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Graph node classification with few labeled nodes presents significant challenges due to limited supervision. Conventional methods often exploit the graph in a transductive learning manner. They fail to effectively utilize the abundant…

Machine Learning · Computer Science 2024-07-03 Shuaike Xu , Xiaolin Zhang , Peng Zhang , Kun Zhan

Graph convolutional network (GCN) has been successfully applied to capture global non-consecutive and long-distance semantic information for text classification. However, while GCN-based methods have shown promising results in offline…

Computation and Language · Computer Science 2023-04-11 Tiandeng Wu , Qijiong Liu , Yi Cao , Yao Huang , Xiao-Ming Wu , Jiandong Ding

Relation Extraction (RE) is one of the fundamental tasks in Information Extraction and Natural Language Processing. Dependency trees have been shown to be a very useful source of information for this task. The current deep learning models…

Computation and Language · Computer Science 2019-07-09 Amir Pouran Ben Veyseh , Thien Huu Nguyen , Dejing Dou

We introduce a general framework for several information extraction tasks that share span representations using dynamically constructed span graphs. The graphs are constructed by selecting the most confident entity spans and linking these…

Computation and Language · Computer Science 2019-04-09 Yi Luan , Dave Wadden , Luheng He , Amy Shah , Mari Ostendorf , Hannaneh Hajishirzi

Recently, deep learning-based beamforming algorithms have shown promising performance in target speech extraction tasks. However, most systems do not fully utilize spatial information. In this paper, we propose a target speech extraction…

Sound · Computer Science 2023-06-29 Aoqi Guo , Junnan Wu , Peng Gao , Wenbo Zhu , Qinwen Guo , Dazhi Gao , Yujun Wang

In this paper we propose the Structured Deep Neural Network (structured DNN) as a structured and deep learning framework. This approach can learn to find the best structured object (such as a label sequence) given a structured input (such…

Computation and Language · Computer Science 2015-11-10 Yi-Hsiu Liao , Hung-yi Lee , Lin-shan Lee

Sequence labeling is a widely used method for named entity recognition and information extraction from unstructured natural language data. In clinical domain one major application of sequence labeling involves extraction of medical entities…

Computation and Language · Computer Science 2016-08-03 Abhyuday Jagannatha , Hong Yu

Identifying controversial posts on social media is a fundamental task for mining public sentiment, assessing the influence of events, and alleviating the polarized views. However, existing methods fail to 1) effectively incorporate the…

Computation and Language · Computer Science 2020-05-19 Lei Zhong , Juan Cao , Qiang Sheng , Junbo Guo , Ziang Wang

A comprehensive and high-quality lexicon plays a crucial role in traditional text classification approaches. And it improves the utilization of the linguistic knowledge. Although it is helpful for the task, the lexicon has got little…

Computation and Language · Computer Science 2020-02-19 QingBiao LI , Chunhua Wu , Kangfeng Zheng

Event mentions in text correspond to real-world events of varying degrees of granularity. The task of subevent detection aims to resolve this granularity issue, recognizing the membership of multi-granular events in event complexes. Since…

Computation and Language · Computer Science 2021-09-15 Haoyu Wang , Hongming Zhang , Muhao Chen , Dan Roth

Fully understanding narratives often requires identifying events in the context of whole documents and modeling the event relations. However, document-level event extraction is a challenging task as it requires the extraction of event and…

Computation and Language · Computer Science 2021-05-11 Kung-Hsiang Huang , Nanyun Peng

This paper introduces a new information extraction model for business documents. Different from prior studies which only base on span extraction or sequence labeling, the model takes into account advantage of both span extraction and…

Computation and Language · Computer Science 2022-05-27 Nguyen Hong Son , Hieu M. Vu , Tuan-Anh D. Nguyen , Minh-Tien Nguyen

In the sentence classification task, context formed from sentences adjacent to the sentence being classified can provide important information for classification. This context is, however, often ignored. Where methods do make use of…

Information Retrieval · Computer Science 2018-09-05 Xingyi Song , Johann Petrak , Angus Roberts

Sequential sentence classification deals with the categorisation of sentences based on their content and context. Applied to scientific texts, it enables the automatic structuring of research papers and the improvement of academic search…

Computation and Language · Computer Science 2022-03-22 Arthur Brack , Anett Hoppe , Pascal Buschermöhle , Ralph Ewerth

A discriminative structured analysis dictionary is proposed for the classification task. A structure of the union of subspaces (UoS) is integrated into the conventional analysis dictionary learning to enhance the capability of…

Computer Vision and Pattern Recognition · Computer Science 2019-09-17 Wen Tang , Ashkan Panahi , Hamid Krim , Liyi Dai

We examine the capabilities of a unified, multi-task framework for three information extraction tasks: named entity recognition, relation extraction, and event extraction. Our framework (called DyGIE++) accomplishes all tasks by…

Computation and Language · Computer Science 2019-09-11 David Wadden , Ulme Wennberg , Yi Luan , Hannaneh Hajishirzi

Speaker identification, determining which character said each utterance in literary text, benefits many downstream tasks. Most existing approaches use expert-defined rules or rule-based features to directly approach this task, but these…

Computation and Language · Computer Science 2022-10-13 Ben Zhou , Dian Yu , Dong Yu , Dan Roth

Keyphrases are capable of providing semantic metadata characterizing documents and producing an overview of the content of a document. Since keyphrase extraction is able to facilitate the management, categorization, and retrieval of…

Computation and Language · Computer Science 2020-02-14 Funan Mu , Zhenting Yu , LiFeng Wang , Yequan Wang , Qingyu Yin , Yibo Sun , Liqun Liu , Teng Ma , Jing Tang , Xing Zhou

Reading text in the wild is a challenging task in the field of computer vision. Existing approaches mainly adopted Connectionist Temporal Classification (CTC) or Attention models based on Recurrent Neural Network (RNN), which is…

Computer Vision and Pattern Recognition · Computer Science 2017-09-14 Yunze Gao , Yingying Chen , Jinqiao Wang , Hanqing Lu

Visual relationship detection can bridge the gap between computer vision and natural language for scene understanding of images. Different from pure object recognition tasks, the relation triplets of subject-predicate-object lie on an…

Computer Vision and Pattern Recognition · Computer Science 2018-09-18 Zhen Cui , Chunyan Xu , Wenming Zheng , Jian Yang