Search Results for author: Zeyu Zhang

Found 27 papers, 14 papers with code

Taxonomy Builder: a Data-driven and User-centric Tool for Streamlining Taxonomy Construction

no code implementations NAACL (HCINLP) 2022 Mihai Surdeanu, John Hungerford, Yee Seng Chan, Jessica MacBride, Benjamin Gyori, Andrew Zupon, Zheng Tang, Haoling Qiu, Bonan Min, Yan Zverev, Caitlin Hilverman, Max Thomas, Walter Andrews, Keith Alcock, Zeyu Zhang, Michael Reynolds, Steven Bethard, Rebecca Sharp, Egoitz Laparra

An existing domain taxonomy for normalizing content is often assumed when discussing approaches to information extraction, yet often in real-world scenarios there is none. When one does exist, as the information needs shift, it must be continually extended.

Text Summarization

Enhancing Student Performance Prediction on Learnersourced Questions with SGNN-LLM Synergy

no code implementations23 Sep 2023 Lin Ni, Sijie Wang, Zeyu Zhang, Xiaoxuan Li, Xianda Zheng, Paul Denny, Jiamou Liu

As an emerging education strategy, learnersourcing offers the potential for personalized learning content creation, but also grapples with the challenge of predicting student performance due to inherent noise in student-generated data.

Contrastive Learning Language Modelling +1

SPPNet: A Single-Point Prompt Network for Nuclei Image Segmentation

1 code implementation23 Aug 2023 Qing Xu, Wenwei Kuang, Zeyu Zhang, Xueyao Bao, Haoran Chen, Wenting Duan

Compared to the segment anything model, SPPNet shows roughly 20 times faster inference, with 1/70 parameters and computational cost.

Cell Segmentation Image Segmentation +1

BHSD: A 3D Multi-Class Brain Hemorrhage Segmentation Dataset

1 code implementation22 Aug 2023 Biao Wu, Yutong Xie, Zeyu Zhang, Jinchao Ge, Kaspar Yaxley, Suzan Bahadir, Qi Wu, Yifan Liu, Minh-Son To

Intracranial hemorrhage (ICH) is a pathological condition characterized by bleeding inside the skull or brain, which can be attributed to various factors.

Image Segmentation Medical Image Segmentation +1

A Survey on Large Language Model based Autonomous Agents

2 code implementations22 Aug 2023 Lei Wang, Chen Ma, Xueyang Feng, Zeyu Zhang, Hao Yang, Jingsen Zhang, ZhiYuan Chen, Jiakai Tang, Xu Chen, Yankai Lin, Wayne Xin Zhao, Zhewei Wei, Ji-Rong Wen

In this paper, we present a comprehensive survey of these studies, delivering a systematic review of the field of LLM-based autonomous agents from a holistic perspective.

Language Modelling Large Language Model

X-VoE: Measuring eXplanatory Violation of Expectation in Physical Events

1 code implementation ICCV 2023 Bo Dai, Linge Wang, Baoxiong Jia, Zeyu Zhang, Song-Chun Zhu, Chi Zhang, Yixin Zhu

Intuitive physics is pivotal for human understanding of the physical world, enabling prediction and interpretation of events even in infancy.

Unified Off-Policy Learning to Rank: a Reinforcement Learning Perspective

1 code implementation13 Jun 2023 Zeyu Zhang, Yi Su, Hui Yuan, Yiran Wu, Rishab Balasubramanian, Qingyun Wu, Huazheng Wang, Mengdi Wang

Building upon this, we leverage offline RL techniques for off-policy LTR and propose the Click Model-Agnostic Unified Off-policy Learning to Rank (CUOLR) method, which could be easily applied to a wide range of click models.

Learning-To-Rank Offline RL +2

When Large Language Model based Agent Meets User Behavior Analysis: A Novel User Simulation Paradigm

1 code implementation5 Jun 2023 Lei Wang, Jingsen Zhang, Hao Yang, ZhiYuan Chen, Jiakai Tang, Zeyu Zhang, Xu Chen, Yankai Lin, Ruihua Song, Wayne Xin Zhao, Jun Xu, Zhicheng Dou, Jun Wang, Ji-Rong Wen

We argue that these models present significant opportunities for reliable user simulation, and have the potential to revolutionize traditional study paradigms in user behavior analysis.

Language Modelling Large Language Model +2

Improving Toponym Resolution with Better Candidate Generation, Transformer-based Reranking, and Two-Stage Resolution

1 code implementation18 May 2023 Zeyu Zhang, Steven Bethard

Geocoding is the task of converting location mentions in text into structured data that encodes the geospatial semantics.

Information Retrieval Retrieval +1

Explainable Verbal Reasoner Plus (EVR+): A Natural Language Reasoning Framework that Supports Diverse Compositional Reasoning

1 code implementation28 Apr 2023 Zhengzhong Liang, Zeyu Zhang, Steven Bethard, Mihai Surdeanu

Languages models have been successfully applied to a variety of reasoning tasks in NLP, yet the language models still suffer from compositional generalization.

Language Modelling

USER: Unsupervised Structural Entropy-based Robust Graph Neural Network

1 code implementation12 Feb 2023 Yifei Wang, Yupan Wang, Zeyu Zhang, Song Yang, Kaiqi Zhao, Jiamou Liu

To this end, we propose USER, an unsupervised robust version of graph neural networks that is based on structural entropy.

Link Prediction Node Clustering

A Reconfigurable Data Glove for Reconstructing Physical and Virtual Grasps

no code implementations14 Jan 2023 Hangxin Liu, Zeyu Zhang, Ziyuan Jiao, Zhenliang Zhang, Minchen Li, Chenfanfu Jiang, Yixin Zhu, Song-Chun Zhu

In this work, we present a reconfigurable data glove design to capture different modes of human hand-object interactions, which are critical in training embodied artificial intelligence (AI) agents for fine manipulation tasks.

Structural Alignment for Network Pruning through Partial Regularization

no code implementations ICCV 2023 Shangqian Gao, Zeyu Zhang, yanfu Zhang, Feihu Huang, Heng Huang

To mitigate this gap, we first learn a target sub-network during the model training process, and then we use this sub-network to guide the learning of model weights through partial regularization.

Sequential Manipulation Planning on Scene Graph

1 code implementation10 Jul 2022 Ziyuan Jiao, Yida Niu, Zeyu Zhang, Song-Chun Zhu, Yixin Zhu, Hangxin Liu

We devise a 3D scene graph representation, contact graph+ (cg+), for efficient sequential task planning.

Stochastic Optimization

Understanding Physical Effects for Effective Tool-use

no code implementations30 Jun 2022 Zeyu Zhang, Ziyuan Jiao, Weiqi Wang, Yixin Zhu, Song-Chun Zhu, Hangxin Liu

We present a robot learning and planning framework that produces an effective tool-use strategy with the least joint efforts, capable of handling objects different from training.

Motion Planning regression +1

RecBole 2.0: Towards a More Up-to-Date Recommendation Library

2 code implementations15 Jun 2022 Wayne Xin Zhao, Yupeng Hou, Xingyu Pan, Chen Yang, Zeyu Zhang, Zihan Lin, Jingsen Zhang, Shuqing Bian, Jiakai Tang, Wenqi Sun, Yushuo Chen, Lanling Xu, Gaowei Zhang, Zhen Tian, Changxin Tian, Shanlei Mu, Xinyan Fan, Xu Chen, Ji-Rong Wen

In order to support the study of recent advances in recommender systems, this paper presents an extended recommendation library consisting of eight packages for up-to-date topics and architectures.

Benchmarking Data Augmentation +3

Double Retrieval and Ranking for Accurate Question Answering

no code implementations16 Jan 2022 Zeyu Zhang, Thuy Vu, Alessandro Moschitti

Recent work has shown that an answer verification step introduced in Transformer-based answer selection models can significantly improve the state of the art in Question Answering.

Answer Selection Retrieval

In Situ Answer Sentence Selection at Web-scale

no code implementations16 Jan 2022 Zeyu Zhang, Thuy Vu, Alessandro Moschitti

Current answer sentence selection (AS2) applied in open-domain question answering (ODQA) selects answers by ranking a large set of possible candidates, i. e., sentences, extracted from the retrieved text.

Multi-Task Learning Open-Domain Question Answering

A Comparative Study on Robust Graph Neural Networks to Structural Noises

1 code implementation11 Dec 2021 Zeyu Zhang, Yulong Pei

Although a series of robust GNNs have been proposed, they are evaluated with different structural noises, and it lacks a systematic comparison with consistent settings.

Joint Models for Answer Verification in Question Answering Systems

no code implementations ACL 2021 Zeyu Zhang, Thuy Vu, Alessandro Moschitti

This paper studies joint models for selecting correct answer sentences among the top $k$ provided by answer sentence selection (AS2) modules, which are core components of retrieval-based Question Answering (QA) systems.

Question Answering Retrieval

A Dashboard for Mitigating the COVID-19 Misinfodemic

no code implementations EACL 2021 Zhengyuan Zhu, Kevin Meng, Josue Caraballo, Israa Jaradat, Xiao Shi, Zeyu Zhang, Farahnaz Akrami, Haojin Liao, Fatma Arslan, Damian Jimenez, Mohanmmed Samiul Saeef, Paras Pathak, Chengkai Li

This paper describes the current milestones achieved in our ongoing project that aims to understand the surveillance of, impact of and intervention on COVID-19 misinfodemic on Twitter.


Reconstructing Interactive 3D Scenes by Panoptic Mapping and CAD Model Alignments

1 code implementation30 Mar 2021 Muzhi Han, Zeyu Zhang, Ziyuan Jiao, Xu Xie, Yixin Zhu, Song-Chun Zhu, Hangxin Liu

In this paper, we rethink the problem of scene reconstruction from an embodied agent's perspective: While the classic view focuses on the reconstruction accuracy, our new perspective emphasizes the underlying functions and constraints such that the reconstructed scenes provide \em{actionable} information for simulating \em{interactions} with agents.

Common Sense Reasoning

Lineage Evolution Reinforcement Learning

no code implementations26 Sep 2020 Zeyu Zhang, Guisheng Yin

In the process of agent evolution, we refer to the characteristics of natural genetic behavior, add lineage factor to ensure the retention of potential performance of agent, and comprehensively consider the current performance and lineage value when evaluating the performance of agent.

reinforcement-learning Reinforcement Learning (RL)

A Generate-and-Rank Framework with Semantic Type Regularization for Biomedical Concept Normalization

no code implementations ACL 2020 Dongfang Xu, Zeyu Zhang, Steven Bethard

Concept normalization, the task of linking textual mentions of concepts to concepts in an ontology, is challenging because ontologies are large.

Congestion-aware Evacuation Routing using Augmented Reality Devices

no code implementations25 Apr 2020 Zeyu Zhang, Hangxin Liu, Ziyuan Jiao, Yixin Zhu, Song-Chun Zhu

We present a congestion-aware routing solution for indoor evacuation, which produces real-time individual-customized evacuation routes among multiple destinations while keeping tracks of all evacuees' locations.

ScienceExamCER: A High-Density Fine-Grained Science-Domain Corpus for Common Entity Recognition

no code implementations LREC 2020 Hannah Smith, Zeyu Zhang, John Culnan, Peter Jansen

Named entity recognition identifies common classes of entities in text, but these entity labels are generally sparse, limiting utility to downstream tasks.

Classification General Classification +5

Visualizing How Embeddings Generalize

1 code implementation16 Sep 2019 Xiaotong Liu, Hong Xuan, Zeyu Zhang, Abby Stylianou, Robert Pless

Deep metric learning is often used to learn an embedding function that captures the semantic differences within a dataset.

Metric Learning

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