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Principal component analysis (PCA) is a linear dimensionality reduction technique with applications in exploratory data analysis, visualization and data preprocessing.. The data is linearly transformed onto a new coordinate system such that the directions (principal components) capturing the largest variation in the data can be easily identified.
Cultural economics is the branch of economics that studies the relation of culture to economic outcomes. Here, 'culture' is defined by shared beliefs and preferences of respective groups. Programmatic issues include whether and how much culture matters as to economic outcomes and what its relation is to institutions. [ 1 ]
The 2014 guaranteed algorithm for the robust PCA problem (with the input matrix being = +) is an alternating minimization type algorithm. [12] The computational complexity is () where the input is the superposition of a low-rank (of rank ) and a sparse matrix of dimension and is the desired accuracy of the recovered solution, i.e., ‖ ^ ‖ where is the true low-rank component and ^ is the ...
Output after kernel PCA, with a Gaussian kernel. Note in particular that the first principal component is enough to distinguish the three different groups, which is impossible using only linear PCA, because linear PCA operates only in the given (in this case two-dimensional) space, in which these concentric point clouds are not linearly separable.
Organizational culture encompasses the shared norms, values, behaviors observed in schools, universities, not-for-profit groups, government agencies, and businesses reflecting their core values and strategic direction. [1] [2] Alternative terms include business culture, corporate culture and company culture. The term corporate culture emerged ...
A variety of scholars have presented survey data in support of Cultural Theory. The first of these was Karl Dake, a graduate student of Wildavsky, who correlated perceptions of various societal risks—environmental disaster, external aggression, internal disorder, market breakdown—with subjects’ scores on attitudinal scales that he believed reflected the “cultural worldviews ...
Examples of this would be employee professionalism, or a "family first" mantra. Trouble may arise if espoused values by leaders are not in line with the deeper tacit assumptions of the culture. [4] Shared basic assumptions are the deeply embedded, taken-for-granted behaviours which are usually unconscious, but constitute the essence of culture.
In this theory, cultural forms and practices (Antonio Gramsci's superstructure and Richard Middleton's instance or level of practice) have relative autonomy; socio-economic structures of power do not determine them, but rather they relate to them. "The theory of articulation recognizes the complexity of cultural fields.