Academic degrees

PhD (2014), MSc (2009) and BSc (2007), all in Computer Science and Engineering, from the Instituto Superior Técnico (IST), the engineering school of the University of Lisbon, Portugal.

Research

I am a postdoctoral researcher with Francisco C. Santos and Ana Paiva at INESC-ID Lisboa's GAIPS group. Previously, I was a PhD student with Andreas Wichert at the same institute.

My research is presently funded by a research stimulus (FCT Incentivo) grant, awarded by the Portuguese Fundação para a Ciência e Tecnologia (contract Incentivo/EEI/LA0021/2014).

Publications

Journal articles
Diogo Rendeiro, João Sacramento, Andreas Wichert (2014). Taxonomical associative memory.
Cognitive Computation, vol. 6, no. 1, pp. 45-65, doi:10.1007/s12559-012-9198-4.
João Sacramento and Andreas Wichert (2012). Binary Willshaw learning yields high synaptic capacity for long-term familiarity memory.
Biological Cybernetics, vol. 106, no. 2, pp. 123-133, doi:10.1007/s00422-012-0488-4.
Preprint available in pdf and ps.gz.
João Sacramento, Francisco Burnay, Andreas Wichert (2012). Regarding the temporal requirements of a hierarchical Willshaw network.
Neural Networks, vol. 25, pp. 84-93, doi:10.1016/j.neunet.2011.07.005.
Preprint available in pdf and ps.gz.
João Sacramento and Andreas Wichert (2011). Tree-like hierarchical associative memory structures.
Neural Networks, vol. 24, no. 2, pp. 143-147, doi:10.1016/j.neunet.2010.09.012.
Preprint available in pdf and ps.gz.
Poster presentations
João Sacramento, Andreas Wichert, Mark CW van Rossum (2014). Imbalanced synaptic plasticity rules lead to energy efficient connectivity.
Neuroscience 2014, SfN's 44th annual meeting, Washington DC, USA.

Talks and public seminars

Efficient storage and retrieval of memories in neural networks (December 2014).
Public PhD thesis defense, Instituto Superior Técnico, Lisbon, Portugal.
Learning with imbalanced plasticity and the information vs. efficiency dilemma (November 2013).
Invited talk, Institute for Adaptive and Neural Computation, School of Informatics, University of Edinburgh, UK.
Synaptic capacities for recognition memory (April 2012).
Invited talk, Institute for Adaptive and Neural Computation, School of Informatics, University of Edinburgh, UK.

Supervised theses

Diogo Rendeiro (2011). Taxonomic associative memory.
MSc thesis, Department of Computer Science and Engineering, Technical University of Lisbon.
Jointly supervised with Andreas Wichert.

Teaching

I also regularly serve as a teaching assistant at the Department of Computer Science and Engineering of IST, where I have been lecturing practical classes on computer programming and basic algorithms.