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  2. Data compression ratio - Wikipedia

    en.wikipedia.org/wiki/Data_compression_ratio

    Thus, a representation that compresses the storage size of a file from 10 MB to 2 MB yields a space saving of 1 - 2/10 = 0.8, often notated as a percentage, 80%. For signals of indefinite size, such as streaming audio and video, the compression ratio is defined in terms of uncompressed and compressed data rates instead of data sizes:

  3. Data compression - Wikipedia

    en.wikipedia.org/wiki/Data_compression

    This is a basic example of run-length encoding; there are many schemes to reduce file size by eliminating redundancy. The Lempel–Ziv (LZ) compression methods are among the most popular algorithms for lossless storage. [6] DEFLATE is a variation on LZ optimized for decompression speed and compression ratio, [7] but compression

  4. Elastix (image registration) - Wikipedia

    en.wikipedia.org/wiki/Elastix_(image_registration)

    The elastix software also offers other features that can be employed to speed up the registration procedure and to provide more advanced algorithms to the end-users. Some examples are the introduction of blur and Gaussian pyramid to reduce data complexity, and multi-image and multi-metric framework to deal with more complex applications. [8]

  5. Discrete cosine transform - Wikipedia

    en.wikipedia.org/wiki/Discrete_cosine_transform

    A discrete cosine transform (DCT) expresses a finite sequence of data points in terms of a sum of cosine functions oscillating at different frequencies.The DCT, first proposed by Nasir Ahmed in 1972, is a widely used transformation technique in signal processing and data compression.

  6. MATLAB - Wikipedia

    en.wikipedia.org/wiki/MATLAB

    MATLAB (an abbreviation of "MATrix LABoratory" [22]) is a proprietary multi-paradigm programming language and numeric computing environment developed by MathWorks.MATLAB allows matrix manipulations, plotting of functions and data, implementation of algorithms, creation of user interfaces, and interfacing with programs written in other languages.

  7. List of finite element software packages - Wikipedia

    en.wikipedia.org/wiki/List_of_finite_element...

    Full API for Java and, through add-on product, Matlab Runtime parsed mathematical expression in input files Fully scriptable in as m-file Matlab scripts and the GUI supports exporting models in script format automatic differentiation: Yes Yes Yes Forward-mode for Jacobian computation, symbolic differentiation capabilities multiphysics:

  8. Memoization - Wikipedia

    en.wikipedia.org/wiki/Memoization

    The cost to set up the functional call stack frame. The cost to compare n to 0. The cost to subtract 1 from n. The cost to set up the recursive call stack frame. (As above.) The cost to multiply the result of the recursive call to factorial by n. The cost to store the return result so that it may be used by the calling context.

  9. Particle swarm optimization - Wikipedia

    en.wikipedia.org/wiki/Particle_swarm_optimization

    The values b lo and b up represent the lower and upper boundaries of the search-space respectively. The w parameter is the inertia weight. The w parameter is the inertia weight. The parameters φ p and φ g are often called cognitive coefficient and social coefficient.