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CCS
2010
ACM
14 years 2 months ago
A logic for authorization provenance
In distributed environments, statements from a number of principals, besides the central trusted party, may influence the derivations of authorization decisions. However, existin...
Jinwei Hu, Yan Zhang, Ruixuan Li, Zhengding Lu
CLEF
2008
Springer
13 years 9 months ago
Overview of the WikipediaMM Task at ImageCLEF 2008
The wikipediaMM task provides a testbed for the system-oriented evaluation of ad-hoc retrieval from a collection of Wikipedia images. It became a part of the ImageCLEF evaluation ...
Theodora Tsikrika, Jana Kludas
SACMAT
2005
ACM
14 years 1 months ago
Relevancy based access control of versioned XML documents
Integration of version and access control of XML documents has the benefit of regulating access to rapidly growing archives of XML documents. Versioned XML documents provide us w...
Mizuho Iwaihara, Somchai Chatvichienchai, Chutipor...
AAAI
1994
13 years 9 months ago
Corpus-Driven Knowledge Acquisition for Discourse Analysis
The availability of large on-line text corpora provides a natural and promising bridge between the worlds of natural language processing (NLP) and machine learning (ML). In recent...
Stephen Soderland, Wendy G. Lehnert
CIDR
2003
125views Algorithms» more  CIDR 2003»
13 years 9 months ago
Crossing the Structure Chasm
It has frequently been observed that most of the world’s data lies outside database systems. The reason is that database systems focus on structured data, leaving the unstructur...
Alon Y. Halevy, Oren Etzioni, AnHai Doan, Zachary ...