 | 2009 |
|---|
| 36 |       | Denise Y. Arnold,
Sven Helmer,
Rodolfo Velásquez Arando:
Towards Building a Knowledge Base for Research on Andean Weaving.
BNCOD 2009: 180-188 |
| 35 | | Tadeusz Litak,
Sven Helmer:
On the Termination Problem for Declarative XML Message Processing.
DEXA 2009: 83-97 |
| 34 | | Carlos D. Barranco,
Sven Helmer:
Increasing the Performance of Fuzzy Retrieval Using Impact Ordering.
IFSA/EUSFLAT Conf. 2009: 957-962 |
| 2008 |
|---|
| 33 | | Alexandre Guitton,
Niki Trigoni,
Sven Helmer:
Fault-Tolerant Compression Algorithms for Delay-Sensitive Sensor Networks with Unreliable Links.
DCOSS 2008: 190-203 |
| 2007 |
|---|
| 32 | | Sven Helmer,
Robin Aly,
Thomas Neumann,
Guido Moerkotte:
Indexing Set-Valued Attributes with a Multi-level Extendible Hashing Scheme.
DEXA 2007: 98-108 |
| 31 | | Sven Helmer:
An Interval-Based Index Structure for Structure Elucidation in Chemical Databases.
IFSA (1) 2007: 625-634 |
| 30 | | Sven Helmer:
Measuring the Structural Similarity of Semistructured Documents Using Entropy.
VLDB 2007: 1022-1032 |
| 2006 |
|---|
| 29 | | Thomas Neumann,
Sven Helmer,
Guido Moerkotte:
On the Optimal Ordering of Maps, Selections, and Joins Under Factorization.
BNCOD 2006: 115-126 |
| 28 | | Matthias Brantner,
Carl-Christian Kanne,
Guido Moerkotte,
Sven Helmer:
Algebraic Optimization of Nested XPath Expressions.
ICDE 2006: 128 |
| 27 | | Matthias Brantner,
Sven Helmer,
Carl-Christian Kanne,
Guido Moerkotte:
Kappa-Join: Efficient Execution of Existential Quantification in XML Query Languages.
XSym 2006: 1-15 |
| 26 | | Norman May,
Sven Helmer,
Guido Moerkotte:
Strategies for query unnesting in XML databases.
ACM Trans. Database Syst. 31(3): 968-1013 (2006) |
| 2005 |
|---|
| 25 | | Aleksei Pavlov,
Sven Helmer,
Guido Moerkotte:
A Model-Based Monitoring and Diagnosis System for a Space-Based Astrometry Mission.
DEXA 2005: 920-929 |
| 24 | | Thomas Neumann,
Sven Helmer,
Guido Moerkotte:
On the Optimal Ordering of Maps and Selections under Factorization.
ICDE 2005: 490-501 |
| 23 | | Matthias Brantner,
Sven Helmer,
Carl-Christian Kanne,
Guido Moerkotte:
Full-fledged Algebraic XPath Processing in Natix.
ICDE 2005: 705-716 |
| 22 | | Vasco Amaral,
Sven Helmer,
Guido Moerkotte:
Formally Specifying the Syntax and Semantics of a Visual Query Language for the Domain of High Energy Physics Data Analysis.
VL/HCC 2005: 251-258 |
| 2004 |
|---|
| 21 | | Sven Helmer,
Carl-Christian Kanne,
Guido Moerkotte:
Timestamp-Based Protocols for Synchronizing Access on XML Documents.
DEXA 2004: 591-600 |
| 20 | | Vasco Amaral,
Sven Helmer,
Guido Moerkotte:
PHEASANT: A PHysicist's EAsy ANalysis Tool.
FQAS 2004: 229-242 |
| 19 | | Norman May,
Sven Helmer,
Guido Moerkotte:
Nested Queries and Quantifiers in an Ordered Context.
ICDE 2004: 239-250 |
| 18 |  | Norman May,
Sven Helmer,
Carl-Christian Kanne,
Guido Moerkotte:
XQuery Processing in Natix with an Emphasis on Join Ordering.
XIME-P 2004: 49-54 |
| 17 | | Sven Helmer,
Carl-Christian Kanne,
Guido Moerkotte:
Evaluating lock-based protocols for cooperation on XML documents.
SIGMOD Record 33(1): 58-63 (2004) |
| 2003 |
|---|
| 16 | | Sven Helmer,
Carl-Christian Kanne,
Guido Moerkotte:
Lock-based Protocols for Cooperation on XML Documents.
DEXA Workshops 2003: 230-234 |
| 15 | | Sven Helmer,
Thomas Neumann,
Guido Moerkotte:
A Robust Scheme for Multilevel Extendible Hashing.
ISCIS 2003: 220-227 |
| 14 | | Sven Helmer,
Thomas Neumann,
Guido Moerkotte:
Estimating the Output Cardinality of Partial Preaggregation with a Measure of Clusteredness.
VLDB 2003: 656-667 |
| 13 | | Norman May,
Sven Helmer,
Guido Moerkotte:
Quantifiers in XQuery.
WISE 2003: 313-316 |
| 12 | | Norman May,
Sven Helmer,
Guido Moerkotte:
Three Cases for Query Decorrelation in XQuery.
Xsym 2003: 70-84 |
| 11 | | Sven Helmer,
Guido Moerkotte:
Indexstrukturen für XML.
Web & Datenbanken 2003: 217-250 |
| 10 | | Sven Helmer:
Evaluating different approaches for indexing fuzzy sets.
Fuzzy Sets and Systems 140(1): 167-182 (2003) |
| 9 | | Sven Helmer:
Book Review: "Recent issues on fuzzy databases" by G. Bordogna and G. Pasi (Eds.); Physica Verlag, Wurzburg, 2000, 236pp., ISBN: 3-7908-1319-2.
Fuzzy Sets and Systems 140(1): 229-230 (2003) |
| 8 | | Sven Helmer,
Guido Moerkotte:
A performance study of four index structures for set-valued attributes of low cardinality.
VLDB J. 12(3): 244-261 (2003) |
| 7 | | Sven Helmer,
Carl-Christian Kanne,
Guido Moerkotte:
XML-Datenbanksysteme und ihre Anwendung.
it - Information Technology 45(3): 137-142 (2003) |
| 2002 |
|---|
| 6 | | Sven Helmer,
Carl-Christian Kanne,
Guido Moerkotte:
Optimized Translation of XPath into Algebraic Expressions Parameterized by Programs Containing Navigational Primitives.
WISE 2002: 215-224 |
| 5 | | Thorsten Fiebig,
Sven Helmer,
Carl-Christian Kanne,
Guido Moerkotte,
Julia Neumann,
Robert Schiele,
Till Westmann:
Natix: A Technology Overview.
Web, Web-Services, and Database Systems 2002: 12-33 |
| 4 | | Thorsten Fiebig,
Sven Helmer,
Carl-Christian Kanne,
Guido Moerkotte,
Julia Neumann,
Robert Schiele,
Till Westmann:
Anatomy of a native XML base management system.
VLDB J. 11(4): 292-314 (2002) |
| 2000 |
|---|
| 3 | | Till Westmann,
Donald Kossmann,
Sven Helmer,
Guido Moerkotte:
The Implementation and Performance of Compressed Databases.
SIGMOD Record 29(3): 55-67 (2000) |
| 1998 |
|---|
| 2 | | Sven Helmer,
Till Westmann,
Guido Moerkotte:
Diag-Join: An Opportunistic Join Algorithm for 1:N Relationships.
VLDB 1998: 98-109 |
| 1997 |
|---|
| 1 | | Sven Helmer,
Guido Moerkotte:
Evaluation of Main Memory Join Algorithms for Joins with Set Comparison Join Predicates.
VLDB 1997: 386-395 |
