50 documents found
Technical Guide: Implementing SHACL
The adoption of the new DCAT-AP-ES profile aligns Spain with the application profile in Europe (DCAT-AP), facilitating automatic federation between data catalogs defined in RDF (Resource Description Framework).
In this RDF graph environment where flexibility is the norm, the absence of traditional…
- Guides
Design and visualize road accident rates using D3.js
Introduction
Every year there are tens of thousands of accidents in Spain, in which thousands of people are injured of varying degrees, and which occur in very different circumstances, both in terms of the type of road and the type of accident.
Many of the statistics related to these parameters are…
- Data exercises
Public sector data reuser´s decalogue
The "Public Sector Data Re-User´s Decalogue" (2025 edition), offers an updated guide to facilitate the access, reuse and enhancement of public sector information in the current context marked by the data economy, artificial intelligence and new European regulatory frameworks. It maintains its…
- Guides
Conversational Agent on an MCP Server at datos.gob.es
IA agents (such as Google ADK, Langchain and so) are so-called "brains". But these brains without "hands" cannot operate on the real world performing API requests or database queries. These "hands" are the tools.
The challenge is the following: how do you connect brain with hands in an…
- Data exercises
Data Scientist's Decalogue
Data science has become a pillar of evidence-based decision-making in the public and private sectors. In this context, there is a need for a practical and universal guide that transcends technological fads and provides solid and applicable principles. This guide offers a decalogue of good practices…
- Guides
Chatting with Public Data: A Practical Application of Artificial Intelligence
Open data portals are an invaluable source of public information. However, extracting meaningful insights from this data can be challenging for users without advanced technical knowledge.
In this practical exercise, we will explore the development of a web application that democratizes access to…
- Data exercises
Word Embeddings - Practical Exercise on Tag Processing
Open data portals play a fundamental role in accessing and reusing public information. A key aspect in these environments is the tagging of datasets, which facilitates their organization and retrieval.
Word embeddings represent a transformative technology in the field of natural language…
- Data exercises
A practical introductory guide to exploratory data analysis in Python
The following presents a new guide to Exploratory Data Analysis (EDA) implemented in Python, which evolves and complements the version published in R in 2021. This update responds to the needs of an increasingly diverse community in the field of data science.
Exploratory Data Analysis (EDA)…
- Guides
Tourism in Spain: Analyzing National Tourist Flows Using Interactive Visualizations
1. Introduction
Visualizations are graphical representations of data that allow for the simple and effective communication of information linked to them. The possibilities for visualization are very broad, from basic representations such as line graphs, bar charts or relevant metrics, to…
- Data exercises
How to Create an Expert Assistant with Open Data: Building GPT to Answer the Critical Minerals Challenge
1. Introduction
In the information age, artificial intelligence has proven to be an invaluable tool for a variety of applications. One of the most incredible manifestations of this technology is GPT (Generative Pre-trained Transformer), developed by OpenAI. GPT is a natural language model…
- Data exercises
