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Ben Niu

7 accepted papers

2025

An Abnormal Audio Generation Method for Fault Diagnosis of Power Transformers

ICASSP 2025accepted

Existing deep learning-based models can achieve a prompt diagnosis of operational anomalies by analyzing the audios emitted from power transformers. However, the practical abnormal data are insufficient for model training, resulting in limited diagnostic performance. To address this problem, we prop…

Cited by 0SourceScholar
2025

An Efficient Task-Oriented Dialogue Policy: Evolutionary Reinforcement Learning Injected by Elite Individuals

ACL 2025long

Deep Reinforcement Learning (DRL) is widely used in task-oriented dialogue systems to optimize dialogue policy, but it struggles to balance exploration and exploitation due to the high dimensionality of state and action spaces. This challenge often results in local optima or poor convergence. Evolut…

Cited by 0SourcePDFScholar
2025

Design and Performance Analysis of a Series-Parallel Self-Aligning Index Finger Exoskeleton

RA-L 2025

Hand exoskeletons have become increasingly crucial for the rehabilitation of hand function, as relevant studies have shown that using the exoskeletons to assist in rehabilitation training can improve hand motor function. However, developing a human-robot kinematic compatibility exoskeleton while pro

Cited by 0SourceScholar
2025

Semantic-Aware Action Space Compression via LLM-DRL Synergy for Efficient Task-oriented Dialogue Policy Exploration

EMNLP 2025

The flexibility of natural language significantly expands the action space in task-oriented dialogue systems, causing inefficient exploration and slow convergence in deep reinforcement learning (DRL)-based policy optimization. Pre-trained large language models (LLMs), with world knowledge and semant

Cited by 0SourcePDFScholar
2024

Bootstrapped Policy Learning for Task-oriented Dialogue through Goal Shaping

EMNLP 2024main

Reinforcement learning shows promise in optimizing dialogue policies, but addressing the challenge of reward sparsity remains crucial. While curriculum learning offers a practical solution by strategically training policies from simple to complex, it hinges on the assumption of a gradual increase in…

2024

Interpreting Memorization in Deep Learning from Data Distribution

ICASSP 2024accepted

A deep learning model can be vulnerable to a membership inference attack (MIA) which allows an attacker to determine if a specific data record was used for its training. In this paper, we investigate the unfairness of disparate vulnerability to MIA across different subgroups in terms of their data d…

Cited by 0SourceScholar
2020

Single Image Super-Resolution via a Holistic Attention Network

ECCV 2020poster

Informative features play a crucial role in the single image super-resolution task. Channel attention has been demonstrated to be effective for preserving information-rich features in each layer. However, channel attention treats each convolution layer as a separate process, which is kind of missing…

Cited by 878SourcePDFScholar