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Yi-Cheng Wang

5 accepted papers

2025

ConPCO: Preserving Phoneme Characteristics For Automatic Pronunciation Assessment Leveraging Contrastive Ordinal Regularization

ICASSP 2025accepted

Automatic pronunciation assessment (APA) manages to evaluate the pronunciation proficiency of a second language (L2) learner in a target language. Existing efforts typically draw on regression models for proficiency score prediction, wherein the models are trained to estimate target values without e…

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2024

An Effective Mixture-Of-Experts Approach For Code-Switching Speech Recognition Leveraging Encoder Disentanglement

ICASSP 2024accepted

With the massive developments of end-to-end (E2E) neural networks, recent years have witnessed unprecedented breakthroughs in automatic speech recognition (ASR). However, the code-switching phenomenon remains a major obstacle that hinders ASR from perfection, as the lack of labeled data and the vari…

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2024

An Effective Pronunciation Assessment Approach Leveraging Hierarchical Transformers and Pre-training Strategies

ACL 2024long

Automatic pronunciation assessment (APA) manages to quantify a second language (L2) learner’s pronunciation proficiency in a target language by providing fine-grained feedback with multiple pronunciation aspect scores at various linguistic levels. Most existing efforts on APA typically parallelize t…

2024

DANCER: Entity Description Augmented Named Entity Corrector for Automatic Speech Recognition

COLING 2024main

End-to-end automatic speech recognition (E2E ASR) systems often suffer from mistranscription of domain-specific phrases, such as named entities, sometimes leading to catastrophic failures in downstream tasks. A family of fast and lightweight named entity correction (NEC) models for ASR have recently…

2023

Effective Graph-Based Modeling of Articulation Traits for Mispronunciation Detection and Diagnosis

ICASSP 2023accepted

Mispronunciation detection and diagnosis (MDD) manages to pinpoint phone-level erroneous pronunciation segmentations and provide instant and informative diagnostic feedback to L2 (second-language) learners. Among the various modeling paradigms for MDD, dictation-based neural methods have recently be…

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