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Nested named entity recognition (nested NER) is a fundamental task in natural language processing. Various span-based methods have been proposed to detect nested entities with span representations. However, span-based methods do not…

Computation and Language · Computer Science 2022-09-07 Shuhui Wu , Yongliang Shen , Zeqi Tan , Weiming Lu

With increasing applications in areas such as biomedical information extraction pipelines and social media analytics, Named Entity Recognition (NER) has become an indispensable tool for knowledge extraction. However, with the gradual shift…

Computation and Language · Computer Science 2022-06-30 Supriti Vijay , Aman Priyanshu

Named entity recognition (NER) suffers from the scarcity of annotated training data, especially for low-resource languages without labeled data. Cross-lingual NER has been proposed to alleviate this issue by transferring knowledge from…

Computation and Language · Computer Science 2022-10-14 Jian Yang , Shaohan Huang , Shuming Ma , Yuwei Yin , Li Dong , Dongdong Zhang , Hongcheng Guo , Zhoujun Li , Furu Wei

The "CNN-RNN" design pattern is increasingly widely applied in a variety of image annotation tasks including multi-label classification and captioning. Existing models use the weakly semantic CNN hidden layer or its transform as the image…

Computer Vision and Pattern Recognition · Computer Science 2016-11-18 Feng Liu , Tao Xiang , Timothy M. Hospedales , Wankou Yang , Changyin Sun

Named entity recognition (NER) is a well-studied task in natural language processing. Traditional NER research only deals with flat entities and ignores nested entities. The span-based methods treat entity recognition as a span…

Computation and Language · Computer Science 2021-07-14 Yongliang Shen , Xinyin Ma , Zeqi Tan , Shuai Zhang , Wen Wang , Weiming Lu

The dominant approaches for named entity recognition (NER) mostly adopt complex recurrent neural networks (RNN), e.g., long-short-term-memory (LSTM). However, RNNs are limited by their recurrent nature in terms of computational efficiency.…

Computation and Language · Computer Science 2019-07-22 Hui Chen , Zijia Lin , Guiguang Ding , Jianguang Lou , Yusen Zhang , Borje Karlsson

The information bottleneck (IB) principle has been proven effective in various NLP applications. The existing work, however, only used either generative or information compression models to improve the performance of the target task. In…

Computation and Language · Computer Science 2023-02-13 Nhung T. H. Nguyen , Makoto Miwa , Sophia Ananiadou

Named Entity Recognition (NER) is a challenging and widely studied task that involves detecting and typing entities in text. So far,NER still approaches entity typing as a task of classification into universal classes (e.g. date, person, or…

Computation and Language · Computer Science 2023-02-22 Tristan Luiggi , Laure Soulier , Vincent Guigue , Siwar Jendoubi , Aurélien Baelde

Cross-domain NER is a practical yet challenging problem since the data scarcity in the real-world scenario. A common practice is first to learn a NER model in a rich-resource general domain and then adapt the model to specific domains. Due…

Computation and Language · Computer Science 2024-08-09 Junhao Zheng , Haibin Chen , Qianli Ma

Clinical information extraction (e.g., 2010 i2b2/VA challenge) usually presents tasks of concept recognition, assertion classification, and relation extraction. Jointly modeling the multi-stage tasks in the clinical domain is an…

Computation and Language · Computer Science 2026-03-10 Fei Cheng , Ribeka Tanaka , Sadao Kurohashi

Named entity recognition (NER) and relation extraction (RE) are two important tasks in information extraction and retrieval (IE \& IR). Recent work has demonstrated that it is beneficial to learn these tasks jointly, which avoids the…

Computation and Language · Computer Science 2020-01-01 John Giorgi , Xindi Wang , Nicola Sahar , Won Young Shin , Gary D. Bader , Bo Wang

Named entity recognition (NER) is a fundamental component in the modern language understanding pipeline. Public NER resources such as annotated data and model services are available in many domains. However, given a particular downstream…

Computation and Language · Computer Science 2020-04-20 Keunwoo Peter Yu , Yi Yang

Concept normalization in free-form texts is a crucial step in every text-mining pipeline. Neural architectures based on Bidirectional Encoder Representations from Transformers (BERT) have achieved state-of-the-art results in the biomedical…

Computation and Language · Computer Science 2021-01-26 Zulfat Miftahutdinov , Artur Kadurin , Roman Kudrin , Elena Tutubalina

Correctly identifying sleep stages is important in diagnosing and treating sleep disorders. This work proposes a joint classification-and-prediction framework based on CNNs for automatic sleep staging, and, subsequently, introduces a simple…

Machine Learning · Computer Science 2019-02-05 Huy Phan , Fernando Andreotti , Navin Cooray , Oliver Y. Chén , Maarten De Vos

Biomedical Named Entity Recognition (NER) is a fundamental task of Biomedical Natural Language Processing for extracting relevant information from biomedical texts, such as clinical records, scientific publications, and electronic health…

Computation and Language · Computer Science 2023-12-27 Fahime Shahrokh , Nasser Ghadiri , Rasoul Samani , Milad Moradi

Modern automatic translation systems aim at place the human at the center by providing contextual support and knowledge. In this context, a critical task is enriching the output with information regarding the mentioned entities, which is…

Computation and Language · Computer Science 2023-10-09 Marco Gaido , Sara Papi , Matteo Negri , Marco Turchi

Named Entity Recognition (NER) is a key step in the creation of structured data from digitised historical documents. Traditional NER approaches deal with flat named entities, whereas entities often are nested. For example, a postal address…

Information Retrieval · Computer Science 2023-02-22 Solenn Tual , Nathalie Abadie , J Chazalon , Bertrand Duménieu , Edwin Carlinet

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

We introduce a parallelizable simplification of Neural Turing Machine (NTM), referred to as P-NTM, which redesigns the core operations of the original architecture to enable efficient scan-based parallel execution. We evaluate the proposed…

Neural and Evolutionary Computing · Computer Science 2026-02-24 Gabriel Faria , Arnaldo Candido Junior

Constituency parsing and nested named entity recognition (NER) are similar tasks since they both aim to predict a collection of nested and non-crossing spans. In this work, we cast nested NER to constituency parsing and propose a novel…

Computation and Language · Computer Science 2022-03-10 Songlin Yang , Kewei Tu