Publications (18)
The FRB-searching pipeline of the Tianlai Cylinder Pathfinder Array
Zijie Yu, Furen Deng, Shijie Sun +14
This paper presents the design, calibration, and survey strategy of the Fast Radio Burst (FRB) digital backend and its real-time data processing pipeline employed in the Tianlai Cy…
Differentiating the stochastic entropy for compact negatively curved spaces under conformal changes
Francois Ledrappier, Lin Shu
We consider the universal cover of a closed Riemannian manifold of negative sectional curvature. We show that the linear drift and the stochastic entropy are differentiable under a…
The Tianlai Cylinder Pathfinder Array: System Functions and Basic Performance Analysis
Jixia Li, Shifan Zuo, Fengquan Wu +35
The Tianlai Cylinder Pathfinder is a radio interferometer array designed to test techniques for 21 cm intensity mapping in the post-reionization Universe, with the ultimate aim of…
The regularity of the linear drift in negatively curved spaces
François Ledrappier, Lin Shu
We show the linear drift of the Brownian motion on the universal cover of a closed connected Riemannian manifold is differentiable along any curve in the manifold…
MedXplore: Towards Reliable and Unbiased Generalized Category Discovery in Medical Imaging
Jianwei He, Kailin Lyu, Junhao Dong +6
The paper presents MedXplore, a unified framework for generalized category discovery in medical imaging that leverages frequency-domain adaptive attention and an adaptive cosine-an…
MSSDA: Multi-Sub-Source Adaptation for Diabetic Foot Neuropathy Recognition
Yan Zhong, Zhixin Yan, Yi Xie +4
Diabetic foot neuropathy (DFN) is a critical factor leading to diabetic foot ulcers, which is one of the most common and severe complications of diabetes mellitus (DM) and is assoc…
Entropy rigidity of symmetric spaces without focal points
François Ledrappier, Lin Shu
We characterize symmetric spaces without focal points by the equality case of general equalities between geometric quantities.
A Fast Transient Backend to Detect FRBs with the Tianlai Dish Pathfinder Array
Zijie Yu, Furen Deng, Shijie Sun +11
The Tianlai Dish Pathfinder array is a radio interferometer array consisting of 16 six meter dish antennas. The original digital backend integration time is at the seconds level, d…
ClearGCD: Mitigating Shortcut Learning For Robust Generalized Category Discovery
Kailin Lyu, Jianwei He, Long Xiao +4
In open-world scenarios, Generalized Category Discovery (GCD) requires identifying both known and novel categories within unlabeled data. However, existing methods often suffer fro…
PhysMamba: State Space Duality Model for Remote Physiological Measurement
Zhixin Yan, Yan Zhong, Hongbin Xu +4
Remote Photoplethysmography (rPPG) enables non-contact physiological signal extraction from facial videos, offering applications in psychological state analysis, medical assistance…
TouchFormer: A Robust Transformer-based Framework for Multimodal Material Perception
Kailin Lyu, Long Xiao, Jianing Zeng +6
Traditional vision-based material perception methods often experience substantial performance degradation under visually impaired conditions, thereby motivating the shift toward no…
VQ-Touch: A Data-Efficient Tactile Generation Framework Across Sensors and Scenarios
Kailin Lyu, Long Xiao, Jianing Zeng +3
The paper presents VQ-Touch, a framework that efficiently generates high‑fidelity tactile images across different sensors and scenarios using a VQ‑GAN based representation and a di…
FedEgo: Privacy-preserving Personalized Federated Graph Learning with Ego-graphs
Taolin Zhang, Chuan Chen, Yaomin Chang +2
As special information carriers containing both structure and feature information, graphs are widely used in graph mining, e.g., Graph Neural Networks (GNNs). However, in some prac…
Capturing Fine-grained Semantics in Contrastive Graph Representation Learning
Lin Shu, Chuan Chen, Zibin Zheng
Graph contrastive learning defines a contrastive task to pull similar instances close and push dissimilar instances away. It learns discriminative node embeddings without supervise…
A family of stable diffusions
François Ledrappier, Lin Shu
Consider a closed connected Riemannian manifold with negative curvature. The unit tangent bundle is foliated by the (weak) stable foliation $\mathcal{W}^…
Entropies for negatively curved manifolds
François Ledrappier, Lin Shu
We survey several notions of entropy related to a compact manifold of negative curvature, some relations between them, and the rigidity problems.
TacReasoner: A Dynamic Tactile-Language Framework for Interactive Reasoning in Real-World Scenarios
Kailin Lyu, Di Wu, Long Xiao +7
Among the five primary human senses, tactile is arguably the most fundamental to survival, as it enables the perception of physical contact and interaction in real-world environmen…
Progress in the Construction and Testing of the Tianlai Radio Interferometers
Santanu Das, Christopher J. Anderson, Reza Ansari +44
The Tianlai Pathfinder is designed to demonstrate the feasibility of using a wide field of view radio interferometers to map the density of neutral hydrogen in the Universe after t…