### Some articles on *correlation, correlations*:

**Correlation**Database

... A

**correlation**database is a database management system (DBMS) that is data-model-independent and designed to efficiently handle unplanned, ad hoc queries in an analytical system environment ... databases which use a column-based storage method, a

**correlation**database uses a value-based storage (VBS) architecture in which each unique data value is stored only once and an auto-generate ...

Spatial

... Spatial

**Correlation**- Existence... Spatial

**correlation**means that there is a**correlation**between the received average signal gain and the angle of arrival of a signal ... Rich multipath propagation decreases the spatial**correlation**by spreading the signal such that multipath components are received from many different spatial directions ... Short antenna separations increase the spatial**correlation**as adjacent antennas will receive similar signal components ...Mathematical Description - Spatial

... Under the Kronecker model, the spatial

**Correlation**Matrices... Under the Kronecker model, the spatial

**correlation**depends directly on the eigenvalue distributions of the**correlation**matrices and ... High spatial**correlation**is represented by large eigenvalue spread in or, meaning that some spatial directions are statistically stronger than others ... Low spatial**correlation**is represented by small eigenvalue spread in or, meaning that almost the same signal gain can be expected from all spatial directions ...**Correlation**(disambiguation)

...

**Correlation**is a measure of relationship between two mathematical variables or measured data values, which includes the Pearson

**correlation**coefficient as a special case ...

**Correlation**may also refer to Electronic

**correlation**, a description of the interaction between electrons in a quantum system Phase

**correlation**, an analysis of translative ...

**Correlation**Clustering

...

**Correlation**clustering also relates to a different task, where

**correlations**among attributes of feature vectors in a high-dimensional space are ... These

**correlations**may be different in different clusters, thus a global decorrelation cannot reduce this to traditional (uncorrelated) clustering ...

**Correlations**among subsets of attributes result in different spatial shapes of clusters ...

### More definitions of "correlation":

- (
*noun*): A reciprocal relation between two or more things.

Synonyms: correlativity

- (
*noun*): A statistic representing how closely two variables co-vary; it can vary from -1 (perfect negative correlation) through 0 (no correlation) to +1 (perfect positive correlation).

Example:*"What is the correlation between those two variables?"*

Synonyms: correlation coefficient, coefficient of correlation

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