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Jinghan Liu

4 accepted papers

2025

Int*-Match: Balancing Intra-Class Compactness and Inter-Class Discrepancy for Semi-Supervised Speaker Recognition

AAAI 2025technical

Open-set speaker recognition is to identify whether the voices are from the same speaker. One challenge of speaker recognition is collecting large amounts of high-quality data. Based on the promising results of image classification, one intuitively feasible solution is semi-supervised learning (SSL)…

2025

Model Selection for Off-policy Evaluation: New Algorithms and Experimental Protocol

NeurIPS 2025poster

Holdout validation and hyperparameter tuning from data is a long-standing problem in offline reinforcement learning (RL). A standard framework is to use off-policy evaluation (OPE) methods to evaluate and select the policies, but OPE either incurs exponential variance (e.g., importance sampling) or…

Cited by 0SourceScholar
2024

Two-stage Semi-supervised Speaker Recognition with Gated Label Learning

IJCAI 2024poster

Speaker recognition technologies have been successfully applied in diverse domains, benefiting from the advance of deep learning. Nevertheless, current efforts are still subject to the lack of labeled data. Such issues have been attempted in computer vision, through semi-supervised learning (SSL) th…

Cited by 1SourcePDFScholar
2023

Utility Maximizer or Value Maximizer: Mechanism Design for Mixed Bidders in Online Advertising

AAAI 2023technical

Digital advertising constitutes one of the main revenue sources for online platforms. In recent years, some advertisers tend to adopt auto-bidding tools to facilitate advertising performance optimization, making the classical utility maximizer model in auction theory not fit well. Some recent studie…

Cited by 11SourcePDFScholar