Search

Your search keyword '"Yang, Liyan"' showing total 941 results
Start Over Author "Yang, Liyan"
941 results on '"Yang, Liyan"'

1. PIB: Prioritized Information Bottleneck Framework for Collaborative Edge Video Analytics

Author

Fang, Zhengru, Hu, Senkang, Yang, Liyan, Deng, Yiqin, Chen, Xianhao, and Fang, Yuguang

Subjects
Computer Science - Networking and Internet Architecture
Abstract

Collaborative edge sensing systems, particularly in collaborative perception systems in autonomous driving, can significantly enhance tracking accuracy and reduce blind spots with multi-view sensing capabilities. However, their limited channel capacity and the redundancy in sensory data pose significant challenges, affecting the performance of collaborative inference tasks. To tackle these issues, we introduce a Prioritized Information Bottleneck (PIB) framework for collaborative edge video analytics. We first propose a priority-based inference mechanism that jointly considers the signal-to-noise ratio (SNR) and the camera's coverage area of the region of interest (RoI). To enable efficient inference, PIB reduces video redundancy in both spatial and temporal domains and transmits only the essential information for the downstream inference tasks. This eliminates the need to reconstruct videos on the edge server while maintaining low latency. Specifically, it derives compact, task-relevant features by employing the deterministic information bottleneck (IB) method, which strikes a balance between feature informativeness and communication costs. Given the computational challenges caused by IB-based objectives with high-dimensional data, we resort to variational approximations for feasible optimization. Compared to TOCOM-TEM, JPEG, and HEVC, PIB achieves an improvement of up to 15.1\% in mean object detection accuracy (MODA) and reduces communication costs by 66.7% when edge cameras experience poor channel conditions., Comment: Accepted by Globecom 2024. Code will be available at https://github.com/fangzr/PIB-Prioritized-Information-Bottleneck-Framework

Published
2024

11. The little skate genome and the evolutionary emergence of wing-like fins

Author

Marlétaz, Ferdinand, de la Calle-Mustienes, Elisa, Acemel, Rafael D, Paliou, Christina, Naranjo, Silvia, Martínez-García, Pedro Manuel, Cases, Ildefonso, Sleight, Victoria A, Hirschberger, Christine, Marcet-Houben, Marina, Navon, Dina, Andrescavage, Ali, Skvortsova, Ksenia, Duckett, Paul Edward, González-Rajal, Álvaro, Bogdanovic, Ozren, Gibcus, Johan H, Yang, Liyan, Gallardo-Fuentes, Lourdes, Sospedra, Ismael, Lopez-Rios, Javier, Darbellay, Fabrice, Visel, Axel, Dekker, Job, Shubin, Neil, Gabaldón, Toni, Nakamura, Tetsuya, Tena, Juan J, Lupiáñez, Darío G, Rokhsar, Daniel S, and Gómez-Skarmeta, José Luis

Subjects
Biological Sciences, Bioinformatics and Computational Biology, Genetics, Biotechnology, Human Genome, Generic health relevance, Animals, Animal Fins, Genomics, Homeodomain Proteins, Skates, Fish, Zebrafish, Biological Evolution, Genome, Genes, Reporter, General Science & Technology
Abstract

Skates are cartilaginous fish whose body plan features enlarged wing-like pectoral fins, enabling them to thrive in benthic environments1,2. However, the molecular underpinnings of this unique trait remain unclear. Here we investigate the origin of this phenotypic innovation by developing the little skate Leucoraja erinacea as a genomically enabled model. Analysis of a high-quality chromosome-scale genome sequence for the little skate shows that it preserves many ancestral jawed vertebrate features compared with other sequenced genomes, including numerous ancient microchromosomes. Combining genome comparisons with extensive regulatory datasets in developing fins-including gene expression, chromatin occupancy and three-dimensional conformation-we find skate-specific genomic rearrangements that alter the three-dimensional regulatory landscape of genes that are involved in the planar cell polarity pathway. Functional inhibition of planar cell polarity signalling resulted in a reduction in anterior fin size, confirming that this pathway is a major contributor to batoid fin morphology. We also identified a fin-specific enhancer that interacts with several hoxa genes, consistent with the redeployment of hox gene expression in anterior pectoral fins, and confirmed its potential to activate transcription in the anterior fin using zebrafish reporter assays. Our findings underscore the central role of genome reorganization and regulatory variation in the evolution of phenotypes, shedding light on the molecular origin of an enigmatic trait.

Published
2023

33. The little skate genome and the evolutionary emergence of wing-like fin appendages

Author

Marlétaz, Ferdinand, de la Calle-Mustienes, Elisa, Acemel, Rafael D, Nakamura, Tetsuya, Paliou, Christina, Naranjo, Silvia, Martínez-García, Pedro Manuel, Cases, Ildefonso, Sleight, Victoria A, Hirschberger, Christine, Marcet-Houben, Marina, Navon, Dina, Andrescavage, Ali, Skvortsova, Ksenia, Duckett, Paul Edward, González-Rajal, Álvaro, Bogdanovic, Ozren, Gibcus, Johan H, Yang, Liyan, Gallardo-Fuentes, Lourdes, Sospedra, Ismael, Lopez-Rios, Javier, Darbellay, Fabrice, Visel, Axel, Dekker, Job, Shubin, Neil, Gabaldón, Toni, Tena, Juan J, Lupiáñez, Darío G, Rokhsar, Daniel S, and Gómez-Skarmeta, José Luis

Subjects
Biological Sciences, Bioinformatics and Computational Biology, Genetics, Human Genome, Generic health relevance
Abstract

Skates are cartilaginous fish whose novel body plan features remarkably enlarged wing-like pectoral fins that allow them to thrive in benthic environments. The molecular underpinnings of this unique trait, however, remain elusive. Here we investigate the origin of this phenotypic innovation by developing the little skate Leucoraja erinacea as a genomically enabled model. Analysis of a high-quality chromosome-scale genome sequence for the little skate shows that it preserves many ancestral jawed vertebrate features compared with other sequenced genomes, including numerous ancient microchromosomes. Combining genome comparisons with extensive regulatory datasets in developing fins (gene expression, chromatin occupancy and three-dimensional (3D) conformation) we find skate-specific genomic rearrangements that alter the 3D regulatory landscape of genes involved in the planar cell polarity (PCP) pathway. Functional inhibition of PCP signaling resulted in marked reduction of anterior fin size, confirming this pathway as a major contributor of batoid fin morphology. We also identified a fin-specific enhancer that interacts with 3' HOX genes, consistent with the redeployment of Hox gene expression in anterior pectoral fins, and confirmed the potential of this element to activate transcription in the anterior fin using zebrafish reporter assays. Our findings underscore the central role of genome reorganizations and regulatory variation in the evolution of phenotypes, shedding light on the molecular origin of an enigmatic trait.

Published
2022

Catalog

Books, media, physical & digital resources
See catalog results