Search Results for author: Junjie Chen

Found 48 papers, 25 papers with code

APIRecX: Cross-Library API Recommendation via Pre-Trained Language Model

no code implementations EMNLP 2021 Yuning Kang, Zan Wang, Hongyu Zhang, Junjie Chen, Hanmo You

APIRecX can migrate the knowledge of existing libraries to a new library, and can recommend APIs that are previously regarded as OOV.

Language Modeling Language Modelling

Modeling Syntactic-Semantic Dependency Correlations in Semantic Role Labeling Using Mixture Models

1 code implementation ACL 2022 Junjie Chen, Xiangheng He, Yusuke Miyao

In this paper, we propose a mixture model-based end-to-end method to model the syntactic-semantic dependency correlation in Semantic Role Labeling (SRL).

Semantic Role Labeling

Enhancing LLM-Based Agents via Global Planning and Hierarchical Execution

1 code implementation23 Apr 2025 Junjie Chen, Haitao Li, Jingli Yang, Yiqun Liu, Qingyao Ai

We evaluate GoalAct on LegalAgentBench, a benchmark with multiple types of legal tasks that require the use of multiple types of tools.

Task Planning

Overlap-Aware Feature Learning for Robust Unsupervised Domain Adaptation for 3D Semantic Segmentation

no code implementations2 Apr 2025 Junjie Chen, Yuecong Xu, Haosheng Li, Kemi Ding

3D point cloud semantic segmentation (PCSS) is a cornerstone for environmental perception in robotic systems and autonomous driving, enabling precise scene understanding through point-wise classification.

3D Semantic Segmentation Adversarial Attack +4

Robust Unsupervised Domain Adaptation for 3D Point Cloud Segmentation Under Source Adversarial Attacks

no code implementations2 Apr 2025 Haosheng Li, Yuecong Xu, Junjie Chen, Kemi Ding

Unsupervised domain adaptation (UDA) frameworks have shown good generalization capabilities for 3D point cloud semantic segmentation models on clean data.

Adversarial Robustness Decoder +4

Recurrent Feature Mining and Keypoint Mixup Padding for Category-Agnostic Pose Estimation

1 code implementation27 Mar 2025 Junjie Chen, Weilong Chen, Yifan Zuo, Yuming Fang

Hence, these works neglect to mine fine-grained and structure-aware (FGSA) features from both support and query images, which are crucial for pixel-level keypoint localization.

Category-Agnostic Pose Estimation Pose Estimation

The Design of Monopoly Information Broker

no code implementations25 Mar 2025 Junjie Chen, Takuro Yamashita

An information broker incentivizes consumers to share their information, while designing an information structure to shape the market segmentation.

Seeing Sarcasm Through Different Eyes: Analyzing Multimodal Sarcasm Perception in Large Vision-Language Models

1 code implementation15 Mar 2025 Junjie Chen, Xuyang Liu, Subin Huang, Linfeng Zhang, Hang Yu

With the advent of large vision-language models (LVLMs) demonstrating increasingly human-like abilities, a pivotal question emerges: do different LVLMs interpret multimodal sarcasm differently, and can a single model grasp sarcasm from multiple perspectives like humans?

From Reusing to Forecasting: Accelerating Diffusion Models with TaylorSeers

2 code implementations10 Mar 2025 Jiacheng Liu, Chang Zou, Yuanhuiyi Lyu, Junjie Chen, Linfeng Zhang

To solve this problem, feature caching has been proposed to accelerate diffusion models by caching the features in the previous timesteps and then reusing them in the following timesteps.

Viewport-Unaware Blind Omnidirectional Image Quality Assessment: A Flexible and Effective Paradigm

1 code implementation8 Mar 2025 Jiebin Yan, Kangcheng Wu, Junjie Chen, Ziwen Tan, Yuming Fang

Most of existing blind omnidirectional image quality assessment (BOIQA) models rely on viewport generation by modeling user viewing behavior or transforming omnidirectional images (OIs) into varying formats; however, these methods are either computationally expensive or less scalable.

ERP Image Quality Assessment

CaseGen: A Benchmark for Multi-Stage Legal Case Documents Generation

1 code implementation25 Feb 2025 Haitao Li, Jiaying Ye, Yiran Hu, Jia Chen, Qingyao Ai, Yueyue Wu, Junjie Chen, Yifan Chen, Cheng Luo, Quan Zhou, Yiqun Liu

To the best of our knowledge, CaseGen is the first benchmark designed to evaluate LLMs in the context of legal case document generation.

Legal Reasoning

Omnidirectional Image Quality Captioning: A Large-scale Database and A New Model

1 code implementation21 Feb 2025 Jiebin Yan, Ziwen Tan, Yuming Fang, Junjie Chen, Wenhui Jiang, Zhou Wang

The fast growing application of omnidirectional images calls for effective approaches for omnidirectional image quality assessment (OIQA).

Image Quality Assessment

Multitask Auxiliary Network for Perceptual Quality Assessment of Non-Uniformly Distorted Omnidirectional Images

1 code implementation20 Jan 2025 Jiebin Yan, Jiale Rao, Junjie Chen, Ziwen Tan, Weide Liu, Yuming Fang

The proposed network mainly consists of three parts: a backbone for extracting multiscale features from the viewport sequence, a multitask feature selection module for dynamically allocating specific features to different tasks, and auxiliary sub-networks for guiding the proposed model to capture local distortion and global quality change.

feature selection Image Quality Assessment +1

LegalAgentBench: Evaluating LLM Agents in Legal Domain

1 code implementation23 Dec 2024 Haitao Li, Junjie Chen, Jingli Yang, Qingyao Ai, Wei Jia, Youfeng Liu, Kai Lin, Yueyue Wu, Guozhi Yuan, Yiran Hu, Wuyue Wang, Yiqun Liu, Minlie Huang

Therefore, we propose LegalAgentBench, a comprehensive benchmark specifically designed to evaluate LLM Agents in the Chinese legal domain.

Decision Making

ProsodyFM: Unsupervised Phrasing and Intonation Control for Intelligible Speech Synthesis

no code implementations16 Dec 2024 Xiangheng He, Junjie Chen, Zixing Zhang, Björn W. Schuller

We propose ProsodyFM, a prosody-aware text-to-speech synthesis (TTS) model with a flow-matching (FM) backbone that aims to enhance the phrasing and intonation aspects of prosody.

Speech Synthesis text-to-speech +2

LLMs-as-Judges: A Comprehensive Survey on LLM-based Evaluation Methods

1 code implementation7 Dec 2024 Haitao Li, Qian Dong, Junjie Chen, Huixue Su, Yujia Zhou, Qingyao Ai, Ziyi Ye, Yiqun Liu

Finally, we provide a detailed analysis of the limitations of LLM judges and discuss potential future directions.

CalibraEval: Calibrating Prediction Distribution to Mitigate Selection Bias in LLMs-as-Judges

1 code implementation20 Oct 2024 Haitao Li, Junjie Chen, Qingyao Ai, Zhumin Chu, Yujia Zhou, Qian Dong, Yiqun Liu

The use of large language models (LLMs) as automated evaluation tools to assess the quality of generated natural language, known as LLMs-as-Judges, has demonstrated promising capabilities and is rapidly gaining widespread attention.

Fairness Prediction +1

An Automatic and Cost-Efficient Peer-Review Framework for Language Generation Evaluation

no code implementations16 Oct 2024 Junjie Chen, Weihang Su, Zhumin Chu, Haitao Li, Qinyao Ai, Yiqun Liu, Min Zhang, Shaoping Ma

Moreover, our study highlights the impact of prompt strategies and evaluation formats on evaluation performance, offering guidance for method optimization in the future.

Dialogue Generation Question Answering

Machine Unlearning in Forgettability Sequence

no code implementations9 Oct 2024 Junjie Chen, Qian Chen, Jian Lou, XiaoYu Zhang, Kai Wu, Zilong Wang

Machine unlearning (MU) is becoming a promising paradigm to achieve the "right to be forgotten", where the training trace of any chosen data points could be eliminated, while maintaining the model utility on general testing samples after unlearning.

Machine Unlearning

Improving Unsupervised Constituency Parsing via Maximizing Semantic Information

1 code implementation3 Oct 2024 Junjie Chen, Xiangheng He, Yusuke Miyao, Danushka Bollegala

In this paper, we introduce a novel objective for training unsupervised parsers: maximizing the information between constituent structures and sentence semantics (SemInfo).

Constituency Parsing Sentence

Continual Learning for Adaptable Car-Following in Dynamic Traffic Environments

no code implementations17 Jul 2024 Xianda Chen, PakHin Tiu, Xu Han, Junjie Chen, Yuanfei Wu, Xinhu Zheng, Meixin Zhu

The continual evolution of autonomous driving technology requires car-following models that can adapt to diverse and dynamic traffic environments.

Autonomous Driving Continual Learning

GenFollower: Enhancing Car-Following Prediction with Large Language Models

no code implementations8 Jul 2024 Xianda Chen, Mingxing Peng, PakHin Tiu, Yuanfei Wu, Junjie Chen, Meixin Zhu, Xinhu Zheng

In this study, we propose GenFollower, a novel zero-shot prompting approach that leverages large language models (LLMs) to address these challenges.

Autonomous Driving Language Modeling +3

InterCLIP-MEP: Interactive CLIP and Memory-Enhanced Predictor for Multi-modal Sarcasm Detection

1 code implementation24 Jun 2024 Junjie Chen, Hang Yu, Subin Huang, Sanmin Liu, Linfeng Zhang

Sarcasm in social media, often expressed through text-image combinations, poses challenges for sentiment analysis and intention mining.

Sarcasm Detection Sentiment Analysis

Unsupervised Parsing by Searching for Frequent Word Sequences among Sentences with Equivalent Predicate-Argument Structures

no code implementations18 Apr 2024 Junjie Chen, Xiangheng He, Danushka Bollegala, Yusuke Miyao

Linguists identify the constituent by evaluating a set of Predicate-Argument Structure (PAS) equivalent sentences where we find the constituent appears more frequently than non-constituents (i. e., the constituent corresponds to a frequent word sequence within the sentence set).

Constituency Parsing Sentence

Meta-Point Learning and Refining for Category-Agnostic Pose Estimation

1 code implementation CVPR 2024 Junjie Chen, Jiebin Yan, Yuming Fang, Li Niu

Existing methods only rely on the features extracted at support keypoints to predict or refine the keypoints on query image, but a few support feature vectors are local and inadequate for CAPE.

Category-Agnostic Pose Estimation Decoder +1

A Large-Scale Empirical Study on Improving the Fairness of Image Classification Models

1 code implementation8 Jan 2024 Junjie Yang, Jiajun Jiang, Zeyu Sun, Junjie Chen

Specifically, we target the widely-used application scenario of image classification, and utilized three different datasets and five commonly-used performance metrics to assess in total 13 methods from diverse categories.

Fairness Image Classification

Triple-View Knowledge Distillation for Semi-Supervised Semantic Segmentation

no code implementations22 Sep 2023 Ping Li, Junjie Chen, Li Yuan, Xianghua Xu, Mingli Song

To alleviate the expensive human labeling, semi-supervised semantic segmentation employs a few labeled images and an abundant of unlabeled images to predict the pixel-level label map with the same size.

Decoder Feature Importance +2

How to Evaluate Semantic Communications for Images with ViTScore Metric?

no code implementations9 Sep 2023 Tingting Zhu, Bo Peng, Jifan Liang, Tingchen Han, Hai Wan, Jingqiao Fu, Junjie Chen

To evaluate the performance of ViTScore, we compare ViTScore with 3 typical metrics (PSNR, MS-SSIM, and LPIPS) through 4 classes of experiments: (i) correlation with BERTScore through evaluation of image caption downstream CV task, (ii) evaluation in classical image communications, (iii) evaluation in image semantic communication systems, and (iv) evaluation in image semantic communication systems with semantic attack.

MS-SSIM Semantic Communication +3

Bias Testing and Mitigation in LLM-based Code Generation

no code implementations3 Sep 2023 Dong Huang, Jie M. Zhang, Qingwen Bu, Xiaofei Xie, Junjie Chen, Heming Cui

This issue concerns the integrity, fairness, and ethical foundation of software applications that depend on the code generated by these models but are underexplored in the literature.

Code Generation Fairness +2

Scene-aware Human Pose Generation using Transformer

no code implementations4 Aug 2023 Jieteng Yao, Junjie Chen, Li Niu, Bin Sheng

Affordance learning considers the interaction opportunities for an actor in the scene and thus has wide application in scene understanding and intelligent robotics.

Knowledge Distillation Scene Understanding

iEnhancer-ELM: improve enhancer identification by extracting position-related multiscale contextual information based on enhancer language models

1 code implementation3 Dec 2022 Jiahao Li, Zhourun Wu, Wenhao Lin, Jiawei Luo, Jun Zhang, Qingcai Chen, Junjie Chen

Although many feature extraction methods have been proposed to improve the performance of enhancer identification, they cannot learn position-related multiscale contextual information from raw DNA sequences.

Language Modelling Position

Weak-shot Semantic Segmentation via Dual Similarity Transfer

1 code implementation5 Oct 2022 Junjie Chen, Li Niu, Siyuan Zhou, Jianlou Si, Chen Qian, Liqing Zhang

Proposal segmentation allows proposal-pixel similarity transfer from base classes to novel classes, which enables the mask learning of novel classes.

Segmentation Semantic Segmentation +2

Mixed Supervised Object Detection by Transferring Mask Prior and Semantic Similarity

1 code implementation NeurIPS 2021 Yan Liu, Zhijie Zhang, Li Niu, Junjie Chen, Liqing Zhang

Specifically, the ability of using mask prior to help detect objects is learned from base categories and transferred to novel categories.

Object object-detection +3

Pyramid Correlation based Deep Hough Voting for Visual Object Tracking

no code implementations15 Oct 2021 Ying Wang, Tingfa Xu, Jianan Li, Shenwang Jiang, Junjie Chen

Through experiments we find that, without regression, the performance could be equally promising as long as we delicately design the network to suit the training objective.

regression Visual Object Tracking

An Improved StarGAN for Emotional Voice Conversion: Enhancing Voice Quality and Data Augmentation

1 code implementation18 Jul 2021 Xiangheng He, Junjie Chen, Georgios Rizos, Björn W. Schuller

Emotional Voice Conversion (EVC) aims to convert the emotional style of a source speech signal to a target style while preserving its content and speaker identity information.

Data Augmentation Generative Adversarial Network +2

On the Evaluation of Neural Code Summarization

1 code implementation15 Jul 2021 Ensheng Shi, Yanlin Wang, Lun Du, Junjie Chen, Shi Han, Hongyu Zhang, Dongmei Zhang, Hongbin Sun

To achieve a profound understanding of how far we are from solving this problem and provide suggestions to future research, in this paper, we conduct a systematic and in-depth analysis of 5 state-of-the-art neural code summarization models on 6 widely used BLEU variants, 4 pre-processing operations and their combinations, and 3 widely used datasets.

Code Summarization Source Code Summarization

Weak-shot Fine-grained Classification via Similarity Transfer

1 code implementation NeurIPS 2021 Junjie Chen, Li Niu, Liu Liu, Liqing Zhang

In this setting, we propose a method called SimTrans to transfer pairwise semantic similarity from base categories to novel categories.

Classification General Classification +2

Detection of Information Hiding at Anti-Copying 2D Barcodes

no code implementations20 Mar 2020 Ning Xie, Ji Hu, Junjie Chen, Qiqi Zhang, Changsheng chen

Our experimental results show that the PVBD scheme can correctly detect the existence of the hidden information at both the 2LQR code and the LCAC 2D barcode.

Learning from Web Data with Self-Organizing Memory Module

no code implementations CVPR 2020 Yi Tu, Li Niu, Junjie Chen, Dawei Cheng, Liqing Zhang

However, crawled web images usually have two types of noises, label noise and background noise, which induce extra difficulties in utilizing them effectively.

Image Classification

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