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» Randomized Algorithms and Complexity Theory
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284
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GIS
2005
ACM
16 years 7 months ago
Use of rational numbers in the design of robust geometric primitives for three-dimensional spatial database systems
A necessary step in the implementation of three-dimensional spatial data types for spatial database systems and GIS is the development of robust geometric primitives. The authors ...
Brian E. Weinrich, Markus Schneider
POPL
2004
ACM
16 years 6 months ago
Parsing expression grammars: a recognition-based syntactic foundation
For decades we have been using Chomsky's generative system of grammars, particularly context-free grammars (CFGs) and regular expressions (REs), to express the syntax of prog...
Bryan Ford
P2P
2008
IEEE
102views Communications» more  P2P 2008»
16 years 16 days ago
Free-Riding, Fairness, and Firewalls in P2P File-Sharing
Peer-to-peer file-sharing networks depend on peers uploading data to each other. Some peers, called free-riders, will not upload data unless there is an incentive to do so. Algor...
Jacob Jan-David Mol, Johan A. Pouwelse, Dick H. J....
174
Voted
DOCENG
2006
ACM
16 years 3 days ago
Comparing XML path expressions
XPath is the standard declarative language for navigating XML data and returning a set of matching nodes. In the context of XSLT/XQuery analysis, query optimization, and XML type ...
Pierre Genevès, Nabil Layaïda
171
Voted
SPAA
2006
ACM
16 years 3 days ago
On space-stretch trade-offs: lower bounds
One of the fundamental trade-offs in compact routing schemes is between the space used to store the routing table on each node and the stretch factor of the routing scheme – th...
Ittai Abraham, Cyril Gavoille, Dahlia Malkhi