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Dimensionality measure in chaos theory
In chaos theory, the correlation dimension (denoted by ν) is a measure of the dimensionality of the space occupied by a set of random points, often referred
Correlation_dimension
Method of determining fractal dimension
Minkowski–Bouligand dimension, also known as Minkowski dimension or box-counting dimension, is a way of determining the fractal dimension of a bounded set
Minkowski–Bouligand_dimension
Nonparametric measure of rank correlation
In statistics, Spearman's rank correlation coefficient or Spearman's ρ is a number ranging from -1 to 1 that indicates how strongly two sets of ranks
Spearman's rank correlation coefficient
Spearman's_rank_correlation_coefficient
Measure of linear correlation
In statistics, the Pearson correlation coefficient (PCC), also known as Pearson's r, the Pearson product-moment correlation coefficient (PPMCC), or simply
Pearson correlation coefficient
Pearson_correlation_coefficient
Real-valued number of spatial dimensions
\log p_{\varepsilon }\rangle }{\log {\frac {1}{\varepsilon }}}}.} Correlation dimension is based on M {\displaystyle M} as the number of points used to
Fractal_dimension
Statistical measure
theory, distance correlation is a measure of dependence between two paired random vectors of arbitrary, not necessarily equal, dimension. The population
Distance_correlation
Correlation of a signal with a time-shifted copy of itself, as a function of shift
Autocorrelation, sometimes known as serial correlation in the discrete time case, measures the correlation of a signal with a delayed copy of itself.
Autocorrelation
Statistical relationship
In statistics, correlation is a type of statistical relationship between two random variables or bivariate data. It usually refers to the extent to which
Correlation
Mathematical technique in spectroscopic analysis
Two dimensional correlation analysis is a mathematical technique that is used to study changes in measured signals. As mostly spectroscopic signals are
Two-dimensional correlation analysis
Two-dimensional_correlation_analysis
Feature of systems that defy description
relationships between elements in systems where constraints (related to correlation of otherwise independent elements) simultaneously reduce the variations
Complexity
Sequence of data points over time
measures Measures based on the correlation sum Correlation dimension Correlation integral Correlation density Correlation entropy Approximate entropy Sample
Time_series
Variation in the time intervals between heartbeats
Other methods used are the correlation dimension, symbolic dynamics, nonlinear predictability, pointwise correlation dimension, approximate entropy, sample
Heart_rate_variability
the embedding dimension and τ {\displaystyle \tau } the time delay. The correlation integral is used to estimate the correlation dimension. An estimator
Correlation_integral
Discrete-time dynamical system
the fractal dimension of the strange attractor for the classical map yield a correlation dimension of 1.21 ± 0.01 and a box-counting dimension of 1.261 ±
Hénon_map
Numerical measure of a statistical relationship between variables
A correlation coefficient is a numerical measure of some type of linear correlation, meaning a linear function between two variables. The variables may
Correlation_coefficient
Number specifying how a quantum operator changes under dilations
a number called the scaling dimension of O {\displaystyle O} . This implies in particular that the two point correlation function ⟨ O ( x ) O ( 0 ) ⟩
Scaling_dimension
Property of a mathematical space
Exterior dimension Hurst exponent Isoperimetric dimension Metric dimension Order dimension q-dimension Fractal (q = 1) Correlation (q = 2) 0 dimension Point
Dimension
Covariance and correlation
In signal processing, cross-correlation is a measure of similarity of two series as a function of the displacement of one relative to the other. This
Cross-correlation
Process of reducing the number of random variables under consideration
Dimensionality reduction, or dimension reduction, is the transformation of data from a high-dimensional space into a low-dimensional space so that the
Dimensionality_reduction
Set of methods providing two-dimensional data
to a few bonds. The first and most popular two-dimension NMR experiment is the homonuclear correlation spectroscopy (COSY) sequence, which is used to
Two-dimensional nuclear magnetic resonance spectroscopy
Two-dimensional_nuclear_magnetic_resonance_spectroscopy
Concept in probability theory and statistics
In probability theory and statistics, partial correlation measures the degree of association between two random variables, with the effect of a set of
Partial_correlation
Chaotic model of atmospheric convection
Hausdorff dimension is estimated from above by the Lyapunov dimension (Kaplan-Yorke dimension) as 2.06±0.01, and the correlation dimension is estimated
Lorenz_system
the embedding dimension and τ {\displaystyle \tau } the time delay. The correlation sum is used to estimate the correlation dimension. Recurrence quantification
Correlation_sum
produce three-dimensional data, the Fourier shell correlation (FSC) measures the normalised cross-correlation coefficient between two 3-dimensional volumes
Fourier_shell_correlation
Species of amoeba
exhibits chaotic dynamics described by a low-dimensional chaotic attractor with a correlation dimension around 3-4, indicating that the seemingly random
Amoeba_proteus
Three-dimension losses and correlation in turbomachinery refers to the measurement of flow-fields in three dimensions, where measuring the loss of smoothness
Three-dimensional losses and correlation in turbomachinery
Three-dimensional_losses_and_correlation_in_turbomachinery
Measure of spatial autocorrelation
characterized by a correlation in a signal among nearby locations in space. Spatial autocorrelation is more complex than one-dimensional autocorrelation
Moran's_I
In time series modeling
Dechert and B. LeBaron. "A Test for Independence based on the Correlation Dimension". Econometric Reviews 15:197-235, 1996. Open-source implementation
Nonlinear autoregressive exogenous model
Nonlinear_autoregressive_exogenous_model
Simple polynomial map exhibiting chaotic behavior
dimension is less than or equal to unity. Numerical estimates yield a correlation dimension of 0.500±0.005 (Grassberger, 1983), a Hausdorff dimension
Logistic_map
Israeli physicist and chemist (born 1949)
1985. With Peter Grassberger, he introduced the correlation dimension as a measure of fractal dimension in 1983 (often referred to as the Grassberger–Procaccia
Itamar_Procaccia
Test statistic
the HypothesisTests package. Time-series regression ACF / PACF Correlation dimension Breusch–Godfrey test Ljung–Box test Chatterjee, Samprit; Simonoff
Durbin–Watson_statistic
Type of plot in descriptive statistics and chaos theory
choice of the embedding parameters, some dynamical invariants as correlation dimension, K2 entropy or mutual information, which are independent on the
Recurrence_plot
Way of inferring information from cross-covariance matrices
are correlations among the variables, then canonical-correlation analysis will find linear combinations of X and Y that have a maximum correlation with
Canonical_correlation
Theory in physics and mathematics
diagram Box-counting dimension Correlation dimension Conservative system Ergodicity False nearest neighbors Hausdorff dimension Invariant measure Lyapunov
Conservative_system
Concept in projective geometry
geometry, a correlation is a transformation of a d-dimensional projective space that maps subspaces of dimension k to subspaces of dimension d − k − 1,
Correlation (projective geometry)
Correlation_(projective_geometry)
Dynamical system that exhibits chaotic behavior
a Hausdorff dimension of 1.39 but Grassberger (1983) questions this value based on their difficulties measuring the correlation dimension. List of chaotic
Zaslavskii_map
Term in information theory
considering only marginal distribution of the process. Fractal dimension Correlation dimension Entropy (information theory) See Rényi 1959. See Çınlar 2011
Information_dimension
Method of rating a pipe's durability against pressure
Standard dimension ratio (SDR) is a method of rating a pipe's durability against pressure. The standard dimension ratio describes the correlation between
Standard_dimension_ratio
Mathematical image techniques
optimization techniques,[citation needed] it is slower. The two-dimensional discrete cross correlation r i j {\displaystyle r_{ij}} can be defined in several ways
Digital image correlation and tracking
Digital_image_correlation_and_tracking
Mathematical theorem
statistics and convex geometry. The Gaussian correlation inequality states: Let μ {\displaystyle \mu } be an n-dimensional Gaussian probability measure on R n
Gaussian correlation inequality
Gaussian_correlation_inequality
Australian academic
dose-response relationship between caffeine and EEG complexity (measured by correlation dimension, D2), across various cognitive tasks. This research demonstrated
Paul_Watters
Measure of a system's order
mechanics, the correlation function is a measure of the order in a system, as characterized by a mathematical correlation function. Correlation functions describe
Correlation function (statistical mechanics)
Correlation_function_(statistical_mechanics)
Austrian physicist (born 1940)
theory, where he introduced the idea of correlation dimension, a means of measuring a type of fractal dimension of the strange attractor. Grassberger's
Peter_Grassberger
Statistical measure of association for two binary variables
known as the mean square contingency coefficient or Yule coefficient of correlation and commonly denoted by φ or rφ, is a measure of association between
Phi_coefficient
Measure of covariance of components of a random vector
1088/0953-4075/46/16/164028 Noda, I. (1993). "Generalized two-dimensional correlation method applicable to infrared, Raman, and other types of spectroscopy"
Covariance_matrix
System with multiple fractal dimensions
figures here—is the box counting dimension. D(Q=1) is equal to the information dimension, and D(Q=2) to the correlation dimension. This relates to the "multi"
Multifractal_system
Generalized CCA
statistics, the generalized canonical correlation analysis (gCCA), is a way of making sense of cross-correlation matrices between the sets of random variables
Generalized canonical correlation
Generalized_canonical_correlation
Method of data analysis
opposed to the correlation method. The goal is to transform a given data set X of dimension p to an alternative data set Y of smaller dimension L. Equivalently
Principal_component_analysis
Analysis of the dimensions of different physical quantities
engineering and science, dimensional analysis of different physical quantities is the analysis of their physical dimension or quantity dimension, defined as a mathematical
Dimensional_analysis
Interaction between electrons, often complicating physical calculations
Electronic correlation is the interaction between electrons in the electronic structure of a quantum system. The correlation energy is a measure of how
Electronic_correlation
The correlation dimension was found to be 2.19 ± 0.01. The Lyapunov exponents, λ are approximately 0.1981, 0, −0.6581 and the Kaplan–Yorke dimension, DKY
Rabinovich–Fabrikant equations
Rabinovich–Fabrikant_equations
Dimensionality reduction technique
In statistics, functional correlation is a dimensionality reduction technique used to quantify the correlation and dependence between two variables when
Functional_correlation
Quantum field theory enjoying conformal symmetry
under conformal transformations. In two dimensions, there is an infinite-dimensional algebra of local conformal transformations, and conformal field theories
Conformal_field_theory
Statistic comparing ordinal rankings
In statistics, a rank correlation is any of several statistics that measure an ordinal association — the relationship between rankings of different ordinal
Rank_correlation
The cross-correlation matrix of two random vectors is a matrix containing as elements the cross-correlations of all pairs of elements of the random vectors
Cross-correlation_matrix
Method of partitioning data points into groups based on their similarity
partitioning data points into groups based on similarity or dissimilarity. Correlation clustering is a clustering framework in which a set of objects is partitioned
Correlation_clustering
Statistic for rank correlation
In statistics, the Kendall rank correlation coefficient, commonly referred to as Kendall's τ coefficient (after the Greek letter τ, tau), is a statistic
Kendall rank correlation coefficient
Kendall_rank_correlation_coefficient
Structure that categorizes facts and measures in a data warehouse
several junk dimensions. One junk dimension can hold several true/false or yes/no indicators that have no correlation with each other, so it would be convenient
Dimension_(data_warehouse)
Infinitely detailed mathematical structure
arbitrarily small scales, usually having a fractal dimension strictly exceeding the topological dimension. Many fractals appear similar at various scales
Fractal
Statistical method
can be thought of as a special case of errors-in-variables models. The correlation between a variable and a given factor, called the variable's factor loading
Factor_analysis
American economist (born 1941)
Scheinkman, B. LeBaron (1996). A test for independence based on the correlation dimension. Econometric Reviews 15, 197--235. Brock, W.A., S.N. Durlauf (2005)
William_A._Brock
Plot using the dispersal of scattered dots to show the relationship between variables
positive correlation between the variables being studied. If the pattern of dots slopes from upper left to lower right, it indicates a negative correlation. A
Scatter_plot
Statistical transformation
z-transformation) of a Pearson correlation coefficient is its inverse hyperbolic tangent (artanh). When the sample correlation coefficient r is near 1 or
Fisher_transformation
Method used in statistics, pattern recognition, and other fields
combination may be used as a linear classifier, or, more commonly, for dimensionality reduction before later classification. LDA is closely related to analysis
Linear_discriminant_analysis
Difficulties arising when analyzing data with many aspects ("dimensions")
The curse of dimensionality refers to various phenomena that arise when analyzing and organizing data in high-dimensional spaces that do not occur in low-dimensional
Curse_of_dimensionality
nonlinear physics, in particular for introducing the correlation dimension as a measure of the fractal dimension of strange attractors and studies of other complex
EPS Statistical and Nonlinear Physics Prize
EPS_Statistical_and_Nonlinear_Physics_Prize
night sleep and artificial stochastic control signals have similar correlation dimension". Electroencephalogr. Clin. Neurophysiol. 90 (5): 384–387. doi:10
Brain_connectivity_estimators
Table that displays the frequency of variables
the Theory of Contingency and Its Relation to Association and Normal Correlation", part of the Drapers' Company Research Memoirs Biometric Series I published
Contingency_table
Mathematical model of ferromagnetism in statistical mechanics
magnetization as the limit of correlation functions. At the critical point, the two-dimensional Ising model is a two-dimensional conformal field theory. The
Ising_model
Conformal field theory on a 2D spacetime
A two-dimensional conformal field theory is a quantum field theory on a Euclidean two-dimensional space, that is invariant under local conformal transformations
Two-dimensional conformal field theory
Two-dimensional_conformal_field_theory
Description of particle density in statistical mechanics
In statistical mechanics, the radial distribution function, (or pair correlation function) g ( r ) {\displaystyle g(r)} in a system of particles (atoms
Radial_distribution_function
Physics model of a 1D gas of bosons
the repulsive interactions between bosonic particles confined to one dimension dominate the system's physics. It is named after physicists Lewi Tonks
Tonks–Girardeau_gas
Statistical algorithm
two or more estimates of state variables in a Kalman filter when the correlation between them is unknown. Items of information a and b are known and are
Covariance_intersection
Parameter describing physics near critical points
critical exponents depend only on: the dimension of the system the range of the interaction the spin dimension These properties of critical exponents
Critical_exponent
of standard deviations away from the average in each dimension. For example, in a 2-dimensional scatter diagram with variables x {\displaystyle x} and
Standard_deviation_line
Concept in statistical analysis
of the other variable (possibly the independent variable) (see also correlation and simple linear regression). Bivariate analysis can be contrasted with
Bivariate_analysis
Method used in psychological and neurophysiological research
The reverse correlation technique is a data driven study method used primarily in psychological and neurophysiological research. This method earned its
Reverse_correlation_technique
Experiment in spectroscopy
heteronuclear single quantum coherence or heteronuclear single quantum correlation experiment, normally abbreviated as HSQC, is used frequently in NMR spectroscopy
Heteronuclear single quantum coherence spectroscopy
Heteronuclear_single_quantum_coherence_spectroscopy
NMR correlation experiment
261–271. C. Griesinger, O. W. Sørensen and R. R. Ernst (1985). Two-dimensional correlation of connected NMR transitions. J. Am. Chem. Soc. 107, 6394–6396
Exclusive correlation spectroscopy
Exclusive_correlation_spectroscopy
Statistical test
Mantel, is a statistical test of the correlation between two matrices. The matrices must be of the same dimension; in most applications, they are matrices
Mantel_test
Conformal field theory of the 2D Ising model critical point
formulas have generalizations to correlation functions on the torus, which involve theta functions. The two-dimensional Ising model is mapped to itself
Two-dimensional critical Ising model
Two-dimensional_critical_Ising_model
Grouping a set of objects by similarity
subspace clustering and DiSH) and correlation clustering (HiCO, hierarchical correlation clustering, 4C using "correlation connectivity" and ERiC exploring
Cluster_analysis
Simultaneous observation and analysis of more than one outcome variable
over time. Iconography of correlations consists in replacing a correlation matrix by a diagram where the "remarkable" correlations are represented by a solid
Multivariate_statistics
Classification algorithm
removes only the correlations but leaves variances intact, the standardization transform sets variances to 1 but leaves correlations intact, a coloring
Whitening_transformation
Signal analysis to extract information from electroencephalography (EEG) data
adopted many useful nonlinear parameters such as Lyapunov Exponent, Correlation Dimension, and entropies like Approximate Entropy and Sample Entropy. The
EEG_analysis
Length of a line segment
distance from a point to a plane in three-dimensional Euclidean space The distance between two lines in three-dimensional Euclidean space The distance from a
Euclidean_distance
Framework for cross-cultural communication
Short-Term Orientation (LTO), and Indulgence vs. Restraint (IVR). Each dimension highlights how cultures differ in terms of authority, social relationships
Hofstede's cultural dimensions theory
Hofstede's_cultural_dimensions_theory
Collection of models with the same renormalization group flow limit
lattice dimension. Typically, a family of universality classes has a lower and upper critical dimension: below the lower critical dimension, the universality
Universality_class
Statistical measure of association
of their maximum possible variation. φc2 is the mean square canonical correlation between the variables.[citation needed] In the case of a 2 × 2 contingency
Cramér's_V
Study of high-dimensional data
In statistical theory, the field of high-dimensional statistics studies data whose dimension is larger (relative to the number of datapoints) than typically
High-dimensional_statistics
Nonlinear infrared spectroscopy technique
degrees of freedom and their change upon water reorganization. Two-dimensional correlation analysis P. Hamm; M. H. Lim; R. M. Hochstrasser (1998). "Structure
Two-dimensional infrared spectroscopy
Two-dimensional_infrared_spectroscopy
Representation learning technique
representation learning technique that maps complex, high-dimensional data into a lower-dimensional vector space of numerical vectors. It also denotes the
Embedding_(machine_learning)
canonical correlation analysis is a way of using ridge regression to solve the singularity problem in the cross-covariance matrices of canonical correlation analysis
Regularized canonical correlation analysis
Regularized_canonical_correlation_analysis
Concept in projective geometry
empty if K is infinite. When composed with itself, the correlation φ(xP) = xH (in any dimension) produces the identity function, so it is a polarity. The
Duality_(projective_geometry)
Measure of the joint variability
not necessarily have the same units. In those situations, we use the correlation coefficient, which normalizes the covariance to a value between -1 and
Covariance
Machine learning framework for portfolio construction
several correlation matrices; the condition number is represented by the ratio of the first to last eigenvalues in each sequence. A diagonal correlation matrix
Hierarchical_Risk_Parity
Comparison of two distributions
"probability plot correlation coefficient" (PPCC plot) is the correlation coefficient between the paired sample quantiles. The closer the correlation coefficient
Q–Q_plot
Corrado Giannantoni Correlation dimension Correlation function (astronomy) Correlation function (quantum field theory) Correlation function (statistical
Index_of_physics_articles_(C)
Table layout for visualizing performance; also called an error matrix
most informative metric to evaluate a confusion matrix is the Matthews correlation coefficient (MCC). Other metrics can be included in a confusion matrix
Confusion_matrix
Measure of openness to one's sexuality
with poor sexual education. Research on this personality dimension has shown a correlation between erotophilia and a more consistent use of contraception
Erotophilia
CORRELATION DIMENSION
CORRELATION DIMENSION
Biblical
punishment; correction
Boy/Male
Tamil
Trigun | தà¯à®°à®¿à®•à¯à®£
The three dimensions
Trigun | தà¯à®°à®¿à®•à¯à®£
Boy/Male
Bengali, Hindu, Indian, Marathi
One who is Heard from Many Dimensions
Boy/Male
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Telugu
The Three Dimensions
Girl/Female
Tamil
Trikaya | தà¯à®°à®¿à®•à®¾à®¯à®¾
Three dimensional
Trikaya | தà¯à®°à®¿à®•à®¾à®¯à®¾
Girl/Female
Biblical
Punishment, correction.
Girl/Female
Tamil
Triguni | தà¯à®°à¯€à®•à¯‚நீ
The three dimensions
Triguni | தà¯à®°à¯€à®•à¯‚நீ
Girl/Female
Hindu
Three dimensional
Girl/Female
Indian, Telugu
Uni-dimensional
Girl/Female
Hindu, Indian
Three Dimension
Boy/Male
Hindu, Indian
Dimensions
Boy/Male
Sikh
Three/third dimension, Cross over worldy desires
Boy/Male
Hindu, Indian
Controlling All Three Dimension
Boy/Male
Hindu, Indian
Shining in Three Dimensions
Girl/Female
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Telugu
The Three Dimensions
Boy/Male
Tamil
Dimensions
Girl/Female
Gujarati, Indian, Kannada
Dimension; Purity
Boy/Male
Tamil
Triyog | தà¯à®°à¯€à®¯à¯‹à®•
Controlling all three dimension
CORRELATION DIMENSION
CORRELATION DIMENSION
Girl/Female
Hindu
Satisfied, Love, Attachment or pleasure
Boy/Male
Hindu
Head of the monkey army
Boy/Male
Shakespearean
The Taming of the Shrew' Lucentio, son to Vincentio, in love with Bianca.
Boy/Male
Indian
Horseman, Knight, Intelligent
Girl/Female
Bengali, Hindu, Indian, Kannada, Marathi, Sanskrit, Sindhi, Telugu
Good Habits; Queen; Perfection
Girl/Female
Muslim
Bright moonlight
Girl/Female
French
Born in the spring.
Girl/Female
Hindu, Indian, Malayalam, Marathi
Gold in Sikh or Punjabi
Girl/Female
American, Christian, Danish, French, Gujarati, Indian
Beloved One; Dear; Variant of Cherie Dear One; Darling
Boy/Male
Hindu
Star, Pupil of eye, Protector
CORRELATION DIMENSION
CORRELATION DIMENSION
CORRELATION DIMENSION
CORRELATION DIMENSION
CORRELATION DIMENSION
adv.
In a correlative relation.
n.
The act corrugating; contraction into wrinkles or alternate ridges and grooves.
n.
The act or process of passing, or causing to pass, from a fluid to a solid state, as by the abstraction of heat; the act or process of freezing.
n.
Quality of being correlative.
p. pr. & vb. n.
of Correlate
n.
The flowing of different streams into one.
n.
The state of being congealed.
n.
Mutual or reciprocal relation; correlation.
n.
Correction; chastisement; punishment inflicted by way of correction and training.
a.
Submissive to correction; docile.
a.
Having or indicating a reciprocal relation.
n.
Emendation; correction.
n.
Abatement of noxious qualities; the counteraction of what is inconvenient or hurtful in its effects; as, the correction of acidity in the stomach.
n.
One who, or that which, stands in a reciprocal relation, or is correlated, to some other person or thing.
n.
An allowance made for inaccuracy in an instrument; as, chronometer correction; compass correction.
n.
The quality of correlation; reciprocation; interchange; interaction; interdependence.
n.
That which is congealed.
n.
The quality or state of being irrelative; want of connection or relation.
n.
The antecedent of a pronoun.
n.
Reciprocal relation; corresponding similarity or parallelism of relation or law; capacity of being converted into, or of giving place to, one another, under certain conditions; as, the correlation of forces, or of zymotic diseases.