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Xiaowei Zhao

8 accepted papers

2026

Query-Routed Activation Editing with Truth-hierarchical Preference Optimization

AAAI 2026technical

Hallucination has emerged as a pivotal challenge of Large Language Models (LLMs) that generate plausible yet non‑factual content, significantly impeding the trustworthy AI applications in real-world scenarios like medical diagnosis and autonomous driving. Editing the internal activations of LLMs du

Cited by 0SourcePDFScholar
2024

Dual Encoder: Exploiting the Potential of Syntactic and Semantic for Aspect Sentiment Triplet Extraction

COLING 2024main

Aspect Sentiment Triple Extraction (ASTE) is an emerging task in fine-grained sentiment analysis. Recent studies have employed Graph Neural Networks (GNN) to model the syntax-semantic relationships inherent in triplet elements. However, they have yet to fully tap into the vast potential of syntactic…

2022

GMF: General Multimodal Fusion Framework for Correspondence Outlier Rejection

RA-L 2022

Rejecting correspondence outliers enables to boost the correspondence quality, which is a critical step in achieving high point cloud registration accuracy. The current state-of-the-art correspondence outlier rejection methods only utilize the structure features of the correspondences. However, text

Cited by 15SourcecodeScholar
2022

IMFNet: Interpretable Multimodal Fusion for Point Cloud Registration

RA-L 2022

The existing state-of-the-art point descriptor relies on structure information only, which omits the texture information. However, texture information is crucial for our humans to distinguish a scene part. Moreover, the current learning-based point descriptors are all black boxes which are unclear h

Cited by 52SourcecodeScholar
2022

Unsupervised Point Cloud Registration by Learning Unified Gaussian Mixture Models

RA-L 2022

Sampling noise and density variation widely exist in the point cloud acquisition process, leading to few accurate point-to-point correspondences. Since they rely on point-to-point correspondence search, existing state-of-the-art point cloud registration methods face difficulty in overcoming the samp

Cited by 32SourceScholar
2015

Conditional Convolutional Neural Network for Modality-Aware Face Recognition

ICCV 2015poster

Faces in the wild are usually captured with various poses, illuminations and occlusions, and thus inherently multimodally distributed in many tasks. We propose a conditional Convolutional Neural Network, named as c-CNN, to handle multimodal face recognition. Different from traditional CNN that adopt…

Cited by 111PDFScholar