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JunFei Liu

10 accepted papers

2026

Detecting Emotional Dynamic Trajectories: An Evaluation Framework for Emotional Support in Language Models

AAAI 2026technical

Emotional support is a core capability in human-AI interaction, with applications including psychological counseling, role play, and companionship. However, existing evaluations of large language models (LLMs) often rely on short, static dialogues and fail to capture the dynamic and long-term nature

Cited by 0SourcePDFScholar
2026

Efficient Transcoder Adaptation for Fine-Tuned Models: Revealing Medical Reasoning Mechanisms in Large Language Models

AAAI 2026technical

Large language models (LLMs) suffer from a lack of decision-making transparency, limiting their deployment in high-stakes domains such as healthcare. We propose a mechanistic interpretability framework that introduces two novel paradigms: Medical Fine-Tuning with Frozen Attention Layers (FTFA) and P

Cited by 0SourcePDFScholar
2024

Alleviating Exposure Bias in Abstractive Summarization via Sequentially Generating and Revising

COLING 2024main

Abstractive summarization commonly suffers from exposure bias caused by supervised teacher-force learning, that a model predicts the next token conditioned on the accurate pre-context during training while on its preceding outputs at inference. Existing solutions bridge this gap through un- or semi-…

Cited by 0SourcePDFScholar
2024

Alleviating Hallucinations Via Supportive Window Indexing in Abstractive Summarization

ICASSP 2024accepted

Abstractive summarization models learned with maximum likelihood estimation (MLE) have been proven to produce hallucinatory content, which heavily limits their real-world applicability. Preceding studies attribute this problem to the semantic insensitivity of MLE, and they compensate for it with add…

Cited by 0SourceScholar
2022

A Gaussian Mixture Model for Dialogue Generation with Dynamic Parameter Sharing Strategy

ICASSP 2022accepted

Existing dialog models are trained with data in an encoder-decoder framework with the same parameters, ignoring the multinomial distribution nature in the dataset. In fact, model improvement and development commonly requires fine-grained modeling on individual data subsets. However, collecting a lab…

Cited by 0SourceScholar
2021

Combining Curriculum Learning and Knowledge Distillation for Dialogue Generation

EMNLP 2021finding

Curriculum learning, a machine training strategy that feeds training instances to the model from easy to hard, has been proven to facilitate the dialogue generation task. Meanwhile, knowledge distillation, a knowledge transformation methodology among teachers and students networks can yield signific…

Cited by 33SourcePDFScholar
2020

Learn with Noisy Data via Unsupervised Loss Correction for Weakly Supervised Reading Comprehension

COLING 2020main

Weakly supervised machine reading comprehension (MRC) task is practical and promising for its easily available and massive training data, but inevitablely introduces noise. Existing related methods usually incorporate extra submodels to help filter noise before the noisy data is input to main models…

Cited by 5SourcePDFScholar