| 1. Identity statement | ||||
| Reference Type | Journal Article | |||
| Site | mtc-m21b.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34P/3QG9FK8 | |||
| Repository | sid.inpe.br/mtc-m21b/2018/02.06.12.19 (restricted access) | |||
| Last Update | 2018:02.06.12.19.11 (UTC) simone | |||
| Metadata Repository | sid.inpe.br/mtc-m21b/2018/02.06.12.19.11 | |||
| Metadata Last Update | 2019:01.14.17.05.24 (UTC) administrator | |||
| DOI | 10.3390/info9010008 | |||
| ISSN | 2078-2489 | |||
| Citation Key | DíscolaJúniorCecaFernRibe:2018:FlSeMi | |||
| Title | SeMiner: a flexible sequence miner method to forecast solar time series  | |||
| Year | 2018 | |||
| Month | jan. | |||
| Access Date | 2024, May 19 | |||
| Type of Work | journal article | |||
| Secondary Type | PRE PI | |||
| Number of Files | 1 | |||
| Size | 1943 KiB | |||
| 2. Context | ||||
| Author | 1 Díscola Júnior, Sérgio Luisir 2 Cecatto, José Roberto 3 Fernandes, Márcio Merino 4 Ribeiro, Marcela Xavier | |||
| Resume Identifier | 1 2 8JMKD3MGP5W/3C9JHJB | |||
| ORCID | 1 0000-0003-1173-2082 | |||
| Group | 1 2 DIDAS-CGCEA-INPE-MCTIC-GOV-BR | |||
| Affiliation | 1 Universidade Federal de São Carlos (UFCar) 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 Universidade Federal de São Carlos (UFCar) 4 Universidade Federal de São Carlos (UFCar) | |||
| Author e-Mail Address | 1 2 jr.cecatto@inpe.br | |||
| Journal | Information (Switzerland) | |||
| Volume | 9 | |||
| Number | 1 | |||
| Pages | e8 | |||
| History (UTC) | 2018-02-06 12:19:36 :: simone -> administrator :: 2018 2019-01-14 17:05:24 :: administrator -> simone :: 2018 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Content Type | External Contribution | |||
| Version Type | publisher | |||
| Keywords | solar flare X-rays k-nearest neighbour classifier sliding window forecasting time series data mining feature selection graphical processing unit (GPU) CUDA | |||
| Abstract | X-rays emitted by the Sun can damage electronic devices of spaceships, satellites, positioning systems and electricity distribution grids. Thus, the forecasting of solar X-rays is needed to warn organizations and mitigate undesirable effects. Traditional mining classification methods categorize observations into labels, and we aim to extend this approach to predict future X-ray levels. Therefore, we developed the SeMiner method, which allows the prediction of future events. SeMiner processes X-rays into sequences employing a new algorithm called Series-to-Sequence (SS). It employs a sliding window approach configured by a specialist. Then, the sequences are submitted to a classifier to generate a model that predicts X-ray levels. An optimized version of SS was also developed using parallelization techniques and Graphical Processing Units, in order to speed up the entire forecasting process. The obtained results indicate that SeMiner is well-suited to predict solar X-rays and solar flares within the defined time range. It reached more than 90% of accuracy for a 2-day forecast, and more than 80% of True Positive (TPR) and True Negative (TNR) rates predicting X-ray levels. It also reached an accuracy of 72.7%, with a TPR of 70.9% and TNR of 79.7% when predicting solar flares. Moreover, the optimized version of SS proved to be 4.36 faster than its initial version. | |||
| Area | CEA | |||
| Arrangement | urlib.net > BDMCI > DIDAS > SeMiner: a flexible... | |||
| doc Directory Content | access | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| Language | en | |||
| Target File | discola_seminer.pdf | |||
| User Group | simone | |||
| Reader Group | administrator simone | |||
| Visibility | shown | |||
| Read Permission | deny from all and allow from 150.163 | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Next Higher Units | 8JMKD3MGPCW/3ETR8EH | |||
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.52.30 1 | |||
| Dissemination | WEBSCI | |||
| Host Collection | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 | |||
| 6. Notes | ||||
| Empty Fields | alternatejournal archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository nextedition notes parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey secondarymark session shorttitle sponsor subject tertiarymark tertiarytype url | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||