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Biomedical event extraction is critical in understanding biomolecular interactions described in scientific corpus. One of the main challenges is to identify nested structured events that are associated with non-indicative trigger words. We…

Computation and Language · Computer Science 2020-10-13 Kung-Hsiang Huang , Mu Yang , Nanyun Peng

Biomedical events describe complex interactions between various biomedical entities. Event trigger is a word or a phrase which typically signifies the occurrence of an event. Event trigger identification is an important first step in all…

Computation and Language · Computer Science 2017-05-29 Patchigolla V S S Rahul , Sunil Kumar Sahu , Ashish Anand

Biomedical Event Extraction (BEE) is a challenging task that involves modeling complex relationships between fine-grained entities in biomedical text. BEE has traditionally been formulated as a classification problem. With recent…

Computation and Language · Computer Science 2025-02-24 Haohan Yuan , Siu Cheung Hui , Haopeng Zhang

We introduce a biomedical information extraction (IE) pipeline that extracts biological relationships from text and demonstrate that its components, such as named entity recognition (NER) and relation extraction (RE), outperform…

Machine Learning · Computer Science 2020-11-13 Jupinder Parmar , William Koehler , Martin Bringmann , Katharina Sophia Volz , Berk Kapicioglu

We propose a joint event and temporal relation extraction model with shared representation learning and structured prediction. The proposed method has two advantages over existing work. First, it improves event representation by allowing…

Computation and Language · Computer Science 2020-09-17 Rujun Han , Qiang Ning , Nanyun Peng

Due to the exponential growth of biomedical literature, event and relation extraction are important tasks in biomedical text mining. Most work only focus on relation extraction, and detect a single entity pair mention on a short span of…

Computation and Language · Computer Science 2020-05-08 Elaheh ShafieiBavani , Antonio Jimeno Yepes , Xu Zhong , David Martinez Iraola

Biomedical entity linking and event extraction are two crucial tasks to support text understanding and retrieval in the biomedical domain. These two tasks intrinsically benefit each other: entity linking disambiguates the biomedical…

Computation and Language · Computer Science 2023-05-25 Xiaochu Li , Minqian Liu , Zhiyang Xu , Lifu Huang

Causal relation extraction of biomedical entities is one of the most complex tasks in biomedical text mining, which involves two kinds of information: entity relations and entity functions. One feasible approach is to take relation…

Computation and Language · Computer Science 2022-08-03 Dongling Li , Pengchao Wu , Yuehu Dong , Jinghang Gu , Longhua Qian , Guodong Zhou

In recent years, biomedical event extraction has been dominated by complicated pipeline and joint methods, which need to be simplified. In addition, existing work has not effectively utilized trigger word information explicitly. Hence, we…

Computation and Language · Computer Science 2024-08-15 Gongchi Chen , Pengchao Wu , Jinghang Gu , Longhua Qian , Guodong Zhou

Event extraction has long been treated as a sentence-level task in the IE community. We argue that this setting does not match human information-seeking behavior and leads to incomplete and uninformative extraction results. We propose a…

Computation and Language · Computer Science 2021-04-14 Sha Li , Heng Ji , Jiawei Han

Radiology reports contain a diverse and rich set of clinical abnormalities documented by radiologists during their interpretation of the images. Comprehensive semantic representations of radiological findings would enable a wide range of…

Computation and Language · Computer Science 2021-12-28 Wilson Lau , Kevin Lybarger , Martin L. Gunn , Meliha Yetisgen

Biomedical Information Extraction is an exciting field at the crossroads of Natural Language Processing, Biology and Medicine. It encompasses a variety of different tasks that require application of state-of-the-art NLP techniques, such as…

Computation and Language · Computer Science 2017-05-17 Surag Nair

Motivation: Biomedical event detection is fundamental for information extraction in molecular biology and biomedical research. The detected events form the central basis for comprehensive biomedical knowledge fusion, facilitating the…

Computation and Language · Computer Science 2019-05-06 Shankai Yan , Ka-Chun Wong

Event Extraction plays an important role in information-extraction to understand the world. Event extraction could be split into two subtasks: one is event trigger extraction, the other is event arguments extraction. However, the F-Score of…

Computation and Language · Computer Science 2020-06-04 Zhigang Kan , Linbo Qiao , Sen Yang , Feng Liu , Feng Huang

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…

Computation and Language · Computer Science 2022-08-19 Qian Li , Shu Guo , Jia Wu , Jianxin Li , Jiawei Sheng , Lihong Wang , Xiaohan Dong , Hao Peng

Nested Event Extraction (NEE) aims to extract complex event structures where an event contains other events as its arguments recursively. Nested events involve a kind of Pivot Elements (PEs) that simultaneously act as arguments of…

Computation and Language · Computer Science 2024-04-09 Weicheng Ren , Zixuan Li , Xiaolong Jin , Long Bai , Miao Su , Yantao Liu , Saiping Guan , Jiafeng Guo , Xueqi Cheng

Speech Event Extraction (SpeechEE) is a challenging task that lies at the intersection of Automatic Speech Recognition (ASR) and Natural Language Processing (NLP), requiring the identification of structured event information from spoken…

Computation and Language · Computer Science 2025-09-30 Máté Gedeon

Event extraction is a fundamental task for natural language processing. Finding the roles of event arguments like event participants is essential for event extraction. However, doing so for real-life event descriptions is challenging…

Computation and Language · Computer Science 2021-12-23 Qian Li , Hao Peng , Jianxin Li , Jia Wu , Yuanxing Ning , Lihong Wang , Philip S. Yu , Zheng Wang

Joint event and causality extraction is a challenging yet essential task in information retrieval and data mining. Recently, pre-trained language models (e.g., BERT) yield state-of-the-art results and dominate in a variety of NLP tasks.…

Computation and Language · Computer Science 2021-02-22 Zijian Wang , Hao Wang , Xiangfeng Luo , Jianqi Gao

This work presents our participation in the EvalLLM 2025 challenge on biomedical Named Entity Recognition (NER) and health event extraction in French (few-shot setting). For NER, we propose three approaches combining large language models…

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