Results 21 to 30 of about 1,836,012 (321)

Zero-Shot Relation Triple Extraction with Prompts for Low-Resource Languages

open access: yesApplied Sciences, 2023
Although low-resource relation extraction is vital in knowledge construction and characterization, more research is needed on the generalization of unknown relation types. To fill the gap in the study of low-resource (Uyghur) relation extraction methods,
Ayiguli Halike   +2 more
doaj   +1 more source

A multi-scale filament extraction method: getfilaments [PDF]

open access: yes, 2013
Far-infrared imaging surveys of Galactic star-forming regions with Herschel have shown that a substantial part of the cold interstellar medium appears as a fascinating web of omnipresent filamentary structures.
Men'shchikov, A.
core   +4 more sources

Entity Relation Extraction Method Integrating Pre-trained Model and Attention [PDF]

open access: yesJisuanji kexue yu tansuo, 2023
Entity relationship extraction aims to detect the relationship between entities and entity pairs from unstruc-tured text. It is an important step in constructing domain knowledge map.
LI Zhijie, HAN Ruirui, LI Changhua, ZHANG Jie, SHI Haoqi
doaj   +1 more source

Antigenic Relationships in Insect Extracts.

open access: yesExperimental Biology and Medicine, 1958
Summary1. Extracts of mayfly, fly, cockroach, cricket and silk have been investigated by hemagglutination and agar precipitation technics. 2. Evidence has been obtained for the presence of specific antigens in each extract as well as antigens common to one or more of the other extracts. 3.
J, PRUZANSKY   +3 more
openaire   +2 more sources

A Joint Extraction Model for Entity Relationships Based on Span and Cascaded Dual Decoding

open access: yesEntropy, 2023
The entity–relationship joint extraction model plays a significant role in entity relationship extraction. The existing entity–relationship joint extraction model cannot effectively identify entity–relationship triples in overlapping relationships.
Tao Liao, Haojie Sun, Shunxiang Zhang
doaj   +1 more source

Entity-Relation Joint Extraction Model Based on Span and Feature Fusion [PDF]

open access: yesJisuanji gongcheng, 2023
The entity-relationship joint extraction model plays an important role in entity-relationship extraction; however,the existing entity-relationship joint extraction model cannot effectively identify entity-relation triples in overlapping relationships ...
LIAO Tao, SUN Haojie, ZHANG Shunxiang
doaj   +1 more source

A Combined Approach for Eliciting Relationships for Educational Ontologies Using General-Purpose Knowledge Bases

open access: yesIEEE Access, 2019
Educational Ontologies describe learning domains by specifying the topics to be learned together with the relationships among the topics. Any technology supported learning system could take advantage of an educational ontology in the process of guiding ...
Angel Conde   +3 more
doaj   +1 more source

A Novel Joint Extraction Model for Entity Relations Using Interactive Encoding and Visual Attention

open access: yesIEEE Access, 2023
Relationship extraction is a fundamental task in natural language processing, with applications ranging from knowledge graph construction to information retrieval. Existing entity-relationship joint extraction models have made significant strides in this
Youren Yu   +3 more
doaj   +1 more source

The Flavor Asymmetry of the Light Quark Sea from Semi-inclusive Deep-inelastic Scattering [PDF]

open access: yes, 1998
The flavor asymmetry of the light quark sea of the nucleon is determined in the kinematic range 0 ...
A. Airapetian   +203 more
core   +3 more sources

Effects of extraction and fractionation period on the yield of a tropical peat soil (Hemists) humic acids [PDF]

open access: yes, 2007
The isolation of humic acids from soils is laborious and time consuming. Factors that affect the yield of humic acids isolated from soils include extraction, fractionation and purification periods.
Ahmed, Osumanu Haruna   +3 more
core   +1 more source

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