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TMI
2002
88views more  TMI 2002»
14 years 11 months ago
What is the best similarity measure for motion correction in fMRI time series?
It has been shown that the difference of squares cost function used by standard realignment packages (SPM and AIR) can lead to the detection of spurious activations, because the mo...
Luis Freire, Alexis Roche, Jean-Francois Mangin
LREC
2008
110views Education» more  LREC 2008»
15 years 1 months ago
Evaluating Evaluation Metrics for Ontology-Based Applications: Infinite Reflection
In this paper, we discuss methods of measuring the performance of ontology-based information extraction systems. We focus particularly on the Balanced Distance Metric (BDM), a new...
Diana Maynard, Wim Peters, Yaoyong Li
ICMCS
2008
IEEE
187views Multimedia» more  ICMCS 2008»
15 years 6 months ago
Accommodating sample size effect on similarity measures in speaker clustering
We investigate the symmetric Kullback-Leibler (KL2) distance in speaker clustering and its unreported effects for differently-sized feature matrices. Speaker data is represented a...
Alexander Haubold, John R. Kender
IJON
2002
88views more  IJON 2002»
14 years 11 months ago
Curved feature metrics in models of visual cortex
We study the relation between maps of a high-dimensional stimulus manifold onto an essentially two-dimensional cortical area and low-dimensional maps of stimulus features such as ...
Norbert Michael Mayer, J. Michael Herrmann, Theo G...
SDM
2007
SIAM
201views Data Mining» more  SDM 2007»
15 years 1 months ago
Fast Best-Match Shape Searching in Rotation Invariant Metric Spaces
Object recognition and content-based image retrieval systems rely heavily on the accurate and efficient identification of shapes. A fundamental requirement in the shape analysis ...
Dragomir Yankov, Eamonn J. Keogh, Li Wei, Xiaopeng...