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Mathematics (U)
    General principles of mathematics (Ub)
        Mathematical methods (Ubb)
             Use For: Mathematical techniques
            Programming (Mathematics) (Ubbp)
                 Use For: Mathematical programming; Optimization theory
                Integer programming (Ubbpj)
                    Mixed integer programming (Ubbpjm)
                Linear programming (Ubbpm)
                Nonlinear programming (Ubbpp)
                     Related Term (Associative): Branch and bound algorithms (Ubmgb)
                    Dynamic programming (Ubbppd)
                Stochastic programming (Ubbps)
        Logic (Mathematics) (Ubd)
            Boolean operators (Ubdb)
            Fuzzy logic (Ubdf)
                 Related Term (Associative): Soft computing (Xbkds)
            Sets (Ubds)
                Continuum (Mathematics) (Ubdsc)
                Fuzzy sets (Ubdsf)
                Invariants (Ubdsj)
                Lattices (Mathematics) (Ubdsm)
            Variables (Ubdv)
                Complex variables (Ubdvc)
        Mathematical relations (Ube)
            Equations (Ubee)
                Formulas (Ubeef)
                Linear equations (Ubeem)
                Nonlinear equations (Ubeep)
            Transformations (Mathematics) (Ubet)
                 Use For: Transformations
        Approximation (Mathematics) (Ubf)
             Use For: Approximations
            Asymptotic expansion (Ubfb)
                 Use For: Asymptotic series
            Curve fitting (Ubfc)
            Finite differences (Ubff)
            Interpolation (Ubfj)
            Iterative methods (Ubfk)
                 Use For: Iterations
                 Related Term (Associative): Tabu search (Ubkpt)
                Validity (Ubfkv)
            Least squares method (Ubfm)
            Numerical integration (Ubfp)
            Splines (Ubfs)
        Combinatorial analysis (Ubk)
            Optimization (Ubkp)
                 Use For: Optimisation
                Maximization (Ubkpm)
                     Use For: Maximisation
                Minimization (Ubkpp)
                     Use For: Minimisation
                Simulated annealing (Ubkps)
                Tabu search (Ubkpt)
                     Related Term (Associative): Iterative methods (Ubfk)
        Mathematical models (Ubm)
             Use For: Three dimensional
            Econometric models (Ubme)
                 Related Term (Associative): Multinomial logits (Usecmm)
            Algorithms (Ubmg)
                Branch and bound algorithms (Ubmgb)
                     Related Term (Associative): Nonlinear programming (Ubbpp)
                Computer algorithms (Ubmgc)
                    Expert systems (Ubmgce)
                         Use For: Knowledge based systems
                         Related Term (Associative): Artificial intelligence (Xbkdb)
                        Knowledge acquisition (Expert systems) (Ubmgcek)
                Fuzzy algorithms (Ubmgf)
                Genetic algorithms (Ubmgg)
                     Related Term (Associative): Soft computing (Xbkds)
                Shortest path algorithms (Ubmgq)
                Simplex method (Ubmgs)
                Progression (Mathematics) (Ubmgu)
            Automata theory (Ubmk)
                Finite automata (Ubmkf)
                    Cellular automata (Ubmkfc)
            Simulation (Ubms)
                 Use For: Computer simulation
                 Related Term (Associative): Computer models (Xbkpm)
                Analog simulation (Ubmsb)
                Digital simulation (Ubmsd)
                Hardware in the loop simulation (Ubmsf)
                     Use For: HIL simulation
                Hybrid simulation (Ubmsh)
                Microsimulation (Ubmsm)
                Virtual reality (Ubmsv)
                     Use For: Virtual environments
        Theorems (Ubt)
            Proof (Ubtp)
            Theory (Ubtt)
                 Use For: Theoretical analysis; Theories
    Algebra and number theory (Ud)
        Number theory (Udc)
        Algebra (Udf)
            Algebraic operations (Udfb)
                Exponential functions (Udfbe)
                Logarithms (Udfbf)
                    Modulus (Udfbfm)
                Ratios (Udfbp)
                    Proportion (Udfbpp)
                Dimensionless parameters (Udfbq)
            Theory of equations (Udfe)
                Boolean algebra (Udfeb)
                Linear algebra (Udfed)
                    Determinants (Mathematics) (Udfedd)
                    Eigenvalues (Udfede)
                    Matrices (Mathematics) (Udfedm)
                         Use For: Matrix methods
                Multinomials (Udfem)
                     Related Term (Associative): Multinomial logits (Usecmm); Multinomial probits (Usecpm)
                Polynomials (Udfep)
                    Discriminant analysis (Udfepd)
                    Quadratic equations (Udfepq)
                Simultaneous equations (Udfes)
    Arithmetic (Uf)
        Arithmetic operations (Ufb)
            Fractions (Ufbf)
            Percent (Ufbp)
        Calculation (Ufd)
            Error analysis (Ufde)
        Numbers (Ufn)
    Mathematical analysis (Uh)
        General aspects of mathematical analysis (Uhb)
            Calculus (Uhbc)
                Fourier analysis (Uhbcf)
                Fourier series (Uhbcg)
                Tensor analysis (Uhbct)
                Vector analysis (Uhbcv)
                    Eigenvectors (Uhbcvw)
            Functions (Mathematics) (Uhbd)
                Oscillations (Mathematics) (Uhbdp)
            Functional analysis (Uhbf)
                Harmonic analysis (Mathematics) (Uhbfh)
                    Wavelets (Uhbfhw)
                         Related Term (Associative): Transforms (Integral operators) (Uhct)
                Integral equations (Uhbfk)
                Integrals (Uhbfm)
                    Calculus of variations (Uhbfmc)
                        Variational inequalities (Mathematics) (Uhbfmcv)
                Potential theory (Uhbfp)
        Operational calculus (Uhc)
            Transforms (Integral operators) (Uhct)
                 Related Term (Associative): Wavelets (Uhbfhw)
                Fourier transforms (Uhctf)
                     Use For: Fourier transformation
                    Fast Fourier transforms (Uhctff)
                Hough transforms (Uhcth)
                Laplace transforms (Uhctm)
        Differential equations (Uhd)
            Boundary value problems (Uhdb)
                 Use For: Boundary values
                Boolean functions (Uhdbb)
            Dynamic models (Uhde)
                Green's function (Uhdeg)
            Partial differential equations (Uhdk)
                Hyperbolic functions (Uhdkh)
            Linear differential equations (Uhdm)
            Nonlinear differential equations (Uhdn)
            Perturbation theory (Uhdp)
                Perturbations (Uhdpp)
        Special functions (Mathematics) (Uhm)
            Lagrangian functions (Uhmp)
        Numerical analysis (Uht)
             Use For: Numerical solutions
            Boundary element method (Uhtb)
                 Use For: Boundary integral equations
            Difference equations (Uhtd)
            Extrapolation (Uhte)
        Sensitivity analysis (Uhv)
        Frequency domain analysis (Uhw)
        Time domain analysis (Uhx)
        Catastrophe theory (Uhy)
    Heuristic methods (Uk)
    Topology (Un)
        Graph theory (Ung)
            Petri nets (Ungp)
            Traveling salesman problem (Ungs)
            Trees (Mathematics) (Ungv)
        Structural stability (Mathematics) (Uns)
    Geometry (Up)
        Geometric configurations and shapes (Upb)
            Circles (Upba)
            Cones (Upbb)
            Cubes (Upbc)
            Curvature (Upbd)
                 Use For: Camber
                 Related Term (Associative): 
            Curves (Geometry) (Upbe)
                Radials (Upber)
                Sine curves (Upbes)
                     Use For: Sinusoids
            Cylinders (Geometry) (Upbf)
                Circular cylinders (Geometry) (Upbfc)
            Fractals (Upbj)
            Parabolas (Upbp)
            Rectangles (Upbr)
            Spheres (Upbs)
            Spirals (Upbt)
            Symmetry (Upbu)
                Bodies of revolution (Upbub)
            Triangles (Upbw)
        Geometric elements (Upd)
            Area (Upda)
            Axis (Updb)
            Diameter (Updg)
            Height (Updj)
                Altitude (Updjb)
            Orthogonality (Updo)
            Points (Geometry) (Updp)
                Ellipses (Updpe)
            Radius (Updr)
            Secant (Updv)
            Tangents (Updw)
            Width (Updx)
        Euclidean spaces (Uph)
        Analytic geometries (Upq)
            Parametric equations (Upqe)
    Statistical analysis (Us)
         Use For: Mathematical statistics; Statistical methods
         Related Term (Associative): ; Statistics (Tprs)
        Analysis of variance (Usa)
             Use For: Variance analysis
            Covariance (Usac)
            Variance (Usav)
                Heteroscedasticity (Usavh)
        Backcalculation (Usb)
        Correlation analysis (Usd)
             Use For: Correlation (Mathematics)
            Autocorrelation (Usdb)
            Cross correlation (Usdc)
            Spatial analysis (Usds)
                 Related Term (Associative): Geographic information systems (Xbfg)
        Estimation theory (Use)
            Bias (Statistics) (Useb)
            Choice models (Usec)
                 Related Term (Associative): 
                Logits (Usecm)
                     Use For: Logit models
                    Multinomial logits (Usecmm)
                         Related Term (Associative): Econometric models (Ubme); Multinomials (Udfem)
                Probits (Usecp)
                     Use For: Probit models
                    Multinomial probits (Usecpm)
                         Related Term (Associative): Multinomials (Udfem)
            Maximum likelihood method (Usem)
        Hypothesis testing (Usf)
            Chi square test (Usfc)
            Critical values (Usfe)
        Mathematical prediction (Ush)
             Related Term (Associative): Forecasting (Epdmf)
            Decision theory (Ushd)
                 Related Term (Associative): Decision support systems (Xbfd)
                Bayes' theorem (Ushdb)
                Expected value (Ushde)
                     Use For: Expectation (Decision theory)
        Meta-analysis (Usi)
        Multivariate analysis (Usj)
            Cluster analysis (Usjb)
                 Use For: Aggregation
            Disaggregate analysis (Usjd)
            Factor analysis (Usjf)
            Structural equation modeling (Usjs)
        Nonparametric analysis (Usk)
        Parametric analysis (Usm)
        Probability (Usp)
            Confidence intervals (Uspc)
                Confidence coefficient (Uspcc)
                Confidence limits (Uspcm)
            Game theory (Uspg)
            Goodness of fit (Uspj)
            Monte Carlo method (Uspm)
            Personal probability (Uspn)
                 Use For: Subjective probability
            Probability density functions (Uspp)
            Random functions (Uspr)
        Randomization (Usq)
        Ranking (Statistics) (Usr)
            Significance (Statistics) (Usrs)
        Regression analysis (Uss)
             Use For: Regression
            Linear regression analysis (Ussm)
                 Use For: Linear regression
            Logistic regression analysis (Usso)
            Multiple regression analysis (Ussr)
        Reliability (Statistics) (Ust)
        Sequential analysis (Usv)
        Statistical sampling (Usw)
             Use For: Sampling (Statistics)
            Control groups (Uswc)
                 Related Term (Associative): 
            Statistical inference (Uswj)
                 Use For: Inference mechanisms
            Random sampling (Uswr)
                Standard error (Uswrs)
            Representative samples (Statistics) (Uswt)
            Sufficiency (Statistics) (Uswv)
            T test (Uswy)
        Stochastic processes (Usx)
             Use For: Random processes
            Branching processes (Usxb)
            Markov processes (Usxm)
                Markov chains (Usxmc)
            Queuing theory (Usxq)
                 Use For: Queuing models
            Random variables (Usxt)
        Descriptive statistics (Usy)
            Dispersion (Statistics) (Usyb)
            Distributions (Statistics) (Usyd)
                 Use For: Distribution theory; Probability distribution functions; Statistical distributions
                Beta distributions (Usydb)
                Binomial distributions (Usydd)
                Chi square distributions (Usydf)
                Delta functions (Usydj)
                Exponential distributions (Usydk)
                Frequency distributions (Usydl)
                    Kurtosis (Usydlk)
                Gamma distributions (Usydn)
                Geometric distributions (Usydp)
                Normal distributions (Usydr)
                Poisson distributions (Usydt)
                Skewed distributions (Usydv)
                Weibull distributions (Usydx)
            Factors (Statistics) (Usyf)
                Coefficients (Usyfc)
                Crash modification factors (Usyfd)
                     Use For: Accident modification factors
                     Related Term (Associative): Crash analysis (Hbw)
            Measures of central tendency (Usyg)
                Average (Usygb)
                Mean (Statistics) (Usygg)
            Deviation (Statistics) (Usyh)
                Standard deviation (Usyhs)
            Range (Statistics) (Usyr)
            Time series (Usyt)
            Trend (Statistics) (Usyv)

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