We propose a penalized likelihood approach in hidden Markov models (HMMs) to perform automated variable selection. To account for potential large number of covariates, which also may be substantially correlated, we consider the elastic net penalty containing LASSO and ridge as special cases. By quadratically approximating non-differentiable penalty, ensure that can maximized numerically. The fe...

We prove that the skein categories of Walker–Johnson-Freyd satisfy excision. This allows us to conclude are k-linear factorisation homology and taking free cocompletion recovers locally finitely presentable homology. An application this is algebra a punctured surface related any quantum group with generic parameter gives quantisation associated character variety.

We introduce and describe the 2-category Grt♭ of Grothendieck categories flat morphisms between them. First, we show that tensor product locally presentable linear ⊠ restricts nicely to Grt♭. Then, characterize exponentiable objects with respect ⊠: these are continuous categories. In particular, finitely exponentiable. Consequently, have that, for a quasi-compact quasi-separated scheme X, categ...

  Semidefinite optimization relaxations are among the widely used approaches to find global optimal or approximate solutions for many nonconvex problems. Here, we consider a specific quadratically constrained quadratic problem with an additional linear constraint. We prove that under certain conditions the semidefinite relaxation approach enables us to find a global optimal solution of the unde...

The study was conducted to determine the effects of chitosan on the concentrations of GH and IGF-I in serum and small intestinal morphological structure of piglets, in order to evaluate the regulating action of chitosan on weaned pig growth through endocrine and intestinal morphological approaches. A total of 180 weaned pigs (35 d of age; 11.56±1.61 kg of body weight) were selected and assigned...

Performance and carcass characteristics were evaluated using five concentrations of condensed corn distillers solubles (CCDS) replacing steam-flaked corn (SFC) and urea in finishing diets of crossbred steers (initial BW = 399 ± 27 kg). Concentrations of CCDS were: 0, 9, 18, 27, or 36% CCDS on a DM basis. Urea and soybean meal were included in all diets to meet or exceed NRC requirements for met...