Search Results for author: Ji Wu

Found 46 papers, 19 papers with code

Med-2E3: A 2D-Enhanced 3D Medical Multimodal Large Language Model

no code implementations19 Nov 2024 Yiming Shi, Xun Zhu, Ying Hu, Chenyi Guo, Miao Li, Ji Wu

To the best of our knowledge, Med-2E3 is the first MLLM to integrate both 3D and 2D features for 3D medical image analysis.

Language Modelling Large Language Model +5

Uni-Med: A Unified Medical Generalist Foundation Model For Multi-Task Learning Via Connector-MoE

1 code implementation26 Sep 2024 Xun Zhu, Ying Hu, Fanbin Mo, Miao Li, Ji Wu

To mitigate the tug-of-war problem of multi-modal multi-task optimization in MLLMs, recent advances primarily focus on improving the LLM components, while neglecting the connector that bridges the gap between modalities.

Image Classification Multi-Task Learning +5

Enhancing elusive clues in knowledge learning by contrasting attention of language models

1 code implementation26 Sep 2024 Jian Gao, Xiao Zhang, Ji Wu, Miao Li

Causal language models acquire vast amount of knowledge from general text corpus during pretraining, but the efficiency of knowledge learning is known to be unsatisfactory, especially when learning from knowledge-dense and small-sized corpora.

Data Augmentation Language Modelling +1

Reliable and diverse evaluation of LLM medical knowledge mastery

no code implementations22 Sep 2024 Yuxuan Zhou, Xien Liu, Chen Ning, Xiao Zhang, Ji Wu

Finally, these produced predicate variants are converted into textual language, resulting in a series of reliable and diverse test samples to evaluate whether LLMs fully master the given medical factual knowledge point.

Diversity MedQA

Co-occurrence is not Factual Association in Language Models

1 code implementation21 Sep 2024 Xiao Zhang, Miao Li, Ji Wu

Pretrained language models can encode a large amount of knowledge and utilize it for various reasoning tasks, yet they can still struggle to learn novel factual knowledge effectively from finetuning on limited textual demonstrations.

Multi-hop Question Answering Question Answering

Spontaneous Speech-Based Suicide Risk Detection Using Whisper and Large Language Models

no code implementations6 Jun 2024 Ziyun Cui, Chang Lei, Wen Wu, Yinan Duan, Diyang Qu, Ji Wu, Runsen Chen, Chao Zhang

The early detection of suicide risk is important since it enables the intervention to prevent potential suicide attempts.

MultifacetEval: Multifaceted Evaluation to Probe LLMs in Mastering Medical Knowledge

1 code implementation5 Jun 2024 Yuxuan Zhou, Xien Liu, Chen Ning, Ji Wu

In this paper, we aim to explore the causes of this gap by employing a multifaceted examination schema to systematically probe the actual mastery of medical knowledge by current LLMs.

MedQA

Conditional Language Learning with Context

1 code implementation4 Jun 2024 Xiao Zhang, Miao Li, Ji Wu

In this fashion, conditional finetuning achieves selective learning from a corpus, learning knowledge useful for downstream tasks while avoiding learning useless corpus statistics like topic biases.

Causal Language Modeling Language Modelling

Dynamic feature selection in medical predictive monitoring by reinforcement learning

no code implementations30 May 2024 Yutong Chen, Jiandong Gao, Ji Wu

Our approach addresses this limitation by enabling the selection of time-varying feature subsets for each patient.

feature selection reinforcement-learning +2

TinyLLaVA Factory: A Modularized Codebase for Small-scale Large Multimodal Models

2 code implementations20 May 2024 Junlong Jia, Ying Hu, Xi Weng, Yiming Shi, Miao Li, Xingjian Zhang, Baichuan Zhou, Ziyu Liu, Jie Luo, Lei Huang, Ji Wu

We present TinyLLaVA Factory, an open-source modular codebase for small-scale large multimodal models (LMMs) with a focus on simplicity of code implementations, extensibility of new features, and reproducibility of training results.

Philosophy

UniFS: Universal Few-shot Instance Perception with Point Representations

1 code implementation30 Apr 2024 Sheng Jin, Ruijie Yao, Lumin Xu, Wentao Liu, Chen Qian, Ji Wu, Ping Luo

In this paper, we propose UniFS, a universal few-shot instance perception model that unifies a wide range of instance perception tasks by reformulating them into a dynamic point representation learning framework.

Few-Shot Learning Few-Shot Object Detection +4

Bayesian Example Selection Improves In-Context Learning for Speech, Text, and Visual Modalities

no code implementations23 Apr 2024 Siyin Wang, Chao-Han Huck Yang, Ji Wu, Chao Zhang

Large language models (LLMs) can adapt to new tasks through in-context learning (ICL) based on a few examples presented in dialogue history without any model parameter update.

In-Context Learning

M$^3$AV: A Multimodal, Multigenre, and Multipurpose Audio-Visual Academic Lecture Dataset

no code implementations21 Mar 2024 Zhe Chen, Heyang Liu, Wenyi Yu, Guangzhi Sun, Hongcheng Liu, Ji Wu, Chao Zhang, Yu Wang, Yanfeng Wang

Although multiple academic video datasets have been constructed and released, few of them support both multimodal content recognition and understanding tasks, which is partially due to the lack of high-quality human annotations.

Diversity Script Generation +3

TinyLLaVA: A Framework of Small-scale Large Multimodal Models

2 code implementations22 Feb 2024 Baichuan Zhou, Ying Hu, Xi Weng, Junlong Jia, Jie Luo, Xien Liu, Ji Wu, Lei Huang

We present the TinyLLaVA framework that provides a unified perspective in designing and analyzing the small-scale Large Multimodal Models (LMMs).

Visual Question Answering

Transferring speech-generic and depression-specific knowledge for Alzheimer's disease detection

no code implementations6 Oct 2023 Ziyun Cui, Wen Wu, Wei-Qiang Zhang, Ji Wu, Chao Zhang

Apart from the knowledge from speech-generic representations, this paper also proposes to simultaneously transfer the knowledge from a speech depression detection task based on the high comorbidity rates of depression and AD.

Alzheimer's Disease Detection Depression Detection +1

QuadricsNet: Learning Concise Representation for Geometric Primitives in Point Clouds

1 code implementation25 Sep 2023 Ji Wu, Huai Yu, Wen Yang, Gui-Song Xia

This paper presents a novel framework to learn a concise geometric primitive representation for 3D point clouds.

Can Whisper perform speech-based in-context learning?

no code implementations13 Sep 2023 Siyin Wang, Chao-Han Huck Yang, Ji Wu, Chao Zhang

Language-level adaptation experiments using Chinese dialects showed that when applying SICL to isolated word ASR, consistent and considerable relative WER reductions can be achieved using Whisper models of any size on two dialects, which is on average 32. 3%.

Automatic Speech Recognition Automatic Speech Recognition (ASR) +3

GKGNet: Group K-Nearest Neighbor based Graph Convolutional Network for Multi-Label Image Recognition

1 code implementation28 Aug 2023 Ruijie Yao, Sheng Jin, Lumin Xu, Wang Zeng, Wentao Liu, Chen Qian, Ping Luo, Ji Wu

Multi-Label Image Recognition (MLIR) is a challenging task that aims to predict multiple object labels in a single image while modeling the complex relationships between labels and image regions.

graph construction Multi-Label Classification +1

Simple Data Augmentation Techniques for Chinese Disease Normalization

no code implementations2 Jun 2023 Wenqian Cui, Xiangling Fu, Shaohui Liu, Mingjun Gu, Xien Liu, Ji Wu, Irwin King

Nevertheless, the most significant obstacle to existing disease name normalization systems is the severe shortage of training data.

Data Augmentation

THiFLY Research at SemEval-2023 Task 7: A Multi-granularity System for CTR-based Textual Entailment and Evidence Retrieval

1 code implementation2 Jun 2023 Yuxuan Zhou, Ziyu Jin, Meiwei Li, Miao Li, Xien Liu, Xinxin You, Ji Wu

The NLI4CT task aims to entail hypotheses based on Clinical Trial Reports (CTRs) and retrieve the corresponding evidence supporting the justification.

Natural Language Inference Retrieval +1

How can Deep Learning Retrieve the Write-Missing Additional Diagnosis from Chinese Electronic Medical Record For DRG

no code implementations28 Mar 2023 Shaohui Liu, Xien Liu, Ji Wu

Under the circumstance that countries generally start to adopt DRG enrollment and payment, the problem of write-missing diagnosis is a common and serious problem.

Understanding the Failure of Batch Normalization for Transformers in NLP

1 code implementation11 Oct 2022 Jiaxi Wang, Ji Wu, Lei Huang

Batch Normalization (BN) is a core and prevalent technique in accelerating the training of deep neural networks and improving the generalization on Computer Vision (CV) tasks.

Image Classification Language Modelling +3

From Static to Dynamic Structures: Improving Binding Affinity Prediction with Graph-Based Deep Learning

1 code implementation19 Aug 2022 Yaosen Min, Ye Wei, Peizhuo Wang, Xiaoting Wang, Han Li, Nian Wu, Stefan Bauer, Shuxin Zheng, Yu Shi, Yingheng Wang, Ji Wu, Dan Zhao, Jianyang Zeng

Here, an MD dataset containing 3, 218 different protein-ligand complexes is curated, and Dynaformer, a graph-based deep learning model is further developed to predict the binding affinities by learning the geometric characteristics of the protein-ligand interactions from the MD trajectories.

Drug Discovery

Feature Forgetting in Continual Representation Learning

no code implementations26 May 2022 Xiao Zhang, Dejing Dou, Ji Wu

To study the feature forgetting problem, we create a synthetic dataset to identify and visualize the prevalence of feature forgetting in neural networks.

Continual Learning Representation Learning

Table-based Fact Verification with Self-adaptive Mixture of Experts

1 code implementation Findings (ACL) 2022 Yuxuan Zhou, Xien Liu, Kaiyin Zhou, Ji Wu

The table-based fact verification task has recently gained widespread attention and yet remains to be a very challenging problem.

Fact Verification Logical Reasoning +2

Distilling effective supervision for robust medical image segmentation with noisy labels

no code implementations21 Jun 2021 Jialin Shi, Ji Wu

In particular, we explicitly estimate the uncertainty of every pixel as pixel-wise noise estimation, and propose pixel-wise robust learning by using both the original labels and pseudo labels.

Image Segmentation Learning with noisy labels +4

Model information as an analysis tool in deep learning

no code implementations1 Jan 2021 Xiao Zhang, Di Hu, Xingjian Li, Dejing Dou, Ji Wu

We demonstrate using model information as a general analysis tool to gain insight into problems that arise in deep learning.

Deep Learning

Information distance for neural network functions

no code implementations1 Jan 2021 Xiao Zhang, Dejing Dou, Ji Wu

We provide a practical distance measure in the space of functions parameterized by neural networks.

Measuring Information Transfer in Neural Networks

no code implementations16 Sep 2020 Xiao Zhang, Xingjian Li, Dejing Dou, Ji Wu

We propose a practical measure of the generalizable information in a neural network model based on prequential coding, which we term Information Transfer ($L_{IT}$).

Continual Learning Transfer Learning

Applications of BERT Based Sequence Tagging Models on Chinese Medical Text Attributes Extraction

no code implementations22 Aug 2020 Gang Zhao, Teng Zhang, Chenxiao Wang, Ping Lv, Ji Wu

We convert the Chinese medical text attributes extraction task into a sequence tagging or machine reading comprehension task.

Diversity Machine Reading Comprehension

GCN-BMP: Investigating Graph Representation Learning for DDI Prediction Task

1 code implementation Methods 2020 Xin Chen, Xien Liu, Ji Wu

To alleviate this problem, we investigate the utilization of the end-to-end graph representation learning for the DDI prediction task.

Graph Representation Learning Inductive Bias

Label-guided Learning for Text Classification

no code implementations25 Feb 2020 Xien Liu, Song Wang, Xiao Zhang, Xinxin You, Ji Wu, Dejing Dou

In this study, we propose a label-guided learning framework LguidedLearn for text representation and classification.

General Classification Representation Learning +2

Language-independent Cross-lingual Contextual Representations

no code implementations25 Sep 2019 Xiao Zhang, Song Wang, Dejing Dou, Xien Liu, Thien Huu Nguyen, Ji Wu

Contextual representation models like BERT have achieved state-of-the-art performance on a diverse range of NLP tasks.

Transfer Learning Zero-Shot Cross-Lingual Transfer

Learning Conceptual-Contextual Embeddings for Medical Text

no code implementations16 Aug 2019 Xiao Zhang, Dejing Dou, Ji Wu

External knowledge is often useful for natural language understanding tasks.

Natural Language Understanding

Pick-and-Learn: Automatic Quality Evaluation for Noisy-Labeled Image Segmentation

no code implementations27 Jul 2019 Haidong Zhu, Jialin Shi, Ji Wu

We propose a solution for network automatically evaluating the relative quality of the labels in the training set and using good ones to tune the network parameters.

Image Segmentation Segmentation +1

Delta Embedding Learning

no code implementations ACL 2019 Xiao Zhang, Ji Wu, Dejing Dou

Evaluation also confirms the tuned word embeddings have better semantic properties.

Reading Comprehension Word Embeddings

Exploiting Sentence Embedding for Medical Question Answering

no code implementations15 Nov 2018 Yu Hao, Xien Liu, Ji Wu, Ping Lv

The learning framework consists of two main parts: 1) a sentence embedding producing module, and 2) a scoring module.

Question Answering Sentence +2

Medical Exam Question Answering with Large-scale Reading Comprehension

no code implementations28 Feb 2018 Xiao Zhang, Ji Wu, ZhiYang He, Xien Liu, Ying Su

Reading and understanding text is one important component in computer aided diagnosis in clinical medicine, also being a major research problem in the field of NLP.

MedQA Question Answering +1

The Monkeytyping Solution to the YouTube-8M Video Understanding Challenge

1 code implementation16 Jun 2017 He-Da Wang, Teng Zhang, Ji Wu

This article describes the final solution of team monkeytyping, who finished in second place in the YouTube-8M video understanding challenge.

General Classification Video Classification +1

Simple Deep Random Model Ensemble

no code implementations5 May 2013 Xiao-Lei Zhang, Ji Wu

(ii) Based on the above two views, we propose a very simple deep learning algorithm, named deep random model ensemble (DRME).

Clustering Clustering Ensemble +3

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