multi-dimensional scaling
31Population history of Egypt — The land currently known as Egypt has a long and involved population history. This is partly due to its geographical location at the crossroads of several major cultural areas: the Mediterranean, the Middle East, the Sahara and East Africa. In… …
32cluster analysis — A form of multivariate analysis , of which the purpose is to divide a set of objects (such as variables or individuals), characterized by a number of attributes, into a set of clusters or classes, in such a way that the objects in a class are… …
33computer packages — Quantitative sociologists now have access to a huge variety of statistical packages for managing and analysing large scale data sets. The most widely used of these is probably SPSS (the Statistical Package for the Social Sciences). However, newer …
34General Distance Model — See multi dimensional scaling …
35regression — regression, regression analysis A term used originally to describe the fact that if, for example, parents and children s weights are measured, the children s weights tend to be closer to the average than are those of their parents: unusually… …
36social distance — Refers to similarity or closeness based upon social variables or networks as in occupational mobility , or the Bogardus social distance scale based upon willingness to allow various ethnic groups to degrees of intimacy (for example, ‘Would you… …
37MDS — Abbreviation for multi dimensional scaling …
38Nonlinear dimensionality reduction — High dimensional data, meaning data that requires more than two or three dimensions to represent, can be difficult to interpret. One approach to simplification is to assume that the data of interest lies on an embedded non linear manifold within… …
39Discrete Fourier transform — Fourier transforms Continuous Fourier transform Fourier series Discrete Fourier transform Discrete time Fourier transform Related transforms In mathematics, the discrete Fourier transform (DFT) is a specific kind of discrete transform, used in… …
40Discrete cosine transform — A discrete cosine transform (DCT) expresses a sequence of finitely many data points in terms of a sum of cosine functions oscillating at different frequencies. DCTs are important to numerous applications in science and engineering, from lossy… …
