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Chieh-Chi Kao

14 accepted papers

2025

Effective Techniques for Scaling Audio Encoder Pretraining

ICASSP 2025accepted

This work presents advancements in audio pretraining objectives designed to generate semantically rich embeddings, capable of addressing a wide range of audio-related tasks. Despite significant progress in the field, current methods often emphasize full fine-tuning in downstream applications, which…

Cited by 0SourceScholar
2025

Generative Audio Language Modeling with Continuous-valued Tokens and Masked Next-Token Prediction

ICML 2025poster

Autoregressive next-token prediction with the Transformer decoder has become a de facto standard in large language models (LLMs), achieving remarkable success in Natural Language Processing (NLP) at scale. Extending this paradigm to audio poses unique challenges due to its inherently continuous natu…

Cited by 0SourcePDFScholar
2025

IMPACT: Iterative Mask-based Parallel Decoding for Text-to-Audio Generation with Diffusion Modeling

ICML 2025poster

Text-to-audio generation synthesizes realistic sounds or music given a natural language prompt. Diffusion-based frameworks, including the Tango and the AudioLDM series, represent the state-of-the-art in text-to-audio generation. Despite achieving high audio fidelity, they incur significant inference…

2024

Cross-Triggering Issue in Audio Event Detection and Mitigation

ICASSP 2024accepted

Cross-triggering is a critical problem for applications of audio event detection (AED), particularly in low-resource settings. However, not much attention (if not none) has been paid to this problem in the AED research community. In this work, we tackle this problem via a regularization approach. We…

Cited by 0SourceScholar
2023

FedRPO: Federated Relaxed Pareto Optimization for Acoustic Event Classification

ICASSP 2023accepted

Performance and robustness of real-world Acoustic Event Classification (AEC) solutions depend on ability to train on diverse data from wide range of end-point devices and acoustic environments. Federated Learning (FL) provides a framework to leverage annotated and non-annotated AEC data from servers…

Cited by 0SourceScholar
2023

Weight-Sharing Supernet for Searching Specialized Acoustic Event Classification Networks Across Device Constraints

ICASSP 2023accepted

Acoustic Event Classification (AEC) has been widely used in devices such as smart speakers and mobile phones for home safety or accessibility support [1]. As AEC models run on more and more devices with diverse computation resource constraints, it became increasingly expensive to develop models that…

Cited by 1SourceScholar
2022

Federated Self-Supervised Learning for Acoustic Event Classification

ICASSP 2022accepted

Standard acoustic event classification (AEC) solutions require large-scale collection of data from client devices for model optimization. Federated learning (FL) is a compelling frame- work that decouples data collection and model training to enhance customer privacy. In this work, we investigate th…

Cited by 14SourceScholar
2022

Improved Representation Learning For Acoustic Event Classification Using Tree-Structured Ontology

ICASSP 2022accepted

Acoustic events have a hierarchical structure analogous to a tree (or a directed acyclic graph). In this work, we propose a structure-aware semi-supervised learning framework for acoustic event classification (AEC). Our hypothesis is that the audio label structure contains useful information that is…

Cited by 0SourceScholar
2022

Wikitag: Wikipedia-Based Knowledge Embeddings Towards Improved Acoustic Event Classification

ICASSP 2022accepted

Acoustic event classification (AEC) is the task of determining whether certain events occur in an audio clip. Inspired by previous research [1], [2], [3] that embeddings from event labels can be leveraged to facilitate the learning of new detectors with no or limited audio samples, we introduce Wiki…

Cited by 0SourceScholar
2021

Multi-Task Self-Supervised Pre-Training for Music Classification

ICASSP 2021accepted

Deep learning is very data hungry, and supervised learning especially requires massive labeled data to work well. Machine listening research often suffers from limited labeled data problem, as human annotations are costly to acquire, and annotations for audio are time consuming and less intuitive. B…

Cited by 0SourceScholar
2020

A Comparison of Pooling Methods on LSTM Models for Rare Acoustic Event Classification

ICASSP 2020accepted

Acoustic event classification (AEC) and acoustic event detection (AED) refer to the task of detecting whether specific target events occur in audios. As long short-term memory (LSTM) leads to state-of-the-art results in various speech related tasks, it is employed as a popular solution for AEC as we…

Cited by 0SourceScholar
2020

Few-Shot Acoustic Event Detection Via Meta Learning

ICASSP 2020accepted

We study few-shot acoustic event detection (AED) in this paper. Few-shot learning enables detection of new events with very limited labeled data. Compared to other research areas like computer vision, few-shot learning for audio recognition has been under-studied. We formulate few-shot AED problem a…

Cited by 0SourceScholar
2019

Hierarchical Residual-pyramidal Model for Large Context Based Media Presence Detection

ICASSP 2019accepted

We study media presence detection, that is, learning to recognize if a sound segment (typically lasting for a few seconds) of a long recorded stream contains media (TV) sound. This problem is difficult because non-media sound sources can be quite diverse (e.g. human voicing, non-vocal sounds and non…

Cited by 0SourceScholar
2019

Semi-supervised Acoustic Event Detection Based on Tri-training

ICASSP 2019accepted

This paper presents our work of training acoustic event detection (AED) models using unlabeled dataset. Recent acoustic event detectors are based on large-scale neural networks, which are typically trained with huge amounts of labeled data. Labels for acoustic events are expensive to obtain, and rel…

Cited by 0SourceScholar