The maximal data piling direction for discrimination
نویسندگان
چکیده
منابع مشابه
Maximal Data Piling in Discrimination
In a binary discrimination problem, a linear classifier finds a linear hyperplane that separates two classes by partitioning the data space. Especially in a High Dimension Low Sample Size (HDLSS) setting, there are linear separating hyperplanes such that the projections of the training data points onto their normal direction vectors are identically zero, or some non-zero constant. Of interest i...
متن کاملClustering High Dimension, Low Sample Size Data Using the Maximal Data Piling Distance
We propose a new hierarchical clustering method for high dimension, low sample size (HDLSS) data. The method utilizes the fact that each individual data vector accounts for exactly one dimension in the subspace generated by HDLSS data. The linkage that is used for measuring the distance between clusters is the orthogonal distance between affine subspaces generated by each cluster. The ideal imp...
متن کاملInfant direction discrimination thresholds
Although adults can detect direction differences as small as 1 arc degree, the ability of infants to discriminate direction of motion is less clear. This study measures the precision with which 6-, 12-, and 18-week-old infants discriminate direction of motion. Infants viewed random dot kinematograms in which a direction difference between the target and background dots defined a circular target...
متن کاملHuman smooth pursuit direction discrimination
The smooth pursuit system is usually studied using single moving objects as stimuli. However, the visual motion system can respond to stimuli that must be integrated spatially and temporally (Williams DG, Sekuler R. Vision Res 1984;24:55-62; Watamaniuk SNJ, Sekuler R, Williams DW. Vision Res 1989;29:47-59). For example, when each dot of a random-dot cinematogram (RDC) is assigned a new directio...
متن کاملAxis-of-motion affects direction discrimination, not speed discrimination
The motion of an object can be described by a single velocity vector, or equivalently, by direction and speed separately. Similarly, our ability to see subtle differences in the motion of two objects could be constrained by either a velocity-based sensory response, or separate sensory responses to direction and speed. To distinguish between these possibilities we investigated whether direction ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Biometrika
سال: 2010
ISSN: 0006-3444,1464-3510
DOI: 10.1093/biomet/asp084