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TVLSI
2010
12 years 11 months ago
Exploration of Heterogeneous FPGAs for Mapping Linear Projection Designs
In many applications, a reduction of the amount of the original data or a representation of the original data by a small set of variables is often required. Among many techniques, ...
Christos-Savvas Bouganis, Iosifina Pournara, Peter...
TVCG
2010
186views more  TVCG 2010»
13 years 2 months ago
An Information-Theoretic Framework for Flow Visualization
—The process of visualization can be seen as a visual communication channel where the input to the channel is the raw data, and the output is the result of a visualization algori...
Lijie Xu, Teng-Yok Lee, Han-Wei Shen
EOR
2002
92views more  EOR 2002»
13 years 4 months ago
Data envelopment analysis with imprecise data
In original data envelopment analysis (DEA) models, inputs and outputs are measured by exact values on a ratio scale. Cooper et al. [Management Science, 45 (1999) 597
Dimitris K. Despotis, Yannis G. Smirlis
TVCG
2008
102views more  TVCG 2008»
13 years 4 months ago
A Statistical Approach to Volume Data Quality Assessment
Quality assessment plays a crucial role in data analysis. In this paper, we present a reduced-reference approach to volume data quality assessment. Our algorithm extracts importan...
Chaoli Wang, Kwan-Liu Ma
TNN
2008
128views more  TNN 2008»
13 years 4 months ago
Nonnegative Matrix Factorization in Polynomial Feature Space
Abstract--Plenty of methods have been proposed in order to discover latent variables (features) in data sets. Such approaches include the principal component analysis (PCA), indepe...
Ioan Buciu, Nikos Nikolaidis, Ioannis Pitas
TDP
2008
67views more  TDP 2008»
13 years 4 months ago
Generating Sufficiency-based Non-Synthetic Perturbed Data
The mean vector and covariance matrix are sufficient statistics when the un derlying distribution is multivariate normal. Many type of statistical analyses used in practice rely on...
Krishnamurty Muralidhar, Rathindra Sarathy
CAGD
2010
102views more  CAGD 2010»
13 years 4 months ago
Nonnegativity preserving macro-element interpolation of scattered data
Abstract. Nonnegative bivariate interpolants to scattered data are constructed using some C1 macro-element spline spaces. The methods are local, and rely on adjusting gradients at ...
Larry L. Schumaker, Hendrik Speleers
ICIP
2007
IEEE
13 years 8 months ago
Unsupervised Nonlinear Manifold Learning
This communication deals with data reduction and regression. A set of high dimensional data (e.g., images) usually has only a few degrees of freedom with corresponding variables t...
Matthieu Brucher, Christian Heinrich, Fabrice Heit...
ICDM
2007
IEEE
138views Data Mining» more  ICDM 2007»
13 years 8 months ago
Preserving Privacy through Data Generation
Many databases will not or can not be disclosed without strong guarantees that no sensitive information can be extracted. To address this concern several data perturbation techniq...
Jilles Vreeken, Matthijs van Leeuwen, Arno Siebes
SOFTVIS
2006
ACM
13 years 10 months ago
Mondrian: an agile information visualization framework
Data visualization is the process of representing data as pictures to support reasoning about the underlying data. For the interpretation to be as easy as possible, we need to be ...
Michael Meyer, Tudor Gîrba, Mircea Lungu