6xca63oyza6rrtm

A Java-based digital library portal for geography education

Zehua Liu, Hai Yu, Ee-Peng Lim, Ming Yin, Dion Hoe-Lian Goh, Yin-Leng Theng, Wee-Keong Ng
2004 Science of Computer Programming  
In addition to providing a flexible repository subsystem to accommodate metadata of different formats using XML and XML Schemas, G-Portal organizes metadata into projects and layers, and supports an integrated  ...  G-Portal is a Java-based digital library system for managing the metadata of geography related resources on the Web.  ...  Acknowledgements This work is funded by the SingAREN Project M48020004.  ... 
doi:10.1016/j.scico.2004.02.007 fatcat:fylc7vt6erg2xg3rppystfs6di

Object-Z web environment and projections to UML

Jing Sun, Jin Song Dong, Jing Liu, Hai Wang
2001 Proceedings of the tenth international conference on World Wide Web - WWW '01  
The projection techniques and tools from Object-Z (in XML) to UML (in XMI) are developed using XSL Transformations (XSLT).  ...  This paper presents the XML/XSL approach to the development o f a w eb environment for the formal speci cation language Object-Z.  ...  For example, the XSL codes for implementing inheritance expansion in Section 5 is based on the expand function de ned in Section 3.1 the XSLT codes for projecting Object-Z to UML in Section 6 is based  ... 
doi:10.1145/371920.372189 dblp:conf/www/SunDLW01 fatcat:rclu4onwyza4tmmarfa3h3o67e

XML-based information mediation for digital libraries

Chaitanya Baru, Vincent Chu, Amarnath Gupta, Bertram Ludäscher, Richard Marciano, Yannis Papakonstantinou, Pavel Velikhov
1999 Proceedings of the fourth ACM conference on Digital libraries - DL '99  
The architecture is based on XML-based modeling of metadata; use of an XML query language, and associated mediator middleware, to query distributed metadata sources; and the use of a storage system middleware  ...  We demonstrate a prototype distributed architecture for a digital library, using technology being developed under the MIX Project at the San Diego Supercomputer Center (SDSC) and the University of California  ...  ACKNOWLEDGMENTS The CDL/AMICO testbed is a joint project between SDSC and CDL and involves several other participants including, Joan Gargano, Robert Brandriff, and Ken Weiss, from CDL; Susan Jurist from  ... 
doi:10.1145/313238.313321 dblp:conf/dl/BaruCGLMPV99 fatcat:7ybk2xjfwjfyjg7aybnb5j4o2u

An XML metadata approach to seamless project information exchange between heterogeneous platforms

Jason Underwood, Alastair Watson
2003 Engineering Construction and Architectural Management  
of two demonstrators for XML based automated document exchange between a simulation of a Corporate Document Management System and a simulation of a Collaborative Construction Project Web Site.  ...  This paper presents work undertaken within the project to investigate the various Metadata standards that exist in order to define a minimum Metadata set based on these standards for the implementation  ...  The work presented within this paper is part of the ProCure ESPRIT project 29948 funded by the European Commission.  ... 
doi:10.1108/09699980310466604 fatcat:p3ikwqk4hrbujhqycjwsnbqhnq

Using XML in a compiler course

D. Robert Adams, Christian Trefftz
2004 Proceedings of the 9th annual SIGCSE conference on Innovation and technology in computer science education - ITiCSE '04  
We then goes on to demonstrate how XML was used in two recent compiler courses. Finally, we discuss the tradeoffs of using an XML-based project rather than a traditional programminglanguage project.  ...  We make the case that XML and compilers have much in common, and that introducing XML into a compiler course makes sense.  ...  However, the XML-based project emphasizes the same basic idea: traversing a parse tree and evaluating some property of the nodes.  ... 
doi:10.1145/1007996.1008001 dblp:conf/iticse/AdamsT04 fatcat:537kuez56jb33i4jgvvezkhgce

Using XML in a compiler course

D. Robert Adams, Christian Trefftz
2004 ACM SIGCSE Bulletin  
We then goes on to demonstrate how XML was used in two recent compiler courses. Finally, we discuss the tradeoffs of using an XML-based project rather than a traditional programminglanguage project.  ...  We make the case that XML and compilers have much in common, and that introducing XML into a compiler course makes sense.  ...  However, the XML-based project emphasizes the same basic idea: traversing a parse tree and evaluating some property of the nodes.  ... 
doi:10.1145/1026487.1008001 fatcat:7tlkf5kqlvfzhn3fnp3kium6zu

A Study of Language Usage Evolution in Open Source Software [article]

Siim Karus, Harald Gall
2011 arXiv   pre-print
In fact, a developer works with more than 5 different artefact types (or 4 different languages) in a project on average.  ...  Based on the revision data of 22 OSS projects, we tracked the evolution of language usage and other artefacts such as documentation files, binaries and graphics files.  ...  This could be related to more widespread adoption of XML standards and XML replacing Makefile based building environments. Java Developers.  ... 
arXiv:1102.2262v1 fatcat:q6h4ym5mvbgv3ohkkoroayeguu

Discovering Semantics from Data-Centric XML [chapter]

Luochen Li, Thuy Ngoc Le, Huayu Wu, Tok Wang Ling, Stéphane Bressan
2013 Lecture Notes in Computer Science  
underlying XML schemas and data.  ...  The Object-Relationship-Attribute model for Semi-Structured data (ORA-SS) model is a conceptual model intended to capture the semantics of object classes, object identifiers, relationship types, etc.,  ...  Otherwise, the root node will be returned by most LCA-based XML keyword search approaches [12] .  ... 
doi:10.1007/978-3-642-40285-2_10 fatcat:t32yhzs6bvdbzkunx4yd7ymx44

XML Schema-Based Minification for Communication of Security Information and Event Management (SIEM) Systems in Cloud Environments

Bishoy Moussa, Mahmoud Mostafa, Mahmoud El-Khouly
2014 International Journal of Advanced Computer Science and Applications  
This paper discusses these techniques and proposes a new XML Schema-based Minification technique. The proposed technique works on XML Structure reduction using minification.  ...  XML-based communication governs most of today's systems communication, due to its capability of representing complex structural and hierarchical data.  ...  Based on the serialization type, communication can occur using shorter XML messages, or even shorter JSON messages.  ... 
doi:10.14569/ijacsa.2014.050912 fatcat:2dar4gpvzfdltfosyqky3qe65a
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