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» A space efficient algorithm for group structure computation
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SODA
2004
ACM
124views Algorithms» more  SODA 2004»
15 years 6 months ago
On contract-and-refine transformations between phylogenetic trees
The inference of evolutionary trees using approaches which attempt to solve the maximum parsimony (MP) and maximum likelihood (ML) optimization problems is a standard part of much...
Ganeshkumar Ganapathy, Vijaya Ramachandran, Tandy ...
123
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ICPR
2002
IEEE
16 years 5 months ago
A Note on Principal Point Estimability
We provide elementary geometric arguments to show that the principal point of cameras with small to moderate field of view cannot be reliably estimated from natural, noisy images ...
Alberto Ruiz, Ginés García-Mateos, P...
IJEB
2007
127views more  IJEB 2007»
15 years 4 months ago
Factors mediating the routinisation of e-learning within a traditional university education environment
Technology-enhanced or Computer Aided Learning (e-learning) can be institutionally integrated and supported by learning management systems or Virtual Learning Environments (VLEs) ...
Shafqat Hameed, John Mellor, Atta Badii, Niyati Pa...
CORR
2010
Springer
249views Education» more  CORR 2010»
15 years 4 months ago
Lower Bounds on Near Neighbor Search via Metric Expansion
In this paper we show how the complexity of performing nearest neighbor (NNS) search on a metric space is related to the expansion of the metric space. Given a metric space we loo...
Rina Panigrahy, Kunal Talwar, Udi Wieder
MM
2005
ACM
122views Multimedia» more  MM 2005»
15 years 10 months ago
Image clustering with tensor representation
We consider the problem of image representation and clustering. Traditionally, an n1 × n2 image is represented by a vector in the Euclidean space Rn1×n2 . Some learning algorith...
Xiaofei He, Deng Cai, Haifeng Liu, Jiawei Han