Title: Population der Daten im Schema der extrahierten Webtabelle (German Edition)
Publisher: Verlag Unser Wissen
Publication Date: 2024
Language: German
ISBN 10: 6207667549
ISBN 13: 9786207667543
Binding: Soft cover
Condition: New

About this title

Synopsis

Tabellarische Daten sind eine bestehende Informationsquelle im Internet. Wir haben mit der Sammlung von HTML-Tabellen aus dem Internet begonnen. Zun�chst werden Tabellen guter Qualit�t identifiziert, dann wird ein Schema-Matching durchgef�hrt. Beim Schema-Matching wird die Anzahl der �bereinstimmungen ermittelt, die die �hnlichen Elemente aus zwei verschiedenen Schemata bestimmen. Die Spalten und Datenwerte werden nacheinander verglichen, um das Schema abzugleichen. Bei der Suche nach tabellarischen Daten im Web kann die Suchmaschine eine URL anstelle von tabellarischen Daten zur�ckgeben, was das Hauptproblem ist. Wir arbeiten also an diesem Problem, indem wir Daten von tabellarischen Webseiten extrahieren und ihr Schema extrahieren und dann einen Schemaabgleich durchf�hren, indem wir die Korrespondenz �hnlicher Elemente durch korpusbasierte Technik identifizieren. Nach dem Schemaabgleich f�llten wir die Daten der HTML-Seiten auf, indem wir verwandte Tabellen in einer HTML-Tabelle zusammenf�gten, die f�r die Benutzer besser geeignet und hilfreich ist.

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