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We present an approach to represent composite values (lists and maps, in particular) as literals in RDF data, and to extend SPARQL with features related to such literals. These extensions include an aggregation function to produce these composite values, functions to operate on these composite values in expressions, and a new operator to unfold such composite values into their individual components. As resources related to the approach, we provide two complete open source implementations, a formal specification, and a comprehensive test suite.

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Datatypes for Lists and Maps in RDF Literals

  • 会议论文

  • 发表日期：

    2025年

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  • Olaf Hartig,
  • Gregory Todd Williams,
  • Michael Schmidt,
  • Ora Lassila,
  • Carlos Manuel Lopez Enriquez,
  • Bryan Thompson

摘要

We present an approach to represent composite values (lists and maps, in particular) as literals in RDF data, and to extend SPARQL with features related to such literals. These extensions include an aggregation function to produce these composite values, functions to operate on these composite values in expressions, and a new operator to unfold such composite values into their individual components. As resources related to the approach, we provide two complete open source implementations, a formal specification, and a comprehensive test suite.