Results 151 to 160 of about 5,774,152 (370)
Eigenvalue Localization for Symmetric Positive Toeplitz Matrices
AxiomsGiven a real symmetric matrix, several inclusion and exclusion intervals containing its eigenvalues can be given. In this paper, for symmetric positive Toeplitz matrices, we provide an inclusion interval and, under an additional hypothesis, we also give ...
Juan M. Peña
doaj +1 more source
On positive-definite integral kernels and a related quadratic form. [PDF]
, 1958 Joshua Chover, Jacob J. Feldman
openalex +1 more source
Advanced Intelligent Systems, EarlyView.Image classification plays a pivotal role in biomedical image analysis. Herein, it is shown that large multimodal models, such as GPT‐4, achieve superior performance in one‐shot learning, generalization, interpretability, and text‐driven image classification. Applications span tissue, cell type, cellular state, and disease classification, outperforming
Wenpin Hou +4 more
wiley +1 more source
On Positive Definiteness of Some Functions
Journal of Multivariate Analysis, 2000 AbstractLet ρ be a nonnegative homogeneous function on Rn. General structure of the set of numerical pairs (δ, λ), for which the function (1−ρλ(x))δ+ is positive definite on Rn is investigated; a criterion for positive definiteness of this function is given in terms of completely monotonic functions; a connection of this problem with the Schoenberg ...
openaire +2 more sources
Inversion of symmetric coefficient matrix of positive-definite quadratic form [PDF]
, 1957 Thomas C. Doyle
openalex +1 more source
Advanced Intelligent Systems, EarlyView.In this study, a deep reinforcement learning framework with multi‐line‐of‐sight guidance is proposed. An augmented‐twin delayed deep deterministic policy gradient algorithm adapts to attitude changes efficiently, reducing computational costs. Simulations show 30.8% faster training and mitigates rudder/exergy issues, validated by an X‐rudder autonomous ...
Chengren Yuan +5 more
wiley +1 more source
Treecreeper Drone: Adaptive Mechanism for Passive Tree Trunk Perching
Advanced Intelligent Systems, EarlyView.Taking inspiration from treecreepers, a passively triggered aerial robot that can reliably perch on vertical tree trunks is presented. The friction‐based approach combines a microspine array with a tail‐like support, and then validates via dynamic analyses and flight experiments, ensuring stable performance across trunk diameters and bark textures ...
Haichuan Li +2 more
wiley +1 more source
Positive definiteness of paired symmetric tensors and elasticity tensors [PDF]
Journal of Computational and Applied Mathematics, 2017 Zhenghai Huang, L. Qi
semanticscholar +1 more source