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Yifan Niu

8 accepted papers

2026

Mitigating the Safety Alignment Tax with Null-Space Constrained Policy Optimization

ICLR 2026poster

As Large Language Models (LLMs) are increasingly deployed in real-world applications, it is important to ensure their behaviors align with human values, societal norms, and ethical principles. However, safety alignment under Reinforcement Learning (RL) often suffers from forgetting learned general a…

Cited by 0SourcecodeScholar
2026

Repurposing 3D Generative Model for Autoregressive Layout Generation

CVPR 2026

We introduce LaviGen, a framework that repurposes 3D generative models for 3D layout generation. Unlike previous methods that infer object layouts from textual descriptions, LaviGen operates directly in the native 3D space, formulating layout generation as an autoregressive process that explicitly m

Cited by 0SourcecodeScholar
2026

Stereo World Model: Camera-Guided Stereo Video Generation

CVPR 2026

We present StereoWorld, a camera-conditioned stereo world model that jointly learns appearance and binocular geometry for end-to-end stereo video generation.Unlike monocular RGB or RGBD approaches, StereoWorld operates exclusively within the RGB modality, while simultaneously grounding geometry dire

Cited by 0SourcecodeScholar
2025

IBCircuit: Towards Holistic Circuit Discovery with Information Bottleneck

ICML 2025poster

Circuit discovery has recently attracted attention as a potential research direction to explain the non-trivial behaviors of language models. It aims to find the computational subgraphs, also known as circuits, within the model that are responsible for solving specific tasks. However, most existing…

Cited by 0SourcePDFScholar
2025

InversionGNN: A Dual Path Network for Multi-Property Molecular Optimization

ICLR 2025poster

Exploring chemical space to find novel molecules that simultaneously satisfy multiple properties is crucial in drug discovery. However, existing methods often struggle with trading off multiple properties due to the conflicting or correlated nature of chemical properties. To tackle this issue, we i…

2025

RelEdit: Evaluating Conceptual Knowledge Editing in Language Models via Relational Reasoning

ACL 2025finding

The conceptual knowledge in Large Language Models (LLMs) can become outdated over time, and concept editing is often an option. Current evaluations on conceptual knowledge editing primarily focus on whether the definitions of concepts are successfully edited, neglecting the impact on the model’s rel…

2023

Handling Missing Data via Max-Entropy Regularized Graph Autoencoder

AAAI 2023technical

Graph neural networks (GNNs) are popular weapons for modeling relational data. Existing GNNs are not specified for attribute-incomplete graphs, making missing attribute imputation a burning issue. Until recently, many works notice that GNNs are coupled with spectral concentration, which means the sp…

Cited by 17SourcePDFScholar