Search Results for author: Yujie Zhang

Found 34 papers, 10 papers with code

基于多任务标签一致性机制的中文命名实体识别(Chinese Named Entity Recognition based on Multi-task Label Consistency Mechanism)

no code implementations CCL 2021 Shuning Lv, Jian Liu, Jinan Xu, Yufeng Chen, Yujie Zhang

“实体边界预测对中文命名实体识别至关重要。现有研究为改善边界识别效果提出的多任务学习方法仅考虑与分词任务结合, 缺少多任务标签训练数据, 无法学到任务的标签一致性关系。本文提出一种新的基于多任务标签一致性机制的中文命名实体识别方法:将分词和词性信息融入命名实体识别模型, 使三种任务联合训练;建立基于标签一致性机制的多任务学习模式, 来捕获标签一致性关系及学习多任务表示。全样本和小样本实验表明了方法的有效性。”

Chinese Named Entity Recognition named-entity-recognition +1

融合外部知识的开放域复述模板获取方法(An Open Domain Paraphrasing Template Acquisition Method Based on External Knowledge)

no code implementations CCL 2021 Bo Jin, Mingtong Liu, Yujie Zhang, Jinan Xu, Yufeng Chen

“如何挖掘语言资源中丰富的复述模板, 是复述研究中的一项重要任务。已有方法在人工给定种子实体对的基础上, 利用实体关系, 通过自举迭代方式, 从开放域获取复述模板, 规避对平行语料或可比语料的依赖, 但是该方法需人工给定实体对, 实体关系受限;在迭代过程中语义会发生偏移, 影响获取质量。针对这些问题, 我们考虑知识库中包含描述特定语义关系的实体对(即关系三元组), 提出融合外部知识的开放域复述模板自动获取方法。首先, 将关系三元组与开放域文本对齐, 获取关系对应文本, 并将文本中语义丰富部分泛化成变量槽, 获取关系模板;接着设计模板表示方法, 本文利用预训练语言模型, 在模板表示中融合变量槽语义;最后, 根据获得的模板表示, 设计自动聚类与筛选方法, 获取高精度的复述模板。在融合自动评测与人工评测的评价方法下, 实验结果表明, 本文提出的方法实现了在开放域数据上复述模板的自动泛化与获取, 能够获得质量高、语义一致的复述模板。”

Learning Structural Information for Syntax-Controlled Paraphrase Generation

no code implementations Findings (NAACL) 2022 Erguang Yang, Chenglin Bai, Deyi Xiong, Yujie Zhang, Yao Meng, Jinan Xu, Yufeng Chen

To model the alignment relation between words and nodes, we propose an attention regularization objective, which makes the decoder accurately select corresponding syntax nodes to guide the generation of words. Experiments show that SI-SCP achieves state-of-the-art performances in terms of semantic and syntactic quality on two popular benchmark datasets. Additionally, we propose a Syntactic Template Retriever (STR) to retrieve compatible syntactic structures.

Decoder Paraphrase Generation +1

A Joint Model for Graph-based Chinese Dependency Parsing

no code implementations CCL 2020 Xingchen Li, Mingtong Liu, Yujie Zhang, Jinan Xu, Yufeng Chen

The experimental results on the Penn Chinese treebank (CTB5) show that our proposed joint model improved by 0. 38% on dependency parsing than the model of Yan et al. (2019).

Chinese Dependency Parsing Chinese Word Segmentation +5

LeCoDe: A Benchmark Dataset for Interactive Legal Consultation Dialogue Evaluation

no code implementations26 May 2025 Weikang Yuan, Kaisong Song, Zhuoren Jiang, Junjie Cao, Yujie Zhang, Jun Lin, Kun Kuang, Ji Zhang, Xiaozhong Liu

To address these challenges, we introduce LeCoDe, a real-world multi-turn benchmark dataset comprising 3, 696 legal consultation dialogues with 110, 008 dialogue turns, designed to evaluate and improve LLMs' legal consultation capability.

Dialogue Evaluation

DPCD: A Quality Assessment Database for Dynamic Point Clouds

no code implementations18 May 2025 Yating Liu, Yujie Zhang, Qi Yang, Yiling Xu, Zhu Li, Ye-kui Wang

Recently, the advancements in Virtual/Augmented Reality (VR/AR) have driven the demand for Dynamic Point Clouds (DPC).

Point Cloud Quality Assessment

Rapid morphology characterization of two-dimensional TMDs and lateral heterostructures based on deep learning

1 code implementation1 Mar 2025 Junqi He, Yujie Zhang, Jialu Wang, Tao Wang, Pan Zhang, Chengjie Cai, Jinxing Yang, Xiao Lin, XiaoHui Yang

Two-dimensional (2D) materials and heterostructures exhibit unique physical properties, necessitating efficient and accurate characterization methods.

Transfer Learning

From Images to Point Clouds: An Efficient Solution for Cross-media Blind Quality Assessment without Annotated Training

no code implementations23 Jan 2025 Yipeng Liu, Qi Yang, Yujie Zhang, Yiling Xu, Le Yang, Zhu Li

We present a novel quality assessment method which can predict the perceptual quality of point clouds from new scenes without available annotations by leveraging the rich prior knowledge in images, called the Distribution-Weighted Image-Transferred Point Cloud Quality Assessment (DWIT-PCQA).

Disentanglement Domain Adaptation +1

DAOP: Data-Aware Offloading and Predictive Pre-Calculation for Efficient MoE Inference

1 code implementation16 Dec 2024 Yujie Zhang, Shivam Aggarwal, Tulika Mitra

Mixture-of-Experts (MoE) models, though highly effective for various machine learning tasks, face significant deployment challenges on memory-constrained devices.

Mixture-of-Experts

Benchmarking and Learning Multi-Dimensional Quality Evaluator for Text-to-3D Generation

no code implementations15 Dec 2024 Yujie Zhang, Bingyang Cui, Qi Yang, Zhu Li, Yiling Xu

Text-to-3D generation has achieved remarkable progress in recent years, yet evaluating these methods remains challenging for two reasons: i) Existing benchmarks lack fine-grained evaluation on different prompt categories and evaluation dimensions.

3D Generation Benchmarking +1

Learning Disentangled Representations for Perceptual Point Cloud Quality Assessment via Mutual Information Minimization

no code implementations12 Nov 2024 Ziyu Shan, Yujie Zhang, Yipeng Liu, Yiling Xu

However, current NR-PCQA models attempt to indiscriminately learn point cloud content and distortion representations within a single network, overlooking their distinct contributions to quality information.

Disentanglement Point Cloud Quality Assessment

Seg-CycleGAN : SAR-to-optical image translation guided by a downstream task

no code implementations11 Aug 2024 Hannuo Zhang, Huihui Li, Jiarui Lin, Yujie Zhang, Jianghua Fan, Hang Liu

Our method utilizes the downstream task of ship target semantic segmentation to guide the training of image translation network, improving the quality of output Optical-styled images.

Earth Observation Segmentation +2

Asynchronous Feedback Network for Perceptual Point Cloud Quality Assessment

2 code implementations13 Jul 2024 Yujie Zhang, Qi Yang, Ziyu Shan, Yiling Xu

Recent years have witnessed the success of the deep learning-based technique in research of no-reference point cloud quality assessment (NR-PCQA).

Point Cloud Quality Assessment

Perception-Guided Quality Metric of 3D Point Clouds Using Hybrid Strategy

1 code implementation4 Jul 2024 Yujie Zhang, Qi Yang, Yiling Xu, Shan Liu

To bridge the gap, in this paper, we propose a perception-guided hybrid metric (PHM) that adaptively leverages two visual strategies with respect to distortion degree to predict point cloud quality: to measure visible difference in high-quality samples, PHM takes into account the masking effect and employs texture complexity as an effective compensatory factor for absolute difference; on the other hand, PHM leverages spectral graph theory to evaluate appearance degradation in low-quality samples.

Point Cloud Quality Assessment

A Shared-Aperture Dual-Band sub-6 GHz and mmWave Reconfigurable Intelligent Surface With Independent Operation

no code implementations5 Jun 2024 Junhui Rao, Yujie Zhang, Shiwen Tang, Zan Li, Zhaoyang Ming, Jichen Zhang, Chi Yuk Chiu, Ross Murch

This design aims to bridge the gap between current single-band reconfigurable intelligent surfaces (RISs) and wireless systems utilizing sub-6 GHz and mmWave bands that require RIS with independently reconfigurable dual-band operation.

Band Gap

Concealing Backdoor Model Updates in Federated Learning by Trigger-Optimized Data Poisoning

no code implementations10 May 2024 Yujie Zhang, Neil Gong, Michael K. Reiter

To effectively conceal malicious model updates among benign ones, we propose DPOT, a backdoor attack strategy in FL that dynamically constructs backdoor objectives by optimizing a backdoor trigger, making backdoor data have minimal effect on model updates.

Backdoor Attack Data Poisoning +2

Contrastive Pre-Training with Multi-View Fusion for No-Reference Point Cloud Quality Assessment

no code implementations CVPR 2024 Ziyu Shan, Yujie Zhang, Qi Yang, Haichen Yang, Yiling Xu, Jenq-Neng Hwang, Xiaozhong Xu, Shan Liu

Furthermore, in the model fine-tuning stage, we propose a semantic-guided multi-view fusion module to effectively integrate the features of projected images from multiple perspectives.

Philosophy Point Cloud Quality Assessment

PAME: Self-Supervised Masked Autoencoder for No-Reference Point Cloud Quality Assessment

no code implementations15 Mar 2024 Ziyu Shan, Yujie Zhang, Qi Yang, Haichen Yang, Yiling Xu, Shan Liu

Furthermore, in the model fine-tuning stage, the learned content-aware features serve as a guide to fuse the point cloud quality features extracted from different perspectives.

Point Cloud Quality Assessment

Once-Training-All-Fine: No-Reference Point Cloud Quality Assessment via Domain-relevance Degradation Description

no code implementations4 Jul 2023 Yipeng Liu, Qi Yang, Yujie Zhang, Yiling Xu, Le Yang, Xiaozhong Xu, Shan Liu

Second, to reduce the significant domain discrepancy, we establish an intermediate domain, the description domain, based on insights from the human visual system (HVS), by considering the domain relevance among samples located in the perception domain and learning a structured latent space.

All Point Cloud Quality Assessment +1

Streamlining Social Media Information Retrieval for COVID-19 Research with Deep Learning

2 code implementations28 Jun 2023 Yining Hua, Jiageng Wu, Shixu Lin, Minghui Li, Yujie Zhang, Dinah Foer, Siwen Wang, Peilin Zhou, Jie Yang, Li Zhou

Conclusions: This study advances public health research by implementing a novel, systematic pipeline for curating symptom lexicons from social media data.

Information Retrieval named-entity-recognition +3

De novo reconstruction of satellite repeat units from sequence data

1 code implementation19 Apr 2023 Yujie Zhang, Justin Chu, Haoyu Cheng, Heng Li

Existing algorithms for identifying satellite repeats either require the complete assembly of satellites or only work for simple repeat structures without HORs.

GPA-Net:No-Reference Point Cloud Quality Assessment with Multi-task Graph Convolutional Network

no code implementations29 Oct 2022 Ziyu Shan, Qi Yang, Rui Ye, Yujie Zhang, Yiling Xu, Xiaozhong Xu, Shan Liu

To extract effective features for PCQA, we propose a new graph convolution kernel, i. e., GPAConv, which attentively captures the perturbation of structure and texture.

Philosophy Point Cloud Quality Assessment

TCDM: Transformational Complexity Based Distortion Metric for Perceptual Point Cloud Quality Assessment

1 code implementation10 Oct 2022 Yujie Zhang, Qi Yang, Yifei Zhou, Xiaozhong Xu, Le Yang, Yiling Xu

The goal of objective point cloud quality assessment (PCQA) research is to develop quantitative metrics that measure point cloud quality in a perceptually consistent manner.

Point Cloud Quality Assessment

Point Cloud Quality Assessment using 3D Saliency Maps

no code implementations30 Sep 2022 Zhengyu Wang, Yujie Zhang, Qi Yang, Yiling Xu, Jun Sun, Shan Liu

Considering the importance of saliency detection in quality assessment, we propose an effective full-reference PCQA metric which makes the first attempt to utilize the saliency information to facilitate quality prediction, called point cloud quality assessment using 3D saliency maps (PQSM).

Point Cloud Quality Assessment Saliency Detection

Using Loaded N-port Structures to Achieve the Continuous-Space Electromagnetic Channel Capacity Bound

no code implementations25 May 2022 Zixiang Han, Shanpu Shen, Yujie Zhang, Shiwen Tang, Chi-Yuk Chiu, Ross Murch

Simulation results of the channel capacity bounds achieved using our MIMO antenna design with one square wavelength size are provided.

Natural Scene Text Editing Based on AI

no code implementations26 Nov 2021 Yujie Zhang

In a recorded situation, textual information is crucial for scene interpretation and decision making.

Decision Making Scene Text Editing

MPED: Quantifying Point Cloud Distortion based on Multiscale Potential Energy Discrepancy

1 code implementation4 Mar 2021 Qi Yang, Yujie Zhang, Siheng Chen, Yiling Xu, Jun Sun, Zhan Ma

In this paper, we propose a new distortion quantification method for point clouds, the multiscale potential energy discrepancy (MPED).

Point cloud reconstruction

A Learning-Exploring Method to Generate Diverse Paraphrases with Multi-Objective Deep Reinforcement Learning

no code implementations COLING 2020 Mingtong Liu, Erguang Yang, Deyi Xiong, Yujie Zhang, Yao Meng, Changjian Hu, Jinan Xu, Yufeng Chen

We propose a learning-exploring method to generate sentences as learning objectives from the learned data distribution, and employ reinforcement learning to combine these new learning objectives for model training.

Deep Reinforcement Learning Diversity +2

Cannot find the paper you are looking for? You can Submit a new open access paper.