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PAMI
2007
148views more  PAMI 2007»
14 years 11 months ago
Orthogonal Neighborhood Preserving Projections: A Projection-Based Dimensionality Reduction Technique
This paper considers the problem of dimensionality reduction by orthogonal projection techniques. The main feature of the proposed techniques is that they attempt to preserve both...
Effrosini Kokiopoulou, Yousef Saad
CIKM
2010
Springer
14 years 10 months ago
Hypergraph-based multilevel matrix approximation for text information retrieval
In Latent Semantic Indexing (LSI), a collection of documents is often pre-processed to form a sparse term-document matrix, followed by a computation of a low-rank approximation to...
Haw-ren Fang, Yousef Saad
CORR
2010
Springer
130views Education» more  CORR 2010»
14 years 10 months ago
Fractional Repetition Codes for Repair in Distributed Storage Systems
Abstract—We introduce a new class of exact MinimumBandwidth Regenerating (MBR) codes for distributed storage systems, characterized by a low-complexity uncoded repair process tha...
Salim Y. El Rouayheb, Kannan Ramchandran
FUIN
2010
112views more  FUIN 2010»
14 years 10 months ago
An Empirical Study of QBF Encodings: from Treewidth Estimation to Useful Preprocessing
From an empirical point of view, the hardness of quantified Boolean formulas (QBFs), can be characterized by the (in)ability of current state-of-the-art QBF solvers to decide abo...
Luca Pulina, Armando Tacchella
GI
2010
Springer
14 years 10 months ago
Ontology-based Registration of Entities for Data Integration in Large Biomedical Research Projects
Abstract: Large biomedical projects often include workflows running across institutional borders. In these workflows, data describing biomedical entities, such as patients, bio-m...
Toralf Kirsten, Alexander Kiel
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