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SEMWEB
2009
Springer
14 years 5 months ago
Towards Integrity Constraints in OWL
In many data-centric applications, it is desirable to use OWL as an expressive schema language with which one expresses constraints that must be satisfied by instance data. Howeve...
Evren Sirin, Jiao Tao
COMPGEOM
2009
ACM
14 years 5 months ago
Zigzag persistent homology and real-valued functions
We study the problem of computing zigzag persistence of a sequence of homology groups and study a particular sequence derived from the levelsets of a real-valued function on a top...
Gunnar Carlsson, Vin de Silva, Dmitriy Morozov
SIGIR
2009
ACM
14 years 5 months ago
Link analysis for private weighted graphs
Link analysis methods have been used successfully for knowledge discovery from the link structure of mutually linking entities. Existing link analysis methods have been inherently...
Jun Sakuma, Shigenobu Kobayashi
HICSS
2008
IEEE
151views Biometrics» more  HICSS 2008»
14 years 4 months ago
Venice, California and World of Warcraft: Persistence and Ephemerality in Playful Spaces
Persistent digital media extend content beyond immediate ephemeral interactions and conversations. Systems such as email, instant messaging, digital kiosks, social networking site...
Silvia Lindtner, Bonnie A. Nardi
ICALT
2008
IEEE
14 years 4 months ago
LEMAT: A Project for Innovation in Teaching Mathematics
“Lemat” is an acronym for Libro Electrónico de Matemáticas, which means Electronic Book of Mathematics. It is a project developed by a group of teachers at secondary school ...
Beatriz Porras, Jose A. Cordon, Juan Manuel Olazab...