588 search results - page 58 / 118 » Positive higher-order queries |
130
click to vote
ESWS
2008
Springer
15 years 6 months ago
2008
Springer
A fundamental problem related to graph structured databases is searching for substructures. One issue with respect to optimizing such searches is the ability to estimate the freque...
157
click to vote
WM
2003
15 years 5 months ago
2003
: We present an approach to using ontologies as interlingua in cross-language information retrieval in the medical domain. Our approach is based on using the Unified Medical Langu...
173
click to vote
SPIESR
1997
15 years 5 months ago
1997
The development of increasingly complex multimedia applications calls for new methodologies for the organization and retrieval of still images and video sequences. Query and retri...
148
click to vote
IS
2008
15 years 4 months ago
2008
XQuery is a powerful XML query language with many features and syntactic constructs. For many common queries we do not need all the expressive power of XQuery. We investigate the ...
133
click to vote
CP
2010
Springer
15 years 3 months ago
2010
Springer
We study the expressibility problem: given a finite constraint language Γ on a finite domain and another relation R, can Γ express R? We prove, by an explicit family of example...