منابع مشابه
Principle Curve Tracing
We propose a principal curve tracing algorithm that uses the gradient and the Hessian of a given density estimate. Curve definition requires the local smoothness of data density and is based on the concept of subspace local maxima. Tracing of the curve is handled through the leading eigenvector where fixed-step updates are used. We also propose an image segmentation algorithm based on the origi...
متن کاملPrincipal curve tracing
We propose a principal curve tracing algorithm that uses the gradient and the Hessian of a given density estimate. Curve definition requires the local smoothness of data density and is based on the concept of subspace local maxima. Tracing of the curve is handled through the leading eigenvector where fixed-step updates are used. We also propose an image segmentation algorithm based on the origi...
متن کاملR. DUNCAN LUCE and A.A.J. MARLEY ON ELEMENTS OF CHANCE
One aspect of the utility of gambling may evidence itself in failures of idempotence, i.e., when all chance outcomes give rise to the same consequence the ‘gamble’ may not be indifferent to its common consequence. Under the assumption of segregation, such gambles can be expressed as the joint receipt of the common consequence and what we call ‘an element of chance’, namely, the same gamble with...
متن کاملTracing index of rational curve parametrizations
A rational parametrization of an algebraic curve establishes a rational correspondence of this curve with the affine or projective line. This correspondence is a birational equivalence if the parametrization is proper. So, intuitively speaking, a rational parametrization determines a linear tracing of the curve, when the parameter takes values in the algebraic closure of the ground field. Such ...
متن کاملDuncan Wood
Mr. Duncan Wood, formerly Consultant Surgeon to e Royal Hospital, Bristol, Cossham Memorial HosBristol, and to Bridgwater Hospital, Somerset, 'ed on July 24th, 1969, at the age of 82. He was born on September 2nd, 1886, at iCorsham, J'tshire, where his father was in General Practice. ? was educated at the Imperial Service College, ^ich was at Windsor in those days. From there he ?nt to the Lond...
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ژورنال
عنوان ژورنال: The School Review
سال: 1911
ISSN: 0036-6773
DOI: 10.1086/435686