enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Norm-referenced test - Wikipedia

    en.wikipedia.org/wiki/Norm-referenced_test

    Assigning scores on such tests may be described as relative grading, marking on a curve or grading on a curve (AmE, CanE) (also referred to as curved grading, bell curving, or using grading curves). It is a method of assigning grades to the students in a class in such a way as to obtain or approach a pre-specified distribution of these grades ...

  3. Curve fitting - Wikipedia

    en.wikipedia.org/wiki/Curve_fitting

    Fitting of a noisy curve by an asymmetrical peak model, with an iterative process (Gauss–Newton algorithm with variable damping factor α).Curve fitting [1] [2] is the process of constructing a curve, or mathematical function, that has the best fit to a series of data points, [3] possibly subject to constraints.

  4. Genius (mathematics software) - Wikipedia

    en.wikipedia.org/wiki/Genius_(mathematics_software)

    Genius is aimed at mathematical experimentation rather than computationally intensive tasks. It is also very useful as just a calculator. The programming language is called GEL and aims to have a mathematically friendly syntax. The software comes with a command-line interface and a GUI, which uses the GTK+ libraries. The graphical version ...

  5. Receiver Operating Characteristic Curve Explorer and Tester

    en.wikipedia.org/wiki/Receiver_Operating...

    The AUC (area under the curve) of the ROC curve reflects the overall accuracy and the separation performance of the biomarker (or biomarkers), [3] and can be readily used to compare different biomarker combinations or models. [4] As a rule of thumb, the fewer the biomarkers that one uses to maximize the AUC of the ROC curve, the better.

  6. Coefficient of determination - Wikipedia

    en.wikipedia.org/wiki/Coefficient_of_determination

    Ordinary least squares regression of Okun's law.Since the regression line does not miss any of the points by very much, the R 2 of the regression is relatively high.. In statistics, the coefficient of determination, denoted R 2 or r 2 and pronounced "R squared", is the proportion of the variation in the dependent variable that is predictable from the independent variable(s).

  7. Canny edge detector - Wikipedia

    en.wikipedia.org/wiki/Canny_edge_detector

    For the gradient amplitude calculation, the old Canny edge detection algorithm uses the center in a small 2×2 neighborhood window to calculate the finite difference mean value to represent the gradient amplitude. This method is sensitive to noise and can easily detect false edges and lose real edges.

  8. ANOVA gauge R&R - Wikipedia

    en.wikipedia.org/wiki/ANOVA_gauge_R&R

    Test methods, how the devices are set up, the test fixtures, how the data is recorded, etc. Specification , the measurement is reported against a specification or a reference value. The range or the engineering tolerance does not affect the measurement, but is an important factor in evaluating the viability of the measurement system.

  9. TestU01 - Wikipedia

    en.wikipedia.org/wiki/TestU01

    When a specific test is applied to a sample of size n produced by an RNG, the p-value of the test usually will remain reasonable as the sample size increases until the sample size hits n 0, say. After that, the p-value diverges to 0 or 1 with exponential speed. Module 4 allows the researcher to study the interaction between a specific test and ...