Situation-Aware Linked heterogeneous Enriched Data

SALTED Open Linked & Enriched Datasets Are Available Here!

The key objective of SALTED is to add value to existing datasets and data-streams by enriching them through the application of the principles of linked-data, semantics and Artificial Intelligence. These datasets and data-streams come from heterogenous data sources such as Internet of Things (IoT) deployments, Open Data Portals and Social Media, and are harmonized towards a standard information model, i.e. NGSI-LD, targeting the so-essential interoperability.

The Data Enrichment Toolchain (DET) architecture designed and developed comprises different microservices that, on the whole, address the challenges presented along the achievement of the main goal of the project. The principal microservices are:
data discovery, i.e., the ability to discover and request the collection of sets and streams of data;
data formatting, i.e., the transformation of raw data into well-formed and structured sets of data accordingly to data models described in terms of NGSI-LD;
data curation, i.e., the identification (and potential correction) of data that do not reflect the expected quality (outliers, errors in values and the like);
data linkage, i.e., the ability to relate different datasets accordingly to a well established definition of relationships;
data enrichment, i.e., the ability to understand and frame the data structures according to situations and contexts and the definition of functions that exploit this contextualization.

SALTED Architecture

SALTED Architecture

The SALTED architecture is based on a Context Broker federated setup and DETs. This architecture implementation highly encourages that every DET injects data into its local Context Broker, which is connected, among others, with the so-called Federator Broker. This setup allows users to make their requests to a single central broker, which is able to forward these queries to the corresponding local brokers that have relevant data for those requests.

The Context Brokers used in this project correspond to the FIWARE Generic Enabler Scorpio context-broker, which guarantees full compatibility with the NGSI-LD API. Furthermore, the data enrichment outcomes are published in the European Data Portal, for which a connector between the SALTED architecture and this platform has been developed.

The main results derived from the project can be divided in three phases: harmonization of existing heterogenous data sources (increasing interoperability), enrichment of the harmonized data (enhancing data quality) and publishing of the enriched data in the European Data Portal (improving discoverability). Thereby, SALTED contributes to the stimulation of data usage and the acceleration of the data economy in Europe.

Latest News in SALTED!

May 5, 2023
D3.1: Report on development of Scorpio Context Broker – CKAN connector

One of the key goals of SALTED is the publication of the NGSI-LD high-value data generated within the project in the European Data Portal (EDP). This document describes the required connectors that interconnect the SALTED architecture to the EDP, by leveraging a Comprehensive Knowledge Archive Network (CKAN) public instance deployed in between.The document details the […]

March 31, 2023
D2.2: Report on data modelling and linking

This document represents the D2.2 deliverable of the data modelling and linking. The focus of this document is the thorough definition of the architecture implementation and deployment, including details about how security is handled. Furthermore, D2.2 includes an update on the data modelling introduced in D1 and D2.1, and a review of the linking modules […]

March 24, 2023
Évry hosts the third General Assembly meeting

Partner Institut Mines-Télécom hosted the third face-to-face General Assembly meeting of the SALTED project on March 22 and 23 in Évry. The whole consortium participated in the meeting, in which technical aspects regarding all of the active Work Packages were thoroughly discussed. Moreover, the applications envisioned for the project were fruitfully analysed in order to […]

February 3, 2023
New contribution on data harmonization: Data Quality

SALTED aims to provide datasets and data-streams enriched with new properties and relationships, facing the need of harmonization of these data. One of the most relevant initiatives pursuing the standardization of data modelling is the Smart Data Models initiative, with more than 800 data models available to use. Within the SALTED project, our partner Universidad […]

January 2, 2023
D1.1: Report on semantic features extraction for heterogeneous datasources contextualization

This document represents the D1.1 deliverable of the semantic features extraction for heterogeneous data sources contextualization. The focus of this document is to give an introduction to different data sources used in SALTED as well as smart data models for converting into the NGSI-LD architecture. Furthermore, D1.1 defines the injection chains of different sources and […]

December 7, 2022
Enabling data spaces: existing developments and challenges

This paper focuses on the concept of data spaces, which can serve as a basis for the future data economy. In data spaces, applicable to various business domains, stakeholders will be able to share data with each other in a controlled way. First, the paper describes the real motivations and needs for enabling data spaces. Second, […]