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  2. Regularized least squares - Wikipedia

    en.wikipedia.org/wiki/Regularized_least_squares

    Regularized least squares (RLS) is a family of methods for solving the least-squares problem while using regularization to further constrain the resulting solution. RLS is used for two main reasons. The first comes up when the number of variables in the linear system exceeds the number of observations.

  3. Recursive least squares filter - Wikipedia

    en.wikipedia.org/wiki/Recursive_least_squares_filter

    The = case is referred to as the growing window RLS algorithm. In practice, λ {\displaystyle \lambda } is usually chosen between 0.98 and 1. [ 1 ] By using type-II maximum likelihood estimation the optimal λ {\displaystyle \lambda } can be estimated from a set of data.

  4. PDF - Wikipedia

    en.wikipedia.org/wiki/PDF

    The file starts with a header containing a magic number (as a readable string) and the version of the format, for example %PDF-1.7. The format is a subset of a COS ("Carousel" Object Structure) format. [24] A COS tree file consists primarily of objects, of which there are nine types: [17] Boolean values, representing true or false; Real numbers ...

  5. List of free and open-source software packages - Wikipedia

    en.wikipedia.org/wiki/List_of_free_and_open...

    This is a list of free and open-source software (FOSS) packages, computer software licensed under free software licenses and open-source licenses.Software that fits the Free Software Definition may be more appropriately called free software; the GNU project in particular objects to their works being referred to as open-source. [1]

  6. Teens are turning to TikTok for sex ed. Here's what they're ...

    www.aol.com/lifestyle/teens-turning-tiktok-sex...

    Across the country, students are turning to social media to get their sex ed questions answered. (Collage: Getty Images/Nathalie Cruz for Yahoo Life)

  7. TeXworks - Wikipedia

    en.wikipedia.org/wiki/TeXworks

    [6] [7] One limitation of TeXworks is, that it does not by itself support multi-stage typesetting, like, for example, PNG or SVG output via intermediate DVI. This is a design choice, because such workflows are considered too advanced for the beginning user. [8] The user has to write a shell or batch script to use such workflows with TeXworks. [9]

  8. How False Content Spreads Easily on TikTok - AOL

    www.aol.com/news/false-content-spreads-easily...

    What is the most visited site on the internet? It's TikTok. With more than 1 billion monthly users, the platform isn't just viral lip-sync videos.

  9. History of PDF - Wikipedia

    en.wikipedia.org/wiki/History_of_PDF

    The final revised documentation for PDF 1.7 was approved by ISO Technical Committee 171 in January 2008 and published as ISO 32000-1:2008 on July 1, 2008, and titled Document management – Portable document format – Part 1: PDF 1.7. ISO 32000-1:2008 is the first ISO standard for full function PDF.