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Weijian Mai

6 accepted papers

2026

Compose Your Policies! Improving Diffusion-based or Flow-based Robot Policies via Test-time Distribution-level Composition

ICLR 2026poster

Diffusion-based models for robotic control, including vision-language-action (VLA) and vision-action (VA) policies, have demonstrated significant capabilities. Yet their advancement is constrained by the high cost of acquiring large-scale interaction datasets. This work introduces an alternative par…

Cited by 0SourcecodeScholar
2026

Meta-Learning In-Context Enables Training-Free Cross Subject Brain Decoding

CVPR 2026

Visual decoding from brain signals is a key challenge at the intersection of computer vision and neuroscience, requiring methods that bridge neural representations and computational models of vision. A field-wide goal is to achieve generalizable, cross-subject models. A major obstacle towards this g

Cited by 0SourcecodeScholar
2026

NeuroFlow: Toward Unified Visual Encoding and Decoding from Neural Activity

CVPR 2026

Visual encoding and decoding models act as gateways to understanding the neural mechanisms underlying human visual perception. Typically, visual encoding models that predict brain activity from stimuli and decoding models that reproduce stimuli from brain activity are treated as distinct tasks, requ

Cited by 0SourcecodeScholar
2025

MindAligner: Explicit Brain Functional Alignment for Cross-Subject Visual Decoding from Limited fMRI Data

ICML 2025poster

Brain decoding aims to reconstruct visual perception of human subject from fMRI signals, which is crucial for understanding brain's perception mechanisms. Existing methods are confined to the single-subject paradigm due to substantial brain variability, which leads to weak generalization across ind…

Cited by 0SourcePDFScholar
2025

Neuro-3D: Towards 3D Visual Decoding from EEG Signals

CVPR 2025poster

Human's perception of the visual world is shaped by the stereo processing of 3D information. Understanding how the brain perceives and processes 3D visual stimuli in the real world has been a longstanding endeavor in neuroscience. Towards this goal, we introduce a new neuroscience task: decoding 3D…

2025

SynBrain: Enhancing Visual-to-fMRI Synthesis via Probabilistic Representation Learning

NeurIPS 2025poster

Deciphering how visual stimuli are transformed into cortical responses is a fundamental challenge in computational neuroscience. This visual-to-neural mapping is inherently a one-to-many relationship, as identical visual inputs reliably evoke variable hemodynamic responses across trials, contexts, a…

Cited by 0SourcecodeScholar