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ICIP
2003
IEEE
16 years 7 months ago
An ontology approach to object-based image retrieval
In this paper, an image retrieval methodology suited for search in large collections of heterogeneous images is presented. The proposed approach employs a fully unsupervised segme...
Vasileios Mezaris, Ioannis Kompatsiaris, Michael G...
SDM
2009
SIAM
184views Data Mining» more  SDM 2009»
16 years 3 months ago
DensEst: Density Estimation for Data Mining in High Dimensional Spaces.
Subspace clustering and frequent itemset mining via “stepby-step” algorithms that search the subspace/pattern lattice in a top-down or bottom-up fashion do not scale to large ...
Emmanuel Müller, Ira Assent, Ralph Krieger, S...
INFOCOM
2008
IEEE
16 years 12 days ago
Iso-Contour Queries and Gradient Descent with Guaranteed Delivery in Sensor Networks
—We study the problem of data-driven routing and navigation in a distributed sensor network over a continuous scalar field. Specifically, we address the problem of searching fo...
Rik Sarkar, Xianjin Zhu, Jie Gao, Leonidas J. Guib...
PIMRC
2008
IEEE
16 years 11 days ago
A joint routing-MAC model for cellular-relaying networks
—We present an iterative joint scheduling-routing algorithm for characterizing the long-term performance of a cellular-relaying network. The physical layer model is based on idea...
Bogdan Timus, Pablo Soldati
ACNS
2008
Springer
88views Cryptology» more  ACNS 2008»
16 years 11 days ago
On the Effectiveness of Internal Patching Against File-Sharing Worms
File-sharing worms have been terrorizing Peer-to-peer (P2P) systems in recent years. Existing defenses relying on users’ individual recoveries or limiting users’ file-sharing ...
Liang Xie, Hui Song, Sencun Zhu