A Specific Task-oriented Semantic Image Communication System for substation patrol inspection

January 9, 2023

| | | |

Computer Science
Electrical Engineering and Systems Science
Computer Vision and Pattern Recognition
Artificial Intelligence
Image and Video Processing
Intelligent inspection robots are widely used in substation patrol inspection, which can help check potential safety hazards by patrolling the substation and sending back scene images. However, when patrolling some marginal areas with weak ...

High-resolution Power Doppler Using Null Subtraction Imaging

January 9, 2023

| | | | |

Electrical Engineering and Systems Science
Signal Processing
To improve the spatial resolution of power Doppler (PD) imaging, we explored null subtraction imaging (NSI) as an alternative beamforming technique to delay-and-sum (DAS). NSI is a nonlinear beamforming approach that uses three different ap...

An explicit presentation of the centre of the restricted rational Cherednik algebra

January 9, 2023

Mathematics
Representation Theory
In this paper we give an explicit presentation of the centre of the restricted rational Cherednik algebra Hc(SnZ/Z)\overline{H}_c(S_n\wr\mathbb{Z}/\ell\mathbb{Z}) for a particular choice of parameter cc. More precisely, we describe the centre of ...

Propagation of anisotropic Gabor wave front sets

January 9, 2023

Mathematics
Analysis of PDEs
Functional Analysis
We show a result on propagation of the anisotropic Gabor wave front set for linear operators with a tempered distribution Schwartz kernel. The anisotropic Gabor wave front set is parametrized by a positive parameter relating the space and f...

Reduced clique graphs: a correction to "Chordal graphs and their clique graphs"

January 9, 2023

|

Mathematics
Combinatorics
Galinier, Habib, and Paul introduced the reduced clique graph of a chordal graph GG. The nodes of the reduced clique graph are the maximal cliques of GG, and two nodes are joined by an edge if and only if they form a non-disjoint separati...

Cross-Model Comparative Loss for Enhancing Neuronal Utility in Language Understanding

January 9, 2023

| | | | |

Computer Science
Computation and Language
Information Retrieval
Machine Learning
Current natural language understanding (NLU) models have been continuously scaling up, both in terms of model size and input context, introducing more hidden and input neurons. While this generally improves performance on average, the extra...

EDGES of the dark forest: A new absorption window into the composite dark matter and large scale structure

January 9, 2023

| |

Physics
Cosmology and Nongalactic Astrophysics
Astrophysics of Galaxies
High Energy Physics - Phenomenology
We propose a new method to hunt for dark matter using dark forest/absorption features across the whole electromagnetic spectrum from radio to gamma rays, especially in the bands where there is a desert i.e. regions where no strong lines fro...

Multimodal Transportation Pricing Alliance Design: Large-Scale Optimization for Rapid Gains

January 9, 2023

| | |

Mathematics
Optimization and Control
Transit agencies have the opportunity to outsource certain services to established Mobility-on-Demand (MOD) providers. Such alliances can improve service quality, coverage, and ridership; reduce public sector costs and vehicular emissions; ...

A Dual-Function Radar-Communication System Empowered by Beyond Diagonal Reconfigurable Intelligent Surface

January 9, 2023

| | | |

Electrical Engineering and Systems Science
Signal Processing
This work focuses on the use of reconfigurable intelligent surface (RIS) in dual-function radar-communication (DFRC) systems to improve communication capacity and sensing precision, and enhance coverage for both functions. In contrast to mo...

Regainingly approximable numbers and sets

January 9, 2023

| |

Mathematics
Logic
We call an αR\alpha \in \mathbb{R} regainingly approximable if there exists a computable nondecreasing sequence (an)n(a_n)_n of rational numbers converging to α\alpha with αan<2n\alpha - a_n < 2^{-n} for infinitely many nNn \in \mathbb{N}. We als...