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시간적 계층을 이용한 교통사고 발생건수 예측

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dc.contributor.authorJun, Gwanyoung-
dc.contributor.authorSeong, Byeongchan-
dc.date.available2019-03-08T05:35:56Z-
dc.date.issued2018-04-
dc.identifier.issn1225-066X-
dc.identifier.issn2383-5818-
dc.identifier.urihttps://scholarworks.bwise.kr/cau/handle/2019.sw.cau/2307-
dc.description.abstract본 논문에서는 시간적 계층 개념을 활용하여 시계열 자료를 예측하는 방법을 소개한다. 횡단적 계층 자료 분석에서와 유사한 방법으로 중복되지 않는 시간적 계층을 시계열 자료에 구조화할 수 있다. 이러한 시간적 계층을 활용하여 조정된 예측은 기존의 계층별 독립적 기저 예측 및 상향식 예측보다 더 정확하고 강건한 예측값을 생성한다. 실증 분석으로서 국내 교통사고 발생건수를 시간적 계층 개념을 활용하여 예측한다. 분석 결과, 조정 예측이 기존의 다른 예측보다 예측 성능면에서 더 우수함을 확인할 수 있다.-
dc.description.abstractThis paper introduces how to adopt the concept of temporal hierarchies to forecast time series data. Similarly as in hierarchical cross-sectional data, temporal hierarchies can be constructed for any time series data by means of non-overlapping temporal aggregation. Reconciliation forecasts with temporal hierarchies result in more accurate and robust forecasts when compared with the independent base and bottom-up forecasts. As an empirical example, we forecast traffic accident counts with temporal hierarchies and observe that reconciliation forecasts are superior to the base and bottom-up forecasts in terms of forecast accuracy.-
dc.format.extent11-
dc.language한국어-
dc.language.isoKOR-
dc.publisherKOREAN STATISTICAL SOC-
dc.title시간적 계층을 이용한 교통사고 발생건수 예측-
dc.title.alternativeTemporal hierarchical forecasting with an application to traffic accident counts-
dc.typeArticle-
dc.identifier.doi10.5351/KJAS.2018.31.2.229-
dc.identifier.bibliographicCitationKOREAN JOURNAL OF APPLIED STATISTICS, v.31, no.2, pp 229 - 239-
dc.identifier.kciidART002343791-
dc.description.isOpenAccessN-
dc.identifier.wosid000437665800005-
dc.citation.endPage239-
dc.citation.number2-
dc.citation.startPage229-
dc.citation.titleKOREAN JOURNAL OF APPLIED STATISTICS-
dc.citation.volume31-
dc.type.docTypeArticle-
dc.publisher.location대한민국-
dc.subject.keywordAuthortemporal hierarchies-
dc.subject.keywordAuthorreconciliation forecast-
dc.subject.keywordAuthorweighted least square estimator-
dc.subject.keywordAuthorARIMA model-
dc.subject.keywordAuthorexponential smoothing method-
dc.relation.journalResearchAreaMathematics-
dc.relation.journalWebOfScienceCategoryStatistics & Probability-
dc.description.journalRegisteredClassesci-
dc.description.journalRegisteredClasskci-
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