- Efficient XQuery Evaluation of Grouping Conditions with Duplicate Removals
N. May,
G. Moerkotte
Proceedings of the Fifth International XML Database Symposium (XSym), Vienna, Austria, 2007
- Let a Single FLWOR Bloom (to improve XQuery plan generation)
M. Brantner,
C.-C. Kanne,
G. Moerkotte
Proceedings of the Fifth International XML Database Symposium (XSym), Vienna, Austria, 2007
- Let a Single FLWOR Bloom
Matthias Brantner,
Carl-Christian Kanne,
Guido Moerkotte
Technical Report, 2007
- Declarative Development of Distributed Applications
A. Böhm
Proceedings SIGMOD2007 Ph.D. Workshop on Innovative Database Research 2007(IDAR2007) (Poster Paper), 2007
- Declarative Development of Distributed Applications
A. Böhm
Technical Report, 2007
- Impedantix: An API for Native XML Data Stores
A. Böhm,
M. Brantner,
Sven Helmer,
Alexander Hollmann,
C.-C. Kanne,
N. May,
G. Moerkotte
Technical Report, 2007
- Demaq: A Foundation for Declarative XML Message Processing
A. Böhm,
C.-C. Kanne,
G. Moerkotte
Proc. 3. Biennial Conference on Innovative Data Systems Research (CIDR), Asilomar, CA, USA, 2007
- Unnesting Scalar SQL Queries in the Presence of Disjunction
M. Brantner,
N. May,
G. Moerkotte
Proc. 23. ICDE Conference, Istanbul, Turkey, 2007
- On the Optimal Ordering of Maps, Selections, and Joins Under Factorization
T. Neumann,
Sven Helmer,
G. Moerkotte
Proceedings of 23rd British National Conference on Databases (BNCOD), 2006
- Kappa-Join: Efficient Execution of Existential Quantification in XML Query Languages
M. Brantner,
Sven Helmer,
C.-C. Kanne,
G. Moerkotte
Proc. Workshop Fourth International XML Database Symposium, Seoul, Korea, 2006
- Index vs. Navigation in XPath Evaluation
N. May,
M. Brantner,
A. Böhm,
C.-C. Kanne,
G. Moerkotte
Proc. Workshop Fourth International XML Database Symposium, Seoul, Korea, 2006
- A Linear-Time Algorithm for Optimal Tree Sibling Partitioning and Approximation Algorithms in Natix
C.-C. Kanne,
G. Moerkotte
Proc. 32nd VLDB Conference, Seoul, Korea, 2006
- A Linear-Time Algorithm for Optimal Tree Sibling Partitioning and Approximation Algorithms in Natix
C.-C. Kanne,
G. Moerkotte
Technical report, 2006
- Template Folding for XPath
C.-C. Kanne,
G. Moerkotte
Third International Workshop on XQuery Implementation, Experience and Perspectives (XIME-P 2006), 2006
- Implementierung von skalierbaren, hochperformanten Web Services durch deklarative Nachrichtenverarbeitung
A. Böhm,
C.-C. Kanne,
G. Moerkotte
Proc. doIT Software-Forschungstag 2006, Mannheim, 2006
- Implementierung von skalierbaren, hochperformanten Web Services durch deklarative Nachrichtenverarbeitung
A. Böhm,
C.-C. Kanne,
G. Moerkotte
Technical Report, 2006
- Unnesting SQL Queries in the Presence of Disjunction
M. Brantner,
N. May,
G. Moerkotte
Technical report, 2006
- A Declarative Control Language for Dependable XML Message Queues
A. Böhm,
C.-C. Kanne,
G. Moerkotte
Proc. Workshop Dependability in Large-scale Service-oriented Systems (at ARES Conference), Vienna, Austria, 2006
- Strategies for Query Unnesting in XML Databases
N. May,
S. Helmer,
G. Moerkotte
ACM Transactions on Database Systems, 2006
- Kappa-Join: Efficient Execution of Existential Quantification in XML Query Languages
M. Brantner,
S. Helmer,
C-C. Kanne,
G. Moerkotte
Technical Report, 2006
- DP-Counter Analytics
G. Moerkotte
Technical report, 2006
- Analysis of Two Existing and One New Dynamic Programming Algorithm for the Generation of Optimal Bushy Join Trees without Cross Products / DP-Counter Analytics
G. Moerkotte,
T. Neumann
Proc. 32nd VLDB Conference, Seoul, Korea, 2006
- Ontologies for Location-based Services
M. Brantner,
S. Helmer,
C.-C. Kanne,
G. Moerkotte
In Handbook of Research in Mobile Business: Technical, Methodological and Social Perspectives (ed.: B. Unhelkar), Idea Group, Inc., Hershey, PA, USA, 2006
- Natix Visual Interfaces
A. Böhm,
M. Brantner,
C.-C. Kanne,
N. May,
G. Moerkotte
Proc. 10. International Conference on Extending Database Technology (Demo Paper), 2006
- The importance of sibling clustering for efficient bulkload of XML document trees
C.-C. Kanne,
G. Moerkotte
IBM Systems Journal, Number 2, Volume 45, 2006
- Algebraic Optimization of Nested XPath Expressions
M. Brantner,
C.-C. Kanne,
S. Helmer,
G. Moerkotte
Proc. 22. ICDE Conference, Atlanta, USA (Poster Paper), 2006
- Formally Specifying the Syntax and Semantics of a Visual Query
Language for the Domain of High Energy Physics Data Analysis
V. Amaral,
S. Helmer,
G. Moerkotte
IEEE Symposium on Visual Languages and Human-Centric Computing
(VL/HCC), 2005
- A Model-Based Monitoring and Diagnosis System for a Space-Based Astrometry Mission
Aleksei Pavlov,
Sven Helmer,
Guido Moerkotte
Proc. 16th International Conference on Database and Expert Systems Applications, Copenhagen, Denmark, 2005
- Algebraic Translation and Optimization of (Nested) XPath Expressions
M. Brantner,
C.-C. Kanne,
S. Helmer,
G. Moerkotte
Proc. Dutch Belgian Database Day, Amsterdam, Netherlands, 2005
- Main Memory Implementations for Binary Grouping
N. May,
G. Moerkotte
3rd Int. XML Database Symposium (XSym 2005), Trondheim, Norway, 2005
- Main Memory Implementations for Binary Grouping
N. May,
G. Moerkotte
Technical Report, 2005
- Cost-Sensitive Reordering of Navigational Primitives
C.-C. Kanne,
M. Brantner,
G. Moerkotte
Proc. 24th ACM SIGMOD -SIGACT-SIGART Symposium on Principles of Database Systems, Baltimore, Maryland, 2005
- Full-fledged Algebraic XPath Processing in Natix
M. Brantner,
C.-C. Kanne,
S. Helmer,
G. Moerkotte
Proc. 21. ICDE Conference, Tokyo, Japan, 2005
- On the Optimal Ordering of Maps and Selections under Factorization
T. Neumann,
S. Helmer,
G. Moerkotte
Proc. ICDE Conference, Tokyo, Japan, 2005
- Index Structures for Fuzzy Object-Oriented Database Systems.
S. Helmer
In Advances in Fuzzy Object-Oriented Databases (edited by Zongmin Ma), Idea Group Publishing, Hershey, 2004: 206-240, 2004
- An Efficient Framework for Order Optimization
T. Neumann,
G. Moerkotte
Proc. ICDE Conference, Boston, USA, 2004
- Nested Queries and Quantifiers in an Ordered Context
N. May,
G. Moerkotte,
S. Helmer
Proc. ICDE Conference, Boston, USA, 2004
- Evaluating Lock-based Protocols for Cooperation on XML Documents
Sven Helmer,
Carl-Christian Kanne,
G. Moerkotte
SIGMOD Record, 2004
- XQuery Processing in Natix with an Emphasis on Join Ordering
N. May,
S. Helmer,
C.-C. Kanne,
G. Moerkotte
First International Workshop on XQuery Implementation,
Experience and Perspectives (XIME-P 2004), 2004
- Engineering a New Abstraction Layer to Optimize the HEP Analysis Process
V. Amaral,
S. Helmer,
G. Moerkotte
IEEE, Transaction in Nuclear Sciences Journal, 2004
- PHEASANT: A PHysicist's EAsy ANalysis Tool
V. Amaral,
S. Helmer,
G. Moerkotte
Springer Verlag, Lecture Notes in Artificial Intelligence, 2004
- Timestamp-based Protocols for Synchronizing Access on XML Documents
S. Helmer,
C.-C. Kanne,
G. Moerkotte
Proc. DEXA Conference, Zaragoza, Spain, 2004
- A Combined Framework for Grouping and Order Optimization
T. Neumann,
G. Moerkotte
Proc. VLDB Conference, Toronto, Canada, 2004
- A Study of Four Index Structures for Set-Valued Attributes of Low Cardinality
S. Helmer,
G. Moerkotte
VLDB Journal, 2003
- Estimating the Output Cardinality of Partial Preaggregation with a Measure of Clusteredness
Sven Helmer,
T. Neumann,
G. Moerkotte
Proc. 29th Int. Conf. on Very Large Data Bases (VLDB), Berlin, Germany, 2003
- Three Cases for Query Decorrelation in XQuery
N. May,
S. Helmer,
G. Moerkotte
1st Int. XML Database Symposium (XSYM), Berlin, Germany, 2003
- Lock-based Protocols for Cooperation on XML Documents
S. Helmer,
C.-C. Kanne,
G. Moerkotte
Proc. 14th Int. Workshop on Database and Expert Systems Applications (at DEXA Conf.), Prague, 2003
- Quantifiers in XQuery
N. May,
S. Helmer,
G. Moerkotte
Proc. 4th Int. Conf. on Web Information Systems Engineering (WISE), Rome, Italy, 2003
- Nested Queries and Quantifiers in an Ordered Context
N. May,
G. Moerkotte,
S. Helmer
Technical Report, 2003
- A Robust Scheme for Multilevel Extendible Hashing
S. Helmer,
T. Neumann,
G. Moerkotte
Proc. 18th International Symposium on Computer and Information Sciences (ISCIS), Antalya, Turkey, 2003
- Evaluating Different Approaches for Indexing Fuzzy Sets
S. Helmer
Fuzzy Sets and Systems, 2003
- Book Review of: Recent issues on fuzzy databases
S. Helmer
Fuzzy Sets and Systems, 2003
- A Domain Specific Visual Query Language for the High Energy Physics Environment
V. Amaral,
S. Helmer,
G. Moerkotte
3rd Workshop on Domain\-Specific Modeling, An OOPSLA
2003 Workshop, Anaheim, CA, USA, 2003
- Indexstrukturen für XML
S. Helmer,
G. Moerkotte
2003
- Constructing Optimal Bushy Trees Possibly Containing Cross Products for Order-Preserving Joins is in P
G. Moerkotte
2003
- XML-Datenbanken und ihre Anwendung
S. Helmer,
C.-C. Kanne,
Guido Moerkotte
it - Information Technology, 2003
- A Visual Query Language for HEP Analysis
V. Amaral,
S. Helmer,
G. Moerkotte
IEEE Nuclear Sciences Symposium NSS, Portland, Oregon, USA, 2003
- Designing and Implementing a New Abstraction Layer to Optimize the HEP Analysis Process
V. Amaral,
S. Helmer,
G. Moerkotte
IEEE Nuclear Sciences Symposium NSS, Portland, Oregon, USA, 2003
- Anatomy of a native XML base management system
T. Fiebig,
S. Helmer,
C.-C. Kanne,
G. Moerkotte,
J. Neumann,
R. Schiele,
T. Westmann
VLDB Journal, 2002
- Incorporating XSL Processing into Database Engines
G. Moerkotte
Proc. 28th Int. Conf. on Very Large Data Bases (VLDB), Hong Kong, China, 2002
- Optimized Translation of XPath into Algebraic Expressions Parameterized by Programs Containing Navigational Primitives
S. Helmer,
C.-C. Kanne,
G. Moerkotte
Proc. 3rd Int. Conf. on Web Information Systems Engineering (WISE), Singapore, 2002
- Compiling Away Set Containment and Intersection Joins
S. Helmer,
G. Moerkotte
2002
- Natix: A Technology Overview
T. Fiebig,
S. Helmer,
C.-C. Kanne,
G. Moerkotte,
J. Neumann,
R. Schiele,
T. Westmann
Proc. Web, Web-Services, and Database Systems,
NODe 2002 Web and Database-Related Workshops, 2002
- Early Grouping Gets the Skew
S. Helmer,
T. Neumann,
G. Moerkotte
2002
- Exploiting Consistency Maintenance for Planning
G. Moerkotte,
H. Müller
1993
- Nested Queries in Object Bases
S. Cluet,
G. Moerkotte
1993
- Optimizing Join Expressions (Extended Abstract)
A. Kemper,
G. Moerkotte,
M. Steinbrunn
1993
- Partition-Based Clustering in Object Bases: From Theory to Practice
C. Gerlhof,
A. Kemper,
C. Kilger,
G. Moerkotte
1993
- Towards More Flexible Schema Management in Object-Bases
G. Moerkotte,
A. Zachmann
1993
- Autonomous Objects: A Natural Model for Complex Applications (Conference version)
A. Kemper,
G. Moerkotte,
H.-D. Walter
1993
- A Blackboard Architecture for Query Optimization in Object Bases
A. Kemper,
G. Moerkotte,
K. Peithner
1993
- Database Design with User-Definable Modelling Concepts
P.C. Lockemann,
G. Moerkotte,
A. Neufeld,
K. Radermacher,
N. Runge
1993
- Basiskonzepte objektorientierter Datenbanksysteme
A. Kemper,
G. Moerkotte
1993
- Generating Consistent Test Data for a Variable Set of General Consistency Constraints
A. Neufeld,
G. Moerkotte,
P.C. Lockemann
1993
- Controlled Redundancy in Object Bases: Optimization Methods for Organizational Data Modelling
A. Kemper,
G. Moerkotte,
M. Steinbrunn
1993
- Das GOM-Handbuch: Objektorientierte Programmierung und Datenmodellierung
A. Kemper,
C. Kilger,
G. Moerkotte,
H.-D. Walter,
A. Zachmann
1993
- Optimizing Join Orders
M. Steinbrunn,
G. Moerkotte,
A. Kemper
1993
- Optimizing Disjunctive Queries in Object Bases
A. Kemper,
G. Moerkotte,
K. Peithner,
M. Steinbrunn
1993
- Physical Object Management
A. Kemper,
G. Moerkotte
1993
