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Extractive text summarization aims at extracting the most representative sentences from a given document as its summary. To extract a good summary from a long text document, sentence embedding plays an important role. Recent studies have…

计算与语言 · 计算机科学 2021-09-10 Baoyu Jing , Zeyu You , Tao Yang , Wei Fan , Hanghang Tong

In practical scenario, relation extraction needs to first identify entity pairs that have relation and then assign a correct relation class. However, the number of non-relation entity pairs in context (negative instances) usually far…

计算与语言 · 计算机科学 2019-06-24 Wei Ye , Bo Li , Rui Xie , Zhonghao Sheng , Long Chen , Shikun Zhang

To minimize the accelerating amount of time invested in the biomedical literature search, numerous approaches for automated knowledge extraction have been proposed. Relation extraction is one such task where semantic relations between the…

计算与语言 · 计算机科学 2020-09-22 Shweta Yadav , Srivatsa Ramesh , Sriparna Saha , Asif Ekbal

Relation extraction (RE) consists in categorizing the relationship between entities in a sentence. A recent paradigm to develop relation extractors is Distant Supervision (DS), which allows the automatic creation of new datasets by taking…

计算与语言 · 计算机科学 2020-10-20 Johny Moreira , Chaina Oliveira , David Macêdo , Cleber Zanchettin , Luciano Barbosa

In knowledge graph construction, a challenging issue is how to extract complex (e.g., overlapping) entities and relationships from a small amount of unstructured historical data. The traditional pipeline methods are to divide the extraction…

计算与语言 · 计算机科学 2024-05-24 Jian Cheng , Tian Zhang , Shuang Zhang , Huimin Ren , Guo Yu , Xiliang Zhang , Shangce Gao , Lianbo Ma

Relation Extraction (RE) is the task of extracting semantic relationships between entities in a sentence and aligning them to relations defined in a vocabulary, which is generally in the form of a Knowledge Graph (KG) or an ontology.…

计算与语言 · 计算机科学 2023-09-06 Monika Jain , Kuldeep Singh , Raghava Mutharaju

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

The ability to accurately represent sentences is central to language understanding. We describe a convolutional architecture dubbed the Dynamic Convolutional Neural Network (DCNN) that we adopt for the semantic modelling of sentences. The…

计算与语言 · 计算机科学 2014-04-09 Nal Kalchbrenner , Edward Grefenstette , Phil Blunsom

Parallel sentence extraction is a task addressing the data sparsity problem found in multilingual natural language processing applications. We propose an end-to-end deep neural network approach to detect translational equivalence between…

计算与语言 · 计算机科学 2017-09-29 Francis Grégoire , Philippe Langlais

Structured information extraction from scientific literature is crucial for capturing core concepts and emerging trends in specialized fields. While existing datasets aid model development, most focus on specific publication sections due to…

计算与语言 · 计算机科学 2026-04-06 Decheng Duan , Yingyi Zhang , Jitong Peng , Chengzhi Zhang

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

Nowadays, neural networks play an important role in the task of relation classification. By designing different neural architectures, researchers have improved the performance to a large extent in comparison with traditional methods.…

计算与语言 · 计算机科学 2016-10-14 Yan Xu , Ran Jia , Lili Mou , Ge Li , Yunchuan Chen , Yangyang Lu , Zhi Jin

Relation extraction is a fundamental problem in natural language processing. Most existing models are defined for relation extraction in the general domain. However, their performance on specific domains (e.g., biomedicine) is yet unclear.…

计算与语言 · 计算机科学 2021-12-14 Yongkang Li

Sentiment analysis is known as one of the most crucial tasks in the field of natural language processing and Convolutional Neural Network (CNN) is one of those prominent models that is commonly used for this aim. Although convolutional…

计算与语言 · 计算机科学 2021-02-24 Hossein Sadr , Mozhdeh Nazari Solimandarabi , Mir Mohsen Pedram , Mohammad Teshnehlab

Recent years have seen rapid progress in identifying predefined relationship between entity pairs using neural networks NNs. However, such models often make predictions for each entity pair individually, thus often fail to solve the…

计算与语言 · 计算机科学 2019-11-27 Yuan Ye , Yansong Feng , Bingfeng Luo , Yuxuan Lai , Dongyan Zhao

Joint extraction of entities and relations aims to detect entity pairs along with their relations using a single model. Prior work typically solves this task in the extract-then-classify or unified labeling manner. However, these methods…

计算与语言 · 计算机科学 2020-02-20 Bowen Yu , Zhenyu Zhang , Xiaobo Shu , Yubin Wang , Tingwen Liu , Bin Wang , Sujian Li

Extracting entity pairs along with relation types from unstructured texts is a fundamental subtask of information extraction. Most existing joint models rely on fine-grained labeling scheme or focus on shared embedding parameters. These…

人工智能 · 计算机科学 2020-10-16 Bin-Bin Zhao , Liang Li , Hui-Dong Zhang

Mining relationships between treatment(s) and medical problem(s) is vital in the biomedical domain. This helps in various applications, such as decision support system, safety surveillance, and new treatment discovery. We propose a deep…

机器学习 · 计算机科学 2018-07-02 Veera Raghavendra Chikka , Kamalakar Karlapalem

Many modern entity recognition systems, including the current state-of-the-art de-identification systems, are based on bidirectional long short-term memory (biLSTM) units augmented by a conditional random field (CRF) sequence optimizer.…

计算与语言 · 计算机科学 2021-02-18 Kahyun Lee , Mehmet Kayaalp , Sam Henry , Özlem Uzuner

This paper presents a neural relation extraction method to deal with the noisy training data generated by distant supervision. Previous studies mainly focus on sentence-level de-noising by designing neural networks with intra-bag…

计算与语言 · 计算机科学 2019-04-02 Zhi-Xiu Ye , Zhen-Hua Ling