{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1361418520445158656.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1029/2019sw002214"}},{"identifier":{"@type":"URI","@value":"https://onlinelibrary.wiley.com/doi/pdf/10.1029/2019SW002214"}},{"identifier":{"@type":"URI","@value":"https://onlinelibrary.wiley.com/doi/full-xml/10.1029/2019SW002214"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/am-pdf/10.1029/2019SW002214"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2019SW002214"}}],"dc:title":[{"@value":"Identifying Solar Flare Precursors Using Time Series of SDO/HMI Images and SHARP Parameters"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>Abstract</jats:title><jats:p>In this paper we present several methods to identify precursors that show great promise for early predictions of solar flare events. A data preprocessing pipeline is built to extract useful data from multiple sources, Geostationary Operational Environmental Satellites and Solar Dynamics Observatory (SDO)/Helioseismic and Magnetic Imager (HMI), to prepare inputs for machine learning algorithms. Two classification models are presented: classification of flares from quiet times for active regions and classification of strong versus weak flare events. We adopt deep learning algorithms to capture both spatial and temporal information from HMI magnetogram data. Effective feature extraction and feature selection with raw magnetogram data using deep learning and statistical algorithms enable us to train classification models to achieve almost as good performance as using active region parameters provided in HMI/Space‐Weather HMI‐Active Region Patch (SHARP) data files. Case studies show a significant increase in the prediction score around 20 hr before strong solar flare events.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1381418520445158665","@type":"Researcher","foaf:name":[{"@value":"Yang Chen"}],"jpcoar:affiliationName":[{"@value":"Department of Statistics University of Michigan  Ann Arbor MI USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381418520445158658","@type":"Researcher","foaf:name":[{"@value":"Ward B. Manchester"}],"jpcoar:affiliationName":[{"@value":"Department of Climate and Space Sciences and Engineering University of Michigan  Ann Arbor MI USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381418520445158664","@type":"Researcher","foaf:name":[{"@value":"Alfred O. Hero"}],"jpcoar:affiliationName":[{"@value":"Department of Electrical Engineering and Computer Science University of Michigan  Ann Arbor MI USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381418520445158661","@type":"Researcher","foaf:name":[{"@value":"Gabor Toth"}],"jpcoar:affiliationName":[{"@value":"Department of Climate and Space Sciences and Engineering University of Michigan  Ann Arbor MI USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381418520445158660","@type":"Researcher","foaf:name":[{"@value":"Benoit DuFumier"}],"jpcoar:affiliationName":[{"@value":"Department of Electrical Engineering and Computer Science University of Michigan  Ann Arbor MI USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381418520445158659","@type":"Researcher","foaf:name":[{"@value":"Tian Zhou"}],"jpcoar:affiliationName":[{"@value":"Department of Statistics University of Michigan  Ann Arbor MI USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381418520445158657","@type":"Researcher","foaf:name":[{"@value":"Xiantong Wang"}],"jpcoar:affiliationName":[{"@value":"Department of Climate and Space Sciences and Engineering University of Michigan  Ann Arbor MI USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381418520445158663","@type":"Researcher","foaf:name":[{"@value":"Haonan Zhu"}],"jpcoar:affiliationName":[{"@value":"Department of Electrical Engineering and Computer Science University of Michigan  Ann Arbor MI USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381418520445158662","@type":"Researcher","foaf:name":[{"@value":"Zeyu Sun"}],"jpcoar:affiliationName":[{"@value":"Department of Electrical Engineering and Computer Science University of Michigan  Ann Arbor MI USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381418520445158656","@type":"Researcher","foaf:name":[{"@value":"Tamas I. Gombosi"}],"jpcoar:affiliationName":[{"@value":"Department of Climate and Space Sciences and Engineering University of Michigan  Ann Arbor MI USA"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"15427390"},{"@type":"EISSN","@value":"15427390"}],"prism:publicationName":[{"@value":"Space Weather"}],"dc:publisher":[{"@value":"American Geophysical Union (AGU)"}],"prism:publicationDate":"2019-10","prism:volume":"17","prism:number":"10","prism:startingPage":"1404","prism:endingPage":"1426"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#am","http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://onlinelibrary.wiley.com/doi/pdf/10.1029/2019SW002214"},{"@id":"https://onlinelibrary.wiley.com/doi/full-xml/10.1029/2019SW002214"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/am-pdf/10.1029/2019SW002214"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2019SW002214"}],"createdAt":"2019-08-22","modifiedAt":"2023-09-08","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/2050588892101955200","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Operational solar flare prediction model using Deep Flare Net"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1029/2019sw002214"},{"@type":"CROSSREF","@value":"10.1186/s40623-021-01381-9_references_DOI_5yaKibM2sXmx9KUClNGcvfMy9wB"}]}