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Chaofeng Sha

4 accepted papers

2026

ExpertAD: Enhancing Autonomous Driving Systems with Mixture of Experts

AAAI 2026technical

Recent advancements in end-to-end autonomous driving systems (ADSs) underscore their potential for perception and planning capabilities. However, challenges remain. Complex driving scenarios contain rich semantic information, yet ambiguous or noisy semantics can compromise decision reliability, whil

Cited by 0SourcePDFScholar
2023

Dual-graph co-representation learning for knowledge-Graph Enhanced Recommendation

ICASSP 2023accepted

Knowledge graphs can help improve the performance of recommender systems by mitigating sparsity and cold-start problems. However, existing approaches usually suffer from problems of domain distribution matching and cycle consistency for co-representation learning, as the representations of items fro…

Cited by 0SourceScholar
2022

Different Data, Different Modalities! Reinforced Data Splitting for Effective Multimodal Information Extraction from Social Media Posts

COLING 2022main

Recently, multimodal information extraction from social media posts has gained increasing attention in the natural language processing community. Despite their success, current approaches overestimate the significance of images. In this paper, we argue that different social media posts should consid…

2021

Reinforcement Learning Based Sparse Black-box Adversarial Attack on Video Recognition Models

IJCAI 2021poster

We explore the black-box adversarial attack on video recognition models. Attacks are only performed on selected key regions and key frames to reduce the high computation cost of searching adversarial perturbations on a video due to its high dimensionality. To select key frames, one way is to use…

Cited by 18SourcePDFScholar