no code implementations • 14 Jul 2021 • Ricardo Gonçalves, Matthias Knorr, João Leite
Forgetting - or variable elimination - is an operation that allows the removal, from a knowledge base, of middle variables no longer deemed relevant.
no code implementations • 15 Jun 2021 • João Ferreira, Diogo Lavado, Ricardo Gonçalves, Matthias Knorr, Ludwig Krippahl, João Leite
Whereas reasoning over time-annotated data with background knowledge may be challenging, due to the volume and velocity in which such data is being produced, such complex reasoning is necessary in scenarios where agents need to discover potential problems and this cannot be done with simple stream processing techniques.
no code implementations • 15 Jun 2021 • Ricardo Ferreira, Carolina Lopes, Ricardo Gonçalves, Matthias Knorr, Ludwig Krippahl, João Leite
The amount of information produced, whether by newspapers, blogs and social networks, or by monitoring systems, is increasing rapidly.
no code implementations • 29 Jul 2019 • Matti Berthold, Ricardo Gonçalves, Matthias Knorr, João Leite
In this paper, we address this issue by presenting the first concrete operator that satisfies strong persistence - a property that seems to best capture the essence of forgetting in the context of ASP - whenever this is possible, and many other important properties.
no code implementations • 17 Jul 2017 • Ricardo Gonçalves, Matthias Knorr, João Leite, Stefan Woltran
However, it is an open question what to do when we have to forget a set of atoms, but cannot without violating this property.
no code implementations • 12 Sep 2016 • Gerhard Brewka, Stefan Ellmauthaler, Ricardo Gonçalves, Matthias Knorr, João Leite, Jörg Pührer
Managed multi-context systems (mMCSs) allow for the integration of heterogeneous knowledge sources in a modular and very general way.
no code implementations • 20 May 2015 • Ricardo Gonçalves, Matthias Knorr, João Leite
Managed Multi-Context Systems (mMCSs) provide a general framework for integrating knowledge represented in heterogeneous KR formalisms.
no code implementations • 20 May 2015 • Ricardo Gonçalves, Matthias Knorr, João Leite
In this paper, we study the notion of minimal change in eMCSs, and discuss some alternative minimal change criteria.