Search Results for author: Qin Chen

Found 33 papers, 10 papers with code

基于多质心异质图学习的社交网络用户建模(User Representation Learning based on Multi-centroid Heterogeneous Graph Neural Networks)

no code implementations CCL 2021 Shangyi Ning, Guanying Li, Qin Chen, Zengfeng Huang, Baohua Zhou, Zhongyu Wei

“用户建模已经引起了学术界和工业界的广泛关注。现有的方法大多侧重于将用户间的人际关系融入社区, 而用户生成的内容(如帖子)却没有得到很好的研究。在本文中, 我们通过实际舆情传播相关的分析表明, 在舆情传播过程中对用户属性进行研究的重要作用, 并且提出了用户资料数据的筛选方法。同时, 我们提出了一种通过异构多质心图池为用户捕获更多不同社区特征的建模。我们首先构造了一个由用户和关键字组成的异质图, 并在其上采用了一个异质图神经网络。为了方便用户建模的图表示, 提出了一种多质心图池化机制, 将多质心的集群特征融入到表示学习中。在三个基准数据集上的大量实验表明了该方法的有效性。”

Representation Learning

Boosting Conversational Question Answering with Fine-Grained Retrieval-Augmentation and Self-Check

no code implementations27 Mar 2024 Linhao Ye, Zhikai Lei, Jianghao Yin, Qin Chen, Jie zhou, Liang He

Retrieval-Augmented Generation (RAG) aims to generate more reliable and accurate responses, by augmenting large language models (LLMs) with the external vast and dynamic knowledge.

Conversational Question Answering Retrieval

Enhancing Depression-Diagnosis-Oriented Chat with Psychological State Tracking

no code implementations12 Mar 2024 Yiyang Gu, Yougen Zhou, Qin Chen, Ningning Zhou, Jie zhou, Aimin Zhou, Liang He

Depression-diagnosis-oriented chat aims to guide patients in self-expression to collect key symptoms for depression detection.

Depression Detection Language Modelling +2

DiaHalu: A Dialogue-level Hallucination Evaluation Benchmark for Large Language Models

no code implementations1 Mar 2024 Kedi Chen, Qin Chen, Jie zhou, Yishen He, Liang He

Since large language models (LLMs) achieve significant success in recent years, the hallucination issue remains a challenge, numerous benchmarks are proposed to detect the hallucination.

Hallucination Hallucination Evaluation +1

Let's Rectify Step by Step: Improving Aspect-based Sentiment Analysis with Diffusion Models

1 code implementation23 Feb 2024 Shunyu Liu, Jie zhou, Qunxi Zhu, Qin Chen, Qingchun Bai, Jun Xiao, Liang He

Aspect-Based Sentiment Analysis (ABSA) stands as a crucial task in predicting the sentiment polarity associated with identified aspects within text.

Aspect-Based Sentiment Analysis Aspect-Based Sentiment Analysis (ABSA) +1

Domain Generalization via Causal Adjustment for Cross-Domain Sentiment Analysis

no code implementations22 Feb 2024 Siyin Wang, Jie zhou, Qin Chen, Qi Zhang, Tao Gui, Xuanjing Huang

Domain adaption has been widely adapted for cross-domain sentiment analysis to transfer knowledge from the source domain to the target domain.

Domain Generalization Sentiment Analysis

MELO: Enhancing Model Editing with Neuron-Indexed Dynamic LoRA

1 code implementation19 Dec 2023 Lang Yu, Qin Chen, Jie zhou, Liang He

Large language models (LLMs) have shown great success in various Natural Language Processing (NLP) tasks, whist they still need updates after deployment to fix errors or keep pace with the changing knowledge in the world.

Document Classification Hallucination +2

Mathematical Language Models: A Survey

no code implementations12 Dec 2023 Wentao Liu, Hanglei Hu, Jie zhou, Yuyang Ding, Junsong Li, Jiayi Zeng, Mengliang He, Qin Chen, Bo Jiang, Aimin Zhou, Liang He

In recent years, there has been remarkable progress in leveraging Language Models (LMs), encompassing Pre-trained Language Models (PLMs) and Large-scale Language Models (LLMs), within the domain of mathematics.

Large Language Models at Work in China's Labor Market

no code implementations17 Aug 2023 Qin Chen, Jinfeng Ge, Huaqing Xie, Xingcheng Xu, Yanqing Yang

We then aggregate occupation exposure to the industry level to obtain industry exposure scores.

AgentSims: An Open-Source Sandbox for Large Language Model Evaluation

1 code implementation8 Aug 2023 Jiaju Lin, Haoran Zhao, Aochi Zhang, Yiting Wu, Huqiuyue Ping, Qin Chen

With ChatGPT-like large language models (LLM) prevailing in the community, how to evaluate the ability of LLMs is an open question.

Language Modelling Large Language Model

EduChat: A Large-Scale Language Model-based Chatbot System for Intelligent Education

1 code implementation5 Aug 2023 Yuhao Dan, Zhikai Lei, Yiyang Gu, Yong Li, Jianghao Yin, Jiaju Lin, Linhao Ye, Zhiyan Tie, Yougen Zhou, Yilei Wang, Aimin Zhou, Ze Zhou, Qin Chen, Jie zhou, Liang He, Xipeng Qiu

Currently, EduChat is available online as an open-source project, with its code, data, and model parameters available on platforms (e. g., GitHub https://github. com/icalk-nlp/EduChat, Hugging Face https://huggingface. co/ecnu-icalk ).

Chatbot Language Modelling +1

Causal Intervention-based Prompt Debiasing for Event Argument Extraction

no code implementations4 Oct 2022 Jiaju Lin, Jie zhou, Qin Chen

Prompt-based methods have become increasingly popular among information extraction tasks, especially in low-data scenarios.

Event Argument Extraction

Enhancing Event-Level Sentiment Analysis with Structured Arguments

1 code implementation31 May 2022 Qi Zhang, Jie zhou, Qin Chen, Qinchun Bai, Liang He

Previous studies about event-level sentiment analysis (SA) usually model the event as a topic, a category or target terms, while the structured arguments (e. g., subject, object, time and location) that have potential effects on the sentiment are not well studied.

Event Extraction Sentiment Analysis

A Knowledge-Enhanced Adversarial Model for Cross-lingual Structured Sentiment Analysis

no code implementations31 May 2022 Qi Zhang, Jie zhou, Qin Chen, Qingchun Bai, Jun Xiao, Liang He

Notably, we propose a Knowledge-Enhanced Adversarial Model (\texttt{KEAM}) with both implicit distributed and explicit structural knowledge to enhance the cross-lingual transfer.

Cross-Lingual Transfer Sentiment Analysis

Meta-Weight Graph Neural Network: Push the Limits Beyond Global Homophily

no code implementations19 Mar 2022 Xiaojun Ma, Qin Chen, Yuanyi Ren, Guojie Song, Liang Wang

These experiments show the excellent expressive power of MWGNN in dealing with graph data with various distributions.

Reasoning Chain Based Adversarial Attack for Multi-hop Question Answering

no code implementations17 Dec 2021 Jiayu Ding, Siyuan Wang, Qin Chen, Zhongyu Wei

The results demonstrate significant performance reduction on both answer and supporting facts prediction, verifying the effectiveness of our reasoning chain based attack method for multi-hop reasoning models and the vulnerability of them.

Adversarial Attack Multi-hop Question Answering +2

PoKE: A Prompt-based Knowledge Eliciting Approach for Event Argument Extraction

no code implementations11 Sep 2021 Jiaju Lin, Qin Chen

Eliciting knowledge from pre-trained language models via prompt-based learning has shown great potential in many natural language processing tasks.

Event Argument Extraction Event Extraction +1

ECNUICA at SemEval-2021 Task 11: Rule based Information Extraction Pipeline

no code implementations SEMEVAL 2021 Jiaju Lin, Jing Ling, Zhiwei Wang, Jiawei Liu, Qin Chen, Liang He

The purpose of the task was to extract triples from a paper in the Nature Language Processing field for constructing an Open Research Knowledge Graph.

Open Information Extraction

Magnetoresistance and Kondo effect in the nodal-line semimetal VAs$_2$

no code implementations22 Dec 2020 Shuijin Chen, Zhefeng Lou, Yuxing Zhou, Qin Chen, Binjie Xu, Jianhua Du, Jinhu Yang, Haangdong Wang, Minghu Fang

We performed calculations of the electronic band structure and the Fermi surface as well as measured the longitudinal resistivity $\rho_{xx}(T, H)$, Hall resistivity $\rho_{xy}(T, H)$, and magnetic susceptibility as a function of temperature and various magnetic fields for VAs$_2$ with a monoclinic crystal structure.

Strongly Correlated Electrons

Enhancing Dialogue Symptom Diagnosis with Global Attention and Symptom Graph

no code implementations IJCNLP 2019 Xinzhu Lin, Xiahui He, Qin Chen, Huaixiao Tou, Zhongyu Wei, Ting Chen

In this paper, we first construct a dialogue symptom diagnosis dataset based on an online medical forum with a large amount of dialogues between patients and doctors.

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