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hanxue liang

10 accepted papers

2026

Dirichlet-Prior Shaping: Guiding Expert Specialization in Upcycled MoEs

ICML 2026poster

Upcycling pre-trained dense models into sparse Mixture-of-Experts (MoEs) efficiently increases model capacity but often suffers from poor expert specialization due to naive weight replication. We introduce Dirichlet-Prior Shaping Loss (DPSL), a novel router regularization technique that directly sha…

Cited by 0SourceScholar
2025

Feed-Forward Bullet-Time Reconstruction of Dynamic Scenes from Monocular Videos

NeurIPS 2025poster

Recent advancements in static feed-forward scene reconstruction have demonstrated significant progress in high-quality novel view synthesis. However, these models often struggle with generalizability across diverse environments and fail to effectively handle dynamic content. We present BTimer (short…

Cited by 0SourceScholar
2024

Diffusion4D: Fast Spatial-temporal Consistent 4D generation via Video Diffusion Models

NeurIPS 2024poster

The availability of large-scale multimodal datasets and advancements in diffusion models have significantly accelerated progress in 4D content generation. Most prior approaches rely on multiple images or video diffusion models, utilizing score distillation sampling for optimization or generating pse…

Cited by 32SourcePDFScholar
2024

L4GM: Large 4D Gaussian Reconstruction Model

NeurIPS 2024poster

We present L4GM, the first 4D Large Reconstruction Model that produces animated objects from a single-view video input -- in a single feed-forward pass that takes only a second. Key to our success is a novel dataset of multiview videos containing curated, rendered animated objects from Objaverse. Th…

Cited by 38SourcePDFScholar
2024

SCube: Instant Large-Scale Scene Reconstruction using VoxSplats

NeurIPS 2024poster

We present SCube, a novel method for reconstructing large-scale 3D scenes (geometry, appearance, and semantics) from a sparse set of posed images. Our method encodes reconstructed scenes using a novel representation VoxSplat, which is a set of 3D Gaussians supported on a high-resolution sparse-voxel…

Cited by 10SourcePDFScholar
2023

Enhancing NeRF akin to Enhancing LLMs: Generalizable NeRF Transformer with Mixture-of-View-Experts

ICCV 2023poster

Cross-scene generalizable NeRF models, which can directly synthesize novel views of unseen scenes, have become a new spotlight of the NeRF field. Several existing attempts rely on increasingly end-to-end "neuralized" architectures, i.e., replacing scene representation and/or rendering modules with p…

Cited by 21PDFcodeScholar
2022

M³ViT: Mixture-of-Experts Vision Transformer for Efficient Multi-task Learning with Model-Accelerator Co-design

NeurIPS 2022accept

Multi-task learning (MTL) encapsulates multiple learned tasks in a single model and often lets those tasks learn better jointly. Multi-tasking models have become successful and often essential for many sophisticated systems such as autonomous driving and indoor robots. However, when deploying MTL on…

Cited by 92SourcePDFScholar
2022

Point Cloud Domain Adaptation via Masked Local 3D Structure Prediction

ECCV 2022poster

"The superiority of deep learning based point cloud representations relies on large-scale labeled datasets, while the annotation of point clouds is notoriously expensive. One of the most effective solutions is to transfer the knowledge from existing labeled source data to unlabeled target data. Howe…

2021

Exploring Geometry-Aware Contrast and Clustering Harmonization for Self-Supervised 3D Object Detection

ICCV 2021poster

Current 3D object detection paradigms highly rely on extensive annotation efforts, which makes them not practical in many real-world industrial applications. Inspired by that a human driver can keep accumulating experiences from self-exploring the roads without any tutor's guidance, we first step fo…

Cited by 86PDFcodeScholar
2021

One Million Scenes for Autonomous Driving: ONCE Dataset

NeurIPS 2021poster

Current perception models in autonomous driving have become notorious for greatly relying on a mass of annotated data to cover unseen cases and address the long-tail problem. On the other hand, learning from unlabeled large-scale collected data and incrementally self-training powerful recognition mo…

Cited by 332SourcecodeScholar