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Entity Linking has two main open areas of research: 1) generate candidate entities without using alias tables and 2) generate more contextual representations for both mentions and entities. Recently, a solution has been proposed for the…

计算与语言 · 计算机科学 2020-04-08 Oshin Agarwal , Daniel M. Bikel

Argument structure extraction (ASE) aims to identify the discourse structure of arguments within documents. Previous research has demonstrated that contextual information is crucial for developing an effective ASE model. However, we observe…

计算与语言 · 计算机科学 2023-10-10 Yun Luo , Zhen Yang , Fandong Meng , Yingjie Li , Jie Zhou , Yue Zhang

Semantic relationships, such as hyponym-hypernym, cause-effect, meronym-holonym etc. between a pair of entities in a sentence are usually reflected through syntactic patterns. Automatic extraction of such patterns benefits several…

计算与语言 · 计算机科学 2021-04-06 Md. Ahsanul Kabir , Typer Phillips , Xiao Luo , Mohammad Al Hasan

Event extraction (EE), which acquires structural event knowledge from texts, can be divided into two sub-tasks: event type classification and element extraction (namely identifying triggers and arguments under different role patterns). As…

计算与语言 · 计算机科学 2022-08-19 Qian Li , Shu Guo , Jia Wu , Jianxin Li , Jiawei Sheng , Lihong Wang , Xiaohan Dong , Hao Peng

Despite the significant progress made by transformer models in machine reading comprehension tasks, they still fall short in handling complex reasoning tasks due to the absence of explicit knowledge in the input sequence. To address this…

计算与语言 · 计算机科学 2024-01-17 Shima Foolad , Kourosh Kiani

State-of-the-art methods for relation extraction consider the sentential context by modeling the entire sentence. However, syntactic indicators, certain phrases or words like prepositions that are more informative than other words and may…

计算与语言 · 计算机科学 2019-12-05 Qiongxing Tao , Xiangfeng Luo , Hao Wang

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

Document-level relation extraction (DocRE) aims to extract relations between entities from unstructured document text. Compared to sentence-level relation extraction, it requires more complex semantic understanding from a broader text…

计算与语言 · 计算机科学 2024-09-10 Yanxu Mao , Xiaohui Chen , Peipei Liu , Tiehan Cui , Zuhui Yue , Zheng Li

Conventional approaches to relation extraction usually require a fixed set of pre-defined relations. Such requirement is hard to meet in many real applications, especially when new data and relations are emerging incessantly and it is…

计算与语言 · 计算机科学 2019-03-27 Hong Wang , Wenhan Xiong , Mo Yu , Xiaoxiao Guo , Shiyu Chang , William Yang Wang

Graph Convolutional Networks (GCN) have achieved state-of-art results on single text classification tasks like sentiment analysis, emotion detection, etc. However, the performance is achieved by testing and reporting on resource-rich…

计算与语言 · 计算机科学 2022-05-04 Mounika Marreddy , Subba Reddy Oota , Lakshmi Sireesha Vakada , Venkata Charan Chinni , Radhika Mamidi

Entity and relationship extraction is a crucial component in natural language processing tasks such as knowledge graph construction, question answering system design, and semantic analysis. Most of the information of the Yishui school of…

计算与语言 · 计算机科学 2024-02-19 Hanqing Zhao , Yuehan Li

The task of end-to-end relation extraction consists of two sub-tasks: i) identifying entity mentions along with their types and ii) recognizing semantic relations among the entity mention pairs. %Identifying entity mentions along with their…

人工智能 · 计算机科学 2017-12-05 Sachin Pawar , Pushpak Bhattacharya , Girish K. Palshikar

Non-local operations are usually used to capture long-range dependencies via aggregating global context to each position recently. However, most of the methods cannot preserve object shapes since they only focus on feature similarity but…

计算机视觉与模式识别 · 计算机科学 2020-12-18 Pengju Zhang , Yihong Wu , Jiagang Zhu

With the continuous development of deep learning (DL), the task of multimodal dialogue emotion recognition (MDER) has recently received extensive research attention, which is also an essential branch of DL. The MDER aims to identify the…

计算与语言 · 计算机科学 2024-09-04 Wei Ai , Yuntao Shou , Tao Meng , Nan Yin , Keqin Li

Span-based joint extraction simultaneously conducts named entity recognition (NER) and relation extraction (RE) in text span form. Recent studies have shown that token labels can convey crucial task-specific information and enrich token…

计算与语言 · 计算机科学 2022-07-19 Bin Ji , Shasha Li , Jie Yu , Jun Ma , Huijun Liu

Past work in relation extraction mostly focuses on binary relation between entity pairs within single sentence. Recently, the NLP community has gained interest in relation extraction in entity pairs spanning multiple sentences. In this…

计算与语言 · 计算机科学 2019-01-15 Pankaj Gupta , Subburam Rajaram , Hinrich Schütze , Bernt Andrassy , Thomas Runkler

Relation extraction has been widely studied to extract new relational facts from open corpus. Previous relation extraction methods are faced with the problem of wrong labels and noisy data, which substantially decrease the performance of…

信息检索 · 计算机科学 2018-05-01 Dongdong Yang , Senzhang Wang , Zhoujun Li

Automatic emotion recognition based on multichannel Electroencephalography (EEG) holds great potential in advancing human-computer interaction. However, several significant challenges persist in existing research on algorithmic emotion…

机器学习 · 计算机科学 2023-10-24 Hongxiang Gao , Xiangyao Wang , Zhenghua Chen , Min Wu , Zhipeng Cai , Lulu Zhao , Jianqing Li , Chengyu Liu

We build a bridge between neural network-based machine learning and graph-based natural language processing and introduce a unified approach to keyphrase, summary and relation extraction by aggregating dependency graphs from links provided…

人工智能 · 计算机科学 2019-09-27 Paul Tarau , Eduardo Blanco

Recently, progress has been made towards improving relational reasoning in machine learning field. Among existing models, graph neural networks (GNNs) is one of the most effective approaches for multi-hop relational reasoning. In fact,…

计算与语言 · 计算机科学 2019-02-05 Hao Zhu , Yankai Lin , Zhiyuan Liu , Jie Fu , Tat-seng Chua , Maosong Sun