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STACS
2009
Springer
16 years 1 months ago
Strong Completeness of Coalgebraic Modal Logics
ABSTRACT. Canonical models are of central importance in modal logic, in particular as they witness strong completeness and hence compactness. While the canonical model construction...
Lutz Schröder, Dirk Pattinson
CSE
2009
IEEE
16 years 1 months ago
A Hybrid Enforcement Model for Group-centric Secure Information Sharing
—Group-Centric Secure Information Sharing (g-SIS) is motivated by the need to dynamically share information amongst a set of authorized users for a specific purpose. Authorized ...
Ram Krishnan, Ravi S. Sandhu
CSE
2009
IEEE
16 years 1 months ago
Socio-semantic Dynamics in a Blog Network
—The blogosphere can be construed as a knowledge network made of bloggers who are interacting through a social network to share, exchange or produce information. We claim that th...
Jean-Philippe Cointet, Camille Roth
CSIE
2009
IEEE
16 years 1 months ago
Integration of a Concept Map Generator and a Knowledge-Portal-Based E-learning System
Knowledge management (KM) is the research field aimed to create, organize, and store explicit knowledge for easy access and manipulation, whereas e-learning is concerned with del...
Jyh-Da Wei, Tai-Yu Chen, Tsai-Yeh Tung, D. T. Lee
FOCS
2009
IEEE
16 years 1 months ago
Agnostic Learning of Monomials by Halfspaces Is Hard
— We prove the following strong hardness result for learning: Given a distribution on labeled examples from the hypercube such that there exists a monomial (or conjunction) consi...
Vitaly Feldman, Venkatesan Guruswami, Prasad Ragha...