Results 21 to 30 of about 298 (213)

Improving Distantly-Supervised Named Entity Recognition for Traditional Chinese Medicine Text via a Novel Back-Labeling Approach

open access: yesIEEE Access, 2020
Recent advances in deep neural networks (DNNs) have enabled us to achieve reliable named entity recognition (NER) models without handcrafting features. However, these are also some obstacles imposed by using those machine learning methods, in need of a ...
Dezheng Zhang   +6 more
doaj   +1 more source

Distant Supervision from Knowledge Graphs [PDF]

open access: yes, 2018
In this chapter, we discuss approaches leveraging distant supervision for relation extraction. We start by introducing the key ideas behind distant supervision as well as their main shortcomings. We then discuss approaches that improve over the basic method, including approaches based on the at-least-one-principle along with their extensions for ...
Smirnova, Alisa   +2 more
openaire   +2 more sources

Jointly Embedding Entities and Text with Distant Supervision [PDF]

open access: yesProceedings of The Third Workshop on Representation Learning for NLP, 2018
12 pages; Accepted to 3rd Workshop on Representation Learning for NLP (Repl4NLP 2018).
Newman-Griffis, D.   +2 more
openaire   +3 more sources

Learning to Rationalize for Nonmonotonic Reasoning with Distant Supervision

open access: yesProceedings of the AAAI Conference on Artificial Intelligence, 2021
The black-box nature of neural models has motivated a line of research that aims to generate natural language rationales to explain why a model made certain predictions. Such rationale generation models, to date, have been trained on dataset-specific crowdsourced rationales, but this approach is costly and is not generalizable to new tasks and domains.
Faeze Brahman   +3 more
openaire   +2 more sources

Chemical-induced disease relation extraction via attention-based distant supervision

open access: yesBMC Bioinformatics, 2019
Background Automatically understanding chemical-disease relations (CDRs) is crucial in various areas of biomedical research and health care. Supervised machine learning provides a feasible solution to automatically extract relations between biomedical ...
Jinghang Gu   +3 more
doaj   +1 more source

Boosting Knowledge Base Automatically via Few-Shot Relation Classification

open access: yesFrontiers in Neurorobotics, 2020
Relation classification (RC) aims at extracting structural information, i.e., triplets of two entities with a relation, from free texts, which is pivotal for automatic knowledge base construction. In this paper, we investigate a fully automatic method to
Ning Pang   +3 more
doaj   +1 more source

An Attention-Based Model Using Character Composition of Entities in Chinese Relation Extraction

open access: yesInformation, 2020
Relation extraction is a vital task in natural language processing. It aims to identify the relationship between two specified entities in a sentence. Besides information contained in the sentence, additional information about the entities is verified to
Xiaoyu Han   +3 more
doaj   +1 more source

Iterative Annotation of Biomedical NER Corpora with Deep Neural Networks and Knowledge Bases

open access: yesApplied Sciences, 2022
The large availability of clinical natural language documents, such as clinical narratives or diagnoses, requires the definition of smart automatic systems for their processing and analysis, but the lack of annotated corpora in the biomedical domain ...
Stefano Silvestri   +2 more
doaj   +1 more source

Information Extraction Using Distant Supervision and Semantic Similarities

open access: yesAdvances in Electrical and Computer Engineering, 2016
Information extraction is one of the main research tasks in natural language processing and text mining that extracts useful information from unstructured sentences. Information extraction techniques include named entity recognition, relation extraction,
PARK, Y., KANG, S., SEO, J.
doaj   +1 more source

Distantly Supervised Named Entity Recognition with Self-Adaptive Label Correction

open access: yesApplied Sciences, 2022
Named entity recognition has achieved remarkable success on benchmarks with high-quality manual annotations. Such annotations are labor-intensive and time-consuming, thus unavailable in real-world scenarios.
Binling Nie, Chenyang Li
doaj   +1 more source

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