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Fenglin Liu

21 accepted papers

2025

Ask Patients with Patience: Enabling LLMs for Human-Centric Medical Dialogue with Grounded Reasoning

EMNLP 2025

The severe shortage of medical doctors limits access to timely and reliable healthcare, leaving millions underserved. Large language models (LLMs) offer a potential solution but struggle in real-world clinical interactions. Many LLMs are not grounded in authoritative medical guidelines and fail to t

Cited by 0SourcePDFScholar
2025

DrAgent: Empowering Large Language Models as Medical Agents for Multi-hop Medical Reasoning

EMNLP 2025

Although large language models (LLMs) have demonstrated outperforming human experts in medical examinations, it remains challenging to adopt LLMs in real-world clinical decision-making that typically involves multi-hop medical reasoning. Common practices include prompting commercial LLMs and fine-tu

Cited by 0SourcePDFScholar
2024

Large Language Models Are Poor Clinical Decision-Makers: A Comprehensive Benchmark

EMNLP 2024main

The adoption of large language models (LLMs) to assist clinicians has attracted remarkable attention. Existing works mainly adopt the close-ended question-answering (QA) task with answer options for evaluation. However, many clinical decisions involve answering open-ended questions without pre-set o…

2023

MultiCapCLIP: Auto-Encoding Prompts for Zero-Shot Multilingual Visual Captioning

ACL 2023long

Supervised visual captioning models typically require a large scale of images or videos paired with descriptions in a specific language (i.e., the vision-caption pairs) for training. However, collecting and labeling large-scale datasets is time-consuming and expensive for many scenarios and language…

2023

Multimodal Prompt Learning for Product Title Generation with Extremely Limited Labels

ACL 2023findings

Generating an informative and attractive title for the product is a crucial task for e-commerce. Most existing works follow the standard multimodal natural language generation approaches, e.g., image captioning, and employ the large scale of human-labelled datasets to train desirable models. However…

Cited by 6SourcePDFScholar
2023

Rethinking Semi-Supervised Medical Image Segmentation: A Variance-Reduction Perspective

NeurIPS 2023poster

For medical image segmentation, contrastive learning is the dominant practice to improve the quality of visual representations by contrasting semantically similar and dissimilar pairs of samples. This is enabled by the observation that without accessing ground truth labels, negative examples with tr…

2022

Class-Aware Adversarial Transformers for Medical Image Segmentation

NeurIPS 2022accept

Transformers have made remarkable progress towards modeling long-range dependencies within the medical image analysis domain. However, current transformer-based models suffer from several disadvantages: (1) existing methods fail to capture the important features of the images due to the naive tokeni…

Cited by 163SourcePDFScholar
2022

End-to-end Spoken Conversational Question Answering: Task, Dataset and Model

NAACL 2022findings

In spoken question answering, the systems are designed to answer questions from contiguous text spans within the related speech transcripts. However, the most natural way that human seek or test their knowledge is via human conversations. Therefore, we propose a new Spoken Conversational Question An…

Cited by 37SourcePDFScholar
2022

Expectation-Maximization Contrastive Learning for Compact Video-and-Language Representations

NeurIPS 2022accept

Most video-and-language representation learning approaches employ contrastive learning, e.g., CLIP, to project the video and text features into a common latent space according to the semantic similarities of text-video pairs. However, such learned shared latent spaces are not often optimal, and the…

2022

Retrieve, Reason, and Refine: Generating Accurate and Faithful Patient Instructions

NeurIPS 2022accept

The "Patient Instruction" (PI), which contains critical instructional information provided both to carers and to the patient at the time of discharge, is essential for the patient to manage their condition outside hospital. An accurate and easy-to-follow PI can improve the self-management of patient…

2021

Adaptive Bi-Directional Attention: Exploring Multi-Granularity Representations for Machine Reading Comprehension

ICASSP 2021accepted

Recently, the attention-enhanced multi-layer encoder, such as Transformer, has been extensively studied in Machine Reading Comprehension (MRC). To predict the answer, it is common practice to employ a predictor to draw information only from the final encoder layer which generates the coarse-grained…

Cited by 0SourceScholar
2021

Audio-Oriented Multimodal Machine Comprehension via Dynamic Inter- and Intra-modality Attention

AAAI 2021technical

While Machine Comprehension (MC) has attracted extensive research interests in recent years, existing approaches mainly belong to the category of Machine Reading Comprehension task which mines textual inputs (paragraphs and questions) to predict the answers (choices or text spans). However, there ar…

Cited by 29SourcePDFScholar
2021

Auto-Encoding Knowledge Graph for Unsupervised Medical Report Generation

NeurIPS 2021poster

Medical report generation, which aims to automatically generate a long and coherent report of a given medical image, has been receiving growing research interests. Existing approaches mainly adopt a supervised manner and heavily rely on coupled image-report pairs. However, in the medical domain, bui…

Cited by 135SourcePDFScholar
2021

Competence-based Multimodal Curriculum Learning for Medical Report Generation

ACL 2021long

Medical report generation task, which targets to produce long and coherent descriptions of medical images, has attracted growing research interests recently. Different from the general image captioning tasks, medical report generation is more challenging for data-driven neural models. This is mainly…

2021

Exploring and Distilling Posterior and Prior Knowledge for Radiology Report Generation

CVPR 2021poster

Automatically generating radiology reports can improve current clinical practice in diagnostic radiology. On one hand, it can relieve radiologists from the heavy burden of report writing; On the other hand, it can remind radiologists of abnormalities and avoid the misdiagnosis and missed diagnosis.…

Cited by 393PDFScholar
2021

Sentiment Injected Iteratively Co-Interactive Network for Spoken Language Understanding

ICASSP 2021accepted

Spoken Language Understanding (SLU) is an essential part of the spoken dialogue system, which typically consists of intent detection (ID) and slot filling (SF) tasks. During the conversation, most utterances of people contain rich sentimental information, which is helpful for performing the ID and S…

Cited by 0SourceScholar
2020

Prophet Attention: Predicting Attention with Future Attention

NeurIPS 2020poster

Recently, attention based models have been used extensively in many sequence-to-sequence learning systems. Especially for image captioning, the attention based models are expected to ground correct image regions with proper generated words. However, for each time step in the decoding process, the at…

Cited by 77SourcePDFScholar
2020

Rethinking Skip Connection with Layer Normalization

COLING 2020main

Skip connection is a widely-used technique to improve the performance and the convergence of deep neural networks, which is believed to relieve the difficulty in optimization due to non-linearity by propagating a linear component through the neural network layers. However, from another point of view…

Cited by 0SourcePDFScholar
2019

Aligning Visual Regions and Textual Concepts for Semantic-Grounded Image Representations

NeurIPS 2019poster

In vision-and-language grounding problems, fine-grained representations of the image are considered to be of paramount importance. Most of the current systems incorporate visual features and textual concepts as a sketch of an image. However, plainly inferred representations are usually undesirable i…