Andrius Vaicenavičius

Andrius Vaicenavičius

Doctoral Student

Student, St Anne's College

Themes:

• Data, Knowledge and Action
• Artificial Intelligence and Machine Learning

Interests

I am interested in query answering when there are conflicts in the database. In particular, I work with inconsistency-tolerant semantics in the ontology language of Datalog +/-. Understanding the complexity of existing inconsistency tolerant semantics and developing new more accurate semantics are my main interests. 

In addition to that, I am interested in optimisation problems and their theoretical study. 

Biography

I have obtained BA and MMath degrees in Mathematics at the University of Oxford. My master thesis "A Study of Weighted Clones" was awarded a Gibbs prize as one of the two best Mathematics master thesis at Oxford.

Selected Publications

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• Query Answer Explanations under Existential Rules

  İsmail İlkan Ceylan‚ Thomas Lukasiewicz‚ Enrico Malizia and Andrius Vaicenavicius

  In Giuseppe Amato‚ Valentina Bartalesi‚ Devis Bianchini‚ Claudio Gennaro and Riccardo Torlone, editors, Proceedings of the 30th Italian Symposium on Advanced Database Systems‚ SEBD 2022‚ Tirrenia (PI)‚ Italy‚ June 19−22‚ 2022. Vol. 3194 of CEUR Workshop Proceedings. Pages 481–488. CEUR−WS.org. 2022.

  Details about Query Answer Explanations under Existential Rules | BibTeX data for Query Answer Explanations under Existential Rules | Download (pdf) of Query Answer Explanations under Existential Rules

• Complexity of Inconsistency−Tolerant Query Answering in Datalog+/ under Cardinality−Based Repairs

  Thomas Lukasiewicz‚ Enrico Malizia and Andrius Vaicenavicius

  In Giuseppe Amato‚ Valentina Bartalesi‚ Devis Bianchini‚ Claudio Gennaro and Riccardo Torlone, editors, Proceedings of the 30th Italian Symposium on Advanced Database Systems‚ SEBD 2022‚ Tirrenia (PI)‚ Italy‚ June 19−22‚ 2022. Vol. 3194 of CEUR Workshop Proceedings. Pages 530–537. CEUR−WS.org. 2022.

  Details about Complexity of Inconsistency−Tolerant Query Answering in Datalog+/ under Cardinality−Based Repairs | BibTeX data for Complexity of Inconsistency−Tolerant Query Answering in Datalog+/ under Cardinality−Based Repairs | Download (pdf) of Complexity of Inconsistency−Tolerant Query Answering in Datalog+/ under Cardinality−Based Repairs

• Preferred Explanations for Ontology−Mediated Queries under Existential Rules

  İsmail İlkan Ceylan‚ Thomas Lukasiewicz‚ Enrico Malizia‚ Cristian Molinaro and Andrius Vaicenavičius

  In Kevin Leyton−Brown and Mausam, editors, Proceedings of the 35th AAAI Conference on Artificial Intelligence‚ AAAI 2021‚ Virtual Conference‚ February 2–9‚ 2021. AAAI Press. 2021.

  Details about Preferred Explanations for Ontology−Mediated Queries under Existential Rules | BibTeX data for Preferred Explanations for Ontology−Mediated Queries under Existential Rules | Link to Preferred Explanations for Ontology−Mediated Queries under Existential Rules

Supervisors