Results 21 to 30 of about 969,090 (262)
Tight Guarantees for Static Threshold Policies in the Prophet Secretary Problem [PDF]
arXiv, 2021 In the prophet secretary problem, $n$ values are drawn independently from known distributions, and presented in a uniformly random order. A decision-maker must accept or reject each value when it is presented, and may accept at most $k$ values in total. The objective is to maximize the expected sum of accepted values.
arxiv
Predicting Relative Thresholds for Object Oriented Metrics [PDF]
arXiv, 2021 Object-oriented software metrics provide a numerical characterization of software quality. They have also been used in the assessment and identification of technical debt. However, metrics generally need to be used with thresholds as reference points that help to interpret their values properly and objectively. The problem is that, while there are many
arxiv
Feature-Adaptive Interactive Thresholding of Large 3D Volumes [PDF]
arXiv, 2022 Thresholding is the most widely used segmentation method in volumetric image processing, and its pointwise nature makes it attractive for the fast handling of large three-dimensional samples. However, global thresholds often do not properly extract components in the presence of artifacts, measurement noise or grayscale value fluctuations.
arxiv
One-Bit Covariance Reconstruction with Non-zero Thresholds: Algorithm and Performance Analysis [PDF]
arXiv, 2023 Covariance matrix reconstruction is a topic of great significance in the field of one-bit signal processing and has numerous practical applications. Despite its importance, the conventional arcsine law with zero threshold is incapable of recovering the diagonal elements of the covariance matrix.
arxiv
Journal of Applied Oral ScienceTo calculate root canal volume and surface area in microCT images, an image segmentation by selecting threshold values is required, which can be determined by visual or automatic methods. Visual determination is influenced by the operator's visual acuity,
Polyane Mazucatto Queiroz +4 more
doaj +1 more source
Another look at threshold phenomena for random cones [PDF]
arXiv, 2021 In stochastic geometry there are several instances of threshold phenomena in high dimensions: the behavior of a limit of some expectation changes abruptly when some parameter passes through a critical value. This note continues the investigation of the expected face numbers of polyhedral random cones, when the dimension of the ambient space increases ...
arxiv
Shock and Vibration, 2022 Based on Laplace transform and Hurwitz stability criterion, the system characteristic equation and algebraic stability criterion of the two degree-of-freedom angular free vibration of dry gas seal are derived. The effects of rotational inertia, stiffness
Liming Teng +4 more
doaj +1 more source
FEBS Letters, EarlyView.Low‐density lipoprotein receptor‐related protein 6 (LRP6) is a key receptor for the Wnt antagonist Dickkopf1 (DKK1). DKK1 protein expression is induced in a bleomycin (BLM)‐induced lung injury model. We show that DKK1 induces proinflammatory and profibrotic genes in lung fibroblasts.
Eun‐Ah Sung +6 more
wiley +1 more source
Sojourn Times and the Fragility Index [PDF]
, 2011 We investigate the sojourn time above a high threshold of a continuous stochastic process Y on [0,1]. It turns out that the limit, as the threshold increases, of the expected sojourn time given that it is positive, exists if the copula process corresponding to Y is in the functional domain of attraction of of an extreme value process.
arxiv +1 more source
Geochimica Brasiliensis, 2018 Geochemical survey in the Vermelho (VSB) and Sororó (SSB) sub-basins of the Itacaiúnas basin in southeastern Amazonian region has shown that the physical-chemical parameters of stream water do not display accentuated variations between the rainy and dry ...
Gabriel Negreiros Salomão +8 more
doaj +1 more source