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  2. Least mean squares filter - Wikipedia

    en.wikipedia.org/wiki/Least_mean_squares_filter

    This cost function (()) is the mean square error, and it is minimized by the LMS. This is where the LMS gets its name. Applying steepest descent means to take the partial derivatives with respect to the individual entries of the filter coefficient (weight) vector

  3. Minimum mean square error - Wikipedia

    en.wikipedia.org/wiki/Minimum_mean_square_error

    Standard method like Gauss elimination can be used to solve the matrix equation for .A more numerically stable method is provided by QR decomposition method. Since the matrix is a symmetric positive definite matrix, can be solved twice as fast with the Cholesky decomposition, while for large sparse systems conjugate gradient method is more effective.

  4. Runcorn signal box - Wikipedia

    en.wikipedia.org/wiki/Runcorn_signal_box

    The signal box was designed and built by the London, Midland and Scottish Railway (LMS) to replace an earlier timber signal box that stood on a gantry. It was opened in January 1940. In the years approaching the Second World War, and in the early years of the war, precautions were taken to protect existing signal boxes from enemy bombing.

  5. File:Typical signal box layout.svg - Wikipedia

    en.wikipedia.org/wiki/File:Typical_signal_box...

    You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.

  6. LMS color space - Wikipedia

    en.wikipedia.org/wiki/LMS_color_space

    LMS (long, medium, short), is a color space which represents the response of the three types of cones of the human eye, named for their responsivity (sensitivity) peaks at long, medium, and short wavelengths.

  7. Category:Signal boxes - Wikipedia

    en.wikipedia.org/wiki/Category:Signal_boxes

    Download QR code; Print/export ... Pages in category "Signal boxes" ... out of 4 total. This list may not reflect recent changes. Signal box; E. Erie Railroad Signal ...

  8. D2L - Wikipedia

    en.wikipedia.org/wiki/D2L

    D2L (or Desire2Learn) is a Canada-based global software company with offices in Australia, Brazil, Europe, India, Singapore, and the United States.. D2L is the developer of the Brightspace learning management system, a cloud-based software suite used by schools, higher educational institutions, and businesses for online and blended classroom learning.

  9. Learning object metadata - Wikipedia

    en.wikipedia.org/wiki/Learning_object_metadata

    The data model specifies that some elements may be repeated either individually or as a group; for example, although the elements 9.2 (Description) and 9.1 (Purpose) can only occur once within each instance of the Classification container element, the Classification element may be repeated - thus allowing many descriptions for different purposes.