Search results for key=Squ1998a : 1 match found.

Technical Reports

1998

@techreport{Squ1998a,
	vgclass =	{report},
	vgproject =	{viper,cbir},
	author =	{David McG. Squire},
	title =	{Learning a similarity-based distance measure for image
	database organization from human partitionings of an image set},
	number =	{98.03},
	institution =	{Computer Vision Group,  Computing Centre, University
	of Geneva},
	address =	{rue G\'{e}n\'{e}ral Dufour, 24, CH-1211 Gen\`{e}ve,
	Switzerland},
	month =	{April},
	year =	{1998},
	url =	{/publications/postscript/1998/VGTR98.03_Squire.pdf},
	url1 =	{/publications/postscript/1998/VGTR98.03_Squire.ps.gz},
	abstract =	{In this paper we employ human judgments of image
	similarity to improve the organization of an image database. We first
	derive a statistic, $\kappa_B$ which measures the agreement between two
	partitionings of an image set. $\kappa_B$ is used to assess agreement
	both amongst and between human and machine partitionings. This provides
	a rigorous means of choosing between competing image database
	organization systems, and of assessing the performance of such systems
	with respect to human judgments.

	Human partitionings of an image set are used to define an similarity
	value based on the frequency with which images are judged to be
	similar. When this measure is used to partition an image set using a
	clustering technique, the resultant partitioning agrees better with
	human partitionings than any of the feature-space-based techniques
	investigated.

	Finally, we investigate the use multilayer perceptrons and a
	\emph{Distance Learning Network} to learn a mapping from feature space
	to this perceptual similarity space. The Distance Learning Network is
	shown to learn a mapping which results in partitionings in excellent
	agreement with those produced by human subjects.},
}