Results 241 to 250 of about 60,798 (279)

Exploring Dual-Polarimetic Descriptors for Sentinel-L Based Ship Detection

IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018
This study addresses the use of dual-polarimetric descriptors for ship detection and characterization from Synthetic Aperture Radar (SAR) data. Ship detection is usually performed independently on each polarization channel and the results are merged subsequently.
Ramona Pelich, Carlos Lopez-Martinez, Marco Chini, Renaud Hostache, Patrick Matgen, Philippe Ries, Gerd Eiden   +6 more
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Local Feature Descriptor Learning with a Dual Hard Sampling Strategy

2019 IEEE International Symposium on Multimedia (ISM), 2019
Local feature descriptor learning based on Convolutional Neural Network (CNN) has demonstrated its capability to generate descriptors with high quality. While extensive studies focused on mining hard non-matching examples to improve descriptor learning performance, a random sampling strategy is adopted for matching examples.
Song Wang, Xin Guo, Yun Tie, Lin Qi, Ling Guan   +4 more
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Why is the dual descriptor a more accurate local reactivity descriptor than Fukui functions?

Journal of Mathematical Chemistry, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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A Compact Binary Aggregated Descriptor via Dual Selection for Visual Search

Proceedings of the 24th ACM international conference on Multimedia, 2016
To achieve high retrieval accuracy over a large scale image/video dataset, recent research efforts have demonstrated that employing extremely high-dimensional descriptors such as the Fisher Vector (FV) and the Vector of Locally Aggregated Descriptors (VLAD) can yield good performance.
Yuwei Wu, Zhe Wang, Junsong Yuan, Lingyu Duan   +3 more
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Image retrieval using dual-weighted deep feature descriptor

International Journal of Machine Learning and Cybernetics, 2023
Zhou Lu, Guang-Hai Liu, Fen Lu, Bo-Jian Zhang   +3 more
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Nucleophilicity and electrophilicity of silylenes from a molecular electrostatic potential and dual descriptor perspectives

Chemical Physics Letters, 2009
Abstract Nucleophilicity and elecrophilicity of mono and disubstituted silylenes are analyzed using the molecular electrostatic potential and the dual descriptor Δ f ( r → ) , defined within the so called conceptual DFT. A set of 32 compounds has been chosen which can be classified into 4 groups or families based on a linear ...
Correa Correa, José Vicente, Jaque Olmedo, Pablo César, Oláh, Julianna, Toro Labbé, Alejandro, Geerlings, Paul   +4 more
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Dual linear quadratic optimal control for two-point boundary value descriptor systems

International Journal of Systems Science, 1991
The dual linear quadratic opiimal control problem for the two-point boundary value case of discrete descriptor systems is investigated. It is shown that, in the case where the cost functional docs not have cross terms, the optimal control law can be expressed as an affine function of the stale of the non-causal subsystem, while the optimal cost-to-go ...
C. Georgiou, G. P. Mantas, N. J. Krikelis   +2 more
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Local chemical potential, local hardness, and dual descriptors in temperature dependent chemical reactivity theory

Physical Chemistry Chemical Physics, 2017
From the definition of a local chemical potential, well-behaved expressions for the local hardness and the dual descriptors are derived.
Marco Franco-Pérez, Paul W. Ayers, José L. Gázquez, Alberto Vela   +3 more
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Descriptor‐Driven Design of Dual‐Active‐Site Electrocatalysts for Ammonia Synthesis

Advanced Energy Materials
Abstract The electrocatalytic nitrate reduction reaction (NO 3 RR) offers a sustainable route to convert nitrate (NO 3 − ) pollutants into value‐added ammonia (NH 3 ). However,
Chaoqun Ma, Fukai Feng, Huaifang Zhang, Gang Lin, Jing Xia, Xiaojuan Zhu, Xiao Ma, Caihong He, Sumei Han, Yingxue Du, Wenbin Cao, Xiangmin Meng, Song Yang, Lijie Zhu, An‐Liang Wang, Qipeng Lu   +15 more
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The dual descriptor: Working equations applied on electronic open-shell molecular systems

Chemical Physics Letters, 2011
Two hierarchical working equations to calculate the dual descriptor for electronic open-shell systems were deduced based on the formalism of the Conceptual Spin-Polarized Density-Functional Theory (SP-DFT). NO and O2 molecules were analyzed by taking into account their ground state multiplicities. The NO molecule has been used as a typical conventional
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