Results 1 to 10 of about 709,012 (286)

Coherent Signal DOA Estimation and 3D Point Cloud Imaging Based on a Straight-Curved Hybrid L-Shaped Conformal Array [PDF]

open access: yesSensors
High-speed airborne platforms impose stringent aerodynamic constraints that restrict traditional planar antenna designs. Concurrently, multi-component echoes from extended targets and complex propagation environments induce strong signal coherence ...
Bowen Bie   +3 more
doaj   +2 more sources

Banach-Steinhaus theorem for linear relations on asymmetric normed spaces

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2022
We study the continuity of linear relations defined on asymmetric normed spaces with values in normed spaces. We give some geometric charactirization of these mappings.
K. Bouadjila, A. Tallab, E. Dahia
doaj   +1 more source

New Results on the Aggregation of Norms

open access: yesMathematics, 2021
It is a natural question if a Cartesian product of objects produces an object of the same type. For example, it is well known that a countable Cartesian product of metrizable topological spaces is metrizable.
Tatiana Pedraza   +1 more
doaj   +1 more source

L1-Norm Robust Regularized Extreme Learning Machine with Asymmetric C-Loss for Regression

open access: yesAxioms, 2023
Extreme learning machines (ELMs) have recently attracted significant attention due to their fast training speeds and good prediction effect. However, ELMs ignore the inherent distribution of the original samples, and they are prone to overfitting, which ...
Qing Wu, Fan Wang, Yu An, Ke Li
doaj   +1 more source

Synthesis of sparse linear arrays using reweighted gridless compressed sensing

open access: yesIET Microwaves, Antennas & Propagation, 2021
Pattern synthesis of the sparse linear array (SLA) has played an important role when the antenna size is extremely limited. Although grid‐based compressed sensing (CS) algorithms have been widely utilised to synthesise the SLA, the performance is greatly
Zihao Li, JuanJuan Cai, Chengpeng Hao
doaj   +1 more source

Grammaticalization of syntactic conflict resolution: Asymmetric constructions [PDF]

open access: yesJužnoslovenski Filolog, 2013
We consider Russian coordinative constructions with paired conjunctions, such as i…i ‘both…and’, ili…ili ‘either…or’, ni…ni ‘neither…nor’, ne tol'ko…no i ‘not only…but also’, ne…a ‘not…but’, etc.
Boguslavskij I.M.
doaj   +1 more source

Quantifying agreement between anatomical and functional interhemispheric correspondences in the resting brain. [PDF]

open access: yesPLoS ONE, 2012
The human brain is composed of two broadly symmetric cerebral hemispheres, with an abundance of reciprocal anatomical connections between homotopic locations.
Hang Joon Jo   +4 more
doaj   +1 more source

The margin of stability is affected differently when walking under quasi-random treadmill perturbations with or without full visual support [PDF]

open access: yesPeerJ
Background Sensory-motor perturbations have been widely used to assess astronauts’ balance in standing during pre-/post- spaceflight. However, balance control during walking, where most falls occur, was less studied in these astronauts.
Zhuo Wang, Haoyu Xie, Jung H. Chien
doaj   +2 more sources

Heterogeneous groups overcome the diffusion of responsibility problem in social norm enforcement.

open access: yesPLoS ONE, 2018
Social norms promote cooperation in everyday life because many people are willing to negatively sanction norm breakers at a cost to themselves. However, a norm violation may persist if only one person is required to sanction the norm breaker and everyone
Wojtek Przepiorka, Andreas Diekmann
doaj   +1 more source

A Scale Balanced Loss for Bounding Box Regression

open access: yesIEEE Access, 2020
Object detectors typically use bounding box regressors to improve the accuracy of object localization. Currently, the two types of bounding box regression loss are ℓn-norm-based and intersection over union (IoU)-based. However, we found that these
Degang Sun   +7 more
doaj   +1 more source

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