Eine Zeitreihe ist eine zeitlich geordnete Folge von Datenpunkten. Zeitreihen werden typischerweise über Sensormessungen oder Experimente erfasst. Sensoren sind so preiswert geworden, dass sie praktisch allgegenwärtig sind. Während dadurch die Menge an Zeitreihen regelrecht explodiert, lag der Schwerpunkt der Forschung in den letzten Jahrzehnten auf der Analyse von (a) vorgefilterten und (b) kleinen Zeitreihendatensätzen. Die Analyse realer Zeitreihendatensätze wirft zwei Probleme auf: Erstens setzen aktuelle Ähnlichkeitsmodelle eine Vorfilterung der Zeitreihen voraus. Das beinhaltet die Extraktion charakteristischer Teilsequenzen und das Entfernen von Rauschen. Diese Vorverarbeitung muss durch einen Spezialisten erfolgen. Sie kann zeit- und kostenintensiver als die anschließende Analyse und für große Datensätze unrentabel werden. Zweitens führte die Verbesserung der Genauigkeit aktueller Ähnlichkeitsmodelle zu einem unverhältnismäßig hohen Anstieg der Komplexität (quadratisch bis biquadratisch). Diese Dissertation behandelt beide Probleme. Es wird eine symbolische Zeitreihenrepräsentation vorgestellt. Darauf aufbauend werden drei verschiedene Ähnlichkeitsmodelle eingeführt. Diese erweitern den aktuellen Stand der Forschung insbesondere dadurch, dass sie vorverarbeitungsfrei, unempfindlich gegenüber Rauschen und skalierbar sind. Anhand von 91 realen Datensätzen und Benchmarkdatensätzen wird zusätzlich gezeigt, dass die hier eingeführten Modelle auf den meisten Datenätzen die höchste Genauigkeit im Vergleich zu 15 aktuellen Ähnlichkeitsmodellen liefern. Sie sind teilweise drei Größenordnungen schneller und benötigen kaum Vorfilterung. / A time series is a collection of values sequentially recorded from sensors or live observations over time. Sensors for recording time series have become cheap and omnipresent. While data volumes explode, research in the field of time series data analytics has focused on the availability of (a) pre-processed and (b) moderately sized time series datasets in the last decades. The analysis of real world datasets raises two major problems: Firstly, state-of-the-art similarity models require the time series to be pre-processed. Pre-processing aims at extracting approximately aligned characteristic subsequences and reducing noise. It is typically performed by a domain expert, may be more time consuming than the data mining part itself, and simply does not scale to large data volumes. Secondly, time series research has been driven by accuracy metrics and not by reasonable execution times for large data volumes. This results in quadratic to biquadratic computational complexities of state-of-the-art similarity models. This dissertation addresses both issues by introducing a symbolic time series representation and three different similarity models. These contribute to state of the art by being pre-processing-free, noise-robust, and scalable. Our experimental evaluation on 91 real-world and benchmark datasets shows that our methods provide higher accuracy for most datasets when compared to 15 state-of-the-art similarity models. Meanwhile they are up to three orders of magnitude faster, require less pre-processing for noise or alignment, or scale to large data volumes.

In den letzten Jahren haben sich spezielle Prinzipien zur Veröffentlichung strukturierter Daten im World Wide Web (WWW) etabliert. Diese Prinzipien erlauben es, von den jeweils angebotenen Daten auf weitere, nach den selben Prinzipien veröffentlichten Daten zu verweisen. Die daraus resultierende Form von Web-Daten wird entsprechend als Linked Data bezeichnet. Mit der Veröffentlichung von Linked Data im WWW entsteht ein sehr großer Datenraum, welcher Daten verschiedenster Anbieter miteinander verbindet und neuartige Möglichkeiten für Web-basierte Anwendungen bietet. Als Basis für die Entwicklung solcher Anwendungen haben mehrere Forschungsgruppen begonnen, Ansätze zu untersuchen, welche diesen Datenraum als eine Art verteilte Datenbank auffassen und die Ausführung deklarativer Anfragen über dieser Datenbank ermöglichen. Forschungsarbeit zu theoretischen Grundlagen der untersuchten Ansätze fehlt jedoch nahezu vollständig. Die vorliegende Dissertation schließt diese Lücke. / During recent years a set of best practices for publishing and connecting structured data on the World Wide Web (WWW) has emerged. These best practices are referred to as the Linked Data principles and the resulting form of Web data is called Linked Data. The increasing adoption of these principles has lead to the creation of a globally distributed space of Linked Data that covers various domains such as government, libraries, life sciences, and media. Approaches that conceive this data space as a huge distributed database and enable an execution of declarative queries over this database hold an enormous potential; they allow users to benefit from a virtually unbounded set of up-to-date data. As a consequence, several research groups have started to study such approaches. However, the main focus of existing work is to address practical challenges that arise in this context. Research on the foundations of such approaches is largely missing. This dissertation closes this gap.

In this thesis study, a least-squares finite element method (LSFEM) based conjugate heat transfer solver was developed. In the mentioned solver, fluid flow and heat transfer computations were performed separately. This means that the calculated velocity values in the flow calculation part were exported to the heat transfer part to be used in the convective part of the energy equation. Incompressible Navier-Stokes equations were used in the flow simulations. In conjugate heat transfer computations, it is required to calculate the heat transfer in both flow field and solid region. In this study, conjugate behavior was accomplished in a fully coupled manner, i.e., energy equation for fluid and solid regions was solved simultaneously and no boundary conditions were defined on the fluid-solid interface. To assure that the developed solver works properly, lid driven cavity flow, backward facing step flow and thermally driven cavity flow problems were simulated in three dimensions and the findings compared well with the available data from the literature. Couette flow and thermally driven cavity flow with conjugate heat transfer in two dimensions were modeled to further validate the solver. Finally, a microchannel conjugate heat transfer problem was simulated. In the flow solution part of the microchannel problem, conservation of mass was not achieved. This problem was expected since the LSFEM has problems related to mass conservation especially in high aspect ratio channels. In order to overcome the mentioned problem, weight of continuity equation was increased by multiplying it with a constant. Weighting worked for the microchannel problem and the mass conservation issue was resolved. Obtained results for microchannel heat transfer problem were in good agreement in general with the previous experimental and numerical works. In the first computations with the solver / quadrilateral and triangular elements for two dimensional problems, hexagonal and tetrahedron elements for three dimensional problems were tried. However, since only the quadrilateral and hexagonal elements gave satisfactory results, they were used in all the above mentioned simulations.

This paper describes the file formats of the output data and geometry files generated by the Delphin program, a simulation model for hygrothermal transport in porous media. The output data format is suitable for any kind of simulation output generated by transient transport simulation models. Implementing support for the Delphin output format enables use of the advanced post-processing functionality provided by the Delphin post- processing tool and its dedicated physical analysis functionality. The article also discusses the application programming interface of the DataIO library that can be used to read/write Delphin output data and geometry files conveniently and efficiently.

Die stetige Entwicklung intelligenter Sensorsysteme erlaubt die Automatisierung und Verbesserung komplexer Prozess- und Geschäftsentscheidungen in vielfältigen Anwendungsszenarien. Sensoren können zum Beispiel zur Bestimmung optimaler Wartungstermine oder zur Steuerung von Produktionslinien genutzt werden. Ein grundlegendes Problem bereitet dabei die Sensordatenqualität, die durch Umwelteinflüsse und Sensorausfälle beschränkt wird. Ziel der vorliegenden Arbeit ist die Entwicklung eines Datenqualitätsmodells, das Anwendungen und Datenkonsumenten Qualitätsinformationen für eine umfassende Bewertung unsicherer Sensordaten zur Verfügung stellt. Neben Datenstrukturen zur effizienten Datenqualitätsverwaltung in Datenströmen und Datenbanken wird eine umfassende Datenqualitätsalgebra zur Berechnung der Qualität von Datenverarbeitungsergebnissen vorgestellt. Darüber hinaus werden Methoden zur Datenqualitätsverbesserung entwickelt, die speziell auf die Anforderungen der Sensordatenverarbeitung angepasst sind. Die Arbeit wird durch Ansätze zur nutzerfreundlichen Datenqualitätsanfrage und -visualisierung vervollständigt.

No description available.

Late Roman chronicles are little studied and greatly misunderstood. The purpose of this dissertation is to treat a Late Roman chronicler, Hydatius, as a living, breathing person and to use the chronicle as a means of revealing this individual: his beliefs, his interests, his fears, his attitudes, his view of the Empire, and his abilities as an historian. Hydatius was a bishop in Gallaecia, writing in 468-9 amidst the Suevic depredations of Spain. As a result he is a unique source in that he is the earliest extant historian who wrote in a post- Roman (i.e. Mediaeval) world. His chronicle is the only detailed source for Spanish history in the fifth century and the only detailed source written about the fifth-century barbarian invasions and settlements. Though extremely isolated he had remarkable contacts with the outside world and his chronicle is a unique source for much non- Spanish information. It is also one of the most personal of all the Late Antique chronicles and therefore an excellent gateway for an examination of the Late Roman world as seen through the eyes of a contemporary. For these reasons, Hydatius' vivid and often emotive account of the sufferings of Gallaecia at the hands of the Sueves and Goths, framed by the parallel military, religious and imperial history of the Eastern and Western empires and set within the eschatological context of the imminent Apocalypse, deserves detailed study. The production of a new critical edition, based on only the third, complete, first-hand examination of the sole major manuscript (B) since 1615 and the first produced from all known manuscript evidence, complete with apparatuses on the manuscripts, chronology and orthography, was necessitated by the perverse Sources chrétiennes edition of 1974 and the discovery of new evidence from a careful study of manuscript B.

Bibliograpy : leaves 267-288. / xi, 288 leaves : ill. (some col.), maps ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.)--University of Adelaide, Dept. of Botany, 1994?

Zugl.: Oxford, University, Diss. - Bibliogr. S. (511)--548.

Les deux œuvres spirituelles majeures de Cabasilas : L’Explication de la divine Liturgie et ses Sept Discours au sujet de la vie en Christ, dont les conceptions théologiques ecclésiastiques fondamentales et principales constituent le terreau fertile de la présente thèse sur les mystères du Baptême, de la Chrismation et de la divine Eucharistie, s’appuyant sur l’idée principale du théologien que le salut humain se trouve dans la maison de Dieu. Nicolas Cabasilas fonde précisément sur les saints mystères toute sa théologie ecclésiastique du Nouveau Testament, le monde entier, qui se transforme, s’organise et vit en tant que Corps du Christ. Le Saint Esprit « par la main et la bouche des prêtre accomplit » les mystères de l’Église qui apportent des fruits spirituels et la vie morale et spirituelle en Christ. Ainsi la vie des membres du corps de l’Église, dont le Christ est la tête, est la vie dans le Saint Esprit. Cabasilas place ainsi avec justesse et profondeur, les sacrements principaux (baptême, chrismation et eucharistie) au cœur de ce chemin de vie et d'union au Christ. Toutefois, un rappel important de Cabasilas, concernant le principe de coopération, ne doit pas nous échapper. En effet, la vie nouvelle en Christ est le fruit de la coopération de Dieu et du facteur humain. Le salut n’est pas donné de force lors des mystères, mais avec la coopération et la bonne volonté de l’individu, sa participation active. Enfin, comme notre thèse le démontre, la pensée théologique de Cabasilas, concernant le caractère eschatologique des mystères, en particulier du baptême et de la divine Eucharistie, préserve et dispense la doctrine de l’Apôtre Paul et de la théologie chrétienne primitive qualifiant avec Saint Paul les mystères comme « forces du siècle à venir». / The two major spiritual works of Nicholas Cabasilas : The Explanation of the Divine Liturgy and his seven speeches on the life of Christ, whose basic theological and ecclesiastical designs are the fertile soil of our thesis on the mysteries of Baptism, Chrismation and Holy Eucharist, are based on the main idea that human salvation should be found in the church, the house of God. Nicholas Cabasilas bases precisely on the holy mysteries his entire theology of the New Testament, in which the whole world is organized and lives as the Body of Christ. The Holy Spirit by the hand and the mouth of the priest performs the mysteries of the Church and provides the spiritual and moral fruits, the spiritual life in Christ. Thus the life of the members of the body of the Church, of which Christ is the head, is the life in the Holy Spirit. Cabasilas places with reason the major sacraments (Baptism, Chrismation and Eucharist) at the heart of this life and union with Christ. However, the important reminder of Cabasilas on the principle of cooperation should not escape us. Indeed, the new life in Christ is the fruit of cooperation between God and the human factor. The salvation is not given by force with the mysteries, but with the cooperation and good will of the individual, his active participation. Finally, as our case demonstrates, the theological thought of Cabasilas concerning the eschatological character of the mysteries, especially baptism and the Holy Eucharist, preserves and provides the doctrine of the Apostle Paul and the early Christian theology qualifying the holly mysteries as "forces of the age to come."