Results 31 to 40 of about 10,377,222 (186)

Double Attention for Multi-Label Image Classification

IEEE Access, 2020
Multi-label image classification is an essential task in image processing. How to improve the correlation between labels by learning multi-scale features from images is a very challenging problem.
Haiying Zhao, Wei Zhou, Xiaogang Hou, Hui Zhu   +3 more
doaj   +1 more source

Pilot Design based on Binary Code Multi-pilot Search

Guangtongxin yanjiu, 2022
To solve the sparse channel estimation problem in Orthogonal Frequency Division Multiplexing (OFDM) systems, this paper presents a pilot design algorithm based on multi-pilot parallel searching and binary coding.
Hai-yan HUANG, Jun-jie ZHU, Zhi-an ZHENG, Ming-fang HE, Jian-jian LIU   +4 more
doaj   +3 more sources

Sparse Channel Estimation for Massive MIMO-OFDM Systems Over Time-Varying Channels

IEEE Access, 2018
For downlink orthogonal frequency division multiplexing-based massive multiple-input-multiple-output transmission over the time-varying channel, channel estimation is very challenging due to numerous channel coefficients to be estimated.
Qibo Qin, Lin Gui, Bo Gong, Sheng Luo
doaj   +1 more source

TraceMyFish D2.3 Pilot Design and Piloting plan (v1.0)

, 2022
The objective of WP2 “Tracking hazards and potential measures” is define and outline the piloting settings so as to track the potential hazards across the Bluebio value chain affecting food quality and safety along three crucial value chains in Europe, and more precisely: 1) the Atlantic salmon value chain, 2) the Atlantic whitefish value chain, and 3)
George-John Nychas, Panagiotis Tsakanikas, Anastasia Lytou, Jørgen Lerfall, Anita Nordeng Jakobsen, María Gudjónsdóttir, Hildur Inga Sveinsdóttir, Nette schultz   +7 more
openaire   +1 more source

Pilot-Efficient Channel Estimation for RIS-Aided Wireless Communication Systems: A Systematization

IEEE Open Journal of the Communications Society
Passive reconfigurable intelligent surfaces (RIS) can reshape the propagation environment with negligible radio-frequency power, yet they introduce a dominant channel-acquisition bottleneck, because the cascaded channel to be learned is high-dimensional ...
Anas Talib, Yichuang Sun, Oluyomi Simpson   +2 more
doaj   +1 more source

A Bayesian approach to pilot-pivotal trials for bioequivalence assessment

BMC Medical Research Methodology, 2023
Background To demonstrate bioequivalence between two drug formulations, a pilot trial is often conducted prior to a pivotal trial to assess feasibility and gain preliminary information about the treatment effect. Due to the limited sample size, it is not
Duo Lv, Michael J. Grayling, Xinyue Zhang, Qingwei Zhao, Haiyan Zheng   +4 more
doaj   +1 more source

Conditioning-Centric Design of RIS-Assisted Uplink Channel Estimation Under Heterogeneous Propagation

IEEE Open Journal of the Communications Society
Reconfigurable intelligent surfaces (RIS) allow programmable wireless propagation but add intrinsic problems in the estimation of the uplink channel because of high-dimensional cascaded channels, limited pilot budgets, heterogeneous propagation, and ...
Shweta Singh, Kumar Sekhar Roy, Manish Kumar, Rahul Kumar   +3 more
doaj   +1 more source

TraceMyFish D2.4 Pilot Design and Piloting plan (v2.0)

, 2023
The objective of WP2 entitled as “Tracking hazards and potential measures” is to define and outline the corresponding settings of all three pilots of TMF project, so as to enable tracing the potential hazards across the Bluebio value chain affecting food quality and safety along three crucial value chains in Europe, and more precisely: 1) the Atlantic ...
George-John Nychas, Jørgen Lerfall, Hildur Inga Sveinsdottir, Anastasia Lytou, Sine Marie Moen Kobbenes, Anita Nordeng Jakobsen, Lemonia Fengou, Panagiotis Tsakanikas, Nette Schultz, Alessia del Genio, María Guðjónsdóttir   +10 more
openaire   +1 more source

Pilot Design and Piloting plan (v1.0)

, 2022
The objective of WP2 “Tracking hazards and potential measures” is define and outline the piloting settings so as to track the potential hazards across the Bluebio value chain affecting food quality and safety along three crucial value chains in Europe, and more precisely: 1) the Atlantic salmon value chain, 2) the Atlantic whitefish value chain, and 3)
Nychas, George-John, Lerfall, Jørgen, Jakobsen, Anita Nordeng, Guðjónsdóttir, María, Sveinsdottir, Hildur Inga, Shultz, Nette   +5 more
openaire   +1 more source

Pilot Implementation: Testing Human-Work Interaction Designs

, 2021
Pilot implementations are field tests of properly engineered, yet unfinished, systems. In contrast to lab tests, the users in a pilot implementation use the system for performing real work. In contrast to full-scale implementations, the objective of a pilot implementation is to learn.
Morten Hertzum, Torkil Clemmensen, Barbara Rita Barricelli, Pedro F. Campos, Frederica Gonçalves, José L. Abdelnour-Nocera, Ganesh Bhutkar, Arminda Guerra Lopes   +7 more
openaire   +5 more sources