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Enhancing XML Data Warehouse Query Performance by Fragmentation [article]

Hadj Mahboubi
2009 arXiv   pre-print
In relational data warehouses, several studies recommend the use of derived horizontal fragmentation. Hence, we propose to adapt it to the XML context.  ...  We particularly focus on the initial horizontal fragmentation of dimensions' XML documents and exploit two alternative algorithms.  ...  Finally, Wu and Buchmaan recommend to combine horizontal and vertical fragmentation for query optimization [24] .  ... 
arXiv:0908.3957v1 fatcat:w4spkdssxjfe7obliv42ewezvy

Enhancing XML data warehouse query performance by fragmentation

Hadj Mahboubi, Jérôme Darmont
2009 Proceedings of the 2009 ACM symposium on Applied Computing - SAC '09  
In relational data warehouses, several studies recommend the use of derived horizontal fragmentation. Hence, we propose to adapt it to the XML context.  ...  We particularly focus on the initial horizontal fragmentation of dimensions' XML documents and exploit two alternative algorithms.  ...  Finally, Wu and Buchmaan recommend to combine horizontal and vertical fragmentation for query optimization [24] .  ... 
doi:10.1145/1529282.1529630 dblp:conf/sac/MahboubiD09 fatcat:2khly6tcqrawnpfiinalt2nvbm

Data Mining-based Fragmentation of XML Data Warehouses [article]

Hadj Mahboubi
2008 arXiv   pre-print
Derived horizontal fragmentation is typically used in relational data warehouses and can definitely be adapted to the XML context.  ...  We experimentally compare its efficiency to classical derived horizontal fragmentation algorithms adapted to XML data warehouses and show its superiority.  ...  Finally, Wu and Buchmaan recommend to combine horizontal and vertical fragmentation for query optimization [38] . A fact table can be horizontally partitioned with respect to one or more dimensions.  ... 
arXiv:0811.0741v1 fatcat:mxfgybhr45buffdol72gnlw4uu

Data mining-based fragmentation of XML data warehouses

Hadj Mahboubi, Jérôme Darmont
2008 Proceeding of the ACM 11th international workshop on Data warehousing and OLAP - DOLAP '08  
Derived horizontal fragmentation is typically used in relational data warehouses and can definitely be adapted to the XML context.  ...  We experimentally compare its efficiency to classical derived horizontal fragmentation algorithms adapted to XML data warehouses and show its superiority.  ...  Finally, Wu and Buchmaan recommend to combine horizontal and vertical fragmentation for query optimization [38] . A fact table can be horizontally partitioned with respect to one or more dimensions.  ... 
doi:10.1145/1458432.1458435 dblp:conf/dolap/MahboubiD08 fatcat:zeypfx4hq5c5nis3sh44tf6oem

Fragmenting very large XML data warehouses via K-means clustering algorithm

Alfredo Cuzzocrea, Jerome Darmont, Hadj Mahboubi
2009 International Journal of Business Intelligence and Data Mining  
derived horizontal fragmentation algorithms adapted to XML data warehouses.  ...  Derived horizontal fragmentation is already used in relational data warehouses, and can definitely be adapted to the XML context.  ...  Wu and Buchmaan [78] recommend to combine horizontal and vertical fragmentation for query optimization purposes.  ... 
doi:10.1504/ijbidm.2009.029076 fatcat:wve3gtsfmnccvl2mnrp3q7ft3e

From Legacy Documents to XML: A Conversion Framework [chapter]

Jean-Pierre Chanod, Boris Chidlovskii, Hervé Dejean, Olivier Fambon, Jérôme Fuselier, Thierry Jacquin, Jean-Luc Meunier
2005 Lecture Notes in Computer Science  
We present an integrated framework for the document conversion from legacy formats to XML format.  ...  Conclusion and Future Work We have presented the Legacy Document Conversion project for automating the conversion of legacy documents to XML according to the generic or domain-specific schema descriptions  ...  Finally, we intend to propose a high-level description language allowing to define and validate the conversion chain for any individual conversion task.  ... 
doi:10.1007/11551362_9 fatcat:eoks3vrmijgknl4d4hqko6requ

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

Kirsten Lenz, Andreas Oberweis
2003 Lecture Notes in Computer Science  
XML nets support the identification of relevant process fragments and their allocation to the appropriate organizational units.  ...  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  ...  In [14] three types of decomposition are described based on the dependencies between the fragments (i.e. the data flow in the global net): vertical, e.g. for sequential processes, horizontal as for alternative  ... 
doi:10.1007/978-3-540-40022-6_12 fatcat:ydmvipe6c5cu3cm22funuv4e3m

Evaluating Web Services Functionality and Performance

Tarek S. Sobh, Medhat Fakhry
2014 International Journal of Information Technology and Computer Science  
This work presents WS application to access heterogeneous and distributed database via horizontal data fragments that is designed to be reliable, flexible and scalable.  ...  It describes the setup of SOAP server and applications based on the SOAP for end user client.  ...  We have introduced WS application for retrieval information system over distributed and horizontal fragmentations.  ... 
doi:10.5815/ijitcs.2014.05.03 fatcat:dme5pvoalndf7bsmrdwxqwp6ne

Immersive Molecular Dynamics in Virtual Reality: Increasing Efficiency of Educational Process with Companion Converter for NarupaXR

Polina Pereshivkina, Nadezhda Karandasheva, Maria Mikhaylenko, Mikhail Kurushkin
2021 Journal of Imaging  
Implementing computer algorithms and virtual reality tools into it is vital for the new generation engineers, scientists and researchers.  ...  The present short communication provides a summary of these applications based on the NarupaXR program, which is a great educational tool that combines the functionality and simple design necessary for  ...  can be added by moving the desired fragment to the Users Fragments folder and choosing this option; Build Atom-opens a panel for selecting the atom to build; Connect-builds chemical bonds between individual  ... 
doi:10.3390/jimaging7060097 fatcat:7v5z2yngafglzpbfazm67teuwy

XML-based Reference Modelling: Foundations of an EPC Markup Language [chapter]

Jan Mendling, Markus Nüttgens
2004 Referenzmodellierung  
We gather findings from other XML standardisation initiatives and derive general EPML design principles, as well as theoretical and practical XML design guidelines.  ...  But in order to leverage the benefits of XML model interchange, standardised vocabularies have to be developed.  ...  X12 recommends the usage of attributes for metadata and elements for application data [ANSI02] .  ... 
doi:10.1007/978-3-7908-2698-2_3 fatcat:7ojgz3nypzfv7od3mt7rowdghq

Projective Distribution of XQuery with Updates

Ying Zhang, Nan Tang, Peter Boncz
2010 IEEE Transactions on Knowledge and Data Engineering  
The pass-by-fragment semantics is subsequently refined to a pass-byprojection semantics by means of a novel runtime XML projection technique, which safely eliminates most semantic differences between the  ...  The main challenge addressed here is to ensure that the decomposed queries properly respect XML node identity and preserve structural properties, when (parts of) XML nodes are sent over the network, effectively  ...  Our only requirement for peers to participate is running an XML database system (XDBMS) that complies with these W3C recommendations.  ... 
doi:10.1109/tkde.2010.62 fatcat:5gjrrihjz5fanlwlw5fgl3mcfu

Prototype Web-Based Construction Project Management System

Swee-Lean Chan, Nga-Na Leung
2004 Journal of construction engineering and management  
This paper presents a conceptual model of metadata-based information system for data exchange among Web-based documents for construction project management.  ...  Implementation of the conceptual model applies eXtensible Markup Language (XML) technology. Discussions on major concerns about information security, data accessibility, and service quality are given.  ...  Functionally, project partners assume different roles (horizontal fragmentation) throughout the entire construction process (vertical fragmentation) (Howard et al., 1989) .  ... 
doi:10.1061/(asce)0733-9364(2004)130:6(935) fatcat:wtdioghfazfyjgccz27txddllq

Horizontal and Vertical Factors Influencing the Adoption of Web Services

A.P. Ciganek, M.N. Haines, W. Haseman
2006 Proceedings of the 39th Annual Hawaii International Conference on System Sciences (HICSS'06)  
While Web services at their core are a horizontal or cross-industry technology, the findings of this exploratory study suggest that there are important vertical or industry specific factors that can either  ...  For each case a minimum of two participants were selected based on the recommendations of our contact person.  ...  Its primary motivation to move towards Web services was to provide a standard platform for development, provide a method for integration of the various systems, and support its desire to reuse code.  ... 
doi:10.1109/hicss.2006.202 dblp:conf/hicss/CiganekHH06 fatcat:erzem6kj7bhhvgbpbomju6e3u4

GRB_WAPI, a RESTful Framework for Grid Portals

Valerio De Luca, Italo Epicoco, Daniele Lezzi, Giovanni Aloisioa
2012 Procedia Computer Science  
This paper describes a RESTful Web API, named GRB_WAPI, specifically developed for grid computing that encapsulates all grid control and computation logic need to build a grid portal.  ...  The so called Hi-REST recommendations suggests the use of all the four HTTP methods and the use of Plain Old XML (POX) for formatting the content of messages.  ...  invokes a GRB WAPI remote call on the WEB API Server, which sends back an XML fragment containing elaboration result. • It applies an XSL stylesheet to the XML fragment to execute an XSLT transformation  ... 
doi:10.1016/j.procs.2012.04.049 fatcat:a7bjgaioszdgzbi4izxnb426yi

Storing XML (with XSD) in SQL databases: interplay of logical and physical designs

S. Chaudhuri, Z. Chen, K. Shim, Y. Wu
2005 IEEE Transactions on Knowledge and Data Engineering  
Her research covers XML data storage, XML indexing, query processing, query optimization, query parsing and rewriting, and focuses on cost-based query optimization of XML queries.  ...  Much of business XML data has accompanying XSD specifications. In many scenarios, "shredding" such XML data into a relational storage is a popular paradigm.  ...  One approach towards supporting XPath 1 over such XML data is building native XML repository [2] .  ... 
doi:10.1109/tkde.2005.204 fatcat:uk7kejbitjaqxkvswrafbcoici
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