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ICMCS
2006
IEEE
110views Multimedia» more  ICMCS 2006»
15 years 7 months ago
Image Replica Detection using R-Trees and Linear Discriminant Analysis
In this paper a novel system for image replica detection is presented. The system uses color-based descriptors in order to extract robust features for image representation. These ...
Spyros Nikolopoulos, Stefanos Zafeiriou, Panagioti...
WIDM
2004
ACM
15 years 7 months ago
Specialisation dynamics in federated web search
Organising large-scale Web information retrieval systems into hierarchies of topic-specific search resources can improve both the quality of results and the efficient use of com...
Rinat Khoussainov, Nicholas Kushmerick
98
Voted
CIDR
2007
155views Algorithms» more  CIDR 2007»
15 years 3 months ago
Object-level Vertical Search
Current web search engines essentially conduct document-level ranking and retrieval. However, structured information about realworld objects embedded in static webpages and online...
Zaiqing Nie, Ji-Rong Wen, Wei-Ying Ma
MM
2006
ACM
197views Multimedia» more  MM 2006»
15 years 7 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
123
Voted
STOC
2009
ACM
133views Algorithms» more  STOC 2009»
16 years 2 months ago
New direct-product testers and 2-query PCPs
The "direct product code" of a function f gives its values on all k-tuples (f(x1), . . . , f(xk)). This basic construct underlies "hardness amplification" in c...
Russell Impagliazzo, Valentine Kabanets, Avi Wigde...