D4.4 - LDES-based Web Indexes

This document details the technical execution of the reference architecture proposed in Deliverable 4.1, moving from conceptual design to the deployment of operational pipelines for the Marine Regions, WoRMS, and EurOBIS datasets. By leveraging Linked Data Event Streams (LDES) as a sustainable, low-maintenance primary API , we utilize the RDF-Connect framework and Smart Data Streams (SDS)specifications to continuously ingest and transform these raw streams into optimized, queryable TREE Web Indexes. This implementation validates the project's architectural goals by demonstrating how reusable building blocks—such as LDES connectors and specialized bucketizers—can decouple data publishing from consumption, allowing for the flexible creation of high-performance query interfaces without imposing additional infrastructure costs on data owners.