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DOCENG
2006
ACM
15 years 12 months 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
MM
2006
ACM
197views Multimedia» more  MM 2006»
15 years 12 months ago
Virtual observers in a mobile surveillance system
Conventional wide-area video surveillance systems use a network of fixed cameras positioned close to locations of interest. We describe an alternative and flexible approach to w...
Stewart Greenhill, Svetha Venkatesh
CCS
2005
ACM
15 years 11 months ago
Obfuscated databases and group privacy
We investigate whether it is possible to encrypt a database and then give it away in such a form that users can still access it, but only in a restricted way. In contrast to conve...
Arvind Narayanan, Vitaly Shmatikov
CVPR
2004
IEEE
16 years 8 months ago
Hidden Semantic Concept Discovery in Region Based Image Retrieval
This paper addresses Content Based Image Retrieval (CBIR), focusing on developing a hidden semantic concept discovery methodology to address effective semanticsintensive image ret...
Ruofei Zhang, Zhongfei (Mark) Zhang
WWW
2004
ACM
16 years 6 months ago
HPG: a tool for presentation generation in WIS
Web Information Systems (WIS) support the process of retrieving information from sources on the Web and of presenting them as a hypermedia presentation. Most WIS design ogies focu...
Bas Rutten, Peter Barna, Flavius Frasincar, Geert-...