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Conference Paper
Kalo, J. - C., C. Lofi, R. P. Maseli, and W. - T. Balke, "Semantic Query Processing: Estimating Relational Purity", 15th Lernen Wissen Daten Analysen (LWDA) Conference, Rostock, Germany, 09/2017. Abstract  Download: LWDA_2017_paper_15.pdf (1.01 MB)
Balke, W. - T., and A. Badii, "Service Provisioning in the Dynamic Enterprise Space", Interdisciplinary Research Workshop on Global IT Outsourcing, Cambridge, UK, 2003. Abstract  Download: cambridge03.pdf (114.51 KB)
Balke, W. - T., W. Kießling, and C. Unbehend, "A Situation-aware Mobile Traffic Information System", 36th Hawaii International Conference on System Sciences (HICCS-36), Big Island, HI, USA, IEEE, 2003. Abstract  Download: hicss03.pdf (1.18 MB)
Maarry, K. E., W. - T. Balke, H. Cho, S. -won Hwang, and Y. Baba, "Skill ontology-based model for Quality Assurance in Crowdsourcing", Workshop on Uncertain and Crowdsourced Data (UnCrowd), DASFAA, Bali, Indonesia, 04/2014. Abstract  Download: DASFAA14_UnCrowd_2.pdf (100.82 KB)
Balke, W. - T., "Skyline Queries for Preference-Based Information Systems (Keynote)", 20th GI Workshop on Foundations of Databases (GvD), Apolda, Germany, 2008. Abstract  Download: gvdb08.pdf (168.1 KB)
Lofi, C., K. E. Maarry, and W. - T. Balke, "Skyline Queries in Crowd-Enabled Databases", Int. Conf. on Extending Database Technology (EDBT), Genoa, Italy, 03/2013. Abstract  Download: 13_edbt_final2.pdf (1.31 MB)
Lofi, C., K. E. Maarry, and W. - T. Balke, "Skyline Queries over Incomplete Data - Error Models for Focused Crowd-Sourcing", 32th Int. Conf. on Conceptual Modeling (ER), Hong Kong, China, 11/2013. Abstract  Download: paper_118.pdf (977.04 KB)
Selke, J., and W. - T. Balke, "SkyMap: A Trie-Based Index Structure for High-Performance Skyline Query Processing", 22nd International Conference on Database and Expert Systems Applications (DEXA 2011), Toulouse, France, Springer, 08/2011. Abstract  Download: dexa 2011 - final.pdf (250.28 KB)
Balke, W. - T., "Specialized Information Services - Hype or Important Change in Library Culture? (Panel)", International Conference on Theory and Practice of Digital Libraries (TPDL), Hannover, Germany, 09/2016. Abstract  Download: Panel Abstract - TPDL 2016.pdf (86.03 KB)
Ehrich, H. - D., U. W. Lipeck, and M. Gogolla, "Specification, Semantics, and Enforcement of Dynamic Database Constraints", Proc Int Conf on Very Large Databases VLDB '84, pp. 301-308, 1984. Abstract  Download: 1984VLDB.pdf (462.55 KB)
Lipeck, U. W., H. - D. Ehrich, and M. Gogolla, "Specifying Admissability of Dynamic Database Behaviour Using Temporal Logic", Proc IFIP Working Conf on Theoretical and Formal Aspects of Information Systems: North-Holland, Amsterdam, pp. 145-157, 1985. Abstract  Download: 1985TFAIS.pdf (602.54 KB)
Denker, G., and H. - D. Ehrich, "Specifying Distributed Information Systems: Fundamentals of an Object-Oriented Approach Using Distributed Temporal Logic", Formal Methods for Open Object-Based Distributed Systems (FMOODS'97), Volume 2, IFIP TC6 WG6.1 Intern.\ Workshop, 21-23 July, Canterbury, Kent, UK: Chapman & Hall, pp. 89-104, 1997. Abstract  Download: 1997DenkerEhrich.pdf (548.39 KB)
Ehrich, H. - D., "Spezifikation konzeptioneller Schemata mit abstrakten Datentypen und Versionen", Proc. GI-Fachgespräch ``Entwurf von Informationssystemen - Methoden und Modelle'', pp. 1-19, 1985. Abstract  Download: 1985Tutzing.pdf (877.62 KB)
Hartmann, T., R. Jungclaus, G. Saake, and H. - D. Ehrich, "Spezifikation von Objektsystemen", Objektbanken für Experten: Springer, Berlin, Reihe Informatik aktuell, pp. 220-242, 1992. Abstract  Download: 1992ObjBankExpert.pdf (1.72 MB)
Balke, W. - T., and U. Güntzer, "Supporting Skyline Queries on Categorical Data in Web Information Systems", IASTED International Conference on Internet and Multimedia Systems and Applications (IMSA 2004), Kauai, HI, USA, 2004. Abstract  Download: imsa04.pdf (296.1 KB)
Tönnies, S., B. Köhncke, and W. - T. Balke, "Taking Chemistry to the Task – Personalized Queries for Chemical Digital Libraries", 11th ACM/IEEE Joint Conference on Digital Libraries (JCDL), Ottawa, Canada, 06/2011. Abstract  Download: jcdl054-toennies.pdf (766.81 KB)
Nahrstedt, K., and W. - T. Balke, "A Taxonomy for Multimedia Service Composition", 12th Annual ACM Multimedia Conference (MM 2004), New York, NY, USA, ACM, 2004. Abstract  Download: mm04.pdf (226.93 KB)
Ehrich, H. - D., and P. Hartel, "Temporal Specification of Information Systems", Logic and Software Engineering, Proc. Int. Workshop in Honor of C.S. Tang, Beijing, 14-15 August 1995: World Scientific, pp. 43-71, 1996. Abstract  Download: 1996Beijing.pdf (283.86 KB)
Ehrich, H. - D., "Theory of Direct-Access Storage Functions", Proc. IFIP'74 Congress, pp 647-651: North-Holland, 1974. Abstract  Download: 1974IFIP.pdf (217.89 KB)
Hohenstein, U., L. Neugebauer, G. Saake, and H. - D. Ehrich, "Three-Level Specification of Databases Using an Extended Entity-Relationship Model", Proc GI-Fachtagung ``Informationsermittlung und -analyse für den Entwurf von Informationssystemen'': Informatik-Fachbericht 143, Springer, Berlin, 1987, pp. 58-88, 1987. Abstract  Download: 1987ThreeLevelSpec.pdf (1.21 MB)
Balke, W. - T., and M. Wagner, "Through Different Eyes – Assessing Multiple Conceptual Views for Querying Web Services", 13th International World Wide Web Conference (WWW 2004), New York, NY, USA, 2004. Abstract  Download: www04.pdf (184.9 KB)
Homoceanu, S., S. Tönnies, P. Wille, and W. - T. Balke, "Time-Based Exploratory Search in Scientific Literature", Research and Advanced Technologies for Digital Libraries: 17th International Conference on Theory and Practice of Digital Libraries (TPDL), Valletta, Malta, 09/2013. Abstract  Download: essence_crc.pdf (538.82 KB)
Nejdl, W., W. Siberski, U. Thaden, and W. - T. Balke, "Top-k Query Evaluation for Schema-Based Peer-to-Peer Networks", 3rd International Semantic Web Conference (ISWC 2004), Hiroshima, Japan, Springer , 2004. Abstract  Download: iswc04.pdf (142.1 KB)
Nieke, C., U. Güntzer, and W. - T. Balke, "TopCrowd – Efficient Crowd-enabled Top-k Retrieval on Incomplete Data", 33rd Int. Conf. on Conceptual Modeling (ER), Atlanta, GA, USA, 10/2014. Abstract  Download: 2014_ER_TopCrowd.pdf (563.87 KB)
Diederich, J., and W. - T. Balke, "Topic-Based User Models: Design & Comparison", 10th DELOS Thematic Workshop on Personalized Access, Profile Management, and Context Awareness in Digital Libraries (PersDL), Corfu, Greece, 2007. Abstract  Download: persdl07.pdf (133.94 KB)
Zaka, B., N. Kulathuramaiyer, W. - T. Balke, and H. Maurer, "Topic-Centered Aggregation of Presentations for Learning Object Repurposing", World Conference on E-Learning in Corporate, Government, Healthcare, & Higher Education (E-Learn), Las Vegas, NV, USA, 2008. Abstract  Download: elearn08.pdf (410.94 KB)
Ehrich, H. - D., K. Drosten, and M. Gogolla, "Towards an Algebraic Semantics for Database Specification", Proc 2nd IFIP WG 2.6 Working Conf on Database Semantics ``Data and Knowledge'' (DS-2), Albufeira, Portugal, North-Holland, Amsterdam, pp. 119-135, 1988. Abstract  Download: 1988Albufeira.pdf (1.08 MB)
Luthmann, L., S. Mennicke, and M. Lochau, "Towards an I/O Conformance Testing Theory for Software Product Lines based on Modal Interface Automata", International Workshop on Formal Methods and Analysis in Software Product Line Engineering (FMSPLE 2016), London, UK, EPTCS, 04/2015. Abstract