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Bingbing Xu

7 accepted papers

2025

From Outcomes to Processes: Guiding PRM Learning from ORM for Inference-Time Alignment

ACL 2025long

Inference-time alignment methods have gained significant attention for their efficiency and effectiveness in aligning large language models (LLMs) with human preferences. However, existing dominant approaches using reward-guided search (RGS) primarily rely on outcome reward models (ORMs), which suff…

2025

Inference-time Alignment in Continuous Space

NeurIPS 2025poster

Aligning large language models with human feedback at inference time has received increasing attention due to its flexibility. Existing methods rely on generating multiple responses from the base policy for search using a reward model, which can be considered as searching in a discrete response spac…

Cited by 0SourcecodeScholar
2025

Towards Better Value Principles for Large Language Model Alignment: A Systematic Evaluation and Enhancement

ACL 2025long

As Large Language Models (LLMs) advance, aligning them with human values is critical for their responsible development. Value principles serve as the foundation for clarifying alignment goals.Multiple sets of value principles have been proposed, such as HHH (helpful, honest, harmless) and instructio…

2024

PDE+: Enhancing Generalization via PDE with Adaptive Distributional Diffusion

AAAI 2024technical

The generalization of neural networks is a central challenge in machine learning, especially concerning the performance under distributions that differ from training ones. Current methods, mainly based on the data-driven paradigm such as data augmentation, adversarial training, and noise injection,…

2021

Towards Consumer Loan Fraud Detection: Graph Neural Networks with Role-Constrained Conditional Random Field

AAAI 2021technical

Consumer loans, i.e., loans to finance consumers to buy certain types of expenditures, is increasingly popular in e-commerce platform. Different from traditional loans with mortgage, online consumer loans only take personal credit as collateral for loans. Consequently, loan fraud detection is partic…

Cited by 88SourcePDFScholar