Jusletter IT

Automated Extraction of Semantic Information from German Legal Documents

  • Autoren/Autorinnen: Bernhard Waltl / Jörg Landthaler / Elena Scepankova / Florian Matthes / Thomas Geiger / Christoph Stocker / Christian Schneider
  • Kategorie: Beiträge
  • Region: Deutschland
  • Rechtsgebiete: Recht und Sprache
  • Sammlung: Tagungsband IRIS 2017, Top 10 – Peer Reviewed Jury LexisNexis Best Paper Award des IRIS2017
  • Zitiervorschlag: Bernhard Waltl / Jörg Landthaler / Elena Scepankova / Florian Matthes / Thomas Geiger / Christoph Stocker / Christian Schneider, Automated Extraction of Semantic Information from German Legal Documents, in: Jusletter IT 23. Februar 2017
Based on a collaborative data science environment, and a large document corpus (> 130'000 documents from German tax law) we demonstrate the extraction of semantic information. This paper shows the potential of rule-based text analysis to automatically extract semantic information, such as the year of dispute in cases. Additionally, it demonstrates the extraction of legal definitions in laws and the usage of terms in a defining context. Based on an iterative and interdisciplinary process, legal experts, software engineers, and data scientists evaluate and continuously refine the model used for the computer-supported extraction.

Inhaltsverzeichnis

  • 1. Introduction
  • 2. Related work
  • 3. Research Method
  • 3.1. Data Science Environment
  • 3.2. Legal Document Corpus
  • 4. Structuring Unstructured Information in the German Tax Law
  • 4.1. Rule-based text annotation as an interdisciplinary task
  • 4.2. Extracting (meta-)data from legal documents
  • 4.2.1. Approach
  • 4.2.2. Evaluation
  • 4.2.3. Critical reflection
  • 4.3. Determining legal definitions and defining contexts
  • 4.3.1. Approach
  • 4.3.2. Critical reflection
  • 5. Conclusion and Outlook
  • 6. References

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