Search Results for author: Gary Geunbae Lee

Found 30 papers, 9 papers with code

Leveraging the Interplay Between Syntactic and Acoustic Cues for Optimizing Korean TTS Pause Formation

no code implementations3 Apr 2024 Yejin Jeon, Yunsu Kim, Gary Geunbae Lee

Contemporary neural speech synthesis models have indeed demonstrated remarkable proficiency in synthetic speech generation as they have attained a level of quality comparable to that of human-produced speech.

Speech Synthesis

Explainable Multi-hop Question Generation: An End-to-End Approach without Intermediate Question Labeling

1 code implementation31 Mar 2024 Seonjeong Hwang, Yunsu Kim, Gary Geunbae Lee

We also prove that our model logically and incrementally increases the complexity of questions, and the generated multi-hop questions are also beneficial for training question answering models.

Question Answering Question Generation +2

Denoising Table-Text Retrieval for Open-Domain Question Answering

1 code implementation26 Mar 2024 Deokhyung Kang, Baikjin Jung, Yunsu Kim, Gary Geunbae Lee

Previous studies in table-text open-domain question answering have two common challenges: firstly, their retrievers can be affected by false-positive labels in training datasets; secondly, they may struggle to provide appropriate evidence for questions that require reasoning across the table.

Denoising Open-Domain Question Answering +2

Autoregressive Score Generation for Multi-trait Essay Scoring

1 code implementation13 Mar 2024 Heejin Do, Yunsu Kim, Gary Geunbae Lee

Recently, encoder-only pre-trained models such as BERT have been successfully applied in automated essay scoring (AES) to predict a single overall score.

Automated Essay Scoring

Optimizing Two-Pass Cross-Lingual Transfer Learning: Phoneme Recognition and Phoneme to Grapheme Translation

no code implementations6 Dec 2023 Wonjun Lee, Gary Geunbae Lee, Yunsu Kim

This research contributes to the advancements of two-pass ASR systems in low-resource languages, offering the potential for improved cross-lingual transfer learning.

Cross-Lingual Transfer speech-recognition +2

Score-balanced Loss for Multi-aspect Pronunciation Assessment

1 code implementation26 May 2023 Heejin Do, Yunsu Kim, Gary Geunbae Lee

With rapid technological growth, automatic pronunciation assessment has transitioned toward systems that evaluate pronunciation in various aspects, such as fluency and stress.

Prompt- and Trait Relation-aware Cross-prompt Essay Trait Scoring

1 code implementation26 May 2023 Heejin Do, Yunsu Kim, Gary Geunbae Lee

Thus, predicting various trait scores of unseen-prompt essays (called cross-prompt essay trait scoring) is a remaining challenge of AES.

Automated Essay Scoring Relation

Hierarchical Pronunciation Assessment with Multi-Aspect Attention

1 code implementation15 Nov 2022 Heejin Do, Yunsu Kim, Gary Geunbae Lee

In this paper, we propose a Hierarchical Pronunciation Assessment with Multi-aspect Attention (HiPAMA) model, which hierarchically represents the granularity levels to directly capture their linguistic structures and introduces multi-aspect attention that reflects associations across aspects at the same level to create more connotative representations.

Multi-Task Learning Phone-level pronunciation scoring +2

Multi-Type Conversational Question-Answer Generation with Closed-ended and Unanswerable Questions

no code implementations24 Oct 2022 Seonjeong Hwang, Yunsu Kim, Gary Geunbae Lee

Conversational question answering (CQA) facilitates an incremental and interactive understanding of a given context, but building a CQA system is difficult for many domains due to the problem of data scarcity.

Answer Generation Conversational Question Answering +1

Schema Encoding for Transferable Dialogue State Tracking

no code implementations COLING 2022 Hyunmin Jeon, Gary Geunbae Lee

In this paper, we propose Schema Encoding for Transferable Dialogue State Tracking (SETDST), which is a neural DST method for effective transfer to new domains.

Dialogue State Tracking Task-Oriented Dialogue Systems

Conversational QA Dataset Generation with Answer Revision

no code implementations COLING 2022 Seonjeong Hwang, Gary Geunbae Lee

Conversational question--answer generation is a task that automatically generates a large-scale conversational question answering dataset based on input passages.

Answer Generation Conversational Question Answering +2

SF-DST: Few-Shot Self-Feeding Reading Comprehension Dialogue State Tracking with Auxiliary Task

no code implementations16 Sep 2022 Jihyun Lee, Gary Geunbae Lee

Few-shot dialogue state tracking (DST) model tracks user requests in dialogue with reliable accuracy even with a small amount of data.

Dialogue State Tracking Reading Comprehension

High Recall Data-to-text Generation with Progressive Edit

no code implementations9 Aug 2022 Choonghan Kim, Gary Geunbae Lee

We observed that when the same target sentence was repeated twice, Transformer (T5) based model generates an output made up of asymmetric sentences from structured inputs.

Data-to-Text Generation Sentence +1

DORA: Toward Policy Optimization for Task-oriented Dialogue System with Efficient Context

1 code implementation7 Jul 2021 Hyunmin Jeon, Gary Geunbae Lee

In this paper, we propose a multi-domain task-oriented dialogue system, called Dialogue System with Optimizing a Recurrent Action Policy using Efficient Context (DORA), that uses SL, with subsequently applied RL to optimize dialogue systems using a recurrent dialogue policy.

Reinforcement Learning (RL) Task-Oriented Dialogue Systems

Domain State Tracking for a Simplified Dialogue System

no code implementations11 Mar 2021 Hyunmin Jeon, Gary Geunbae Lee

In this paper, we present DoTS (Domain State Tracking for a Simplified Dialogue System), a task-oriented dialogue system that uses a simplified input context instead of the entire dialogue history.

Task-Oriented Dialogue Systems

Grammatical Error Annotation for Korean Learners of Spoken English

no code implementations LREC 2012 Hongsuck Seo, Kyusong Lee, Gary Geunbae Lee, Soo-Ok Kweon, Hae-Ri Kim

The goal of our research is to build a grammatical error-tagged corpus for Korean learners of Spoken English dubbed Postech Learner Corpus.

Grammatical Error Detection

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