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XClean in Action

XClean in Action. Melanie Weis , HPI Potsdam, Germany Ioana Manolescu, INRIA Futurs, France CIDR 2007. What is XClean?. XClean is an XML data cleaning system. Types of errors that require data cleaning: Typos Different data formats (e.g., date, abbreviations, language) Missing data

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XClean in Action

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  1. XClean in Action Melanie Weis, HPI Potsdam, Germany Ioana Manolescu, INRIA Futurs, France CIDR 2007 05.11.2006 |

  2. What is XClean? • XClean is an XML data cleaning system. • Types of errors that require data cleaning: • Typos • Different data formats (e.g., date, abbreviations, language) • Missing data • Contradictory data • Duplicates Melanie Weis, Hasso Plattner Institut Potsdam, 18.01.2007

  3. Where do we find Duplicates? False Duplicate Melanie Weis, Hasso Plattner Institut Potsdam, 18.01.2007

  4. How do we get rid of dirty data? • Quick fix (get glasses) • Start over again next year(get new, expensive glasses) • Clear methodology(Clearly defined processing stages that combine) • Possibility to reuse (parts of) a solution No! Yes! Melanie Weis, Hasso Plattner Institut Potsdam, 18.01.2007

  5. Data Cleaning with XClean • XClean/PL • Declarative • Modular • Readable XQuery CleanXMLdata DirtyXMLdata XQuery Processor Set of clearly defined cleaning operators. Melanie Weis, Hasso Plattner Institut Potsdam, 18.01.2007

  6. Come see the demo! • XClean Java plugin • Supports • Writing XClean/PL • Compiling XClean/PL to XQuery • Executing XQuery to obtain clean data Melanie Weis, Hasso Plattner Institut Potsdam, 18.01.2007

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