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The process that led to the algorithm recognizes several important steps. In 1931, Andrei Kolmogorov introduced the differential equations corresponding to the time-evolution of stochastic processes that proceed by jumps, today known as Kolmogorov equations (Markov jump process) (a simplified version is known as master equation in the natural sciences).
The origins of SSA and, more generally, of subspace-based methods for signal processing, go back to the eighteenth century (Prony's method).A key development was the formulation of the spectral decomposition of the covariance operator of stochastic processes by Kari Karhunen and Michel Loève in the late 1940s (Loève, 1945; Karhunen, 1947).
1945 - Federal Insurance Contributions Act, Pub. L. 78–495; 1945 - Revenue Act of 1945, Pub. L. 79–214; 1946 - Social Security Amendments of 1946, Pub. L. 79–719; 1947 - Social Security Amendments of 1947, Pub. L. 80–379; 1948 - Provision for Exclusion of Certain Newspaper and Magazine Vendors from Social Security Coverage, Pub. L. 80–492
The United States Social Security Administration (SSA) [2] is an independent agency of the U.S. federal government that administers Social Security, a social insurance program consisting of retirement, disability and survivor benefits.
The Social Security Administration's press office provided comments after the initial publication of this story, stating that "state and local government employers are required to disclose ...
Social Security Act of 1935; Other short titles: Social Security Act: Long title: An Act to provide for the general welfare by establishing a system of Federal old-age benefits, and by enabling the several States to make more adequate provision for aged persons, dependent and crippled children, maternal and child welfare, public health, and the administration of their unemployment laws; to ...
Omnicom is buying Interpublic Group in a stock-for-stock deal that will create the largest ad agency in the world with combined annual revenue of almost $26 billion. The names may be unfamiliar to ...
In an interview, Kennedy explained that in writing Freedom from Fear he focused on synthesizing existing scholarship and did not travel to archives for research. [11] Chapter manuscripts for Kennedy's volume met Woodward's resounding approval, though in July 1998 he advised Kennedy to shorten certain portions of the nearly 1,000-page manuscript ...