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Distributed representation plays an important role in deep learning based natural language processing. However, the representation of a sentence often varies in different tasks, which is usually learned from scratch and suffers from the…

计算与语言 · 计算机科学 2018-04-24 Renjie Zheng , Junkun Chen , Xipeng Qiu

Information extraction (IE) for visually-rich documents (VRDs) has achieved SOTA performance recently thanks to the adaptation of Transformer-based language models, which shows the great potential of pre-training methods. In this paper, we…

人工智能 · 计算机科学 2021-07-07 Tuan-Anh D. Nguyen , Hieu M. Vu , Nguyen Hong Son , Minh-Tien Nguyen

Representation learning (RL) methods for cyberattack detection face the diversity and sophistication of attack data, leading to the issue of mixed representations of different classes, particularly as the number of classes increases. To…

密码学与安全 · 计算机科学 2025-04-30 Phai Vu Dinh , Quang Uy Nguyen , Thai Hoang Dinh , Diep N. Nguyen , Bao Son Pham , Eryk Dutkiewicz

Definition bias is a negative phenomenon that can mislead models. Definition bias in information extraction appears not only across datasets from different domains but also within datasets sharing the same domain. We identify two types of…

计算与语言 · 计算机科学 2024-03-26 Wenhao Huang , Qianyu He , Zhixu Li , Jiaqing Liang , Yanghua Xiao

Entity and relation extraction is a key task in information extraction, where the output can be used for downstream NLP tasks. Existing approaches for entity and relation extraction tasks mainly focus on the English corpora and ignore other…

计算与语言 · 计算机科学 2023-01-12 Zixiang Wang , Jian Yang , Tongliang Li , Jiaheng Liu , Ying Mo , Jiaqi Bai , Longtao He , Zhoujun Li

Graphs are ubiquitous in real-world scenarios and encompass a diverse range of tasks, from node-, edge-, and graph-level tasks to transfer learning. However, designing specific tasks for each type of graph data is often costly and lacks…

机器学习 · 计算机科学 2024-03-22 Yulan Hu , Sheng Ouyang , Zhirui Yang , Ge Chen , Junchen Wan , Xiao Wang , Yong Liu

Events describe the state changes of entities. In a document, multiple events are connected by various relations (e.g., Coreference, Temporal, Causal, and Subevent). Therefore, obtaining the connections between events through Event-Event…

计算与语言 · 计算机科学 2024-03-20 Haochen Li , Di Geng

Knowledge Graph Embedding (KGE) models are used to learn continuous representations of entities and relations. A key task in the literature is predicting missing links between entities. However, Knowledge Graphs are not just sets of links…

人工智能 · 计算机科学 2023-08-28 Thiviyan Thanapalasingam , Emile van Krieken , Peter Bloem , Paul Groth

The problem of learning simultaneously several related tasks has received considerable attention in several domains, especially in machine learning with the so-called multitask learning problem or learning to learn problem [1], [2].…

信号处理 · 电气工程与系统科学 2021-09-29 Roula Nassif , Stefan Vlaski , Cedric Richard , Jie Chen , Ali H. Sayed

Event co-occurrences have been proved effective for event extraction (EE) in previous studies, but have not been considered for event argument extraction (EAE) recently. In this paper, we try to fill this gap between EE research and EAE…

计算与语言 · 计算机科学 2023-06-02 Yuxin He , Jingyue Hu , Buzhou Tang

Recent works show that discourse analysis benefits from modeling intra- and inter-sentential levels separately, where proper representations for text units of different granularities are desired to capture both the meaning of text units and…

计算与语言 · 计算机科学 2022-05-05 Yifei Zhou , Yansong Feng

Instruction data is crucial for improving the capability of Large Language Models (LLMs) to align with human-level performance. Recent research LIMA demonstrates that alignment is essentially a process where the model adapts instructions'…

计算与语言 · 计算机科学 2024-10-01 Yiwei Li , Jiayi Shi , Shaoxiong Feng , Peiwen Yuan , Xinglin Wang , Boyuan Pan , Heda Wang , Yao Hu , Kan Li

Relation extraction (RE) is a sub-discipline of information extraction (IE) which focuses on the prediction of a relational predicate from a natural-language input unit (such as a sentence, a clause, or even a short paragraph consisting of…

计算与语言 · 计算机科学 2022-12-20 Alessandro Temperoni , Maria Biryukov , Martin Theobald

In order to construct or extend entity-centric and event-centric knowledge graphs (KG and EKG), the information extraction (IE) annotation toolkit is essential. However, existing IE toolkits have several non-trivial problems, such as not…

计算与语言 · 计算机科学 2023-07-04 Xiang Wei , Yufeng Chen , Ning Cheng , Xingyu Cui , Jinan Xu , Wenjuan Han

Entity-relation extraction aims to jointly solve named entity recognition (NER) and relation extraction (RE). Recent approaches use either one-way sequential information propagation in a pipeline manner or two-way implicit interaction with…

计算与语言 · 计算机科学 2022-02-16 An Wang , Ao Liu , Hieu Hanh Le , Haruo Yokota

Emotion cause pair extraction (ECPE), as one of the derived subtasks of emotion cause analysis (ECA), shares rich inter-related features with emotion extraction (EE) and cause extraction (CE). Therefore EE and CE are frequently utilized as…

计算与语言 · 计算机科学 2022-09-12 Shunjie Chen , Xiaochuan Shi , Jingye Li , Shengqiong Wu , Hao Fei , Fei Li , Donghong Ji

Most existing knowledge graphs suffer from incompleteness, which can be alleviated by inferring missing links based on known facts. One popular way to accomplish this is to generate low-dimensional embeddings of entities and relations, and…

机器学习 · 计算机科学 2020-09-25 Shikhar Vashishth , Soumya Sanyal , Vikram Nitin , Nilesh Agrawal , Partha Talukdar

We examine two fundamental tasks associated with graph representation learning: link prediction and node classification. We present a new autoencoder architecture capable of learning a joint representation of local graph structure and…

机器学习 · 计算机科学 2018-11-08 Phi Vu Tran

Automated emotion recognition in the wild from facial images remains a challenging problem. Although recent advances in Deep Learning have supposed a significant breakthrough in this topic, strong changes in pose, orientation and point of…

计算机视觉与模式识别 · 计算机科学 2018-02-20 Gerard Pons , David Masip

Existing deep learning approaches for learning visual features tend to overlearn and extract more information than what is required for the task at hand. From a privacy preservation perspective, the input visual information is not protected…

计算机视觉与模式识别 · 计算机科学 2020-05-21 Naveen Panwar , Tarun Tater , Anush Sankaran , Senthil Mani