Research

How people turn data into knowledge.

My research is in visual analytics: tools that help people explore data, keep track of what they found, and explain it. Lately with graphs and AI agents.

ORCID ↗ Google Scholar ↗

68 citations · h-index 5

Knowledge provenance

Recording and querying how analysts reach their insights. The subject of my PhD.

Graphs

Querying and visualising graph databases, from GraphPolaris to node-link layouts.

Dimensionality reduction

Layouts of high-dimensional data that respect what the user cares about.

AI agents

Language-model agents that help explore data, explain patterns and support scientists.

Publications

Selected, newest first.

2026
GraphPolaris: A System for Query, Analysis, and Visualization of Graph Databases
arXiv preprint
2026
A Theoretical Approach for Structuring and Analysing Knowledge Provenance for Visual Analytics
Computer Graphics Forum
2026
NodeSubstrates: Bridging Node-Link Diagrams with DR-Based Semantic Substrates
Eurographics
2025
SeRViz: a visual analytics system for the analysis of sequential rules, applied to airport ground handling operations
Journal of Visualization
2025
DimenFix: A novel meta-strategy to preserve user-defined data values on dimensionality reduction layouts
Computers & Graphics
2024
ChatKG: Visualizing time-series patterns aided by intelligent agents and a knowledge graph
Computers & Graphics (EuroVis)
2024
Knowledge-Decks: Automatically Generating Presentation Slide Decks Through Provenance of Visualization Applications
Preprint
2023
Artificial Intelligence Agents for Materials Sciences
Journal of Chemical Information and Modeling
2022
From Data to Knowledge Graphs: A Multi-Layered Method to Model User's Visual Analytics Workflow for Analytical Purposes
arXiv preprint
2022
Q4EDA: Textual Information Retrieval Based on User Interactions with Visual Representations of Time Series
Information
2022
ARMatrix: An Interactive Item-to-Rule Matrix for Association Rules Visual Analytics
Electronics
2021
Explainable Patterns: Going from Findings to Insights to Support Data Analytics Democratization
arXiv preprint
2016
GPU-Services: GPU Based Real-Time Processing of 3D Point Clouds Applied to Robotic Systems and Intelligent Vehicles
Communications in Computer and Information Science

Theses

PhD · Dalhousie University · 2024

Modeling, Structuring, Storing, Querying and Appraising the Process of User Knowledge Generation in Visual Analytics

Final year as a guest researcher at TU/e Eindhoven

MSc · Universidade de São Paulo · 2016

Aceleração por GPU de serviços em sistemas robóticos focado no processamento de tempo real de nuvem de pontos 3D

GPU acceleration for robotics: real-time processing of 3D point clouds

Research collaboration, a talk, or applying this to your data?

Get in touch