Given a discrete optimization problem Z(c̃) = max{c̃′x : x ∈ X}, with objective coefficients c̃ chosen randomly from a distribution θ, we would like to evaluate the expected value Eθ(Z(c̃)) and the probability Pθ(xi (c̃) = k) where x ∗(c̃) is an optimal solution to Z(c̃). We call this the persistency problem for a discrete optimization problem under uncertain objective, and Pθ(xi (c̃) = k), the persist...

We use a superb five-hour sequence of 900 solar images taken at La Palma to study long-duration persistence in the solar granulation, in the context of the long-lived “intergranular holes” discovered by Roudier et al. (1997) and the contention that these mark sites of convective downflow plumes. We develop a procedure to locate “persistency regions” that contain granular brightness maxima or mi...

Objective: Persistent infection with carcinogenic human papillomavirus (HPV) causes cervical intraepithelial neoplasia (CIN) which, is commonly treated using the loop electrical excision procedure (LEEP). We investigated the factors that associate with the persistency of HPV after LEEP in patients with CIN. Methods: We retrospectively analyzed 860 CIN patients who underwent LEEP. All patients h...

The development of data centric applications should be performed in a high-level and transparent way. In particular, aspects concerning the persistency and distribution of business objects should not influence or restrict the application design. Furthermore applications should be platform independent and should be able to exchange data independently of their programming language origin. There a...

in this investigation 13699 data related to milk production from 2716 holstein first calving and daughter from 167 sire cows were analyzed based on random regression model (rr/cf) and reml method incomplete lactating (5-90 days) and (5-120 days) in correlations to complete lactating were 0.67 and 0.72, respectively with progress in complete 5-240 day was 0.91 the correlation value for lactating...

The paper presents the generalized persistency of excitation conditions. They are not only valid for much broader range of applications than their classical counterparts but also elegantly prove the validity of the latter. The novelty and the significance of the approach presented in this publication is due to employing the time averaging technique.

The C1 interior of the set of all diffeomorphisms satisfying Lewowicz’s persistency is characterized as the set of all diffeomorphisms satisfying Axiom A and the strong transversality condition. In [5], Lewowicz introduced a notion of persistency for a homeomorphism of a compact metric space X , and it is remarked that persistence is a weaker property than topological stability when X is a mani...

In this paper, we show that for any independence system, the problem of finding a persistency partition of the ground set and that of finding a maximum weight independent set are polynomially equivalent.

Modeling extended lactations for the US Holsteins is useful because a majority (>55%) of the cows in the present population produce lactations longer than 305 d. In this study, 9 empirical and mechanistic models were compared for their suitability for modeling 305-d and 999-d lactations of US Holsteins. A pooled data set of 4,266,597 test-day yields from 427,657 (305-d complete) lactation recor...