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ICALP
2007
Springer
14 years 2 months ago
Model Theory Makes Formulas Large
Gaifman’s locality theorem states that every first-order sentence is equivalent to a local sentence. We show that there is no elementary bound on the length of the local sentenc...
Anuj Dawar, Martin Grohe, Stephan Kreutzer, Nicole...
SAC
2006
ACM
14 years 1 months ago
MTree: an XML XPath graph index
This paper introduces the MTree index algorithm, a special purpose XML XPath index designed to meet the needs of the hierarchical XPath query language. With the increasing importa...
P. Mark Pettovello, Farshad Fotouhi
WIDM
2005
ACM
14 years 1 months ago
Exploiting native XML indexing techniques for XML retrieval in relational database systems
In XML retrieval, two distinct approaches have been established and pursued without much cross-fertilization taking place so far. On the one hand, native XML databases tailored to...
Felix Weigel, Klaus U. Schulz, Holger Meuss
MMDB
2004
ACM
151views Multimedia» more  MMDB 2004»
14 years 1 months ago
Indexing of variable length multi-attribute motion data
Haptic data such as 3D motion capture data and sign language animation data are new forms of multimedia data. The motion data is multi-attribute, and indexing of multiattribute da...
Chuanjun Li, Gaurav N. Pradhan, Si-Qing Zheng, B. ...
VRST
2003
ACM
14 years 1 months ago
Time-critical collision detection using an average-case approach
We present a novel, generic framework and algorithm for hierarchical collision detection, which allows an application to balance speed and quality of the collision detection. We p...
Jan Klein, Gabriel Zachmann