Search Results for author: Che Liu

Found 27 papers, 8 papers with code

Inductive-Deductive Strategy Reuse for Multi-Turn Instructional Dialogues

no code implementations17 Apr 2024 Jiao Ou, Jiayu Wu, Che Liu, Fuzheng Zhang, Di Zhang, Kun Gai

Existing methods target instructions from real instruction dialogues as a learning goal and fine-tune a user simulator for posing instructions.

BIMCV-R: A Landmark Dataset for 3D CT Text-Image Retrieval

no code implementations24 Mar 2024 Yinda Chen, Che Liu, Xiaoyu Liu, Rossella Arcucci, Zhiwei Xiong

The burgeoning integration of 3D medical imaging into healthcare has led to a substantial increase in the workload of medical professionals.

Medical Image Retrieval Retrieval

Zero-Shot ECG Classification with Multimodal Learning and Test-time Clinical Knowledge Enhancement

no code implementations11 Mar 2024 Che Liu, Zhongwei Wan, Cheng Ouyang, Anand Shah, Wenjia Bai, Rossella Arcucci

Through multimodal learning on ECG records and associated reports, MERL is capable of performing zero-shot ECG classification with text prompts, eliminating the need for training data in downstream tasks.

Clinical Knowledge Descriptive +5

Electrocardiogram Instruction Tuning for Report Generation

no code implementations7 Mar 2024 Zhongwei Wan, Che Liu, Xin Wang, Chaofan Tao, Hui Shen, Zhenwu Peng, Jie Fu, Rossella Arcucci, Huaxiu Yao, Mi Zhang

Electrocardiogram (ECG) serves as the primary non-invasive diagnostic tool for cardiac conditions monitoring, are crucial in assisting clinicians.

ARKS: Active Retrieval in Knowledge Soup for Code Generation

no code implementations19 Feb 2024 Hongjin Su, Shuyang Jiang, Yuhang Lai, Haoyuan Wu, Boao Shi, Che Liu, Qian Liu, Tao Yu

Recently the retrieval-augmented generation (RAG) paradigm has raised much attention for its potential in incorporating external knowledge into large language models (LLMs) without further training.

Code Generation Retrieval

Enhancing Role-playing Systems through Aggressive Queries: Evaluation and Improvement

no code implementations16 Feb 2024 Yihong Tang, Jiao Ou, Che Liu, Fuzheng Zhang, Di Zhang, Kun Gai

Experiments on models improved by RoleAD indicate that our adversarial dataset ameliorates this deficiency, with the improvements demonstrating a degree of generalizability in ordinary scenarios.

Dialogue Generation

Freeze the backbones: A Parameter-Efficient Contrastive Approach to Robust Medical Vision-Language Pre-training

no code implementations2 Jan 2024 Jiuming Qin, Che Liu, Sibo Cheng, Yike Guo, Rossella Arcucci

Modern healthcare often utilises radiographic images alongside textual reports for diagnostics, encouraging the use of Vision-Language Self-Supervised Learning (VL-SSL) with large pre-trained models to learn versatile medical vision representations.

Image Classification Image Segmentation +5

Efficient Large Language Models: A Survey

3 code implementations6 Dec 2023 Zhongwei Wan, Xin Wang, Che Liu, Samiul Alam, Yu Zheng, Jiachen Liu, Zhongnan Qu, Shen Yan, Yi Zhu, Quanlu Zhang, Mosharaf Chowdhury, Mi Zhang

Large Language Models (LLMs) have demonstrated remarkable capabilities in important tasks such as natural language understanding, language generation, and complex reasoning and have the potential to make a substantial impact on our society.

Natural Language Understanding Text Generation

G2D: From Global to Dense Radiography Representation Learning via Vision-Language Pre-training

no code implementations3 Dec 2023 Che Liu, Cheng Ouyang, Sibo Cheng, Anand Shah, Wenjia Bai, Rossella Arcucci

G2D achieves superior performance across 6 medical imaging tasks and 25 diseases, particularly in semantic segmentation, which necessitates fine-grained, semantically-grounded image features.

object-detection Object Detection +5

Image Recognition of Oil Leakage Area Based on Logical Semantic Discrimination

no code implementations3 Nov 2023 Weiying Lin, Che Liu, Xin Zhang, Zhen Wei, Sizhe Li, Xun Ma

The process begins with histogram equalization to enhance the original image, followed by the use of Mask RCNN to identify the preliminary positions and outlines of oil tanks, the ground, and areas of potential oil contamination.

DialogBench: Evaluating LLMs as Human-like Dialogue Systems

no code implementations3 Nov 2023 Jiao Ou, Junda Lu, Che Liu, Yihong Tang, Fuzheng Zhang, Di Zhang, Kun Gai

In this paper, we propose DialogBench, a dialogue evaluation benchmark that contains 12 dialogue tasks to probe the capabilities of LLMs as human-like dialogue systems should have.

Dialogue Evaluation

Efficient deep data assimilation with sparse observations and time-varying sensors

1 code implementation24 Oct 2023 Sibo Cheng, Che Liu, Yike Guo, Rossella Arcucci

We introduce a novel variational DA scheme, named Voronoi-tessellation Inverse operator for VariatIonal Data assimilation (VIVID), that incorporates a DL inverse operator into the assimilation objective function.

OpenAgents: An Open Platform for Language Agents in the Wild

2 code implementations16 Oct 2023 Tianbao Xie, Fan Zhou, Zhoujun Cheng, Peng Shi, Luoxuan Weng, Yitao Liu, Toh Jing Hua, Junning Zhao, Qian Liu, Che Liu, Leo Z. Liu, Yiheng Xu, Hongjin Su, Dongchan Shin, Caiming Xiong, Tao Yu

Language agents show potential in being capable of utilizing natural language for varied and intricate tasks in diverse environments, particularly when built upon large language models (LLMs).

2D Object Detection

IMITATE: Clinical Prior Guided Hierarchical Vision-Language Pre-training

no code implementations11 Oct 2023 Che Liu, Sibo Cheng, Miaojing Shi, Anand Shah, Wenjia Bai, Rossella Arcucci

The framework derives multi-level visual features from the chest X-ray (CXR) images and separately aligns these features with the descriptive and the conclusive text encoded in the hierarchical medical report.

Contrastive Learning Descriptive

Parrot: Enhancing Multi-Turn Chat Models by Learning to Ask Questions

no code implementations11 Oct 2023 Yuchong Sun, Che Liu, Jinwen Huang, Ruihua Song, Fuzheng Zhang, Di Zhang, Zhongyuan Wang, Kun Gai

In this paper, we address these challenges by introducing Parrot, a highly scalable solution designed to automatically generate high-quality instruction-tuning data, which are then used to enhance the effectiveness of chat models in multi-turn conversations.

Attribute Instruction Following

Utilizing Synthetic Data for Medical Vision-Language Pre-training: Bypassing the Need for Real Images

no code implementations10 Oct 2023 Che Liu, Anand Shah, Wenjia Bai, Rossella Arcucci

The advent of text-guided generative models raises a compelling question: Can VLP be implemented solely with synthetic images generated from genuine radiology reports, thereby mitigating the need for extensively pairing and curating image-text datasets?

Image Classification object-detection +2

ETP: Learning Transferable ECG Representations via ECG-Text Pre-training

no code implementations6 Sep 2023 Che Liu, Zhongwei Wan, Sibo Cheng, Mi Zhang, Rossella Arcucci

In the domain of cardiovascular healthcare, the Electrocardiogram (ECG) serves as a critical, non-invasive diagnostic tool.

Language Modelling Representation Learning +2

M-FLAG: Medical Vision-Language Pre-training with Frozen Language Models and Latent Space Geometry Optimization

1 code implementation17 Jul 2023 Che Liu, Sibo Cheng, Chen Chen, Mengyun Qiao, Weitong Zhang, Anand Shah, Wenjia Bai, Rossella Arcucci

The proposed method, named Medical vision-language pre-training with Frozen language models and Latent spAce Geometry optimization (M-FLAG), leverages a frozen language model for training stability and efficiency and introduces a novel orthogonality loss to harmonize the latent space geometry.

Image Classification Language Modelling +3

Generative Text-Guided 3D Vision-Language Pretraining for Unified Medical Image Segmentation

no code implementations7 Jun 2023 Yinda Chen, Che Liu, Wei Huang, Sibo Cheng, Rossella Arcucci, Zhiwei Xiong

To address these challenges, we present Generative Text-Guided 3D Vision-Language Pretraining for Unified Medical Image Segmentation (GTGM), a framework that extends of VLP to 3D medical images without relying on paired textual descriptions.

Computed Tomography (CT) Contrastive Learning +4

Med-UniC: Unifying Cross-Lingual Medical Vision-Language Pre-Training by Diminishing Bias

1 code implementation NeurIPS 2023 Zhongwei Wan, Che Liu, Mi Zhang, Jie Fu, Benyou Wang, Sibo Cheng, Lei Ma, César Quilodrán-Casas, Rossella Arcucci

Med-UniC reaches superior performance across 5 medical image tasks and 10 datasets encompassing over 30 diseases, offering a versatile framework for unifying multi-modal medical data within diverse linguistic communities.

Disentanglement

Frozen Language Model Helps ECG Zero-Shot Learning

no code implementations22 Mar 2023 Jun Li, Che Liu, Sibo Cheng, Rossella Arcucci, Shenda Hong

In downstream classification tasks, METS achieves around 10% improvement in performance without using any annotated data via zero-shot classification, compared to other supervised and SSL baselines that rely on annotated data.

Language Modelling Self-Supervised Learning +1

Spectral Cross-Domain Neural Network with Soft-adaptive Threshold Spectral Enhancement

1 code implementation10 Jan 2023 Che Liu, Sibo Cheng, Weiping Ding, Rossella Arcucci

The robust performance of SCDNN provides a new perspective to exploit knowledge across deep learning models from time and spectral domains.

Electrocardiography (ECG) Feature Engineering +1

DialogueCSE: Dialogue-based Contrastive Learning of Sentence Embeddings

1 code implementation EMNLP 2021 Che Liu, Rui Wang, Jinghua Liu, Jian Sun, Fei Huang, Luo Si

Learning sentence embeddings from dialogues has drawn increasing attention due to its low annotation cost and high domain adaptability.

Contrastive Learning Semantic Textual Similarity +2

Sequential Sentence Matching Network for Multi-turn Response Selection in Retrieval-based Chatbots

no code implementations16 May 2020 Chao Xiong, Che Liu, Zijun Xu, Junfeng Jiang, Jieping Ye

In this work, we propose a matching network, called sequential sentence matching network (S2M), to use the sentence-level semantic information to address the problem.

Retrieval Sentence +1

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