The principal points, which can be based on either raw curves or derivatives, effectively reduce the functional data to multivariate data, and enable subsequent k-means clustering.
This method utilizes principal points which summarize important features of the relationship between X ij and t ij, or, in this example, the relationship between urinary phthalate metabolite concentration and gestational age at sample collection [ 22, 23].
"We're all in danger of losing the plot here and we have to focus on the principal point, which is that this is the greatest club rugby competition in the world and we must get the right people around the table at the right time to discuss the right things," he said, adding that his union was willing to negotiate on new tournament structures and a fresh distribution of income.
In Table 2, the estimated principal point, which is the centre of the circular feature on the image plane obtained using Hough Circle Transform, is easily translated into the centre of the virtual sphere.
Three principal points on which there appears to be consensus among these letters are energy diversity, conservation/efficiency and low- and no-carbon energy sources.
Then he went on to describe taking a Marine One helicopter ride with his family to Camp David, the principal point of which was that one of his daughters discovered a favorite candy was provided on board and asked if she could she have one.
Lee's Ferry served as a military outpost for 19th century settlements in Utah, a center of limited gold seeking and since the 1920s the principal point at which river flow is measured to determine water allocations in the Colorado River basin.
The data points (which are entries of the principal eigenvector) are labeled by the parameter variation that they multiply to form the CPD, see Eq. (3).
As Brown notes: The principal point, however, on which the counsel relied, and which he hoped to establish, was that the Tonawandas were not bound by the Treaties, because the chiefs there protested against and refused to sign them.
A principal curve is then defined by the special property that its location at any point of interest is the mean value of the points which project there, namely E P { P | s f (P ) = s } = f (s ).
The intrinsic matrix of size contains the pixel coordinates of the image center, also known as the principal point, the scaling factor, which defines the number of pixels per unit distance in image coordinates, and the source-to-image distance SID, also known as the focal length, f of the C-arm (in meters).
