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Enterprise relation extraction aims to detect pairs of enterprise entities and identify the business relations between them from unstructured or semi-structured text data, and it is crucial for several real-world applications such as risk…

计算与语言 · 计算机科学 2022-10-20 Peipei Liu , Hong Li , Zhiyu Wang , Yimo Ren , Jie Liu , Fei Lyu , Hongsong Zhu , Limin Sun

Knowledge graphs are inherently incomplete. Therefore substantial research has been directed toward knowledge graph completion (KGC), i.e., predicting missing triples from the information represented in the knowledge graph (KG). KG…

机器学习 · 计算机科学 2023-03-23 Aleksandar Pavlović , Emanuel Sallinger

Byte Pair Encoding (BPE) serves as a foundation method for text tokenization in the Natural Language Processing (NLP) field. Despite its wide adoption, the original BPE algorithm harbors an inherent flaw: it inadvertently introduces a…

计算与语言 · 计算机科学 2024-11-14 Haoran Lian , Yizhe Xiong , Jianwei Niu , Shasha Mo , Zhenpeng Su , Zijia Lin , Hui Chen , Peng Liu , Jungong Han , Guiguang Ding

Generative modeling has evolved to a notable field of machine learning. Deep polynomial neural networks (PNNs) have demonstrated impressive results in unsupervised image generation, where the task is to map an input vector (i.e., noise) to…

机器学习 · 计算机科学 2021-10-29 Grigorios G Chrysos , Markos Georgopoulos , Yannis Panagakis

Relation extraction is an important but challenging task that aims to extract all hidden relational facts from the text. With the development of deep language models, relation extraction methods have achieved good performance on various…

计算与语言 · 计算机科学 2022-08-17 Sheng Zhang , Patrick Ng , Zhiguo Wang , Bing Xiang

Tagging based relational triple extraction methods are attracting growing research attention recently. However, most of these methods take a unidirectional extraction framework that first extracts all subjects and then extracts objects and…

计算与语言 · 计算机科学 2022-01-06 Feiliang Ren , Longhui Zhang , Xiaofeng Zhao , Shujuan Yin , Shilei Liu , Bochao Li

Compared to other modalities, electroencephalogram (EEG) based emotion recognition can intuitively respond to emotional patterns in the human brain and, therefore, has become one of the most focused tasks in affective computing. The nature…

信号处理 · 电气工程与系统科学 2024-08-14 Chenyu Liu , Xinliang Zhou , Yihao Wu , Yi Ding , Liming Zhai , Kun Wang , Ziyu Jia , Yang Liu

Emotion Cause Extraction in Conversations (ECEC) aims to extract the utterances which contain the emotional cause in conversations. Most prior research focuses on modelling conversational contexts with sequential encoding, ignoring the…

计算与语言 · 计算机科学 2022-10-27 Dexin Kong , Nan Yu , Yun Yuan , Guohong Fu , Chen Gong

Empathetic dialogue is a human-like behavior that requires the perception of both affective factors (e.g., emotion status) and cognitive factors (e.g., cause of the emotion). Besides concerning emotion status in early work, the latest…

计算与语言 · 计算机科学 2023-02-24 Yushan Qian , Bo Wang , Ting-En Lin , Yinhe Zheng , Ying Zhu , Dongming Zhao , Yuexian Hou , Yuchuan Wu , Yongbin Li

Many real world systems need to operate on heterogeneous information networks that consist of numerous interacting components of different types. Examples include systems that perform data analysis on biological information networks; social…

In this paper, we propose a novel method for joint entity and relation extraction from unstructured text by framing it as a conditional sequence generation problem. In contrast to conventional generative information extraction models that…

计算与语言 · 计算机科学 2024-01-17 Urchade Zaratiana , Nadi Tomeh , Pierre Holat , Thierry Charnois

Event Extraction (EE), aiming to identify and classify event triggers and arguments from event mentions, has benefited from pre-trained language models (PLMs). However, existing PLM-based methods ignore the information of trigger/argument…

计算与语言 · 计算机科学 2023-05-22 Xingyu Bai , Taiqiang Wu , Han Guo , Zhe Zhao , Xuefeng Yang , Jiayi Li , Weijie Liu , Qi Ju , Weigang Guo , Yujiu Yang

Electroencephalography (EEG) measures the neuronal activities in different brain regions via electrodes. Many existing studies on EEG-based emotion recognition do not fully exploit the topology of EEG channels. In this paper, we propose a…

计算机视觉与模式识别 · 计算机科学 2020-05-14 Peixiang Zhong , Di Wang , Chunyan Miao

The goal of representation learning of knowledge graph is to encode both entities and relations into a low-dimensional embedding spaces. Many recent works have demonstrated the benefits of knowledge graph embedding on knowledge graph…

人工智能 · 计算机科学 2019-10-11 Wenqiang Liu , Hongyun Cai , Xu Cheng , Sifa Xie , Yipeng Yu , Hanyu Zhang

Event extraction involves the detection and extraction of both the event triggers and corresponding event arguments. Existing systems often decompose event extraction into multiple subtasks, without considering their possible interactions.…

计算与语言 · 计算机科学 2022-10-18 Huiling You , David Samuel , Samia Touileb , Lilja Øvrelid

Tokenization is the first -- and often least scrutinized -- step of most NLP pipelines. Standard algorithms for learning tokenizers rely on frequency-based objectives, which favor languages dominant in the training data and consequently…

计算与语言 · 计算机科学 2025-08-25 Negar Foroutan , Clara Meister , Debjit Paul , Joel Niklaus , Sina Ahmadi , Antoine Bosselut , Rico Sennrich

Joint entity and relation extraction is an essential task in natural language processing and knowledge graph construction. Existing approaches usually decompose the joint extraction task into several basic modules or processing steps to…

计算与语言 · 计算机科学 2022-03-18 Yu-Ming Shang , Heyan Huang , Xian-Ling Mao

The last decade has witnessed the success of the traditional feature-based method on exploiting the discrete structures such as words or lexical patterns to extract relations from text. Recently, convolutional and recurrent neural networks…

计算与语言 · 计算机科学 2015-11-19 Thien Huu Nguyen , Ralph Grishman

Affective brain-computer interfaces based on electroencephalography (EEG) is an important branch in the field of affective computing. However, individual differences and noisy labels seriously limit the effectiveness and generalizability of…

人机交互 · 计算机科学 2022-05-09 Rushuang Zhou , Zhiguo Zhang , Hong Fu , Li Zhang , Linling Li , Gan Huang , Yining Dong , Fali Li , Xin Yang , Zhen Liang

Graph Neural Networks achieve remarkable results on problems with structured data but come as black-box predictors. Transferring existing explanation techniques, such as occlusion, fails as even removing a single node or edge can lead to…

机器学习 · 计算机科学 2020-10-27 Lukas Faber , Amin K. Moghaddam , Roger Wattenhofer