Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Bellomarini, Luigi"'
Autor:
Bellomarini, Luigi, Catalano, Costanza, Coletta, Andrea, Iezzi, Michela, Samarati, Pierangela
Knowledge Graphs (KGs) have recently gained relevant attention in many application domains, from healthcare to biotechnology, from logistics to finance. Financial organisations, central banks, economic research entities, and national supervision auth
Externí odkaz:
http://arxiv.org/abs/2410.12418
Recent years witnessed a rising interest towards Datalog-based ontological reasoning systems, both in academia and industry. These systems adopt languages, often shared under the collective name of Datalog$+/-$, that extend Datalog with the essential
Externí odkaz:
http://arxiv.org/abs/2311.12236
Autor:
Ceri, Stefano, Bernasconi, Anna, Gagliardi, Alessia, Martinenghi, Davide, Bellomarini, Luigi, Magnanimi, Davide
Publikováno v:
In Companion of the 2024 International Conference on Management of Data (SIGMOD/PODS '24). Association for Computing Machinery, New York, NY, USA, 373-385
Graph databases are emerging as the leading data management technology for storing large knowledge graphs; significant efforts are ongoing to produce new standards (such as the Graph Query Language, GQL), as well as enrich them with properties, types
Externí odkaz:
http://arxiv.org/abs/2307.07354
Autor:
Baldazzi, Teodoro, Bellomarini, Luigi, Ceri, Stefano, Colombo, Andrea, Gentili, Andrea, Sallinger, Emanuel
Large Language Models (LLMs) exploit fine-tuning as a technique to adapt to diverse goals, thanks to task-specific training data. Task specificity should go hand in hand with domain orientation, that is, the specialization of an LLM to accurately add
Externí odkaz:
http://arxiv.org/abs/2306.10723
We provide a framework for probabilistic reasoning in Vadalog-based Knowledge Graphs (KGs), satisfying the requirements of ontological reasoning: full recursion, powerful existential quantification, expression of inductive definitions. Vadalog is a K
Externí odkaz:
http://arxiv.org/abs/2210.00283
Datalog^E is the extension of Datalog with existential quantification. While its high expressive power, underpinned by a simple syntax and the support for full recursion, renders it particularly suitable for modern applications on knowledge graphs, q
Externí odkaz:
http://arxiv.org/abs/2202.06285
In this paper, we investigate finite representations of DatalogMTL models. First, we discuss sufficient conditions for detecting programs that have finite models. Then, we study infinite models that eventually become constant and introduce sufficient
Externí odkaz:
http://arxiv.org/abs/2109.10691
Autor:
Bellomarini, Luigi, Sallinger, Emanuel
Ontological query answering is the problem of answering queries in the presence of schema constraints representing the domain of interest. Datalog+/- is a common family of languages for schema constraints, including tuple-generating dependencies (TGD
Externí odkaz:
http://arxiv.org/abs/2105.11147
Recent years have seen increasing popularity of logic-based reasoning systems, with research and industrial interest as well as many flourishing applications in the area of Knowledge Graphs. Despite that, one can observe a substantial lack of specifi
Externí odkaz:
http://arxiv.org/abs/2103.08588
Autor:
Bellomarini, Luigi, Benedetti, Marco, Gentili, Andrea, Laurendi, Rosario, Magnanimi, Davide, Muci, Antonio, Sallinger, Emanuel
In the COVID-19 outbreak, governments have applied progressive restrictions to production activities, permitting only those that are considered strategic or that provide essential services. This is particularly apparent in countries that have been st
Externí odkaz:
http://arxiv.org/abs/2004.10119