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Heeseung Kim

10 accepted papers

2025

Does Your Voice Assistant Remember? Analyzing Conversational Context Recall and Utilization in Voice Interaction Models

ACL 2025finding

Recent advancements in multi-turn voice interaction models have improved user-model communication. However, while closed-source models effectively retain and recall past utterances, whether open-source models share this ability remains unexplored. To fill this gap, we systematically evaluate how wel…

Cited by 0SourcePDFScholar
2025

EdiText: Controllable Coarse-to-Fine Text Editing with Diffusion Language Models

ACL 2025long

We propose EdiText, a controllable text editing method that modifies the reference text to desired attributes at various scales. We integrate an SDEdit-based editing technique that allows for broad adjustments in the degree of text editing. Additionally, we introduce a novel fine-level editing metho…

2025

Large-Scale Text-to-Image Model with Inpainting is a Zero-Shot Subject-Driven Image Generator

CVPR 2025poster

Subject-driven text-to-image generation aims to produce images of a new subject within a desired context by accurately capturing both the visual characteristics of the subject and the semantic content of a text prompt. Traditional methods rely on time- and resource-intensive fine-tuning for subject…

Cited by 13SourcePDFScholar
2025

NanoVoice: Efficient Speaker-Adaptive Text-to-Speech for Multiple Speakers

ICASSP 2025accepted

We present NanoVoice, a personalized text-to-speech model that efficiently constructs voice adapters for multiple speakers simultaneously. NanoVoice introduces a batch-wise speaker adaptation technique capable of fine-tuning multiple references in parallel, significantly reducing training time. Beyo…

Cited by 0SourceScholar
2025

VoiceGuider: Enhancing Out-of-Domain Performance in Parameter-Efficient Speaker-Adaptive Text-to-Speech via Autoguidance

ICASSP 2025accepted

When applying parameter-efficient finetuning via LoRA onto speaker adaptive text-to-speech models, adaptation performance may decline compared to full-finetuned counterparts, especially for out-of-domain speakers. Here, we propose VoiceGuider, a parameter-efficient speaker adaptive text-to-speech sy…

Cited by 0SourceScholar
2024

Paralinguistics-Aware Speech-Empowered Large Language Models for Natural Conversation

NeurIPS 2024poster

Recent work shows promising results in expanding the capabilities of large language models (LLM) to directly understand and synthesize speech. However, an LLM-based strategy for modeling spoken dialogs remains elusive, calling for further investigation. This paper introduces an extensive speech-text…

2022

Guided-TTS: A Diffusion Model for Text-to-Speech via Classifier Guidance

ICML 2022spotlight

We propose Guided-TTS, a high-quality text-to-speech (TTS) model that does not require any transcript of target speaker using classifier guidance. Guided-TTS combines an unconditional diffusion probabilistic model with a separately trained phoneme classifier for classifier guidance. Our unconditiona…

Cited by 112SourcePDFScholar
2022

PriorGrad: Improving Conditional Denoising Diffusion Models with Data-Dependent Adaptive Prior

ICLR 2022poster

Denoising diffusion probabilistic models have been recently proposed to generate high-quality samples by estimating the gradient of the data density. The framework assumes the prior noise as a standard Gaussian distribution, whereas the corresponding data distribution may be more complicated than th…

2022

Rare Tokens Degenerate All Tokens: Improving Neural Text Generation via Adaptive Gradient Gating for Rare Token Embeddings

ACL 2022long

Recent studies have determined that the learned token embeddings of large-scale neural language models are degenerated to be anisotropic with a narrow-cone shape. This phenomenon, called the representation degeneration problem, facilitates an increase in the overall similarity between token embeddin…

Cited by 35SourcePDFScholar
2022

Stein Latent Optimization for Generative Adversarial Networks

ICLR 2022poster

Generative adversarial networks (GANs) with clustered latent spaces can perform conditional generation in a completely unsupervised manner. In the real world, the salient attributes of unlabeled data can be imbalanced. However, most of existing unsupervised conditional GANs cannot cluster attributes…