Web Data APIs for Knowledge Graphs - Meroño-Peñuela, Albert

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Résumé :
This book describes a set of methods, architectures, and tools to extend the data pipeline at the disposal of developers when they need to publish and consume data from Knowledge Graphs (graph-structured knowledge bases that describe the entities and relations within a domain in a semantically meaningful way) using SPARQL, Web APIs, and JSON. To do so, it focuses on the paradigmatic cases of two middleware software packages, grlc and SPARQL Transformer, 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 ofpublishers 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.

Biographie:
Albert Mero?o-Pe?uela is a Lecturer (Assistant Professor) in Computer Science and Knowledge Engineering in the Department of Informatics of King's College London (United Kingdom). He obtained his Ph.D. at the Vrije Universiteit Amsterdam in 2016, under the supervision of Frank van Harmelen, Stefan Schlobach, and Andrea Scharnhorst. His research focuses on Knowledge Graphs, Web Querying, and Cultural AI. Albert has participated in large Knowledge Graph infrastructure projects in Europe, such as CLARIAH, DARIAH, and Polifonia H2020, and has published research in ISWC, ESWC, the Semantic Web Journal, and the Journal of Web Semantics. He is, together with Rinke Hoekstra, the original author of grlc, and together with Carlos Mart?nez-Ortiz, its main current maintainer.