Erhard Rahm – författare

This book constitutes the refereed proceedings of the 10th International Conference on Data Integration in the Life Sciences, DILS 2014, held in Lisbon, Portugal, in July 2014. The 9 revised full papers and the 5 short papers included in this volume were carefully reviewed and selected from 20 submissions. The papers cover a range of important topics such as data integration platforms and applications; biodiversity data management; ontologies and visualization; linked data and query processing.

Transaktionssysteme sind in der kommerziellen Datenverarbeitung weit verbreitet. Gerade wegen ihrer okonomischen Bedeutung spielen zunehmend Leistungsanforderungen eine Rolle, die nur von sogenannten Hochleistungs-Transaktionssystemen erfullt werden konnen. Das Buch zeigt, welche neueren Systementwicklungen bei Hochleistungs-Transaktionssystemen zu beachten sind. Die Darstellung konzentriert sich auf die Datenbankaspekte, insbesondere auch die von Mehrrechner-Systemen. Stets im Auge behalten wird, dass die grundlegenden Konzepte und Methoden dem Leser verstandlich vermittelt werden. Das Buch richtet sich an Studenten, DB-Praktiker und Informatiker an Hochschulen und in der Industrie, die an dem State-of-the-Art und neueren Entwicklungen von Transaktions- und Datenbanksystemen interessiert sind.

This book constitutes the thoroughly refereed post-proceedings of the Web- and Database-Related Workshops held during the NetObjectDays international conference NODe 2002, in Erfurt, Germany, in October 2002.The 19 revised full papers presented together with 3 keynote papers were carefully selected during 2 rounds of reviewing and improvement. The papers are organized in topical sections on advanced Web-services, UDDI extensions, description and classification of Web services, applications based on Web-services, indexing and accessing, Web and XML databases, mobile devices and the Internet, and XML query languages.

This book constitutes the refereed proceedings of the First International XML Database Symposium, XSym 2003, held in Berlin, Germany in September 2003.The 18 revised full papers presented were carefully reviewed and selected from 65 submissions. The papers are organized in topical sections on XML-relational database management systems, XML query processing, systems and tools for XML data processing, XML access structures, stream processing and updates, and design issues.

DILS 2004 (Data Integration in the Life Sciences) is a new bioinformatics wo- shop focusing on topics related to data management and integration. It was motivated by the observation that new advances in life sciences, e. g. , molecular biology, biodiversity, drug discovery and medical research, increasingly depend on bioinformatics methods to manage and analyze vast amounts of highly - verse data. Relevant data is typically distributed across many data sources on the Web and is often structured only to a limited extent. Despite new inter- erability technologies such as XML and web services, integration of data is a highly di?cult and still largely manual task, especially due to the high degree of semantic heterogeneity and varying data quality as well as speci?c application requirements. The call for papers attracted many submissions on the workshop topics. - ter a carefulreviewing processthe internationalprogramcommittee accepted 13 long and 2 short papers which are included in this volume. They cover a wide spectrum of theoretical and practical issues including scienti?c/clinical wo- ?ows, ontologies, tools/systems, and integration techniques.DILS 2004 also f- tured two keynote presentations, by Dr. Thure Etzold (architect of the leading integration platform SRS, and president of Lion Bioscience, Cambridge, UK) and Prof. Dr. Svante Pa...abo (Director, Max Planck Institute for Evolutionary Anthropology, Leipzig). The workshop took place during March 25-26, 2004, in Leipzig, Germany, and was organized by the Interdisciplinary Bioinformatics Center (IZBI) of the Universityof Leipzig.

Das Buch behandelt in systematischer und praxisorientierter Weise den Entwurf sowie die Leistungsbewertung von Synchronisationsverfahren in Mehrrechner-Datenbanksystemen. Nach einer Klassifikation von Mehrrechner-Datenbanksystemen werden zunachst die wichtigsten Synchronisationstechniken fur zentralisierte und verteilte Datenbanksysteme dargestellt und miteinander verglichen. Im Mittelpunkt der Uberlegungen stehen dann geeignete Synchronisationskonzepte (wie Sperrverfahren und optimistische Protokolle) fur sogenannte DB-Sharing-Systeme, welche eine allgemeine Mehrrechnerarchitektur zur Realisierung von Hochleistungs-Transaktionssystemen verkorpern. Fur DB-Sharing werden neben der Realisierung der Synchronisationskomponente auch fur neue Anforderungen bezuglich Systempufferverwaltung, Logging, Recovery und Lastkontrolle koordinierte Losungsmoglichkeiten angegeben. Zur quantitativen und realitatsnahen Leistungsanalyse von sechs Synchronisationsprotokollen wurde ein Trace-getriebenes Simulationssystem entwickelt, in dem alle wesentlichen Komponenten eines Mehrrechner-Datenbanksystems detailliert berucksichtigt sind.Das Buch gibt einen fundierten Uberblick uber den Stand der Wissenschaft im Bereich der Synchronisation in zentralisierten und Mehrrechner-Datenbanksystemen und zeigt neue Techniken zur Realisierung kunftiger Hochleistungs-Transaktionssysteme auf.

Requiring heterogeneous information systems to cooperate and communicate has now become crucial, especially in application areas like e-business, Web-based mash-ups and the life sciences. Such cooperating systems have to automatically and efficiently match, exchange, transform and integrate large data sets from different sources and of different structure in order to enable seamless data exchange and transformation. The book edited by Bellahsene, Bonifati and Rahm provides an overview of the ways in which the schema and ontology matching and mapping tools have addressed the above requirements and points to the open technical challenges. The contributions from leading experts are structured into three parts: large-scale and knowledge-driven schema matching, quality-driven schema mapping and evolution, and evaluation and tuning of matching tasks. The authors describe the state of the art by discussing the latest achievements such as more effective methods for matching data, mapping transformation verification, adaptation to the context and size of the matching and mapping tasks, mapping-driven schema evolution and merging, and mapping evaluation and tuning. The overall result is a coherent, comprehensive picture of the field.With this book, the editors introduce graduate students and advanced professionals to this exciting field. For researchers, they provide an up-to-date source of reference about schema and ontology matching, schema and ontology evolution, and schema merging.

Requiring heterogeneous information systems to cooperate and communicate has now become crucial, especially in application areas like e-business, Web-based mash-ups and the life sciences. Such cooperating systems have to automatically and efficiently match, exchange, transform and integrate large data sets from different sources and of different structure in order to enable seamless data exchange and transformation. The book edited by Bellahsene, Bonifati and Rahm provides an overview of the ways in which the schema and ontology matching and mapping tools have addressed the above requirements and points to the open technical challenges. The contributions from leading experts are structured into three parts: large-scale and knowledge-driven schema matching, quality-driven schema mapping and evolution, and evaluation and tuning of matching tasks. The authors describe the state of the art by discussing the latest achievements such as more effective methods for matching data, mapping transformation verification, adaptation to the context and size of the matching and mapping tasks, mapping-driven schema evolution and merging, and mapping evaluation and tuning. The overall result is a coherent, comprehensive picture of the field.With this book, the editors introduce graduate students and advanced professionals to this exciting field. For researchers, they provide an up-to-date source of reference about schema and ontology matching, schema and ontology evolution, and schema merging.

Das Buch vermittelt umfassende Grundlagen moderner Techniken des verteilten und parallelen Datenmanagements, die das Fundament moderner Informationssysteme bilden.

Das Buch bietet eine umfassende und aktuelle Darstellung der Konzepte und Techniken zur Implementierung von Datenbanksystemen. Ausgangspunkt ist ein hierarchisches Architekturmodell: Die Schichten dieses Modells ermoglichen es, den Systemaufbau, die Einordnung der bereitzustellenden Funktionen und ihr Zusammenspiel detailliert zu beschreiben. Es werden alle Aspekte der Datenabbildung mit den erforderlichen Algorithmen und Datenstrukturen behandelt, also vor allem Externspeicherabbildung, Realisierung von Speicherungsstrukturen und Zugriffspfaden sowie die Ableitung logischer Sichten. Neben der Datenabbildung, in deren Aufgaben sich Speicher-, Zugriffs- und Datensystem teilen, steht als zweiter Schwerpunkt des Buches das Transaktionskonzept und seine Erweiterungen. Dabei werden insbesondere alle Funktionen zur Synchronisation des Mehrbenutzerbetriebs und zur Wiederherstellung der Datenbank im Fehlerfall (Logging und Recovery) dargestellt.