# About Me

## Dr. Fabio PapacchiniResearch Associate at the University of Liverpool Department of Computer Science, Knowledge Representation Group Currently working on the EPSRC iTract project Room
1.09, Ashton Building, Ashton Street, Liverpool, L69 3BX, UK
E-mail: Fabio.Papacchini@liverpool.ac.uk |

I am a Research Associate at the University of Liverpool since September 2015. My research interests include Knowledge Representation, OBDA, Query Answering, Rewriting, Automated Reasoning, Tableaux Methods, Modal Logics, Description Logics and Model Generation. Before coming to Liverpool I have been an EPSRC Doctoral Prize fellow at The University of Manchester, the same university where I obtained my PhD in January 2015 under the supervision of Dr.-Ing. Renate A. Schmidt. Before that, I obtained my BSc and MSc in Computer Science Engineering at the "Università degli Studi Roma Tre" under the supervision of Prof. Marta Cialdea Mayer.

# Publications

## 2018

**Dichotomies in Ontology-Mediated Querying with the Guarded Fragment.**Together with A. Hernich, C. Lutz and F. Wolter.

*journal version of PODS17 submitted.*Paper

**Horn-Rewritability vs PTime Query Evaluation in Ontology-Mediated Querying.**Together with A. Hernich, C. Lutz and F. Wolter.

*Proceedings of the 27th International Joint Conference on Artificial Intelligence, (IJCAI 2018)*1861-1867, ijcai.org. Full paper doi

**Extending the KSP Prover to More Expressive Modal Logics.**Together with C. Nalon, U. Hustadt and C. Dixon.

*Proceedings of the 25th Automated Reasoning Workshop (ARW 2018)*21-22. Prodeedings

## 2017

**Dichotomies in Ontology-Mediated Querying with the Guarded Fragment. (Best Paper Award)**Together with A. Hernich, C. Lutz and F. Wolter.

*Proceedings of the 36th ACM SIGMOD-SIGACT-SIGAI Symposium on Principles of Database Systems (PODS 2017)*185-199, ACM. Full paper doi

**Horn Rewritability vs PTime Query Evaluation for Description Logic TBoxes.**Together with A. Hernich, C. Lutz and F. Wolter.

*Proceedings of the 30th International Workshop on Description Logics (DL 2017)*CEUR Workshop Proceedings, 1879, CEUR-WS.org . Full paper CEUR-WS link

## 2016

**Rewriting ALC-TBoxes of Depth One via Resolution.**

*Proceedings of the 23th Automated Reasoning Workshop (ARW 2016)*Paper

## 2015

**On the Feasibility of Ontology Debugging via Model Generation.**Together with R. A. Schmidt.

*Proceedings of the DEDUKTIONSTREFFEN 2015*Slides

**Debugging of ALC-Ontologies via Minimal Model Generation.**Together with R. A. Schmidt.

*Proceedings of the 22th Automated Reasoning Workshop (ARW 2015)*Link Slides Poster

**Minimal Model Reasoning for Modal Logic.**

*PhD Thesis.*supervised by Renate A. Schmidt, Link

## 2014

**Terminating Minimal Model Generation Procedures for Propositional Modal Logics.**Together with Renate A. Schmidt. In S. Demri, D. Kapur, C. Weidenbach (eds),

*Automated Reasoning (IJCAR 2014).*Lecture Notes in Artificial Intelligence, Vol. 8562, Springer, 381-395. Link Slides

**Models Minimal Modulo Subset-Simulation for Expressive Propositional Modal Logics.**Together with R. A. Schmidt.

*Proceedings of the Joint Automated Reasoning Workshop and Deduktionstreffen (ARW-DT 2014).*Link Slides

## 2013

**Computing Minimal Models Modulo Subset-Simulation for Propositional Modal Logics.**Together with R. A. Schmidt. In Fontaine, P. and Ringeissen, C. and Schmidt, R. A. (eds),

*Proceedings of the 9th International Symposium on Frontiers of Combining Systems (FroCoS 2013)*, Lecture Notes in Artificial Intelligence, Vol. 8152, Springer, 279-294. Link Slides

**Minimal Models Modulo Subset-Simulation for Modal Logics.**Together with R. A. Schmidt.

*Proceedings of the 20th Automated Reasoning Workshop (ARW 2013)*Link Slides Poster

## 2012

**Proceedings of the 19th Automated Reasoning Workshop.**Together with R. A. Schmidt (eds). Escholar

**uk-ac-man-scw:161817**, The University of Manchester, UK. Link

**Subset-Simulation as Model Minimality Criterion.**Together with R. A. Schmidt.

*Short paper for Advances in Modal Logic 2012 (AiML 2012)*Link Slides

**Minimal Models for Modal Logics.**Together with R. A. Schmidt.

*Proceedings of the 19th Automated Reasoning Workshop (ARW 2012)*Link Slides Poster

## 2011

**A Tableau Calculus for Minimal Modal Model Generation.**Together with R. A. Schmidt.

*Electronic Notes in Theoretical Computer Science*

**278**(3), 159-172. Link Long version Slides

**A Modal Tableau Approach for Minimal Model Generation.**Together with R. A. Schmidt.

*Proceedings of the 18th Automated Reasoning Workshop (ARW 2011)*Link Slides Poster

# Academic Responsibilities

## 2017/2018

I have contributed to the preparation of the course “Introduction to Artificial Intelligence” at the University of Liverpool. My contributions include: designing of tutorials, slides, class tests and exam questions. I have also been a demonstrator for the course.## 2016/2017

I have designed and ran a Protégé tutorial for the course “Ontology Languages” at the University of Liverpool.I have been a demonstrator for the course “Logic in Computer Science” at the University of Liverpool.

I have given a guest lecture for the course “Research Methods in Computer Science” at the University of Liverpool.

## 2014/2015

I was a teaching assistant for the course Automated Reasoning and Verification during the academic year 2014/2015 at The University of Manchester.## 2010 - 2013

I was supervising and teaching in labs (example classes), marking assessed coursework for the course of Algorithms and Imperative Programming from 2010 to 2013 at The University of Manchester.# Public Engagement

I, together with Francis Southern, organised and ran a workshop on Logic and Computing as part of the Discovery Computer Science event at The University of Manchester on 3 December 2014. SlidesI revisited, organised and ran a workshop on Logic and Computing as part of the Discovery Computer Science event at The University of Manchester on 15 July 2015. Slides

I revisited, organised and ran a workshop on Logic and Computing as part of the Discovery Computer Science event at The University of Manchester on 8 March 2016. Slides, Handout, Truth tables