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CVPR
2009
IEEE
16 years 12 months ago
Vocabulary Hierarchy Optimization for Effective and Transferable Retrieval
Scalable image retrieval systems usually involve hierarchical quantization of local image descriptors, which produces a visual vocabulary for inverted indexing of images. Although ...
Rongrong Ji (Harbin Institute of Technology), Xing...
VLDB
2004
ACM
124views Database» more  VLDB 2004»
15 years 10 months ago
Containment of Nested XML Queries
Query containment is the most fundamental relationship between a pair of database queries: a query Q is said to be contained in a query Q if the answer for Q is always a subset of...
Xin Dong, Alon Y. Halevy, Igor Tatarinov
WEBDB
2000
Springer
136views Database» more  WEBDB 2000»
15 years 8 months ago
An Optimization Technique for Answering Regular Path Queries
Rewriting queries using views is a powerful technique that has applications in data integration, data warehousing and query optimization. Query rewriting in relational databases i...
Gösta Grahne, Alex Thomo
LREC
2008
114views Education» more  LREC 2008»
15 years 6 months ago
UFRA: a UIMA-based Approach to Federated Language Resource Architecture
In this paper we address the issue of developing an interoperable infrastructure for language resources and technologies. In our approach, called UFRA, we extend the Federate Data...
Riccardo Del Gratta, Roberto Bartolini, Tommaso Ca...
AVSS
2005
IEEE
15 years 10 months ago
Scene modelling using an adaptive mixture of Gaussians in colour and space
We present an integrated pixel segmentation and region tracking algorithm, designed for indoor environments. Visual monitoring systems often use frame differencing techniques to i...
Patrick Dickinson, Andrew Hunter