キーワード抽出法KeyGraphの転用による地震履歴データからの要注意活断層発見支援(発見科学)

書誌事項

タイトル別名
  • Aiding Discovery of Risky Faults by Indexing Earthquake History with KeyGraph(Discovery Science)
  • キーワード抽出法KeyGraphの転用による地震履歴データからの要注意活断層発見支援
  • キーワード チュウシュツホウ KeyGraph ノ テンヨウ ニ ヨル ジシン リレキ データ カラ ノ ヨウ チュウイカツダンソウ ハッケン シエン

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説明

<p>KeyGraph, an automatic document indexing method for extracting keywords expressing the assertions of a document, i. e. assertions supported by the outlines based on the basic concepts of the document, is applied to detecting risky active faults from earthquake history data. Here a history data is regarded as a document to be indexed, and active faults stressed strongly i. e. with near-future earthquake risks are obtained as keywords asserted in the document. This paper presents this method and its seismologic semantics. The semantics shows that KeyGraph is a model of earthquake occurrences, which considers less details of local land crust activities than in seismology, but more of global interactions among active faults. Experimentally, faults with near-future earthquake risks were obtained with high accuracies, and the shifts of risky areas after big earthquakes datected by KeyGraph corresponded with realistic tectonics.</p>

収録刊行物

  • 人工知能

    人工知能 15 (4), 665-672, 2000-07-01

    一般社団法人 人工知能学会

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