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Huafeng Liu

16 accepted papers

2026

Bias-Spectrum Neural Processes for Parametric PDEs: Architecture Priors Meet PDE Constraints

ICML 2026poster

Parametric partial differential equations (PDEs) serve as fundamental models across science and engineering, yet constructing fast and accurate surrogate models from sparse, irregularly sampled observations with reliable uncertainty quantification remains challenging. Existing approaches struggle to…

Cited by 0SourceScholar
2026

GSV2X: Geometry-Aware Uncertainty Modeling and Orthogonal Fusion for Robust Roadside Perception

CVPR 2026

Reliable 3D perception from multi-view roadside sensors hinges on the robust fusion of camera and LiDAR data, a task complicated by geometric misalignments and sensor calibration errors. This paper presents GSV2X, a fusion framework that tackles these challenges through two core contributions. First

Cited by 0SourceScholar
2026

Learning Neural Operators from Partial Observations via Latent Autoregressive Modeling

AAAI 2026technical

Real-world scientific applications frequently encounter incomplete observational data due to sensor limitations, geographic constraints, or measurement costs. Although neural operators significantly advanced PDE solving in terms of computational efficiency and accuracy, their underlying assumption o

Cited by 0SourcePDFScholar
2026

MetaGameBO: Hierarchical Game-Theoretic Driven Robust Meta-Learning for Bayesian Optimization

AAAI 2026technical

Meta-learning for Bayesian optimization accelerates optimization by leveraging knowledge from previous tasks, but existing methods optimize for average performance and fail on challenging outlier tasks critical in practice. These limitations become particularly severe when target tasks exhibit distr

Cited by 0SourcePDFScholar
2025

Learning Robust Neural Processes with Risk-Averse Stochastic Optimization

ICML 2025poster

Neural processes (NPs) are a promising paradigm to enable skill transfer learning across tasks with the aid of the distribution of functions. The previous NPs employ the empirical risk minimization principle in optimization. However, the fast adaption ability to different tasks can vary widely, and…

Cited by 0SourcePDFScholar
2025

Learning to Generalize: An Information Perspective on Neural Processes

NeurIPS 2025poster

Neural Processes (NPs) combine the adaptability of neural networks with the efficiency of meta-learning, offering a powerful framework for modeling stochastic processes. However, existing methods focus on empirical performance while lacking a rigorous theoretical understanding of generalization. To…

Cited by 0SourceScholar
2025

UNIALIGN: Scaling Multimodal Alignment within One Unified Model

CVPR 2025poster

We present UNIALIGN, a unified model to align an arbitrary number of modalities (\text e.g. , image, text, audio, 3D point cloud, etc.) through one encoder and a single training phase. Existing solutions typically employ distinct encoders for each modality, resulting in increased parameters as the…

2024

FashionR2R: Texture-preserving Rendered-to-Real Image Translation with Diffusion Models

NeurIPS 2024poster

Modeling and producing lifelike clothed human images has attracted researchers' attention from different areas for decades, with the complexity from highly articulated and structured content. Rendering algorithms decompose and simulate the imaging process of a camera, while are limited by the accura…

Cited by 1SourcePDFScholar
2024

On the Identifiability of Hybrid Deep Generative Models: Meta-Learning as a Solution

NeurIPS 2024poster

The interest in leveraging physics-based inductive bias in deep learning has resulted in recent development of _hybrid deep generative models (hybrid-DGMs)_ that integrates known physics-based mathematical expressions in neural generative models. To identify these hybrid-DGMs requires inferring par…

Cited by 0SourcePDFScholar
2024

VideoMAC: Video Masked Autoencoders Meet ConvNets

CVPR 2024poster

Recently the advancement of self-supervised learning techniques like masked autoencoders (MAE) has greatly influenced visual representation learning for images and videos. Nevertheless it is worth noting that the predominant approaches in existing masked image / video modeling rely excessively on re…

2023

Improving Embedding-based Unsupervised Keyphrase Extraction by Incorporating Structural Information

ACL 2023findings

Keyphrase extraction aims to extract a set of phrases with the central idea of the source document. In a structured document, there are certain locations (e.g., the title or the first sentence) where a keyphrase is most likely to appear. However, when extracting keyphrases from the document, most ex…

Cited by 14SourcePDFScholar
2022

Deep Amortized Relational Model with Group-Wise Hierarchical Generative Process

AAAI 2022technical

In this paper, we propose Deep amortized Relational Model (DaRM) with group-wise hierarchical generative process for community discovery and link prediction on relational data (e.g., graph, network). It provides an efficient neural relational model architecture by grouping nodes in a group-wise view…

Cited by 3SourcePDFScholar
2021

Interpretable Image Recognition by Constructing Transparent Embedding Space

ICCV 2021poster

Humans usually explain their reasoning (e.g. classification) by dissecting the image and pointing out the evidence from these parts to the concepts in their minds. Inspired by this cognitive process, several part-level interpretable neural network architectures have been proposed to explain the pred…

Cited by 142PDFcodeScholar