English | 2021 | ISBN: ‎ 1636392016 , 978-1636392011 | 121 pages | True PDF | 4.13 MB

To do so, it focuses on the paradigmatic cases of two middleware software packages,
and
, which automatically build and run SPARQL-based REST APIs and allow the specification of JSON schema results, respectively.

The authors highlight the underlying principles behind these technologies--query management, declarative languages, new levels of indirection, abstraction layers, and separation of concerns--, explain their practical usage, and describe their penetration in research projects and industry.

The book, therefore, serves a double purpose: to provide a sound and technical description of tools and methods at the disposal of publishers and developers to quickly deploy and consume Web Data APIs on top of Knowledge Graphs; and to propose an extensible and heterogeneous Knowledge Graph access infrastructure that accommodates a growing ecosystem of querying paradigms.



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