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On the Stability of Factorization Factors
1987The present chapter is devoted to the study of the behaviour of the factorization factors under small perturbations of the matrix function G. Here we encounter another qualitative difference between the matrix case (n > 1) and the scalar one (n = 1). It appears that the partial indices of a matrix function and the factorization factors G± are unstable,
Georgii S. Litvinchuk +1 more
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The Journal of Portfolio Management, 2017
It is common practice to refer to a factor premium’s current valuation when assessing its attractiveness—in effect using a single-value-factor model to gauge whether the factor is rich, fairly valued, or cheap. Meanwhile, studies have investigated how some factor premia are exposed to other factor premia in order to characterize their behavior over ...
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It is common practice to refer to a factor premium’s current valuation when assessing its attractiveness—in effect using a single-value-factor model to gauge whether the factor is rich, fairly valued, or cheap. Meanwhile, studies have investigated how some factor premia are exposed to other factor premia in order to characterize their behavior over ...
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The Journal of Psychology, 1966
(1966). Factors and Factor Analyses. The Journal of Psychology: Vol. 64, No. 2, pp. 159-166.
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(1966). Factors and Factor Analyses. The Journal of Psychology: Vol. 64, No. 2, pp. 159-166.
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Antihemophilic Factor (Factor VIII)
Annals of Internal Medicine, 1978Antihemophilic factor (Factor VIII) is an agent in normal plasma that corrects the coagulative defect of classic hemophillia. The plasma of hemophiliacs contains normal amounts of a variant of antihemophilic factor deficient in clot-promoting properties. In contrast, von Willebrand's disease is usually associated with a true deficiency of this protein.
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Implicit Regularization in Matrix Factorization
Information Theory and Applications Workshop, 2017We study implicit regularization when optimizing an underdetermined quadratic objective over a matrix $X$ with gradient descent on a factorization of X.
Suriya Gunasekar +4 more
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The Factors in Factoring Behavior
Psychometrika, 1951Twenty years have now elapsed since Professor Thurstone’s ingenuity pulled the factor problem out of its tetrad difference quagmire. Most of us have watched Thurstone’s brain-child grow. One might say that the fledgling was so precocious as to reach maturity during the first ten years of its life.
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Journal of the London Mathematical Society, 1998
A noninjective bounded-to-one factor map from an irreducible shift of finite type onto a sofic system can be factored as a composition of other such maps in only finitely many ways (up to isomorphism). This generalizes to factor maps from systems with canonical coordinates to finitely presented dynamical systems.
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A noninjective bounded-to-one factor map from an irreducible shift of finite type onto a sofic system can be factored as a composition of other such maps in only finitely many ways (up to isomorphism). This generalizes to factor maps from systems with canonical coordinates to finitely presented dynamical systems.
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Polar Factorization and Monotone Rearrangement of Vector-Valued Functions
, 1991Given a probability space (X, p) and a bounded domain R in Rd equipped with the Lebesgue measure 1 . I (normalized so that 10 I = I ), it is shown (under additional technical assumptions on X and Q) that for every vector-valued function u E Lp(X, p; Rd ...
Y. Brenier
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Growth Factors: A scattering of factors
Current Biology, 1994Hepatocyte growth factor/scatter factor is a multifunctional growth factor with varied properties: more and more polypeptide factors are being discovered that share these characteristics.
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ACM SIGCHI Bulletin, 1986
The Status of the HFS HCI Standards Committee is reported on in a separate article by Paul Reed of AT&T Bell Laboratories, the vice-chair of that committee. It describes the background, status and approach being followed by that committee in its attempt to develop meaningful standards for user interfaces and the development of user interfaces ...
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The Status of the HFS HCI Standards Committee is reported on in a separate article by Paul Reed of AT&T Bell Laboratories, the vice-chair of that committee. It describes the background, status and approach being followed by that committee in its attempt to develop meaningful standards for user interfaces and the development of user interfaces ...
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