:: Norman May

E-Mail:	norman @ pi3.informatik.uni-mannheim.de
Fingerprint:	7839 EF9F 53A4 8B4E 6E41 1B68 00B2 E149 2790 9AF3
Homepage:	http://www.geocities.com/maynorman

In my thesis I have studied the optimization and efficient evaluation of XQuery queries. These results are part of the Natix-Projects. Now, I have joined SAP Research.

Lectures

FSS 2007: Database Systems 1
HWS 2006/07: Query Optimization
SS 2006: Database Systems 1
WS 2005/06: Query Optimization
SS 2005: Transaction Systems
WS 2004/05: Algorithms and Datastructures
SS 2004: Database Systems 1
WS 2003/04: Praktische Informatik 1
SS 2003: Programmierpraktikum
Information: A Guide for Tutors; Games and Methods for Workshops, ...

Research

Publications

2007

N. May, G. Moerkotte; Efficient XQuery Evaluation of Grouping Conditions with Duplicate Removals; Proc. of the Fifth International XML Database Symposium (XSym), Vienna, Austria; paper
M. Brantner, N. May, G. Moerkotte; Unnesting Scalar SQL Queries in the Presence of Disjunction; ICDE 2007; paper

2006

N. May and S. Helmer and G. Moerkotte; Strategies for Query Unnesting in XML Databases; ACM Transactions on Database Systems, 31(3):968-1013; PDF, PS
N. May, M. Brantner, A. Böhm, C-C. Kanne and G. Moerkotte; Index vs. Navigation in XPath Evaluation; Proc. Workshop Fourth International XML Database Symposium, Seoul, Korea; paper
M. Brantner, N. May, G. Moerkotte; Unnesting SQL Queries in the Presence of Disjunction; Technical Report
A. Böhm, M. Brantner, C.-C. Kanne, N. May, G. Moerkotte; Natix Visual Interfaces; Proc. 10. Int. Conf. on Extending Database Technology (EDBT 2006), Munich paper

2005

Norman May, Guido Moerkotte; Main-Memory Implementations for Binary Grouping; 3rd Int. XML Database Symposium (XSYM), Trondheim, August 2005: ; 162-176 paper
Norman May, Guido Moerkotte; Main-Memory Implementations for Binary Grouping; technical report

2004

Norman May, Sven Helmer, Guido Moerkotte; Nested Queries and Quantifiers in an Ordered Context; ICDE 2004; PDF, PS
Norman May, Sven Helmer, Carl Christian Kanne, and Guido Moerkotte; XQuery Processing in Natix with an Emphasis on Join Ordering; XIME-P 2004; PDF, PS

2003

Norman May, Sven Helmer, Guido Moerkotte; Three Cases for Query Decorelation in XQuery; 1st Int. XML Database Symposium (XSYM), Berlin, September 2003: 70-84; PDF, PS
Norman May, Sven Helmer, Guido Moerkotte; Quantifiers in XQuery; Proc. 4th WISE Conference 2003; Rome; 313-316; PDF, PS
Norman May, Sven Helmer, Guido Moerkotte; Nested Queries and Quantifiers in an Ordered Context; Technical Report; PDF, PS

Research Projects - XML and semistructured data

University of Pennsylvania
Timber Project @ University of Michigan
XPress-Project (Quilt) @ UCLA
University of Toronto - TOX
Niagra Query Engine @ University of Wisconsin
Lore-Project @ Stanford University

XML-Repositories

Natix (data ex machina)
Galax
XIndice @ Apache
Infonyte
a list of Implementations by Ronald Bourret
list of XML files

XML Specification and Benchmarks

XML-Applicationens

XBRL - Extensible Business Reporting Language; Specification, XML-Reports
Semantic Web: RDF, OWL
- Semantic Web @ W3C
- RDF example data
- Tools: SESAME, Jena
- Sample Data:the Gene Ontology, Friend Of A Friend

Private

my personal homepage