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Xiaowen Ma

9 accepted papers

2026

Expert Merging: Model Merging with Unsupervised Expert Alignment and Importance-Guided Layer Chunking

ICLR 2026poster

Model merging, which combines multiple domain-specialized experts into a single model, offers a practical path to endow Large Language Models (LLMs) and Multimodal Large Language Models (MLLMs) with broad capabilities without the cost of joint training or serving many models. However, training-free…

Cited by 0SourcecodeScholar
2026

Large-scale Codec Avatars: The Unreasonable Effectiveness of Large-scale Avatar Pretraining

CVPR 2026

High-quality 3D avatar modeling faces a critical trade-off between fidelity and generalization. On the one hand, multi-view studio data enables high-fidelity modeling of humans with precise control over expressions and poses, but it struggles to generalize to real-world data due to limited scale and

Cited by 0SourcecodeScholar
2026

VLM-Pruner: Buffering for Spatial Sparsity in an Efficient VLM Centrifugal Token Pruning Paradigm

CVPR 2026

Vision-language models (VLMs) excel at image understanding tasks, but the large number of visual tokens imposes significant computational costs, hindering deployment on mobile devices. Many pruning methods rely solely on token importance and thus overlook inter-token redundancy, retaining numerous d

Cited by 0SourcecodeScholar
2025

TimePro: Efficient Multivariate Long-term Time Series Forecasting with Variable- and Time-Aware Hyper-state

ICML 2025poster

In long-term time series forecasting, different variables often influence the target variable over distinct time intervals, a challenge known as the multi-delay issue. Traditional models typically process all variables or time points uniformly, which limits their ability to capture complex variable…

2024

CROCFUN: Cross-Modal Conditional Fusion Network for Pansharpening

ICASSP 2024accepted

Pansharpening aims to reconstruct a high-fidelity multispectral (HR-MS) image by fusing a multispectral (MS) image and a panchromatic (PAN) image. However, conventional pansharpening methods often struggle to address the modal gap between PAN and MS images. In this paper, we propose a novel cross-mo…

Cited by 0SourceScholar
2024

SSA-Seg: Semantic and Spatial Adaptive Pixel-level Classifier for Semantic Segmentation

NeurIPS 2024poster

Vanilla pixel-level classifiers for semantic segmentation are based on a certain paradigm, involving the inner product of fixed prototypes obtained from the training set and pixel features in the test image. This approach, however, encounters significant limitations, i.e., feature deviation in the…

Cited by 3SourcePDFScholar
2023

Log-Can: Local-Global Class-Aware Network For Semantic Segmentation of Remote Sensing Images

ICASSP 2023accepted

Remote sensing images are known of having complex backgrounds, high intra-class variance and large variation of scales, which bring challenge to semantic segmentation. We present LoG-CAN, a multi-scale semantic segmentation network with a global class-aware (GCA) module and local class-aware (LCA) m…

Cited by 0SourceScholar