2009 |
115 | | Johann Christoph Freytag,
Thomas Ruf,
Wolfgang Lehner,
Gottfried Vossen:
Datenbanksysteme in Business, Technologie und Web (BTW 2009), 13. Fachtagung des GI-Fachbereichs "Datenbanken und Informationssysteme" (DBIS), Proceedings, 2.-6. März 2009, Münster, Germany
GI 2009 |
114 | | Maik Thiele,
Andreas Bader,
Wolfgang Lehner:
Multi-Objective Scheduling for Real-Time Data Warehouses.
BTW 2009: 307-326 |
113 | | Steffen Preissler,
Hannes Voigt,
Dirk Habich,
Wolfgang Lehner:
Stream-Based Web Service Invocation.
BTW 2009: 407-417 |
112 | | Steffen Preissler,
Hannes Voigt,
Dirk Habich,
Wolfgang Lehner:
Streaming Web Services and Standing Processes.
BTW 2009: 608-611 |
111 | | Matthias Böhm,
Dirk Habich,
Wolfgang Lehner,
Uwe Wloka:
Systemübergreifende Kostennormalisierung für Integrationsprozesse.
BTW 2009: 67-86 |
110 | EE | Matthias Böhm,
Uwe Wloka,
Dirk Habich,
Wolfgang Lehner:
GCIP: exploiting the generation and optimization of integration processes.
EDBT 2009: 1128-1131 |
109 | EE | Philipp Rösch,
Wolfgang Lehner:
Sample synopses for approximate answering of group-by queries.
EDBT 2009: 403-414 |
108 | EE | Peter Benjamin Volk,
Frank Rosenthal,
Martin Hahmann,
Dirk Habich,
Wolfgang Lehner:
Clustering Uncertain Data with Possible Worlds.
ICDE 2009: 1625-1632 |
107 | EE | Matthias Böhm,
Dirk Habich,
Steffen Preissler,
Wolfgang Lehner,
Uwe Wloka:
Vectorizing Instance-Based Integration Processes.
ICEIS 2009: 40-52 |
106 | EE | Matthias Böhm,
Dirk Habich,
Wolfgang Lehner,
Uwe Wloka:
Invisible Deployment of Integration Processes.
ICEIS 2009: 53-65 |
2008 |
105 | | Matthias Böhm,
Dirk Habich,
Wolfgang Lehner,
Uwe Wloka:
An Advanced Transaction Model for Recovery Processing of Integration Processes.
ADBIS (local proceedings) 2008: 90-105 |
104 | EE | Matthias Böhm,
Jürgen Bittner,
Dirk Habich,
Wolfgang Lehner,
Uwe Wloka:
Improving Data Independence, Efficiency and Functional Flexibility of Integration Platforms.
CAiSE Forum 2008: 97-100 |
103 | EE | Matthias Böhm,
Uwe Wloka,
Dirk Habich,
Wolfgang Lehner:
Workload-based optimization of integration processes.
CIKM 2008: 1479-1480 |
102 | EE | Kai-Uwe Sattler,
Wolfgang Lehner:
Quality of service and predictability in DBMS.
EDBT 2008: 748 |
101 | EE | Philipp Rösch,
Rainer Gemulla,
Wolfgang Lehner:
Designing Random Sample Synopses with Outliers.
ICDE 2008: 1400-1402 |
100 | EE | Matthias Böhm,
Dirk Habich,
Wolfgang Lehner,
Uwe Wloka:
DIPBench Toolsuite: A Framework for Benchmarking Integration Systems.
ICDE 2008: 1596-1599 |
99 | EE | Christian Thomsen,
Torben Bach Pedersen,
Wolfgang Lehner:
RiTE: Providing On-Demand Data for Right-Time Data Warehousing.
ICDE 2008: 456-465 |
98 | EE | Matthias Böhm,
Dirk Habich,
Wolfgang Lehner,
Uwe Wloka:
DIPBench: An independent benchmark for Data-Intensive Integration Processes.
ICDE Workshops 2008: 214-221 |
97 | EE | Hannes Voigt,
Wolfgang Lehner,
Kenneth Salem:
Poster session: Constrained dynamic physical database design.
ICDE Workshops 2008: 63-70 |
96 | EE | Christoph Weyerhaeuser,
Tobias Mindnich,
Franz Faerber,
Wolfgang Lehner:
Exploiting Graphic Card Processor Technology to Accelerate Data Mining Queries in SAP NetWeaver BIA.
ICDM Workshops 2008: 506-515 |
95 | | Matthias Böhm,
Uwe Wloka,
Dirk Habich,
Wolfgang Lehner:
Model-Driven Generation and Optimization of Complex Integration Processes.
ICEIS (1) 2008: 131-136 |
94 | | Matthias Böhm,
Uwe Wloka,
Dirk Habich,
Wolfgang Lehner:
Message Indexing for Document-Oriented Integration Processes.
ICEIS (1) 2008: 137-142 |
93 | EE | Rainer Gemulla,
Wolfgang Lehner:
Sampling time-based sliding windows in bounded space.
SIGMOD Conference 2008: 379-392 |
92 | EE | Rainer Gemulla,
Philipp Rösch,
Wolfgang Lehner:
Linked Bernoulli Synopses: Sampling along Foreign Keys.
SSDBM 2008: 6-23 |
91 | EE | Rainer Gemulla,
Wolfgang Lehner,
Peter J. Haas:
Maintaining bounded-size sample synopses of evolving datasets.
VLDB J. 17(2): 173-202 (2008) |
2007 |
90 | | Wolfgang Lehner,
Norbert Meyer,
Achim Streit,
Craig Stewart:
Euro-Par 2006 Workshops: Parallel Processing, CoreGRID 2006, UNICORE Summit 2006, Petascale Computational Biology and Bioinformatics, Dresden, Germany, August 29-September 1, 2006, Revised Selected Papers
Springer 2007 |
89 | EE | Matthias Böhm,
Dirk Habich,
Uwe Wloka,
Jürgen Bittner,
Wolfgang Lehner:
Towards Self-Optimization of Message Transformation Processes.
ADBIS Research Communications 2007 |
88 | EE | Thomas Legler,
Wolfgang Lehner,
Andrew Ross:
Der Einfluss der Datenverteilung auf die Performanz eines Data Warehouse.
BTW 2007: 502-513 |
87 | EE | Matthias Böhm,
Jürgen Bittner,
Uwe Wloka,
Dirk Habich,
Wolfgang Lehner:
Ein Nachrichtentransformationsmodell für komplexe Transformationsprozesse in datenzentrischen Anwendungsszenarien.
BTW 2007: 562-581 |
86 | EE | Maik Thiele,
Ulrike Fischer,
Wolfgang Lehner:
Partition-based workload scheduling in living data warehouse environments.
DOLAP 2007: 57-64 |
85 | EE | Anja Klein,
Hong Hai Do,
Gregor Hackenbroich,
Marcel Karnstedt,
Wolfgang Lehner:
Representing Data Quality for Streaming and Static Data.
ICDE Workshops 2007: 3-10 |
84 | EE | Dirk Habich,
Peter Benjamin Volk,
Wolfgang Lehner,
Ralf Dittmann,
Clemens Utzny:
Error-Aware Density-Based Clustering of Imprecise Measurement Values.
ICDM Workshops 2007: 471-476 |
83 | EE | Wael Emara,
Mehmed M. Kantardzic,
Marcel Karnstedt,
Kai-Uwe Sattler,
Dirk Habich,
Wolfgang Lehner:
An Approach for Incremental Semi-supervised SVM.
ICDM Workshops 2007: 539-544 |
82 | EE | Dirk Habich,
Steffen Preissler,
Wolfgang Lehner,
Sebastian Richly,
Uwe Aßmann,
Mike Grasselt,
Albert Maier:
Data-Grey-BoxWeb Services in Data-Centric Environments.
ICWS 2007: 976-983 |
81 | EE | Dirk Habich,
Sebastian Richly,
Wolfgang Lehner,
Uwe Aßmann,
Mike Grasselt,
Albert Maier,
Christian Pilarsky:
Data-aware SOA for Gene Expression Analysis Processes.
IEEE SCW 2007: 138-145 |
80 | | Dirk Habich,
Martin Hahmann,
Wolfgang Lehner:
Parameterfreies Clustering mittels Multi-Level Ansatz.
LWA 2007: 36-43 |
79 | EE | Rainer Gemulla,
Wolfgang Lehner,
Peter J. Haas:
Maintaining bernoulli samples over evolving multisets.
PODS 2007: 93-102 |
78 | EE | Per-Åke Larson,
Wolfgang Lehner,
Jingren Zhou,
Peter Zabback:
Exploiting self-monitoring sample views for cardinality estimation.
SIGMOD Conference 2007: 1073-1075 |
77 | EE | Per-Åke Larson,
Wolfgang Lehner,
Jingren Zhou,
Peter Zabback:
Cardinality estimation using sample views with quality assurance.
SIGMOD Conference 2007: 175-186 |
76 | EE | Jingren Zhou,
Per-Åke Larson,
Johann Christoph Freytag,
Wolfgang Lehner:
Efficient exploitation of similar subexpressions for query processing.
SIGMOD Conference 2007: 533-544 |
75 | EE | Dirk Habich,
Sebastian Richly,
Steffen Preissler,
Mike Grasselt,
Wolfgang Lehner,
Albert Maier:
BPEL-DT - Data-aware Extension of BPEL to Support Data-Intensive Service Applications.
WEWST 2007 |
2006 |
74 | | Wolfgang E. Nagel,
Wolfgang V. Walter,
Wolfgang Lehner:
Euro-Par 2006, Parallel Processing, 12th International Euro-Par Conference, Dresden, Germany, August 28 - September 1, 2006, Proceedings
Springer 2006 |
73 | EE | Rainer Gemulla,
Wolfgang Lehner:
Deferred Maintenance of Disk-Based Random Samples.
EDBT 2006: 423-441 |
72 | EE | Patrick Valduriez,
Wolfgang Lehner,
Domenico Talia,
Paul Watson:
Topic 5: Parallel and Distributed Databases, Data Mining and Knowledge Discovery.
Euro-Par 2006: 335 |
71 | EE | Christian Schulze,
Joachim Spilke,
Wolfgang Lehner:
Zusammenführung der konzeptuellen Modelle für operative und analytische Daten in einem logischen Modell, dargestellt am Beispiel des Precision Dairy Farming.
GIL Jahrestagung 2006: 257-260 |
70 | EE | Sebastian Richly,
Dirk Habich,
Wolfgang Lehner:
GignoMDA - Generation of Complex Database Applications.
Grundlagen von Datenbanken 2006: 65-69 |
69 | EE | Maik Thiele,
Wolfgang Lehner:
Shrinked Data Marts Enabled for Negative Caching.
IDEAS 2006: 148-157 |
68 | EE | Dirk Habich,
Thomas Wächter,
Wolfgang Lehner,
Christian Pilarsky:
Two-Phase Clustering Strategy for Gene Expression Data Sets.
LWA 2006: 275-281 |
67 | EE | Dirk Habich,
Thomas Wächter,
Wolfgang Lehner,
Christian Pilarsky:
Two-phase clustering strategy for gene expression data sets.
SAC 2006: 145-150 |
66 | EE | Anja Klein,
Rainer Gemulla,
Philipp Rösch,
Wolfgang Lehner:
Derby/S: a DBMS for sample-based query answering.
SIGMOD Conference 2006: 757-759 |
65 | EE | Dirk Habich,
Wolfgang Lehner,
Michael Just:
Materialized Views in the Presence of Reporting Functions.
SSDBM 2006: 159-168 |
64 | EE | Maik Thiele,
Jens Albrecht,
Wolfgang Lehner:
Optimistic Coarse-Grained Cache Semantics for Data Marts.
SSDBM 2006: 311-320 |
63 | EE | Peter A. Boncz,
Angela Bonifati,
Arantza Illarramendi,
Peter Janacik,
Birgitta König-Ries,
Wolfgang Lehner,
Pedro José Marrón,
Wolfgang May,
Aris M. Ouksel,
Kay Römer,
Brahmananda Sapkota,
Kai-Uwe Sattler,
Heinz Schweppe,
Rita Steinmetz,
Can Türker:
06431 Working Group Report on Managing and Integrating Data in P2P Databases.
Scalable Data Management in Evolving Networks 2006 |
62 | EE | Thomas Legler,
Wolfgang Lehner,
Andrew Ross:
Data Mining with the SAP Netweaver BI Accelerator.
VLDB 2006: 1059-1068 |
61 | EE | Dirk Habich,
Sebastian Richly,
Wolfgang Lehner:
GignoMDA - Exploiting Cross-Layer Optimization for Complex Database Applications.
VLDB 2006: 1251- |
60 | EE | Rainer Gemulla,
Wolfgang Lehner,
Peter J. Haas:
A Dip in the Reservoir: Maintaining Sample Synopses of Evolving Datasets.
VLDB 2006: 595-606 |
59 | EE | Richard Lenz,
Wolfgang Lehner:
Schwerpunktthema Medizinische Informationssysteme.
Datenbank-Spektrum 17: 5-6 (2006) |
2005 |
58 | | Theo Härder,
Wolfgang Lehner:
Data Management in a Connected World, Essays Dedicated to Hartmut Wedekind on the Occasion of His 70th Birthday
Springer 2005 |
57 | EE | Rainer Gemulla,
Henrike Berthold,
Wolfgang Lehner:
Hierarchical Group-Based Sampling.
BNCOD 2005: 120-132 |
56 | EE | Wolfgang Lehner:
Data Management Support for Notification Services.
Data Management in a Connected World 2005: 111-136 |
55 | EE | Sven Schmidt,
Thomas Legler,
Daniel Schaller,
Wolfgang Lehner:
Real-Time Scheduling for Data Stream Management Systems.
ECRTS 2005: 167-176 |
54 | EE | Henrike Berthold,
Sven Schmidt,
Wolfgang Lehner,
Claude-Joachim Hamann:
Integrated resource management for data stream systems.
SAC 2005: 555-562 |
53 | | Sven Schmidt,
Marc Fiedler,
Wolfgang Lehner:
Source-aware Join Strategies of Sensor Data Streams.
SSDBM 2005: 123-132 |
52 | | Dirk Habich,
Wolfgang Lehner,
Alexander Hinneburg:
Optimizing Multiple Top-K Queries over Joins.
SSDBM 2005: 195-204 |
51 | EE | Sven Schmidt,
Thomas Legler,
Sebastian Schär,
Wolfgang Lehner:
Robust Real-time Query Processing with QStream.
VLDB 2005: 1299-1302 |
50 | EE | Sebastian Richly,
Wolfgang Lehner,
Daniel Schaller:
GignoMDA - modellgetriebene Entwicklung von Datenbankanwendungen.
Datenbank-Spektrum 15(14): 12-17 (2005) |
49 | EE | Lutz Schlesinger,
Florian Irmert,
Wolfgang Lehner:
Supporting the ETL-process by Web Service technologies.
IJWGS 1(1): 31-47 (2005) |
48 | EE | Rainer Gemulla,
Henrike Berthold,
Wolfgang Lehner:
Hierarchisches gruppenbasiertes Sampling.
Inform., Forsch. Entwickl. 20(1-2): 45-56 (2005) |
2004 |
47 | | Sven Schmidt,
Dirk Habich,
Wolfgang Lehner:
Feingranulare Verarbeitung von XML-Strömen.
GI Jahrestagung (1) 2004: 378-382 |
46 | | Christian Schulze,
Joachim Spilke,
Wolfgang Lehner:
Informationsbedarfsanalyse als Grundlage der Datenmodellierung in Rahmen des Precision Dairy Farming.
GIL Jahrestagung 2004: 323-326 |
45 | EE | Wolfgang Lehner:
Robust Data Management.
Mobile Information Management 2004 |
44 | EE | Sven Schmidt,
Henrike Berthold,
Wolfgang Lehner:
QStream: Deterministic Querying of Data Streams.
VLDB 2004: 1365-1368 |
43 | | Wolfgang Lehner,
Lutz Schlesinger,
Verena Sauerborn:
Verknüpfung schwach-konsistenter Datenbankzustände in Grid-organisierten Rechnerstrukturen.
Datenbank-Spektrum 9: 40-47 (2004) |
42 | | Daniel A. Keim,
Wolfgang Lehner:
Data Mining und Data Warehousing.
Datenbank-Spektrum 9: 5 (2004) |
2003 |
41 | EE | Wolfgang Lehner,
Florian Irmert:
XPath-Aware Chunking of XML-Documents.
BTW 2003: 108-126 |
40 | EE | Lutz Schlesinger,
Wolfgang Lehner:
Konsistenzquantifizierung in Grid-Datenbanksystemen.
BTW 2003: 404-422 |
39 | EE | Lutz Schlesinger,
Wolfgang Lehner:
SCINTRA: A Model for Quantifying Inconsistencies in Grid-Organized Sensor Database Systems.
Euro-Par 2003: 348-355 |
38 | EE | Alexander Hinneburg,
Wolfgang Lehner:
Database Support for 3D-Protein Data Set Analysis.
SSDBM 2003: 161-170 |
37 | EE | Andreas Bauer,
Wolfgang Lehner:
On Solving the View Selection Problem in Distributed Data Warehouse Architectures.
SSDBM 2003: 43- |
36 | EE | Alexander Hinneburg,
Wolfgang Lehner,
Dirk Habich:
COMBI-Operator: Database Support for Data Mining Applications.
VLDB 2003: 429-439 |
35 | | Lutz Schlesinger,
Wolfgang Lehner:
WebService-basierte Integration externer Datenquellen in relationale Datenbanksysteme.
XMIDX 2003: 11-21 |
34 | EE | Sven Schmidt,
Rainer Gemulla,
Wolfgang Lehner:
XML Stream Processing Quality.
Xsym 2003: 195-207 |
33 | | Wolfgang Lehner:
Entwurf und Betrieb von Data-Warehouse-Systemen.
it - Information Technology 45(4): 177-178 (2003) |
32 | | Lutz Schlesinger,
Wolfgang Lehner,
Wolfgang Hümmer,
Andreas Bauer:
Nutzung von Datenbankdiensten in Data-Warehouse-Anwendungen.
it - Information Technology 45(4): 203-210 (2003) |
2002 |
31 | EE | Lutz Schlesinger,
Wolfgang Lehner:
Extending data warehouses by semiconsistent views.
DMDW 2002: 43-51 |
30 | EE | Wolfgang Lehner,
Wolfgang Hümmer,
Lutz Schlesinger,
Andreas Bauer:
On the problem of generating common predecessors.
DOLAP 2002: 43-48 |
29 | EE | Wolfgang Hümmer,
Wolfgang Lehner,
Andreas Bauer,
Lutz Schlesinger:
A Decathlon in Multidimensional Modeling: Open Issues and Some Solutions.
DaWaK 2002: 275-285 |
28 | EE | Wolfgang Lehner,
Wolfgang Hümmer,
Lutz Schlesinger:
Processing Reporting Function Views in a Data Warehouse Environment.
ICDE 2002: 176- |
27 | EE | Wolfgang Hümmer,
Wolfgang Lehner,
Hartmut Wedekind:
Contracting in the Days of eBusiness.
SIGMOD Record 31(1): 31-36 (2002) |
2001 |
26 | EE | Lutz Schlesinger,
Andreas Bauer,
Wolfgang Lehner,
G. Ediberidze,
Michael M. Gutzmann:
Efficiently Synchronizing Multidimensional Schema Data.
DOLAP 2001 |
25 | EE | Wolfgang Lehner,
Roberta Cochrane,
Hamid Pirahesh,
Markos Zaharioudakis:
fAST Refresh using Mass Query Optimization.
ICDE 2001: 391-398 |
24 | | Wolfgang Lehner,
Wolfgang Hümmer,
M. Redert,
C. Reinhard:
`Publish/Subscribe'-Mechanismen in Data-Warehouse-Systemen.
Datenbank Rundbrief 27: 25-32 (2001) |
23 | | Andreas Bauer,
Wolfgang Lehner:
Arbeitskreis Konzepts des Data Warehousing.
Datenbank Rundbrief 27: 54-55 (2001) |
2000 |
22 | EE | Wolfgang Lehner,
Jens Albrecht,
Wolfgang Hümmer:
Divide and aggregate: caching multidimensional objects.
DMDW 2000: 2 |
21 | EE | Jens Albrecht,
Wolfgang Hümmer,
Wolfgang Lehner,
Lutz Schlesinger:
Query Optimization by Using Derivability in a Data Warehouse Environment.
DOLAP 2000: 49-56 |
20 | EE | Andreas Bauer,
Wolfgang Hümmer,
Wolfgang Lehner:
An Alternative Relational OLAP Modeling Approach.
DaWaK 2000: 189-198 |
19 | | Jens Albrecht,
Wolfgang Hümmer,
Wolfgang Lehner,
Lutz Schlesinger:
Using Semantics for Query Derivability in Data Warehouse Applications.
FQAS 2000: 3-14 |
18 | | Holger Günzel,
Jens Albrecht,
Wolfgang Lehner:
Use and reuse of association rules in an OLAP environment.
IRMA Conference 2000: 566-569 |
17 | EE | Wolfgang Lehner,
Richard Sidle,
Hamid Pirahesh,
Roberta Cochrane:
Maintenance of Automatic Summary Tables.
SIGMOD Conference 2000: 512-513 |
1999 |
16 | EE | Holger Günzel,
Jens Albrecht,
Wolfgang Lehner:
Data Mining in a Multidimensional Environment.
ADBIS 1999: 191-204 |
15 | | Jens Albrecht,
Wolfgang Hümmer,
Wolfgang Lehner,
Lutz Schlesinger:
Adaptive Präaggregation in multidimensionalen Datenbanksystemen.
BTW 1999: 97-114 |
14 | EE | Jens Albrecht,
Holger Günzel,
Wolfgang Lehner:
Set-Derivability of Multidimensional Aggregates.
DaWaK 1999: 133-142 |
13 | EE | Jens Albrecht,
Andreas Bauer,
O. Deyerling,
Holger Günzel,
Wolfgang Hümmer,
Wolfgang Lehner,
Lutz Schlesinger:
Management of Multidimensional Aggregates for Efficient Online Analytical Processing.
IDEAS 1999: 156-164 |
1998 |
12 | EE | Holger Günzel,
Wolfgang Lehner,
Stein Eriksen,
Jon Folkedal:
Modeling of Census Data in a Multidimensional Environment.
ADBIS 1998: 363-368 |
11 | EE | Wolfgang Lehner:
Modelling Large Scale OLAP Scenarios.
EDBT 1998: 153-167 |
10 | | Jens Albrecht,
Wolfgang Lehner:
On-line Analytical Processing in Distributed Data Warehouses.
IDEAS 1998: 78-85 |
9 | EE | Wolfgang Lehner,
Jens Albrecht,
Hartmut Wedekind:
Normal Forms for Multidimensional Databases.
SSDBM 1998: 63-72 |
8 | | Wolfgang Lehner,
Jens Albrecht:
Modellierung, verwaltung und Verwendung Multidimensionaler Aggregate.
Workshop Data Mining und Data Warehousing 1998: 37-47 |
1997 |
7 | | Wolfgang Lehner,
Michael Teschke,
Hartmut Wedekind:
Über Aufbau und Auswertung multidimensionaler Daten.
BTW 1997: 241-250 |
6 | EE | Wolfgang Lehner,
Thomas Ruf:
A Redundancy-Based Optimization Approach for Aggregation in Multidimensional Scientific and Atatistical Databases.
DASFAA 1997: 253-262 |
5 | EE | Andreas Bauer,
Wolfgang Lehner:
The Cube-Query-Languages (CQL) for Multidimensional Statistical and Scientific Database Systems.
DASFAA 1997: 263-272 |
4 | | Jens Albrecht,
Wolfgang Lehner,
Michael Teschke,
Thomas Kirsche:
Building a Real Data Warehouse for Market Research.
DEXA Workshop 1997: 651-656 |
3 | | Peter Baumann,
Wolfgang Lehner:
Der GI-Arbeitskreis Multidimensionale Datenbanken stellt sich vor.
Datenbank Rundbrief 19: 82-83 (1997) |
1996 |
2 | EE | Wolfgang Lehner,
Thomas Ruf,
Michael Teschke:
CROSS-DB: A Feature-Extended Multidimensional Data Model for Statistical and Scientific Databases.
CIKM 1996: 253-260 |
1 | | Wolfgang Lehner,
Thomas Ruf,
Michael Teschke:
Improving Query Response Time in Scientific Databases Using Data Aggregation - A Case Study.
DEXA Workshop 1996: 201-206 |