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Bezencenet, Odile. "Propriétés et couplage d'échange dans le système modèle : Co/alpha-Fe2O3." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2008. http://tel.archives-ouvertes.fr/tel-00341003.
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Le phénomène de couplage d'échange est à la base du fonctionnement des capteurs magnétiques modernes ainsi que des futures mémoires magnétiques non volatiles. Bien que ce phénomène ait été découvert il y a plus de 50 ans et que son principe soit déjà utilisé pour des applications industrielles, les mécanismes physiques mis en jeu ne sont pas entièrement compris. Dans ce contexte, nous avons choisi d'étudier le système Co/alpha-Fe2O3 qui peut être considéré comme un système modèle ferromagnétique/antiferromagnétique pour l'étude du couplage d'échange.<br />Les films d'hématite (alpha-Fe2O3) ont été élaborés par épitaxie par jet moléculaire assistée par plasma d'oxygène atomique et ensuite caractérisés avec les techniques usuelles de surface réalisées sous ultra-vide au laboratoire. La croissance, la structure ainsi que les propriétés magnétiques des films minces d'hématite ont été étudiées en détail par de nombreuses expériences réalisées sur grands instruments (rayonnement synchrotron et diffusion de neutrons). Le cobalt est ensuite déposé in-situ sur ces films d'hématite d'une épaisseur de 20 nm. Les différentes expériences ont mené à une description détaillée du magnétisme (moment magnétique, aimantation, domaines...) ainsi qu'à une caractérisation fine du système Co/alpha-Fe2O3 (structure, morphologie...). Une attention particulière a été portée à la description de l'interface, élément déterminant du couplage d'échange. Ce travail expérimental repose sur l'utilisation d'un vaste ensemble de techniques de laboratoire (AES, XPS, RHEED, LEED, MOKE, VSM) complété par des expériences utilisant le rayonnement synchrotron (XAS, XMLD, XMCD, X-PEEM, GIXD, GISAXS) et la diffusion des neutrons.
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Li, Weibin. "Local Signature of Kondo Interaction Probed by XMCD in Rare Earths Intermetallic Compounds." Electronic Thesis or Diss., Sorbonne université, 2022. http://www.theses.fr/2022SORUS094.
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Cette thèse doctorale étudie l’effet Kondo des composés de terre rare par spectroscopie d’absorption des rayons X (XAS). Deux systèmes intermétalliques dilués : un système non-Kondo d’Er0.025Pd0.975 et un système Kondo d’Yb0.005Au0.995 ont été mesurés par XAS avec des rayons X polarisés circulairement sous champ magnétique fort et aussi en champ magnétique faible pour une température variant de 0.2 K à 300 K. Les signaux de dichroïsme circulaire magnétique de rayons X (XMCD) et les spectres de dichroïsme linéaire magnétique de rayons X (XMLD) ont été extraits. Les moments magnétiques de spin et d'orbite ont été obtenus par application des règles de somme magnéto-optiques. Des calculs dans le cadre de la théorie des multiplets en champ de ligands (LFM) ont été faits pour simuler les signaux expérimentaux et ainsi remonter aux propriétés magnétiques. Dans le système Kondo, celui de l’ytterbium dans l’or, on observe pour des champs magnétiques ≤ 0.5 T et des températures inférieures à 1 K une différence prononcée entre l’aimantation attendue pour un atome isolé et celle observée expérimentalement : c’est le signe de l’effet Kondo. Pour arriver aux objectifs expérimentaux, une partie de travail de cette thèse a été consacrée à des développements instrumentaux. Un nouvel insert DICHRO50 qui fonctionne avec la dilution d’3He-4He a été installé dans le cryo-aimant de la ligne DEIMOS du Synchrotron SOLEIL. Cet instrument est développé pour des mesures de XAS, de XMCD ou des XMLD dans le domaine des rayons X mous. Il permet de refroidir un échantillon jusqu’à 180 mK. Un autre cryo-aimant, le TBT-mK, a été installé sur la ligne ID12 à l'ESRF où j’ai participé à des mesures de XMCD dans le domaine des rayons X durs<br>This doctoral thesis studies the Kondo effect of rare earth compounds measured by X-ray absorption spectroscopy (XAS). Two diluted intermetallic systems: A non-Kondo system Er0.025Pd0.975 and a Kondo system Yb0.005Au0.995 have been measured by XAS with circular polarized X-ray under strong magnetic field and weak magnetic field for temperatures from 0.2 K to 300 K. X-ray Magnetic Circular Dichroism (XMCD) spectra and X-ray Magnetic Linear Dichroism (XMLD) spectra have been extracted. The magnetic moment of the spin and of the orbit of the diluted impurity atom are obtained by applying the magneto-optical sum rules. Calculations by Ligand Field Multiplet (LFM) theory are performed to simulate the magnetic properties. The comparison between the Kondo system and the non-Kondo system, as well as the experimental measurements and the simulations allows the discovery of the local Kondo signature around the critical Kondo temperature TK for the Kondo system Yb0.005Au0.995. To achieve the experimental objective, part of this thesis has been devoted to instrumental developments. Hence a new 3He-4He dilution insert, named DICHRO50 which is able to cool the sample down to 180 mK, has been installed in the cryomagnet of DEIMOS beamline at Synchrotron SOLEIL; it is aimed to soft X-ray XAS-XMCD measurements. Moreover, a former dilution insert hosted in so-called TBT-mK cryomagnet has been upgraded to be installed on ID12 beamline at ESRF; it is aimed for hard X-ray XAS-XMCD measurements
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Karlsson, Mathias. "Sales Information Provider." Thesis, Linköping University, Department of Science and Technology, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-7174.
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<p>Sammanfattning, max 25 rader. :</p><p>Denna rapport utreder möjligheten till att ta in stora mängder data in i en databas och göra sammanslagningar. Detta för att sedan skicka en mängd data på ett smidigt sätt till en klient som ska bearbeta datat. Arbetet sträcker sig från databas till ett API möjligt att implementera i en applikation som önskar hämta informationen. Arbetet innebär en intelligent hämtning av data för visualisering. Det är ett av två examensarbeten som ligger till grund för en visualisering av försäljningsdata för sportbutikskedjan Stadium AB. Stadium AB har idag ca 80 butiker, vilket innebär en stor försäljning per vecka. Tanken är att detta ex-jobb tillsammans med det parallellt gående ex-jobbet ska vara till hjälp för Stadium AB vid inköp av produkter till nästkommande säsonger. Det ex-jobb som löpte parallellt med detta visualiserar mängden av produkter som säljs för en viss tidpunkt vilket ger Stadium möjlighet att se vilka tidpunkter de har för lite produkter i butiken samt när de har för mycket produkter. Detta ex-jobb ska förse visualiseringsapplikationen med den information som krävs. Sales Data Provider, som applikationen heter, bygger på en datalager lösning som grund. Den innehåller beräknade försäljningsdata på olika nivåer för att lätt kunna gräva sig ner i hierarkin och se information om hur olika produkter säljer. Som transportmedel från datalager till klient använder den Web Services med XML som media, för att möjliggöra en distans mellan datalager och klient. Dessutom innehåller den en logisk klient som tar hand om alla anrop mot Web Servicen och exponerar ett API som visualiseringsapplikationen kan använda sig av. Klienten innehåller både logik för att hämta data från Web Servicen och att exponera data genom en objektmodell.</p>
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Boman, Maria. "XML/EDI - EDI med XML-format?" Thesis, University of Skövde, Department of Computer Science, 2000. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-422.
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<p>Electronic data interchange (EDI) är en teknik vilken används för att utbyta elektroniska dokument mellan köpare och säljare. Dessa dokument överförs på en strikt elektronisk standardiserad väg, dokumenten kan vara fakturor, beställningsformulär, leveransplaner etc. EDI har funnits i över 25år och är vida spridd över världen. För att använda EDI krävs det stora resurser i form av kapital och kunskap. Små och medelstora företag har ofta inte de resurser som krävs för att kunna använda EDI.</p><p>Nya tekniker utvecklas ständigt. Extensibel Markup Language (XML) är en ny teknik vilken är avsedd att användas främst på Internet. XML delar upp dokumenten med hjälp av etiketter vilket hjälper läsaren att identifiera innehållet i dokumenten. XML har väckt EDI-samhällets intresse då XML anses ha kapaciteten att kunna användas som ett EDI-format samtidigt som XML är Internetanpassat vilket betyder att EDI enklare skulle kunna användas på Internet.</p><p>I mitt examensarbete har jag utrett om EDI-användande företag avser använda XML/EDI. Jag har genomfört intervjuer för att besvara problemformuleringen. Resultaten jag kommit fram till är att företagen avser använda XML/EDI om en ordentlig standard blir framtagen. Företagen är dessutom positivt inställda till XML/EDI samt Internetbaserad EDI. Anledningen till den positiva inställningen är främst att XML/EDI samt Internetbaserad EDI skulle innebära lägre kostnader vilket i sin tur skulle innebära att även små och medelstora företag skulle kunna använda tekniken.</p>
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Horbach, Jan. "XML-RPC - RPC mit HTTP/XML." Universitätsbibliothek Chemnitz, 2000. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-200000336.
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Gemeinsamer Workshop von Universitaetsrechenzentrum und
Professur Rechnernetze und verteilte Systeme (Fakultaet fuer
Informatik) der TU Chemnitz.
Workshop-Thema: Infrastruktur der ¨Digitalen Universitaet¨
Dieser Vortrag beschaeftigt sich mit dem Remote Procedure
Call Protokoll XML-RPC, welches auf der Basis von XML und
HTTP arbeitet.
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Tran, Tien. "XML clustering and its application to XML transformation." Thesis, Queensland University of Technology, 2013. https://eprints.qut.edu.au/64457/1/Tien_Tran_Thesis.pdf.
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The continuous growth of the XML data poses a great concern in the area of XML data management. The need for processing large amounts of XML data brings complications to many applications, such as information retrieval, data integration and many others.
One way of simplifying this problem is to break the massive amount of data into smaller groups by application of clustering techniques. However, XML clustering is an intricate task that may involve the processing of both the structure and the content of XML data in order to identify similar XML data.
This research presents four clustering methods, two methods utilizing the structure of XML documents and the other two utilizing both the structure and the content. The two structural clustering methods have different data models. One is based on a path model and other is based on a tree model. These methods employ rigid similarity measures which aim to identifying corresponding elements between documents with different or similar underlying structure.
The two clustering methods that utilize both the structural and content information vary in terms of how the structure and content similarity are combined. One clustering method calculates the document similarity by using a linear weighting combination strategy of structure and content similarities. The content similarity in this clustering method is based on a semantic kernel. The other method calculates the distance between documents by a non-linear combination of the structure and content of XML documents using a semantic kernel.
Empirical analysis shows that the structure-only clustering method based on the tree model is more scalable than the structure-only clustering method based on the path model as the tree similarity measure for the tree model does not need to visit the parents of an element many times. Experimental results also show that the clustering methods perform better with the inclusion of the content information on most test document collections.
To further the research, the structural clustering method based on tree model is extended and employed in XML transformation. The results from the experiments show that the proposed transformation process is faster than the traditional transformation system that translates and converts the source XML documents sequentially. Also, the schema matching process of XML transformation produces a better matching result in a shorter time.
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Riedel, Wolfgang. "XML - Anwendungen." Universitätsbibliothek Chemnitz, 1998. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-199801519.
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Philippe, Marie. "XML Schema." [S.l.] : [s.n.], 2002. http://www.enssib.fr/bibliotheque/documents/dessride/rrbphilippe.pdf.
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Liu, Baolong. "XML security in XML data integrity, authentication, and confidentiality." Thesis, University of Huddersfield, 2010. http://eprints.hud.ac.uk/id/eprint/9671/.
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The widely application of XML has increasingly required high security. XML security confronts some challenges that are strong relating to its features. XML data integrity needs to protect element location information and contextreferential meaning as well as data content integrity under fine-grained security situations. XML data authentication must satisfy a signing process under a dependent and independent multi-signature generation scenario. When several different sections are encrypted within the XML data, it cannot query the encrypted contents without decrypting the encrypted portions. The technologies relating to XML security demand further development. This thesis aims to improve XML security relative technologies, and make them more practicable and secure. A novel revocation information validation approach for X.509 certificate is proposed based on the XML digital signature technology. This approach reduces the complexity of XKMS or PKI systems because it eliminates the requirement for additional revocation checking from XKMS or CA. The communication burden between server and client could be alleviated. The thesis presents the context-referential integrity for XML data. An integrity solution for XML data is also proposed based on the concatenated hash function. The integrity model proposed not only ensures XML data content integrity, but also protects the structure integrity and elements’ context relationship within an XML data. If this model is integrated into XML signature technology, the signature cannot be copied to another document still keeping valid. A new series-parallel XML multi-signature scheme is proposed. The presented scheme is a mixed order specified XML multi-signature scheme according to a dependent and independent signing process. Using presented XML data integrity-checking pool to provide integrity-checking for decomposed XML data, it makes signing XPath expression practicable, rather than signing XML data itself. A new labeling scheme for encrypted XML data is presented to improve the efficiency of index information maintenance which is applied to support encrypted XML data query processing. The proposed labelling scheme makes maintenance index information more efficient, and it is easy to update XML data with decreasing the number of affected nodes to the lowest. In order to protect structural information for encrypted XML data, the encrypted nodes are removed from original XML data, and structural information is hidden. A case study is carried out to demonstrate how the proposed XML security relative approaches and schemes can be applied to satisfy fine-grained XML security in calibration certificate management.
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Saude, Andre Vital. "Gerador automatico de editores XML baseado no XML schema." [s.n.], 2003. http://repositorio.unicamp.br/jspui/handle/REPOSIP/259795.
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Orientador: Roberto de Alencar Lotufo<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação<br>Made available in DSpace on 2018-08-03T19:17:32Z (GMT). No. of bitstreams: 1
Saude_AndreVital_M.pdf: 1540852 bytes, checksum: ad2ecda7f7d3f26db74368ec25d80598 (MD5)
Previous issue date: 2003<br>Mestrado
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Čižinská, Martina. "Srovnání nativních XML databází z hlediska správy XML dat." Master's thesis, Vysoká škola ekonomická v Praze, 2013. http://www.nusl.cz/ntk/nusl-199568.
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The basis of my work represents a research focused on the problematic of native XML databases. The main goal is to draw comparison between the selected database systems in a sphere of user control and management of XML data. Database products are tested via XMark benchmark test using its XQuery queries and testing XML data. Final comparisons and recommendations for use are based on the concluding evaluation and findings. The results of research may improve orientation in solved problematics. They could help with the selection of a suitable database product to store XML data.
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Nilsson, Michaela, and Åsa Runström. "Varför XML? En studie av XML ur ett produktivt perspektiv." Thesis, Blekinge Tekniska Högskola, Institutionen för programvaruteknik och datavetenskap, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-1617.
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XML betyder eXtensible Markup Language och är en metod för att lagra information på ett enkelt, men samtidigt högt strukturerat sätt. XML utvecklades bl.a. för att kunna hantera avancerade hemsidor som t.ex. Internetbanker. Inom IT-branschen är XML ett mycket omtalat ämne och i denna utredning har vi valt att ta reda på varför det är så. Detta har vi gjort genom att studera XML ur ett produktivt perspektiv. Genom att studera XML ur ett produktivt perspektiv vill vi ta reda på om XML underlättar genomförandet och höjer kvaliteten på företagens arbetsuppgifter. För att få fram information om XML och dess produktivitet så har vi läst böcker, artiklar, sökt information på Internet och intervjuat företag. Vi har intervjuat både små och stora företag som arbetar med XML. För att kunna bearbeta den information som vi har samlat in har vi brutit ner produktivitet i mindre delar. Denna nedbrytning har vi gjort enligt boken "Människor - datorinteraktion, Ett psykologiskt perspektiv" av Carl Martin Allwood. De delar av XML som vi har studerat är: · Fungerar funktionerna i XML på ett tillfredsställande sätt och uppfyller de sitt syfte? · Har IT-branschen en positiv inställning till XML? · Finns det några faktorer som underlättar användandet av XML? · Finns det några förkunskaper som underlättar lärandet av XML? Genom vår undersökning har vi kommit fram till att funktionerna i XML fungerar på ett tillfredsställande sätt och att de uppfyller sitt syfte. Detta anser vi för att XML är flexibelt och för att vi inte har funnit några brister. Vi har också kommit fram till att de flesta företag inom IT-branschen är mycket positiva till XML. En egenskap som underlättar användandet är att XML är system- och plattformsoberoende. Något som underlättar när man ska lära sig XML är att ha kunskaper i HTML. Den slutsats som vi kan dra efter vår undersökning är att XML är produktivt.
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Arion, Andrei. "XML access modules : towards physical data independence in XML databases." Paris 11, 2007. http://www.theses.fr/2007PA112288.
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Nous étudions dans cette thèse le problème de l'indépendance physique des données dans les bases de données XML. Dans une première partie de cette thèse nous proposons les modules d'accès XML (XML Access Modules ou XAMs) - un langage de motifs d'arbre conçu pour exprimer un grand sous-ensemble de XQuery, et enrichi avec des noeuds optionnels (permettant de capturer des motifs qui couvrent plusieurs requêtes imbriquées) et des identiants structurels (qui augmentent les possibilités de réécriture). Nous démontrons que ce langage des vues peut être utilise pour décrire uniformément un grand nombre de schémas de stockage, d'index et de vues matérialisées. Dans une deuxième partie de cette thèse nous étudions le problème de la réécriture des requêtes XQuery à travers des vues exprimées par des modules d'accès XML. Dans un premier temps, nous présentons un algorithme capable d'extraire des motifs XAM à partir des requêtes XQuery et nous démontrons l'importance d'utiliser des vues qui peuvent enjamber plusieurs blocs XQuery imbriqués. Par la suite, nous étudions le problème de la réécriture des requêtes en utilisant des vues materialisées, où la requête et les vues sont décrites par des vues XAM. Nous caractérisons la complexité de l'inclusion de motifs d'arbre et de la réécriture des requêtes sous les contraintes exprimées par des résumés structurels, dont une forme augmentée permettra également d'exprimer des contraintes d'intégrité<br>The purpose of this thesis is to design a framework for achieving the goal of physical data independence in XML databases. We first propose the XML Access Modules - a rich tree pattern language featuring multiple returned nodes, nesting, structural identifiers and optional nodes, and we show how it can be used to uniformly describe a large set of XML storage schemes, indices and materialized views. A second part of this thesis focuses on the problem of XQuery rewriting using XML Access Modules. As a first step of our rewriting approach we present an algorithm to extract XML Access Modules patterns from XQuery and we show that the patterns we identify are strictly larger than in previous works, and in particular may span over nested XQuery blocks. We characterize the complexity of tree pattern containment (which is a key subproblem of rewriting) and rewriting itself, under the constraints expressed by a structural summary, whose enhanced form also entails integrity constraints. We also show how to exploit the structural identifiers from the view definitions in order to enhance the rewriting opportunities
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Wang, Ling. "Updating XML views." Link to electronic thesis, 2006. http://www.wpi.edu/Pubs/ETD/Available/etd-082406-013940/.
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Bobadilla, Carlos. "Nycklar i XML." Thesis, University of Skövde, Department of Computer Science, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-517.
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<p>Den huvudsakliga tekniken som använts inom webbutveckling består av märkordspråket HTML men HTMLs funktionalitet är för enkelt för att tillfredställa de kraven på komplexa applikationer. En ny teknik i form av märkordsspråket XML uppkom med tanke på att göra lättare att implementera webbaserade applikationer. XML erbjuder möjligheter att utveckla egna element och utforma egna dokumentstrukturer.</p><p>Relationsdatabaser är sedan många år ett väl fungerande datahanterarsystem. Med tanke på att göra informationen tillgänglig på Internet är det oundvikligt att undersöka om XML kan användas för att lagra en relationsdatabas. Detta arbete har i syfte att teoretisk analysera hur XML hanterar begreppen primär- och främmande-nyckel från relationsdatabaser. Nyckeln är ett viktigt begrepp inom en relationsdatabas sammanhang därför är en bra startpunkt att undersöka om XML klarar en nyckel hantering som i relationsdatabas.</p><p>Flertal teorier har undersökts i denna rapport för att försöka kartlägga de olika förslagen. Efter undersökningen kom författaren till denna rapport fram till att en grupp av de förslagen passar bäst, för att data som lagras i XML, har det inte samma struktur som den data som lagras i relationsdatabaser och på så sätt skiljer sig hanteringen av nycklarna.</p>
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Karlsson, Magnus. "XML to RDBMS." Thesis, KTH, Teleinformatik, 2000. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-93542.
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The Extensible Markup Language (XML) becomes more and more widespread as nearly all major players on the market today have accepted XML as an industry standard for exchanging information between server based products. Thus thousands of XML dialects have emerged since XML 1.0 became a W3C recommendation in February 1998. Corus Technologies AB has developed a server-based product called Corus/ALS© (Application Linking System) that makes it possible to connect client systems with different data representations to each other. A relational database model for each of the client systems is created and the translation from one data representation to another is done with stored procedures in the database. This thesis introduces a solution for how to store and retrieve XML documents in a Relational Database Management System (RDBMS) from any of the XML dialects that has emerged since XML 1.0 became a W3C recommendation. After a XML document has been stored in the database in a normalized way, the stored procedures in the Corus/ALS© database can be used to transform it to another XML dialect (or another format supported by the Corus/ALS© system). This will make it possible to translate any XML document to any other XML format. An XML interpreter was implemented and this implementation verified the theories in this thesis.
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Genevès, Pierre. "Logiques pour XML." Phd thesis, Grenoble INPG, 2006. http://tel.archives-ouvertes.fr/tel-00133591.
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Cette thèse présente les fondements théoriques et pratiques d'un système pour l'analyse statique de langages manipulant des documents et données XML. Le système s'appuie sur une logique temporelle de point fixe avec programmes inverses, dérivée du mu-calcul modal, dans laquelle les modèles sont des arbres finis. Cette logique est suffisamment expressive pour prendre en compte les langages réguliers d'arbres ainsi que la navigation multidirectionnelle dans les arbres, tout en ayant une complexité simplement exponentielle. Plus précisément, la décidabilité de cette logique est prouvée en temps 2^O(n) où n est la taille de la formule dont le statut de vérité est déterminé.<br /><br />Les principaux concepts de XML sont traduits linéairement dans cette logique. Ces concepts incluent la navigation et la sémantique de sélection de noeuds du langage de requêtes XPath, ainsi que les langages de schémas (incluant DTD et XML Schema). Grâce à ces traductions, les problèmes d'importance majeure dans les applications XML sont réduits à la satisfaisabilité de la logique. Ces problèmes incluent notamment l'inclusion, la satisfaisabilité, l'équivalence, l'intersection, le recouvrement des requêtes, en présence ou en l'absence de contraintes régulières d'arbres, et le typage statique d'une requête annotée.<br /><br />Un algorithme correct et complet pour décider la logique est proposé, accompagné d'une analyse détaillée de sa complexité computationnelle, et des techniques d'implantation cruciales pour la réalisation d'un solveur efficace en pratique. Des expérimentations avec l'implantation complète du système sont présentées. Le système apparaît efficace et utilisable en pratique sur plusieurs scénarios réalistes.<br /><br />La principale application de ce travail est une nouvelle classe d'analyseurs statiques pour les langages de programmation utilisant des requêtes XPath et des types réguliers d'arbres. De tels analyseurs permettent de s'assurer, au moment de la compilation, de propriétés importantes comme le typage correct des programmes ou leur optimisation, pour un traitement plus sûr et plus efficace des données XML.
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Gartner, R. "Intermediary XML schemas." Thesis, City, University of London, 2018. http://openaccess.city.ac.uk/20288/.
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The methodology of intermediary XML schemas is introduced and its application to complex metadata environments is explored. Intermediary schemas are designed to mediate to other ‘referent’ schemas: instances conforming to these are not generally intended for dissemination but must usually be realized by XSLT transformations for delivery. In some cases, these schemas may also generate instances conforming to themselves. Three subsidiary methods of this methodology are introduced. The first is application-specific schemas that act as intermediaries to established schemas which are problematic by virtue of their over-complexity or flexibility. The second employs the METS packaging standard as a template for navigating instances of a complex schema by defining an abstract map of its instances. The third employs the METS structural map to define templates or conceptual models from which instances of metadata for complex applications may be realized by XSLT transformations. The first method is placed in the context of earlier approaches to semantic interoperability such as crosswalks, switching across, derivation and application profiles. The second is discussed in the context of such methods for mapping complex objects as OAI-ORE and the Fedora Content Model Architecture. The third is examined in relation to earlier approaches to templating within XML architectures. The relevance of these methods to contemporary research is discussed in three areas: digital ecosystems, archival description and Linked Open Data in digital asset management and preservation. Their relevance to future research is discussed in the form of suggested enhancements to each, a possible synthesis of the second and third to overcome possible problems of interoperability presented by the first, and their potential role in future developments in digital preservation. This methodology offers an original approach to resolving issues of interoperability and the management of complex metadata environments; it significantly extends earlier techniques and does so entirely within XML architectures.
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Kunovský, Tomáš. "Temporální XML databáze." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2016. http://www.nusl.cz/ntk/nusl-255389.
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The primary goal of this work is a implementation of temporal XML database in Java. There are described databases for XML documents and temporal databases with emphasis on their query languages and problem data storing is also analyzes for temporal databases. Source codes of the resulting application are public as open-source.
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Nálevka, Petr. "Compound XML documents." Master's thesis, Vysoká škola ekonomická v Praze, 2007. http://www.nusl.cz/ntk/nusl-1746.
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Tato práce se zabývá různými charakteristikami komponovaných dokumentů a ukazuje potencionální výhody využití takových dokumentů v prostředí dnešního Webu. Hlavní pozornost je soustředěna na problémy spojené s validací komponovaných dokumentů. Práce zkoumá různé přístupy k řešení těchto problémů. Validační metoda NVDL (Namespace-based Validation Dispatching Language) je popsána detailně. Tato práce popisuje hlavní principy NVDL, zkoumá výhody a nevýhody oproti jiným přístupům a představuje JNVDL. JNVDL je kompletní implementace specifikace NVDL, která byla napsána v jazyce Java jako součást této práce. Popsány jsou nejen technické prvky implementace, ale JNVDL je představeno i z uživatelské perspektivy. Pro ověření využitelnosti bylo JNVDL integrováno do existujícího projektu pro validaci webových dokumentů s názvem Relaxed, aby jednoduše zpřístupnilo validaci komponovaných dokumentů autorům webového obsahu.
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Bhalerao, Rohit Dinesh. "Parallel XML parsing." Diss., Online access via UMI:, 2007.
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Jelen, Michal. "Komprese XML dat." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-220374.
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This master’s thesis is dealing with problems of XML data compression. It describes a characterization and important concepts of XML language as well as AIXM as XML data format. It documents contemporary compression methods of XML and divides them into appropriate groups. Thereinafter a testing of XML data compression using mentioned methods and evaluation of results is implemented. With a consideration of processed data there is created and presented an application which enables lossy and lossless compression of AIXM with the help of particular elements data analysis. All of it with user selection options of AIXM objects and way of resultant compression.
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Maalej, Mustapha [Verfasser]. "Generieren von XML-Editoren in XForms aus XML Schema / Mustapha Maalej." München : Verlag Dr. Hut, 2014. http://d-nb.info/1053860102/34.
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Sahakyan, Marina. "Main memory xml update optimization : algorithms and experiments." Thesis, Paris 11, 2011. http://www.theses.fr/2011PA112262.
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La projection est une des techniques utilisées pour permettre de réduire les besoins en terme de taille mémoire nécessaire aux moteurs de requêtes XML (in-memory). L'idée sous-jacente à cette technique est simple : étant donnée une requête Q à évaluer sur un document XML D, au lieu de procéder sur D, la requête est évaluée sur un document D', plus petit que D, construit lors du chargement de ce dernier en mémoire, par élagage des parties de D inutiles pour Q. Le document D', est une projection du document initial D. Il est souvent de taille drastiquement inférieure à celle de D.Alors que cette technique de projection a été étudiée et développée assez largement pour l'interrogation de document XML, à notre connaissance, ce type de technique n'a pas été explorée ni appliquée aux mises à jour de documents XML.L'objet de cette thèse a donc été de proposer une technique d'optimisation de mises à jour de documents au format XML exploitant le typage des documents.La contribution a porté sur la spécification de l'algorithme Merge, c'est-à-dire la fusion des modifications avec le document initial, ainsi que sur le développement d'un prototype sur lequel des tests ont été effectués<br>XML projection is one of the main adopted optimization techniques for reducing memory consumption in XQuery in-memory engines. The main idea behind this technique is quite simple: given a query Q over an XML document D, instead of evaluating Q on D, the query Q is evaluated on a smaller document D' obtained from D by pruning out, at loading-time, parts of D that are unrelevant for Q. The actual queried document D' is a projection of the original one, and is often much smaller than D due to the fact that queries tend to be quite selective in general.While projection techniques have been extensively investigated for XML querying, we are not aware of applications to XML updating.This Thesis investigates application of a projection based optimization mechanism for XQuery Update Facility expressions in the presence of a schema. The current work includes study of the method and a formal development of Merge algorithm as well as experiments testifying its effectiveness
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Myklebust, Trond Aksel. "Indeksering av heterogene XML dokumenter ved hjelp av datatyper fra XML Schema." Thesis, Norwegian University of Science and Technology, Department of Computer and Information Science, 2006. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-10772.
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<p>Denne masteroppgaven foreslår og undersøker en metode for hvordan informasjons-gjenfinning i heterogene XML dokumenter kan gjøres ved å differensiere indekserings-prosessen ut i fra datatyper angitt i tilhørende XML Schema. Målet er å tilby bedre søkemuligheter for informasjonssøkere ved å muliggjøre spørringer som er uavhengige av elementnavn i en samling av forskjellig strukturerte dokumenter. Informasjonssøking foregår i dag primært i ustrukturerte dokumenter der betydningen av innholdet ikke er direkte kjent. Dette krever kompliserte og unøyaktige tolkninger av innholdet for å kunne trekke ut hva som er hva og hvordan dokumentene best mulig kan indekseres. En stadig økende mengde produsert informasjon og metadata gjør dette til en krevende prosess å utføre manuelt. Det trengs derfor nye metoder der innholdet blir beskrevet ved produksjonstidspunktet slik at en datamaskin automatisk kan forstå dokumentenes innhold. Semistrukturerte dokumentformater som XML inneholder støtte for spesifisering av slik informasjon og muliggjør differensiert indeksering av innholdet basert på annotert informasjon. Dette gjør mer detaljerte spørringer enn tidligere mulig men stiller nye krav til de metoder som brukes for å indeksere dokumentene. En av de største utfordringene er å lokalisere og tolke den informasjonen som øker kvaliteten på resultatet av et søk uten at noe informasjon forsvinner. Informasjonen eksisterer ikke i en flat tekstfil, men inneholder distinkte datatyper som må behandles individuelt. Dette krever nye metoder som muliggjør indeksering basert på denne informasjonen. I denne oppgaven presenteres et forslag til et system som indekserer XML dokumenter ved å tolke tilhørende XML Schema inneholdende annotasjoner av datatype og dataformat. Ved å bruke for hvert element denne informasjonen er ønsket at indekseringen gjøres ved å automatisk normalisere elementinnholdet ut i fra angitt format og datatype. Søk kan dermed optimaliseres basert på datatype uavhengig av om originalt format og dokumentstruktur er forskjellig. Testing av systemet er gjennomført for å finne ut hvordan eksisterende XML dokumenter støtter denne typen indeksering og eventuelle løsninger for hvordan det kan gjøres bedre. Utkommet fra arbeidet på oppgaven og hovedkonklusjonen er at den foreslåtte metoden fungerer godt som løsning på problemstillingen, gitt at de eksterne data som brukes er strukturert slik at datatyper kan defineres for innholdet.</p>
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Mei, Lijun, and 梅立军. "XML-manipulating techniques for the testing and analysis of XML-manipulating services." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B45826468.
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Nečaský, Martin. "Conceptual Modeling for XML /." Heidelberg : Akademische Verlagsgesellschaft Aka, 2009. http://opac.nebis.ch/cgi-bin/showAbstract.pl?u20=9783898384995.
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Perst, Thomas. "Type checking XML transformations." [S.l.] : [s.n.], 2007. http://mediatum2.ub.tum.de/doc/618573/document.pdf.
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Ababneh, Mohammad. "Network configuration using XML." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2000. http://handle.dtic.mil/100.2/ADA384258.
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Thesis (M.S. in Information Technology Management and M.S. in Computer Science) Naval Postgraduate School, September 2000.<br>Thesis advisor(s): Xie, Geoffrey ; Dolk, Daniel. "September 2000." Includes bibliographical references (p. 115). Also available online.
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Klungerbo, Kent Rune. "Informasjonsgjenfinning i XML dokumenter." Thesis, Norwegian University of Science and Technology, Department of Computer and Information Science, 2005. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-10203.
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<p>Den enorme økningen av digitale dokumenter de siste 15 årene har ført til en eksplosjonsartet interesse for, og utvikling av, informasjonsgjenfinning. IR har lenge forholdt seg til dokumenter med lite eller ingen formell struktur, og har blitt dominert av de tre søkemodellene boolsk modell, vektormodell og sannsynlighetsmodell. Den stadig voksende mengden med digital informasjon har etter hvert ført til et behov for større formalitet, noe som har ført til utvikling og introduksjon av strukturerte dokumentformater som SGML og XML. Spesielt sistnevnte språk ser stadig mer utstrakt bruk som format for digital informasjon, noe som fører til nye utfordringer og muligheter innen IR. Informasjonsgjenfinning i XML dokumenter setter nye krav til lagring av dokumenter, prosessering av innholdet i dokumentene, indeksering og søking etter informasjon. Et mangfold av muligheter åpner seg også, men ikke helt uten videre, inngående forskning og studier kreves for å kunne få utbytte av disse mulighetene. En viktig framdriftskraft i denne sammenhengen er INEX, et initiativ som eksisterer for å fremme utviklingen av informasjonsgjenfinning i XML dokumenter. Endringene som kreves for å tilpasse seg de nye dokumentformatene ligger i detaljene. På overordnet nivå forholder ikke IR-systemer seg til om dokumentene er strukturerte eller ikke, det er i de enkelte modulene av systemet, hvor parsing, tekstbehandling, indeksering og søking foregår, at utfordringene ligger for forskere og utviklere. Samtidig presenterer XML nye muligheter for brukerne av slike systemer, gjennom nye måter å formulere spørringer på og nye muligheter for å presentere søkeresultater på. IR i XML er et forskningsområde som er svært viktig for fremtiden innen håndtering av digital informasjon, og vil fortsette å få mye oppmerksomhet i lang tid fremover.</p>
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Geng, Ke. "XML semantic query optimisation." Thesis, University of Auckland, 2011. http://hdl.handle.net/2292/6815.
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XML Semantic Query Optimisation (XSQO) is a method that optimises execution of queries based on semantic constraints, which are extracted from XML documents. Currently most research into XSQO concentrates on optimisation based on structural constraints in the XML documents. Research, which optimises XML query execution based on semantic constraints, has been limited because of the flexibility of XML. In this thesis, we introduce a method, which optimises XML query execution based on the constraints on the content of XML documents. In our method, elements are analysed and classified based on the distribution of values of sub-elements. Information about the classification is extracted and represented in OWL, which is stored in the database together with the XML document. The user input XML query is evaluated and transformed to a new query, which will execute faster and return exactly the same results, based on the element classification information. There are three kinds of transformation that may be carried out in our method: Elimination, which blocks the non-result queries, Reduction, which simplifies the query conditions by removing redundant conditions, and Introduction, which reduces the search area by introducing a new query condition. Two engines are designed and built for the research. The data analysis engine is designed to analyse the XML documents and classify the specified elements. The query transformation engine evaluates the input XML queries and carries out the query transformation automatically based on the classification information. A case study has been carried out with the data analysis engine and we carried out a series of experiments with the query transformation engine. The results show that: a. XML documents can be analysed and elements can be classified using our method, and the classification results satisfy the requirement of XML query transformation. b. content based XML query transformation can improve XML query execution performance by about 20% to 30%. In this thesis, we also introduce a data generator, which is designed and built to support the research. With this generator, users can build semantic information into the XML dataset with specified structure, size and selectivity. A case study with the generator shows that the generator satisfies the requirements of content-based XSQO research.
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Manolescu, Ioana. "Efficient XML query processing." Habilitation à diriger des recherches, Université Paris Sud - Paris XI, 2009. http://tel.archives-ouvertes.fr/tel-00542801.
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Nous présentons des travaux autour de la thématique de l'évaluation efficace de requêtes XML. Une première partie est liée à l'optimisation de l'accès aux données XML dans des bases de données centralisées. La deuxième partie considère des architectures distribuées à grande échelle pour le partage de données XML.
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Hübner, Uwe. "XML - Praxis und Perspektiven." Universitätsbibliothek Chemnitz, 2000. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-200000098.
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Die Extensible Markup Language (XML) hat sich seit ihrer ¨Erfindung¨ vor etwa drei Jahren zu einem strategischen
Element bei neuen Computer- und Netz-Anwendungen entwickelt.
Mittlerweile erfüllen sich auch einige der hochgesteckten Erwartungen, nicht zuletzt mit Hilfe von Werkzeugen aus
dem Linux-Umfeld. Die sehr dynamische Entwicklung hat zahlreiche Richtungen. Neben ¨generischen¨
Werkzeugsystemen gibt es die server- und klientenseitige Interpretation diverser Stil- und
Transformationsvorschriften. Standardisierte XML-basierte Spezialsprachen werden ¨herstellereigene¨ Binärformate
ablösen und eine neue Qualität der Kooperation unterschiedlichster Anwendungen ermöglichen.
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Riedel, Wolfgang. "XML-Schnittstellen von Bürosoftware." Universitätsbibliothek Chemnitz, 2004. http://nbn-resolving.de/urn:nbn:de:swb:ch1-200400480.
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Workshop "Netz- und Service-Infrastrukturen"
Der Vortrag behandelt den aktuellen Stand der Annäherung der wichtigsten Office-Pakete an
XML-Technologien. In erster Linie wird dabei OpenOffice.org auf der einen und DocBook auf der anderen
Seite untersucht: kann man mit OpenOffice "vernünftig" DocBook erzeugen (das mit anderen Werkzeugen
weiterverarbeitet werden kann) und kann OpenOffice "beliebiges" DocBook lesen. Das Resüme ist
deutlich ernüchternd ...
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Elgeholm, Josef. "XML-mottagning av trafikinformation." Thesis, Högskolan Dalarna, Datateknik, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:du-1384.
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Trafiq används av Columna för att distribuera trafikinformation. Funktionen är först och främst att förädla och förmedla information. En viktig del i denna tjänst är kopplingen mot Vägverkets (VV) tjänst Triss som förser Trafiq med trafikinformation. Överföringen av information från VV till Columna sker idag med filer och FTP. VV tillhandahåller numera en tjänst där data skickas på XML-format med http. Min uppgift var att implementera mottagaren i .NET och C# på Columna. I utredningen utreds de mekanismer som ligger till grund för Internettjänster och distribuerade funktioner över Internet. Min slutsats är att http och webbservrar är ett kraftfullt verktyg och kan användas för att lösa många problem som har med datorkommunikation att göra.
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Bergh, Håkan. "XML : Internets framtida format?" Thesis, Blekinge Tekniska Högskola, Institutionen för programvaruteknik och datavetenskap, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-1748.
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HTML (Hyper Text Markup Language) introducerades som ett enkelt och plattformsoberoende språk med syftet att göra information tillgänglig över hela världen och är idag det mest kända och använda språket på webben. När HTML skapades var det huvudsakliga användningsområdet publicering. Efter hand ökade mognaden hos användarna och behovet av mer avancerade tillämpningar ökade. Fler och fler började då inse begränsningarna med HTML och dess enkla struktur. Metaspråket XML (eXtensible Markup Language) är ett universellt format för att strukturera dokument och data på Internet. Utveck-lingen av XML startade 1996 och antogs som en W3C-rekommendation (World Wide Web Consortsium) i februari 1998. Syftet med XML var att skapa ett betydligt mer flexibelt språk än HTML, utan att för den skull göra det mer komplext. Syftet med uppsatsen är att undersöka om det nödvändiga underhållet av presenterad information på webben (WWW) förbättras med hjälp av XML samt undersöka hur XML kan underlätta EDI (Electronic Data Interchange)via Internet. Uppsatsen fakta och påståenden bygger på en s k kvalitativ bearbetning d v s textmaterial i form av rapporter, specifikationer och böcker. I min undersökning har jag kommit fram till att XML kommer att bli ett av morgondagens stora format, både vad gäller skapandet av Internetapplikationer och som meddelandeformat för informationsöverfö-ring. Med XML kan allt från en enkel fil till avancerade affärsdokument skapas. Det som jag anser håller tillbaka XML i dagsläget är samtidigt en av dess styrkor, nämligen flexibiliteten, det vill säga möjligheten att deklarera egna märkord. Genom den här sortens flexibilitet blir även språket mer komplext jämfört med ett språk som t ex HTML. Ett av del-målen W3C satte upp vid skapandet var just att enkelheten skulle bibehållas. Detta delmål har delvis gått förlorat i XML. XML-familjen är idag relativt komplex. Samtidigt välkomnas förslagen till förbättringar och utbyggnad av utvecklarna, då det är kringstandarderna som ger XML flexibel funktionalitet. Den slutsats som kan dras av detta är att det kanske helt enkelt måste finnas en viss komplexitet i ett språk som ska kunna uträtta de saker som faktiskt XML gör.
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Kazlauskas, Marius. "Duomenų integravimas panaudojant XML." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2005. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20050107_114858-67274.
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Using different information systems and correct communication between them are very important problem at this time. Modern companies have a large number of major applications that take care of running the business. At different times, different people used different technologies to write these applications for different purposes. Data resources can be at many different forms in organization: relational databases, object databases, XML documents and etc. Databases can operate with different systems and use distinct software. This problem must be solved by enterprise application integration (EAI) systems. The project analyzes data level EAI. This type of integration is relatively inexpensive and it doesn’t need to incur the expense of changing, testing, and deploying the application. XML can be a powerful ally for data integration. The main purpose of this project was to analyze usage of XML technologies possibilities for data integration. The problem solved is how to use the same XML flow for a several purposes: the change of another database(s), transforming to a HTML document and forming a PDF document for printing. These problems are analyzed and solved in the particular range – organization of management of public utility. Here is designed and realized an information system.
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Zainol, Zurinahni. "XML documents schema design." Thesis, University of Hull, 2012. http://hydra.hull.ac.uk/resources/hull:8315.
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The eXtensible Markup Language (XML) is fast emerging as the dominant standard for storing, describing and interchanging data among various systems and databases on the intemet. It offers schema such as Document Type Definition (DTD) or XML Schema Definition (XSD) for defining the syntax and structure of XML documents. To enable efficient usage of XML documents in any application in large scale electronic environment, it is necessary to avoid data redundancies and update anomalies. Redundancy and anomalies in XML documents can lead not only to higher data storage cost but also to increased costs for data transfer and data manipulation. To overcome this problem, this thesis proposes to establish a formal framework of XML document schema design. To achieve this aim, we propose a method to improve and simplify XML schema design by incorporating a conceptual model of the DTD with a theory of database normalization. A conceptual diagram, Graph-Document Type Definition (G-DTD) is proposed to describe the structure of XML documents at the schema level. For G- DTD itself, we define a structure which incorporates attributes, simple elements, complex elements, and relationship types among them. Furthermore, semantic constraints are also precisely defined in order to capture semantic meanings among the defined XML objects. In addition, to provide a guideline to a well-designed schema for XML documents, we propose a set of normal forms for G-DTD on the basis of rules proposed by Arenas and Libkin and Lv. et al. The corresponding normalization rules to transform from a G- DTD into a normal form schema are also discussed. A case study is given to illustrate the applicability of the concept. As a result, we found that the new normal forms are more concise and practical, in particular as they allow the user to find an 'optimal' structure of XML elements/attributes at the schema level. To prove that our approach is applicable for the database designer, we develop a prototype of XML document schema design using a Z formal specification language. Finally, using the same case study, this formal specification is tested to check for correctness and consistency of the specification. Thus, this gives a confidence that our prototype can be implemented successfully to generate an automatic XML schema design.
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Meloy, Christopher Adam. "XML beyond the tags." Master's thesis, University of Central Florida, 2011. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4802.
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XML is quickly being utilized in the field of technical communication to transfer information from database to person and company to company. Often communicators will structure information without a second thought of how or why certain tags are used to mark up the information. Because the company or a manual says to use those tags, the communicator does so. However, if professionals want to unlock the true potential of XML for better sharing of information across platforms, they need to understand the effects the technology using XML as well as political and cultural factors have on the tags being used. This thesis reviewed literature from multiple fields utilizing XML to find how tag choices can be influenced. XML allows for the sharing of information across multiple platforms and databases. Because of this efficiency, XML is utilized by many technologies. Often communicators must tag information so that the technologies can find the marked up information; therefore, technologies like single sourcing, data mining, and knowledge management influence the types of tags created. Additionally, cultural and political influences are analyzed to see how they play a role in determining what tags are used and created for specific documents. The thesis concludes with predictions on the future of XML and the technological, political, and cultural influences associated with XML tag sets based on information found within the thesis.<br>ID: 030646217; System requirements: World Wide Web browser and PDF reader.; Mode of access: World Wide Web.; Thesis (M.A.)--University of Central Florida, 2011.; Includes bibliographical references (p. 110-116).<br>M.A.<br>Masters<br>English<br>Arts and Humanities<br>English; Technical Communications Track
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Kramer, Diane S. "XEM: XML Evolution Management." Digital WPI, 2001. https://digitalcommons.wpi.edu/etd-theses/912.
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"As information on the World Wide Web continues to proliferate at an astounding rate, the Extensible Markup Language (XML) has been emerging as a standard format for data representation on the web. In many application domains, specific document type definitions (DTDs) are designed to enforce a semantically agreed-upon structure of the XML documents. In XML context, these structural definitions serve as schemata. However, both the data and the structure (schema) of XML documents tend to change over time for a multitude of reasons, including to correct design errors in the DTD, to allow expansion of the application scope over time, or to account for the merging of several businesses into one. Most of the current software tools that enable the use of XML do not provide explicit support for such data or schema changes. Using these tools in a changing environment entails making manual edits to DTDs and XML data and reloading them from scratch. In this vein, we put forth the first solution framework, called XML Evolution Manager (XEM), to manage the evolution of DTDs and XML documents. XEM provides a minimal yet complete taxonomy of basic change primitives. These primitives, classified as either data or schema changes, are consistency-preserving. For a data change, they ensure that the modified XML document conforms to its DTD both in structure and constraints. For a schema change, they ensure that the new DTD is well-formed, and all existing XML documents are transformed also to conform to the modified DTD. We prove both the completeness of our evolution taxonomy, as well as its consistency-preserving nature. To verify the feasibility of our XEM approach we have implemented a working prototype system in Java, using the XML4J parser from IBM and PSE Pro as our backend storage system. We present an experimental study run on this system where we compare the relative efficiencies of the primitive operations in terms of their execution times. We then contrast these execution times against the time to reload the data, which would be required in a manual system. Based on the results of these experiments we conclude that our approach improves upon the previous method of making manual changes and reloading data from scratch by providing automated evolution management facilities for DTDs and XML documents."
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K/Bidy, Gilles. "XML META-DATA EXPERIMENTS." International Foundation for Telemetering, 2007. http://hdl.handle.net/10150/604549.
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ITC/USA 2007 Conference Proceedings / The Forty-Third Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2007 / Riviera Hotel & Convention Center, Las Vegas, Nevada<br>As part of the technology upgrades driven by the iNet initiative, there is a need to establish a meta-data standard to describe configuration information for the system under test. The technology identified for such a standard is XML and XSD schemas. This paper presents findings from various experiments to import and export existing telemetry configuration information to XML based on the new Meta-data model. In addition, this paper will discuss the possible conversions to and from the existing IRIG TMATS standard.
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Self, Lance. "DATABASE ALTERATION WITH XML." International Foundation for Telemetering, 2003. http://hdl.handle.net/10150/605559.
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International Telemetering Conference Proceedings / October 20-23, 2003 / Riviera Hotel and Convention Center, Las Vegas, Nevada<br>Properly formatted XML files can contain telemetry data points, data type definitions, define table
relationships, and other attributes that can expedite database updates. There are a number of methods
to alter a database when using an XML file as the input. Some methods are useful with one aspect,
such as creating tables, while others are better at updating data tables. This paper describes three
methods to accomplish database updates using XML and discusses some positive and negative
aspects to each approach.
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Saccol, Deise de Brum. "Materialização de visões XML." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2001. http://hdl.handle.net/10183/2779.
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A grande quantidade de dados eletrônicos disponível atualmente nem sempre pode ser representada com modelos tradicionais, principalmente devido à ausência de esquema no momento da criação destes dados. Neste sentido, modelos semi-estruturados têm sido propostos; uma das abordagens utilizadas é XML, uma linguagem para troca e representação deste tipo de informação. Entretanto, consultar dados semi-estruturados pode demandar processos de extração com alto custo. Uma das alternativas para solucionar este problema é a definição de visões sobre estes dados, e a posterior materialização destas informações. O uso de visões materializadas para dados XML ainda é pouco explorado. Uma das abordagens que podem ser utilizadas é o uso de sistemas de gerenciamento de bancos de dados relacionais para o armazenamento das visões. Desse modo, informação semanticamente relacionada (informação acerca de um mesmo domínio, possivelmente representada em formatos diferentes) pode ser agrupada em uma única unidade lógica, facilitando o acesso a estes dados por parte do usuário, e introduzindo alguma estrutura nos dados semiestruturados. Dessa maneira, o usuário final submete consultas diretamente sobre a visão materializada, evitando extrações contínuas de dados nas fontes XML. A materialização de dados XML exige a definição de um repositório de dados para o armazenamento destas instâncias. Utilizando-se a abordagem relacional, é necessário definir um mecanismo para a geração do esquema lógico do banco de dados. Consultar os dados nas fontes XML exige a integração destas instâncias. Neste contexto, integrá-las significa identificar quais instâncias de dados representam o mesmo objeto do mundo real, bem como resolver ambigüidades de representação deste objeto. O problema de identificação de entidades em XML é mais complexo que em bases de dados estruturadas. Dados XML, como propostos originalmente, não carregam necessariamente a noção de chave primária ou identificador de objeto. Assim, é necessária a adoção de um mecanismo que faça a identificação das instâncias na integração destes dados. Além disso, à medida que as fontes de dados XML sofrem alterações, a visão materializada deve ser atualizada, a fim de manter-se consistente com as fontes de dados. A manutenção deve propagar as alterações feitas nos dados XML para a visão materializada. Reprocessar todo o conteúdo da visão materializada é, na maioria das vezes, muito caro. Assim, é desejável propagar as mudanças incrementalmente, ou seja, processar apenas as alterações necessárias. Neste sentido, o presente trabalho apresenta uma proposta de técnica para armazenamento de dados XML em um banco de dados relacional. A proposta utiliza ontologias para a geração do esquema lógico do banco de dados. O problema de integração de dados é mostrado. O foco principal do trabalho está na proposta de uma técnica de atribuição de identificadores a instâncias XML, baseada no uso de funções Skolem e no padrão XPath, proposto pelo W3C. Também é proposto um mecanismo para manutenção incremental deste banco, à medida que as fontes XML sofrem atualizações.
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Aguiléra, Vincent. "Interrogation de documents XML." Marne-la-vallée, ENPC, 2002. http://www.theses.fr/2002ENPC0212.
Full textAbstract:
XML s'impose comme standard pour l'échange et la présentation de données sur Internet. Son émergence a considérablement renforcé les liens entre la recherche en bases de données et le monde de la gestion électronique de documents. Dans ce contexte, la problématique de l'interrogation de documents XML nécessite un réexamen des paradigmes et techniques employées au sein des Systèmes de Gestion de Bases de Données (SGBD). En effet, les SGBD classiques sont mal adaptés à la gestion de données dont la structure est irrégulière. Deux apports majeurs des SGBD sont l'utilisation de langages de manipulation de données déclaratifs et l'emploi de techniques d'optimisation de requêtes. En poursuivant les travaux effectués dans le domaine des données semi-structurées, cette thèse propose de revisiter ces deux thèmes dans le cadre de l'interrogation de documents XML. Nos contributions concernent : la spécification formelle d'un langage de requêtes pour documents XML, X-OQL, et l'architecture d'un interprète en Java ; l'architecture et l'implantation du processeur de requêtes de l'entrepôt Xyleme, construit pour le stockage et l'interrogation de gros volumes (plusieurs TeraOctets) de documents XML; la définition d'un opérateur algébrique logique, appelé Patternscan, permettant l'expression de requêtes structurées de type motifs d'arbres ; la mise en oeuvre de techniques d'optimisation et d'évaluation fondées sur l'utilisation d'un mécanisme d'indexation spécifique et permettant le traitement de requêtes structurées tout en prenant en compte les contraintes d'un moteur de recherche (gros volume de données, nombre élevé d'utilisateurs simultanés et faible temps d'obtention des premières réponses). Ces travaux ont été valorisés au sein de la jeune pousse de l'INRIA Xyleme S. A.
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Swallow, Dustin. "XML Based Content Management." Miami University Honors Theses / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=muhonors1110916984.
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Nálevka, Petr. "Validace komponovaných dokumentů XML." Master's thesis, Vysoká škola ekonomická v Praze, 2007. http://www.nusl.cz/ntk/nusl-3870.
Full textAbstract:
Tato práce se zabývá různými charakteristikami komponovaných dokumentů a ukazuje potencionální výhody využití takových dokumentů v prostředí dnešního Webu. Hlavní pozornost je soustředěna na problémy spojené s validací komponovaných dokumentů. Práce zkoumá různé přístupy k řešení těchto problémů. Validační metoda NVDL (Namespace-based Validation Dispatching Language) je popsána detailně. Tato práce popisuje hlavní principy NVDL, zkoumá výhody a nevýhody oproti jiným přístupům a představuje JNVDL. JNVDL je kompletní implementace specifikace NVDL, která byla napsána v jazyce Java jako součást této práce. Popsány jsou nejen technické prvky implementace, ale JNVDL je představeno i z uživatelské perspektivy. Pro ověření využitelnosti bylo JNVDL integrováno do existujícího projektu pro validaci webových dokumentů s názvem Relaxed, aby jednoduše zpřístupnilo validaci komponovaných dokumentů autorům webového obsahu.
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Luo, Cheng. "On XML selectivity estimation /." Available to subscribers only, 2007. http://proquest.umi.com/pqdweb?did=1456296461&sid=11&Fmt=2&clientId=1509&RQT=309&VName=PQD.
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Jiang, Zhewei. "On XML query processing /." Available to subscribers only, 2008. http://proquest.umi.com/pqdweb?did=1757062851&sid=2&Fmt=2&clientId=1509&RQT=309&VName=PQD.
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Thesis (Ph. D.)--Southern Illinois University Carbondale, 2008.<br>"Department of Electrical and Computer Engineering." Keywords: XML, Queries, Processing, Query processing. Includes bibliographical references (p. 58-65). Also available online.
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Becker, Oliver. "Serielle Transformationen von XML." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 2004. http://dx.doi.org/10.18452/15155.
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Die Auszeichnungssprache XML definiert eine einfache Syntax für strukturierte Daten, die sich so applikationsübergreifend einsetzen lassen. Eine der wichtigsten Voraussetzungen für den Austausch solcher XML-Daten ist die Möglichkeit ihrerTransformation. Unter den derzeit verfügbaren Transformationsmethoden für XML hat die Sprache XSLT als W3C-Standard die größte Verbreitung gefunden. Allerdings skaliert XSLT nicht für große Datenmengen, da hier eine Gesamtsicht auf das XML-Dokument vorausgesetzt wird. Andere existierende Transformationsmethoden besitzen entweder die gleiche Eigenschaft oder erfordern die Programmierung auf der XML-fernen Ebene einer Programmiersprache. In dieser Arbeit wird mit STX eine Transformationssprache für XML entwickelt, die diese Lücke füllt. STX orientiert sich sehr stark an XSLT, verarbeitet jedoch ein XML-Dokument als Datenstrom. STX kann so prinzipiell beliebig große Dokumente transformieren. Die aus der Sprache XPath 2.0 des W3C abgeleitete STX-Pfadsprache (STXPath) trägt dabei der eingeschränkten Sicht auf die zu transformierenden Daten Rechnung, indem sie nur den Zugriff auf die Vorfahren des jeweiligen Kontextknotens ermöglicht. Zu den neuartigen Konzepten in STX zählen neben prozeduralen Eigenschaften vor allem Gruppen, Schnittstellen zu externen Transformationsprozessen, die komplexe Transformation von Zeichenketten sowie Sprachmittel zur Fehlerbehandlung. Diese Arbeit stellt Entwurfsmuster für die wichtigsten Transformationstypen in STX vor und demonstriert an drei Fallbeispielen den Einsatz in realen Projekten. Der dazu verwendete STX-Prozessor Joost verfügt zudem über standardisierteJava-Schnittstellen, die dessen Integration in bestehende Java-Applikationen erleichtern.<br>The markup language XML defines a simple syntax for structured data that can be used across application boundaries. One of the most important prerequisites for the interchange of such XML data is the possibility of its transformation. Among the currently available transformation approaches for XML, the W3C standard XSLT has gained the biggest popularity. However, XSLT doesn''t scale for huge amounts of data because it requires an overall view to an XML document. Other existing transformation approaches either have the same character or require low-level programming using a general programming language. This PhD thesis introduces STX, an XML transformation language that fills this gap. STX is strongly geared to XSLT, though it processes an XML document as a stream. Therefore, STX is able to transform documents of any size. The STX path language (STXPath), derived from the W3C standard XPath 2.0, considers the restricted view to the input data and enables the access only to the ancestors of the current context node. The new concepts in STX include besides its procedural behaviour mainly groups, interfaces to external transformation processes, complex transformations of strings, as well as language means for error handling. This work introduces design patterns for the most important transformation types in STX and demonstrates three real-life scenarios. The STX processor Joost used for this purpose provides in addition standardized Java interfaces that facilitate its integration into existing Java applications.