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52no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLMarkus Bick, Martin Breunig, Hagen Höpfner: Mobile und Ubiquitäre Informationssysteme - Entwicklung, Implementierung und Anwendung. Proceedings zur 4. Konferenz Mobile und Ubiquitäre Informationssysteme (MMS 2009), 3. März 2009 in Münster, Germany GI 2009
51Electronic Edition pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLEssam Mansour, Hagen Höpfner: An XML-Based Model for Supporting Context-Aware Query and Cache Management. BNCOD 2009: 107-119
50no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner, Jörg Schad, Sebastian Wendland, Essam Mansour: MyMIDP and MyMIDP-Client: Direct Access to MySQL Databases from Cell Phones. BTW 2009: 604-607
49Electronic Edition pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLEssam Mansour, Hagen Höpfner: An approach to detecting relevant updates to cached data using XML and active databases. EDBT 2009: 791-802
48Electronic Edition pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner, Christian Bunse: Towards an Energy Aware DBMS - Energy Consumptions of Sorting and Join Algorithms. Grundlagen von Datenbanken 2009: 69-73
47no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLEssam Mansour, Hagen Höpfner: A Rule-based Approach and Framework for Managing Best Practices - An XML-based Management using Pure Database System Utilities. ICEIS (3) 2009: 109-115
46no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLSuman Roychoudhury, Christian Bunse, Hagen Höpfner: Applying State-of-the-Art Techniques for Embedded Software Adaptation. ICSOFT (1) 2009: 305-308
45no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLChristian Bunse, Hagen Höpfner, Suman Roychoudhury, Essam Mansour: Choosing the "Best" Sorting Algorithm for Optimal Energy Consumption. ICSOFT (2) 2009: 199-206
44no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner, Jörg Schad, Essam Mansour: On Analyzing the Database Performance for Different Classes of XML Documents based on the used Storage Approach. ICSOFT (2) 2009: 243-248
43no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner, Sebastian Wendland, Essam Mansour: Data Caching on Mobile Devices - The Experimental MyMIDP Caching Framework. ICSOFT (2) 2009: 256-259
42Electronic Edition pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLEssam Mansour, Hagen Höpfner: Towards an XML-Based Query and Contextual Information Model in Context-Aware Mobile Information Systems. Mobile Data Management 2009: 574-579
41Electronic Edition pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLChristian Bunse, Hagen Höpfner, Essam Mansour, Suman Roychoudhury: Exploring the Energy Consumption of Data Sorting Algorithms in Embedded and Mobile Environments. Mobile Data Management 2009: 600-607
40Electronic Edition pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLEssam Mansour, Hagen Höpfner: An XML-Based Manipulation and Query Language for Rule-Based Information. RuleML 2009: 231-245
39Electronic Edition pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner, Essam Mansour, Daniela Nicklas: Review of Data Management Mechanisms on Mobile Devices (Überblick über Datenmanagementmechanismen auf mobilen Endgeräten). it - Information Technology 51(2): 79-84 (2009)
2008
38no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner, Friederike Klan: Proceedings of the 20. GI-Workshop on Foundations of Databases (Grundlagen von Datenbanken), Apolda, Thüringen, Germany, May 13-16, 2008 School of Information Technology, International University in Germany 2008
37Electronic Edition pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner: Towards a Syntactic and Partially Semantic Optimization of Database Queries for Indexing Purposes. Grundlagen von Datenbanken 2008: 11-14
36no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner, Erik Buchmann: Towards Compact Operator Trees for Query Indexing. ICSOFT (ISDM/ABF) 2008: 174-179
35no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLChristian Bunse, Hagen Höpfner: Resource Substitution With Components - Optimizing Energy Consumption. ICSOFT (SE/MUSE/GSDCA) 2008: 28-35
34Electronic Edition pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner: Topologisches Sortieren - Mit welcher Aufgabe meiner ToDo-Liste fange ich an? Taschenbuch der Algorithmen 2008: 43-49
33Electronic Edition pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLRüdiger Foos, Christian Bunse, Hagen Höpfner, Torsten Zimmermann: TML: an XML-based test modeling language. ACM SIGSOFT Software Engineering Notes 33(2): (2008)
2007
32Electronic Edition pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner, Stefan Conrad: Proceedings of the Studierendenprogramm at the 12th GI-conference on Database Systems in Business, Technology and Web, Aachen, March 6, 2007 International University, Bruchsal, Germany 2007
31Electronic Edition pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner, Friederike Klan: Post-Proceedings of the 19. GI-Workshop on Foundations of Databases (Grundlagen von Datenbanken), Bretten, Baden-Württemberg, Germany, May 29 - June 1, 2007 School of Information Technology, International University in Germany 2007
30Electronic Edition pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner, Keiichi Nakata: On Teaching Mobile Databases and Information Systems. BNCOD Workshops 2007: 48-58
29no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner, Christian Bunse: Resource Substitution for the Realization of Mobile Information Systems. ICSOFT (SE) 2007: 283-289
28no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLAlexandru Caracas, Iulia Ion, Mihaela Ion, Hagen Höpfner: Towards Java-based Data Caching for Mobile Information System Clients. MMS 2007: 97-101
27Electronic Edition pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLIulia Ion, Alexandru Caracas, Hagen Höpfner: MTrainSchedule: Combining Web Services and Data Caching on Mobile Devices. Datenbank-Spektrum 21(20): 51-53 (2007)
2006
26no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLTorsten Grust, Hagen Höpfner, Arantza Illarramendi, Stefan Jablonski, Marco Mesiti, Sascha Müller, Paula-Lavinia Patranjan, Kai-Uwe Sattler, Myra Spiliopoulou, Jef Wijsen: Current Trends in Database Technology - EDBT 2006, EDBT 2006 Workshops PhD, DataX, IIDB, IIHA, ICSNW, QLQP, PIM, PaRMA, and Reactivity on the Web, Munich, Germany, March 26-31, 2006, Revised Selected Papers Springer 2006
25Electronic Edition pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner: Using Database Techniques for Realizing Context Aware Mobile Information Systems. Grundlagen von Datenbanken 2006: 70-74
24no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner: On context aware predicate sequence queries. ICSOFT (2) 2006: 108-114
23no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner: Update Relevance under the Multiset Semantics of RDBMS. MMS 2006: 33-44
22Electronic Edition pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner: Anfragebasierte Client-Indexierung in Client-Server-Informationssystemen. Inform., Forsch. Entwickl. 20(4): 209-221 (2006)
2005
21no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner, Gunter Saake, Felix Naumann, Andreas Heuer: Beitragsband zum Studierenden-Programm bei der 11. Fachtagung "Datenbanken für Business, Technologie and Web", GI Fachbereich Datenbanken und Informationssysteme, Karlsruhe, 1. März 2005 Universität Magdeburg, Fakultät für Informatik 2005
20no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner, Can Türker, Birgitta König-Ries: Mobile Datenbanken und Informationssysteme: Konzepte und Techniken dpunkt 2005
19no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner: Towards Update Relevance Checks in a Context Aware Mobile Information System. GI Jahrestagung (2) 2005: 553-557
2004
18no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner, Gunter Saake: Beitragsband zum Workshop "Grundlagen und Anwendungen mobiler Informationstechnologie" des GI-Arbeitskreises Mobile Datenbanken und Informationssysteme, Heidelberg, 23.-24. März 2004 Fakultät für Informatik, Universität Magdeburg 2004
17Electronic Edition pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner, Stephan Schosser, Kai-Uwe Sattler: An Indexing Scheme for Update Notification in Large Mobile Information Systems. EDBT Workshops 2004: 345-354
16no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner: Serverseitige Auswertung von Indexen semantischer, clientseitiger Caches in mobilen Informationssystemen. GI Jahrestagung (1) 2004: 298-302
15no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner, Eike Schallehn: Anfraggeneralisierung zur komprimierten Repräsentation von Indexen semantischer Caches auf mobilen Endgeräten. Grundlagen und Anwendungen mobiler Informationstechnologie 2004: 63-70
14Electronic Edition pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLCatharine M. Wyss, Anne E. James, Wilhelm Hasselbring, Stefan Conrad, Hagen Höpfner: Report on the Engineering Federated Information Systems 2003 workshop (EFIS 2003). ACM SIGSOFT Software Engineering Notes 29(2): 1-3 (2004)
2003
13no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner, Gunter Saake, Eike Schallehn: Tagungsband zum 15. GI-Workshop Grundlagen von Datenbanken, Tangermünde, Sachsen-Anhalt, 10.-13. Juni 2003 Fakultät für Informatik, Universität Magdeburg 2003
12no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner, Kai-Uwe Sattler: SmoS: A Scalable Mobility Server. BNCOD Posters 2003: 49-52
11no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLMarcel Karnstedt, Kai-Uwe Sattler, Ingolf Geist, Hagen Höpfner: Semantic Caching in Ontology-based Mediator Systems. Berliner XML Tage 2003: 155-169
10no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner, Kai-Uwe Sattler: Cache-supported Processing of Queries in Mobile DBS. Database Mechanisms for Mobile Applications 2003: 106-121
9no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner, Kai-Uwe Sattler: Semantic Replication in Mobile Federated Information Systems. EFIS 2003: 36-41
8no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLFelix Alcala, Jöran Beel, Arne Frenkel, Bela Gipp, Johannes Lülf, Hagen Höpfner: Ortung von mobilen Geräten für die Realisierung lokationsbasierter Diensten. Mobilität und Informationssysteme 2003
7no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLBirgitta König-Ries, Hagen Höpfner: Persisten, Skalierbarkeit, Transaktionen - Datenbankmechanismen für mobile Anwendungen: Bericht vom Workshop und Frührjahrstreffen des GI-Arbeitskreises "Mobile Datenbanken und Informationssysteme", 10./11. April 2003, Karlsruhe. Datenbank-Spektrum 6: 78-79 (2003)
2002
6no EE pubzone.org CiteSeerX Google scholar BibTeX bibliographical record in XMLHagen Höpfner, Gunter Saake: Tagungsband Workshop Mobile Datenbanken und Informationssysteme - Datenbanktechnologie überall und jederzeit, Arbeitskreis Mobile Datenbanken und Informationssysteme im GI-Fachausschuss 2.5, Magdeburg, 21.-22. März 2002 Otto-von-Guericke-Universität Magdeburg 2002
5no EE pubzone.org