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We introduce a method for visualizing the temporal intervals output by nfer, a language and tool for event trace comprehension. Visualizing these intervals is challenging because they may be arbitrarily nested in a hierarchy and because multiple intervals with the same identifier may occur concurrently. Our tool, nvis, solves these problems to present the output of nfer in a human interpretable, interactive web interface. We introduce an algorithm to solve the hierarchy and concurrency problem, and present a case study using automatically learned rules from our industrial partner.

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Visualizing Temporal Interval Hierarchies

  • 会议论文

  • 发表日期：

    2025年

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  • Nafiz Sadman,
  • Nastaran Kianersi,
  • Sean Kauffman

摘要

We introduce a method for visualizing the temporal intervals output by nfer, a language and tool for event trace comprehension. Visualizing these intervals is challenging because they may be arbitrarily nested in a hierarchy and because multiple intervals with the same identifier may occur concurrently. Our tool, nvis, solves these problems to present the output of nfer in a human interpretable, interactive web interface. We introduce an algorithm to solve the hierarchy and concurrency problem, and present a case study using automatically learned rules from our industrial partner.