His research interests includes algorithms and data structures, information retrieval, web search and data mining, and data science and visualization.

He is actively involved as expert in many initiatives, committees or advisory boards related to Responsible AI all around the world: Global AI Ethics Consortium, Global Partnership on AI, IADB's fAIr LAC Initiative (Latin America and the Caribbean), Spain's Council of AI, and ACM's US Technology Policy Committee. He is also a co-founder of OptIA in Chile, a NGO devoted to algorithmic transparency and inclusion, and member of the editorial committee of the new AI and Ethics Journal where he co-authored an article highlighting the importance of research freedom on AI ethics.