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相关论文: Enhancing Clinical Concept Extraction with Context…

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Pretrained contextual and non-contextual subword embeddings have become available in over 250 languages, allowing massively multilingual NLP. However, while there is no dearth of pretrained embeddings, the distinct lack of systematic…

计算与语言 · 计算机科学 2019-06-05 Benjamin Heinzerling , Michael Strube

The notion of word embedding plays a fundamental role in natural language processing (NLP). However, pre-training word embedding for very large-scale vocabulary is computationally challenging for most existing methods. In this work, we show…

计算与语言 · 计算机科学 2021-09-16 Junsheng Kong , Weizhao Li , Zeyi Liu , Ben Liao , Jiezhong Qiu , Chang-Yu Hsieh , Yi Cai , Shengyu Zhang

Word Embeddings are used widely in multiple Natural Language Processing (NLP) applications. They are coordinates associated with each word in a dictionary, inferred from statistical properties of these words in a large corpus. In this paper…

计算与语言 · 计算机科学 2020-06-18 Adam Sutton , Nello Cristianini

In this work we leverage recent advances in context-sensitive language models to improve the task of query expansion. Contextualized word representation models, such as ELMo and BERT, are rapidly replacing static embedding models. We…

信息检索 · 计算机科学 2021-03-10 Shahrzad Naseri , Jeffrey Dalton , Andrew Yates , James Allan

Representation learning methods that transform encoded data (e.g., diagnosis and drug codes) into continuous vector spaces (i.e., vector embeddings) are critical for the application of deep learning in healthcare. Initial work in this area…

机器学习 · 计算机科学 2019-07-23 Khushbu Agarwal , Tome Eftimov , Raghavendra Addanki , Sutanay Choudhury , Suzanne Tamang , Robert Rallo

Single implementing, concatenating, adding or replacing of the representations has yielded significant improvements on many NLP tasks. Mainly in Relation Extraction where static, contextualized and others representations that are capable of…

计算与语言 · 计算机科学 2019-12-19 Jefferson A. Peña Torres , Raul Ernesto Gutierrez , Victor A. Bucheli , Fabio A. Gonzalez O

Distributed representations of medical concepts have been used to support downstream clinical tasks recently. Electronic Health Records (EHR) capture different aspects of patients' hospital encounters and serve as a rich source for…

计算与语言 · 计算机科学 2020-01-07 Shaika Chowdhury , Chenwei Zhang , Philip S. Yu , Yuan Luo

Contextual word embedding models, such as BioBERT and Bio_ClinicalBERT, have achieved state-of-the-art results in biomedical natural language processing tasks by focusing their pre-training process on domain-specific corpora. However, such…

计算与语言 · 计算机科学 2021-06-04 George Michalopoulos , Yuanxin Wang , Hussam Kaka , Helen Chen , Alexander Wong

Unsupervised pre-trained word embeddings are used effectively for many tasks in natural language processing to leverage unlabeled textual data. Often these embeddings are either used as initializations or as fixed word representations for…

计算与语言 · 计算机科学 2018-08-08 Artuur Leeuwenberg , Marie-Francine Moens

Grammatical error detection (GED) in non-native writing requires systems to identify a wide range of errors in text written by language learners. Error detection as a purely supervised task can be challenging, as GED datasets are limited in…

计算与语言 · 计算机科学 2020-05-04 Samuel Bell , Helen Yannakoudakis , Marek Rei

Attention-based models have become the leading approach in modeling medical language for Natural Language Processing (NLP) in clinical notes. These models outperform traditional techniques by effectively capturing contextual representations…

计算与语言 · 计算机科学 2025-09-26 Tariq Abdul-Quddoos , Xishuang Dong , Lijun Qian

Although considerable attention has been given to neural ranking architectures recently, far less attention has been paid to the term representations that are used as input to these models. In this work, we investigate how two pretrained…

信息检索 · 计算机科学 2019-08-20 Sean MacAvaney , Andrew Yates , Arman Cohan , Nazli Goharian

Dialogue act recognition is an important component of a large number of natural language processing pipelines. Many research works have been carried out in this area, but relatively few investigate deep neural networks and word embeddings.…

计算与语言 · 计算机科学 2020-10-23 Christophe Cerisara , Pavel Kral , Ladislav Lenc

The current dominance of deep neural networks in natural language processing is based on contextual embeddings such as ELMo, BERT, and BERT derivatives. Most existing work focuses on English; in contrast, we present here the first…

In this work, we examine the extent to which embeddings may encode marginalized populations differently, and how this may lead to a perpetuation of biases and worsened performance on clinical tasks. We pretrain deep embedding models (BERT)…

计算与语言 · 计算机科学 2020-03-26 Haoran Zhang , Amy X. Lu , Mohamed Abdalla , Matthew McDermott , Marzyeh Ghassemi

Given the recent advances and progress in Natural Language Processing (NLP), extraction of semantic relationships has been at the top of the research agenda in the last few years. This work has been mainly motivated by the fact that…

计算与语言 · 计算机科学 2020-04-30 Epaminondas Kapetanios , Vijayan Sugumaran , Anastassia Angelopoulou

We experiment with two recent contextualized word embedding methods (ELMo and BERT) in the context of open-domain argument search. For the first time, we show how to leverage the power of contextualized word embeddings to classify and…

计算与语言 · 计算机科学 2019-06-25 Nils Reimers , Benjamin Schiller , Tilman Beck , Johannes Daxenberger , Christian Stab , Iryna Gurevych

End-to-end neural machine translation has overtaken statistical machine translation in terms of translation quality for some language pairs, specially those with large amounts of parallel data. Besides this palpable improvement, neural…

计算与语言 · 计算机科学 2017-11-16 Cristina España-Bonet , Ádám Csaba Varga , Alberto Barrón-Cedeño , Josef van Genabith

Static word embeddings that represent words by a single vector cannot capture the variability of word meaning in different linguistic and extralinguistic contexts. Building on prior work on contextualized and dynamic word embeddings, we…

计算与语言 · 计算机科学 2021-06-09 Valentin Hofmann , Janet B. Pierrehumbert , Hinrich Schütze

Electronic health records (EHR) contain narrative notes that provide extensive details on the medical condition and management of patients. Natural language processing (NLP) of clinical notes can use observed frequencies of clinical terms…

计算与语言 · 计算机科学 2023-07-04 Bryan Cai , Sihang Zeng , Yucong Lin , Zheng Yuan , Doudou Zhou , Lu Tian