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Kangkang Lu

5 accepted papers

2026

From Chaos to Cure: A Prefix Heuristics Guided Model-Agnostic Adaptive Detoxification Framework

AAAI 2026technical

The impressive performance of large language models (LLMs) also brings inherent toxicity risks, prompting the need for effective detoxification to support responsible deployment. Prevailing methods generally follow an inflexible model-specific fashion, addressing only individual models or model fami

Cited by 0SourcePDFScholar
2025

R2DQG: A Quality Meets Diversity Framework for Question Generation over Knowledge Bases

IJCAI 2025

The task of Knowledge-Based Question Generation (KBQG) involves generating natural language questions from structured knowledge sources, posing unique challenges in balancing linguistic diversity and semantic relevance. Existing models often focus on maximizing surface-level similarity to ground-tru

2024

Improving Expressive Power of Spectral Graph Neural Networks with Eigenvalue Correction

AAAI 2024technical

In recent years, spectral graph neural networks, characterized by polynomial filters, have garnered increasing attention and have achieved remarkable performance in tasks such as node classification. These models typically assume that eigenvalues for the normalized Laplacian matrix are distinct from…

2021

ARMOURED: Adversarially Robust MOdels using Unlabeled data by REgularizing Diversity

ICLR 2021poster

Adversarial attacks pose a major challenge for modern deep neural networks. Recent advancements show that adversarially robust generalization requires a large amount of labeled data for training. If annotation becomes a burden, can unlabeled data help bridge the gap? In this paper, we propose ARMOUR…

Cited by 3SourcePDFScholar