I am mostly a computer scientist at IEETA, University of Aveiro in the areas of data compression, machine learning, information theory, anthropology and genomics. My deep research interests are in the areas of Ancient DNA and Exobiology. I've been a few years on the private sector. I am a ARPA member of the Super Dimension Fortress (SDF) and a member of the Portuguese Association of Pattern Recognition (APRP). For selected methods, see Methods or Github . For IEETA personal page, see IEETA . For publications, see Pubs or Scholar . For compression challenges, see Challenges. For my Twitter account, see DXPratas.