activity
20142023
most citedGraph Neural Networks: A Review of Methods and Applications

1.4k citations · 5.4k across the 120 of their papers we have counts for

collaborators

122 papers

cs.CL2023★ 1 cited

QASnowball: An Iterative Bootstrapping Framework for High-Quality Question-Answering Data Generation

Kunlun Zhu, Shihao Liang, Xu Han +4

Recent years have witnessed the success of question answering (QA), especially its potential to be a foundation paradigm for tackling diverse NLP tasks. However, obtaining sufficie…

cs.DB2023★ 6 cited

LLM As DBA

Xuanhe Zhou, Guoliang Li, Zhiyuan Liu

Database administrators (DBAs) play a crucial role in managing, maintaining and optimizing a database system to ensure data availability, performance, and reliability. However, it…

cs.AI2023

Automatic Truss Design with Reinforcement Learning

Weihua Du, Jinglun Zhao, Chao Yu +7

Truss layout design, namely finding a lightweight truss layout satisfying all the physical constraints, is a fundamental problem in the building industry. Generating the optimal la…

cs.LG2022★ 5 cited

GACT: Activation Compressed Training for Generic Network Architectures

Xiaoxuan Liu, Lianmin Zheng, Dequan Wang +9

Training large neural network (NN) models requires extensive memory resources, and Activation Compressed Training (ACT) is a promising approach to reduce training memory footprint.…

cs.CY2021★ 1 cited

From Symbols to Embeddings: A Tale of Two Representations in Computational Social Science

Huimin Chen, Cheng Yang, Xuanming Zhang +3

Computational Social Science (CSS), aiming at utilizing computational methods to address social science problems, is a recent emerging and fast-developing field. The study of CSS i…

cs.CL2021★ 15 cited

CPM-2: Large-scale Cost-effective Pre-trained Language Models

Zhengyan Zhang, Yuxian Gu, Xu Han +16

In recent years, the size of pre-trained language models (PLMs) has grown by leaps and bounds. However, efficiency issues of these large-scale PLMs limit their utilization in real-…

cs.CL2021★ 9 cited

Turn the Combination Lock: Learnable Textual Backdoor Attacks via Word Substitution

Fanchao Qi, Yuan Yao, Sophia Xu +2

Recent studies show that neural natural language processing (NLP) models are vulnerable to backdoor attacks. Injected with backdoors, models perform normally on benign examples but…

cs.CL2021

Automatic Construction of Sememe Knowledge Bases via Dictionaries

Fanchao Qi, Yangyi Chen, Fengyu Wang +3

A sememe is defined as the minimum semantic unit in linguistics. Sememe knowledge bases (SKBs), which comprise words annotated with sememes, enable sememes to be applied to natural…

cs.CL2021★ 13 cited

Hidden Killer: Invisible Textual Backdoor Attacks with Syntactic Trigger

Fanchao Qi, Mukai Li, Yangyi Chen +4

Backdoor attacks are a kind of insidious security threat against machine learning models. After being injected with a backdoor in training, the victim model will produce adversary-…

cs.LG2021★ 3 cited

Evaluating Modules in Graph Contrastive Learning

Ganqu Cui, Yufeng Du, Cheng Yang +5

The recent emergence of contrastive learning approaches facilitates the application on graph representation learning (GRL), introducing graph contrastive learning (GCL) into the li…

cs.AI2021★ 15 cited

Pre-Trained Models: Past, Present and Future

Xu Han, Zhengyan Zhang, Ning Ding +21

Large-scale pre-trained models (PTMs) such as BERT and GPT have recently achieved great success and become a milestone in the field of artificial intelligence (AI). Owing to sophis…

cs.CL2021

CLEVE: Contrastive Pre-training for Event Extraction

Ziqi Wang, Xiaozhi Wang, Xu Han +6

Event extraction (EE) has considerably benefited from pre-trained language models (PLMs) by fine-tuning. However, existing pre-training methods have not involved modeling event cha…

cs.CL2021★ 1 cited

Manual Evaluation Matters: Reviewing Test Protocols of Distantly Supervised Relation Extraction

Tianyu Gao, Xu Han, Keyue Qiu +7

Distantly supervised (DS) relation extraction (RE) has attracted much attention in the past few years as it can utilize large-scale auto-labeled data. However, its evaluation has l…

cs.IR2021★ 73 cited

Few-Shot Conversational Dense Retrieval

Shi Yu, Zhenghao Liu, Chenyan Xiong +2

Dense retrieval (DR) has the potential to resolve the query understanding challenge in conversational search by matching in the learned embedding space. However, this adaptation is…

cs.CL2021★ 15 cited

Lawformer: A Pre-trained Language Model for Chinese Legal Long Documents

Chaojun Xiao, Xueyu Hu, Zhiyuan Liu +2

Legal artificial intelligence (LegalAI) aims to benefit legal systems with the technology of artificial intelligence, especially natural language processing (NLP). Recently, inspir…

cs.CL2021★ 10 cited

Knowledge Inheritance for Pre-trained Language Models

Yujia Qin, Yankai Lin, Jing Yi +8

Recent explorations of large-scale pre-trained language models (PLMs) have revealed the power of PLMs with huge amounts of parameters, setting off a wave of training ever-larger PL…

cs.CL2021★ 27 cited

PTR: Prompt Tuning with Rules for Text Classification

Xu Han, Weilin Zhao, Ning Ding +2

Fine-tuned pre-trained language models (PLMs) have achieved awesome performance on almost all NLP tasks. By using additional prompts to fine-tune PLMs, we can further stimulate the…

cs.CL2021★ 5 cited

Few-NERD: A Few-Shot Named Entity Recognition Dataset

Ning Ding, Guangwei Xu, Yulin Chen +5

Recently, considerable literature has grown up around the theme of few-shot named entity recognition (NER), but little published benchmark data specifically focused on the practica…

cs.AI2021

Is Multi-Hop Reasoning Really Explainable? Towards Benchmarking Reasoning Interpretability

Xin Lv, Yixin Cao, Lei Hou +4

Multi-hop reasoning has been widely studied in recent years to obtain more interpretable link prediction. However, we find in experiments that many paths given by these models are…

cs.CL2021★ 11 cited

Equality before the Law: Legal Judgment Consistency Analysis for Fairness

Yuzhong Wang, Chaojun Xiao, Shirong Ma +5

In a legal system, judgment consistency is regarded as one of the most important manifestations of fairness. However, due to the complexity of factual elements that impact sentenci…

cs.CV2021

Visual Distant Supervision for Scene Graph Generation

Yuan Yao, Ao Zhang, Xu Han +5

Scene graph generation aims to identify objects and their relations in images, providing structured image representations that can facilitate numerous applications in computer visi…

cs.CL2021★ 81 cited

Representation Learning for Natural Language Processing

Zhiyuan Liu, Yankai Lin, Maosong Sun

This book aims to review and present the recent advances of distributed representation learning for NLP, including why representation learning can improve NLP, how representation l…

cs.IR2021★ 3 cited

OpenMatch: An Open Source Library for Neu-IR Research

Zhenghao Liu, Kaitao Zhang, Chenyan Xiong +2

OpenMatch is a Python-based library that serves for Neural Information Retrieval (Neu-IR) research. It provides self-contained neural and traditional IR modules, making it easy to…

cs.CL2021★ 40 cited

Red Alarm for Pre-trained Models: Universal Vulnerability to Neuron-Level Backdoor Attacks

Zhengyan Zhang, Guangxuan Xiao, Yongwei Li +6

Pre-trained models (PTMs) have been widely used in various downstream tasks. The parameters of PTMs are distributed on the Internet and may suffer backdoor attacks. In this work, w…