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Corona Data Systems, later renamed Cordata, was an American personal computer company. It was one of the earliest IBM PC compatible computer system companies. Manufacturing was primarily done by Daewoo of Korea, which became a major investor in the company and ultimately the owner.
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In statistics, ordinary least squares (OLS) is a type of linear least squares method for choosing the unknown parameters in a linear regression model (with fixed level-one [clarification needed] effects of a linear function of a set of explanatory variables) by the principle of least squares: minimizing the sum of the squares of the differences between the observed dependent variable (values ...
Control Data Corporation — United States: 1957: 1992: Broken up from 1988 to 1992; remainder is now Ceridian: Convergent Technologies — United States: 1979: 1988: Acquired by Unisys: Convex Computer — United States: 1982: 1995: Purchased by Hewlett-Packard: Corona Data Systems: Daewoo (1987–1993) United States: 1982: 1993: Acquired by ...
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OldVersion.com is an archive website that stores and distributes older versions of primarily Internet-related IBM PC compatible and Apple Macintosh freeware and shareware application software. Alex Levine and Igor Dolgalev [2] founded the site in 2001. [1] Levine created the site because "Companies make a lot of new versions.
The first term is the objective function from ordinary least squares (OLS) regression, corresponding to the residual sum of squares. The second term is a regularization term, not present in OLS, which penalizes large values. As a smooth finite dimensional problem is considered and it is possible to apply standard calculus tools.