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Wei P. Dai

dblp:235/3119 · DBLP profile ↗
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1ranked-venue papers
0as first author
1since 2021 · last 2025
—ORCID · none

Domains — the database's venue-derived domains; a paper can count in several

Artificial intelligence and machine learning · 1 · 1 since 2021

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Interdisciplinary, comprehensive, and emerging computing
1 paper
Bioinformatics and computational biology · 100%
Artificial intelligence
1 paper
Deep learning architectures and training · 100%

Topics — the 3 heaviest of 3, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Machine learning › Deep learning architectures and training
spiking neural network
0.912025
Emergent Orientation Maps - - Mechanisms, Coding Efficiency and Robustness · ICLR 2025
Bioinformatics and computational biology
computational neuroscience
0.912025
Emergent Orientation Maps - - Mechanisms, Coding Efficiency and Robustness · ICLR 2025
Bioinformatics and computational biology › computational neuroscience › visual cortex
visual cortex modeling
0.912025
Emergent Orientation Maps - - Mechanisms, Coding Efficiency and Robustness · ICLR 2025

Methods — techniques the papers use, named apart from their topics

spiking neural network · 1.7hebbian plasticity · 1.7
YearPublicationVenuePosition
2025 Emergent Orientation Maps - - Mechanisms, Coding Efficiency and Robustness
abstract
Extensive experimental studies have shown that in lower mammals, neuronal orientation preference in the primary visual cortex is organized in disordered "salt-and-pepper" organizations. In contrast, higher-order mammals display a continuous variation in orientation preference, forming pinwheel-like structures. Despite these observations, the spiking mechanisms underlying the emergence of these distinct topological structures and their functional roles in visual processing remain poorly understood. To address this, we developed a self-evolving spiking neural network model with Hebbian plasticity, trained using physiological parameters characteristic of rodents, cats, and primates, including retinotopy, neuronal morphology, and connectivity patterns. Our results identify critical factors, such as the degree of input visual field overlap, neuronal connection range, and the balance between localized connectivity and long-range competition, that determine the emergence of either salt-and-pepper or pinwheel-like topologies. Furthermore, we demonstrate that pinwheel structures exhibit lower wiring costs and enhanced sparse coding capabilities compared to salt-and-pepper organizations. They also maintain greater coding robustness against noise in naturalistic visual stimuli. These findings suggest that such topological structures confer significant computational advantages in visual processing and highlight their potential application in the design of brain-inspired deep learning networks and algorithms.
Haixin Zhong, Wei P. Dai, Yuchao Huang, Mingyi Huang, Rubin Wang, Anna Wang Roe, Yuguo Yu
ICLR3