Results 41 to 50 of about 2,043,917 (301)

Comparison of RetinaNet-Based Single-Target Cascading and Multi-Target Detection Models for Administrative Regions in Network Map Pictures

open access: yesSensors, 2022
There is a critical need for detection of administrative regions through network map pictures in map censorship tasks, which can be implemented by target detection technology.
Kaixuan Du   +6 more
doaj   +1 more source

Improving Performance of M-to-N Processing and Data Redistribution in In Transit Analysis and Visualization [PDF]

open access: yes, 2020
In an in transit setting, a parallel data producer, such as a numerical simulation, runs on one set of ranks M, while a data consumer, such as a parallel visualization application, runs on a different set of ranks N. One of the central challenges in this
Bethel, E Wes   +8 more
core  

Hopf differentials and smoothing Sobolev homeomorphisms [PDF]

open access: yes, 2010
We prove that planar homeomorphisms can be approximated by diffeomorphisms in the Sobolev space $W^{1,2}$ and in the Royden algebra. As an application, we show that every discrete and open planar mapping with a holomorphic Hopf differential is harmonic ...
Iwaniec, Tadeusz   +2 more
core   +3 more sources

REFINED SIMULATION OF SATELLITE LASER ALTIMETER FULL ECHO WAVEFORM [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
The return waveform of satellite laser altimeter plays vital role in the satellite parameters designation, data processing and application. In this paper, a method of refined full waveform simulation is proposed based on the reflectivity of the ground ...
H. Men   +8 more
doaj   +1 more source

Applications of Bundle Map Theory [PDF]

open access: yesTransactions of the American Mathematical Society, 1972
This paper observes that the space of principal bundle maps into the universal bundle is contractible. This fact is added to I. M. James’ Bundle map theory which is slightly generalized here. Then applications yield new results about actions on manifolds, the evaluation map, evaluation subgroups of classifying spaces of topological groups, vector ...
openaire   +1 more source

Feature Extraction Based Multi-Structure Manifold Embedding for Hyperspectral Remote Sensing Image Classification

open access: yesIEEE Access, 2017
Hyperspectral remote sensing image is a typical high-dimensional data with a large number of redundant information, which will impact the classification accuracy.
Yuhang Gan   +5 more
doaj   +1 more source

The Geometric Calibration and Validation for The ZY3-02 Satellite Optical Image [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
Chinese ZY3-02 satellite, which is the second of ZY3 series satellites, was launched in May 30th 2016 for complementing the mapping and earth observation.
X. Tang, X. Zhu, X. Zhu
doaj   +1 more source

Application of AIS Technology to Forest Mapping [PDF]

open access: yes, 1985
Concerns about environmental effects of large scale deforestation have prompted efforts to map forests over large areas using various remote sensing data and image processing techniques. Basic research on the spectral characteristics of forest vegetation
Star, J. L., Yool, S. R.
core   +1 more source

A finite presentation for the hyperelliptic mapping class group of a nonorientable surface [PDF]

open access: yes, 2015
We obtain a simple presentation of the hyperelliptic mapping class group $M^h(N)$ of a nonorientable surface N. As an application we compute the first homology group of $M^h(N)$ with coefficients in $H_1(N;Z)$.Comment: Updated ...
Stukow, Michal
core   +3 more sources

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

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