JSON-LD Representations of CityJSON

Abstract

CityJSON is a JSON encoding for 3D city models that provides a lightweight, easy-to-read, and developer-friendly substitute for the traditional CityGML format. However, the increasing demand for semantic interoperability and linked data necessitates using JSON-LD because it allows the incremental addition of semantics to existing JSON documents. This thesis focuses on using JSON-LD to represent CityJSON data to bridge the gap between city model data and Web 3.0 (Semantic Web). We take a closer look at how to convert the CityJSON format into a more semantically rich format and convert the implicitness of CityJSON into a more explicit format that allows for easily sharing and querying data across multiple and different systems. We will also highlight the changes JSON-LD could bring to managing urban data by creating a more connected and semantically interoperable approach to modeling cities.