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Shinhyeok Oh

6 accepted papers

2024

Multi-Architecture Multi-Expert Diffusion Models

AAAI 2024technical

In this paper, we address the performance degradation of efficient diffusion models by introducing Multi-architecturE Multi-Expert diffusion models (MEME). We identify the need for tailored operations at different time-steps in diffusion processes and leverage this insight to create compact yet high…

2023

Addressing Negative Transfer in Diffusion Models

NeurIPS 2023poster

Diffusion-based generative models have achieved remarkable success in various domains. It trains a shared model on denoising tasks that encompass different noise levels simultaneously, representing a form of multi-task learning (MTL). However, analyzing and improving diffusion models from an MTL per…

2023

Cross Encoding as Augmentation: Towards Effective Educational Text Classification

ACL 2023findings

Text classification in education, usually called auto-tagging, is the automated process of assigning relevant tags to educational content, such as questions and textbooks. However, auto-tagging suffers from a data scarcity problem, which stems from two major challenges: 1) it possesses a large tag s…

Cited by 5SourcePDFScholar
2023

Evaluation of Question Generation Needs More References

ACL 2023findings

Question generation (QG) is the task of generating a valid and fluent question based on a given context and the target answer. According to various purposes, even given the same context, instructors can ask questions about different concepts, and even the same concept can be written in different way…

Cited by 2SourcePDFScholar
2023

RWEN-TTS: Relation-Aware Word Encoding Network for Natural Text-to-Speech Synthesis

AAAI 2023technical

With the advent of deep learning, a huge number of text-to-speech (TTS) models which produce human-like speech have emerged. Recently, by introducing syntactic and semantic information w.r.t the input text, various approaches have been proposed to enrich the naturalness and expressiveness of TTS mod…

2021

Deep Context- and Relation-Aware Learning for Aspect-based Sentiment Analysis

ACL 2021short

Existing works for aspect-based sentiment analysis (ABSA) have adopted a unified approach, which allows the interactive relations among subtasks. However, we observe that these methods tend to predict polarities based on the literal meaning of aspect and opinion terms and mainly consider relations i…