Information Systems Group

― Knowledge Representation and Reasoning

Yujiao Zhou

Research Student

Biography

I studied on Computer Science in Shanghai Jiao Tong University for my first degree. I am interested in both theoretical and practical aspects in computer science. In my undergraduate years, I participated in ACM-ICPC, which gave me a lot of fun to solve algorithm problems and our team "Lollypop" won the Champion in Asia Kuala Lumpur regional contest in 2008. I joined APEX lab in my sophomore year. At that time, my research focused on Information Retrieval and Machine Learning. After that, I worked at the Database group as a full-time intern advised by Haixun Wang. Our group is part of the Web Search and Data Management Group in Microsoft Research Asia. I spent most of my time on helping to initiate the project Probase.

Currently, I am in the final year to complete my DPhil degree. I have been working on query answering in structured data with background knowledge. I have developed a query answering engine PAGOdA, which is capable of dealing withconjunctive query answering in OWL 2 ontology.

Recent Publications

Pay-as-you-go OWL Query Answering Using a Triple Store
Yujiao Zhou, Yavor Nenov, Bernardo Cuenca Grau and Ian Horrocks
To appear in Proc. of the 28th AAAI Conference on Artificial Intelligence (AAAI 2014)
[ technical report ]

Pay-as-you-go OWL Query Answering Using a Triple Store
Yujiao Zhou, Yavor Nenov, Bernardo Cuenca Grau and Ian Horrocks
To appear in Proc. of the 2014 International Workshop on Description Logic (DL 2014)
[ technical report ]

Complete Query Answering Over Horn Ontologies Using a Triple Store
Yujiao Zhou, Yavor Nenov, Bernardo Cuenca Grau and Ian Horrocks
In Proc. of the 12th International Semantic Web Conference (ISWC 2013)
[ bib | slides | technical report ]

Making the Most of your Triple Store: Query Answering in OWL 2 Using an RL Reasoner
Yujiao Zhou, Bernardo Cuenca Grau, Ian Horrocks, Zhe Wu and Jay Banerjee
In Proc. of the 22nd International World Wide Web Conference (WWW 2013)
[ bib | slides | technical report ]

Efficient Upper Bound Computation of Query Answers in Expressive Description Logics
Yujiao Zhou, Bernardo Cuenca Grau and Ian Horrocks
In Proc. of the 25th International Workshop on Description Logics (DL 2012)

Large scale Interactive Ontology Matching: Algorithms and Implementation
Ernesto Jimenez Ruiz, Bernardo Cuenca Grau, Yujiao Zhou and Ian Horrocks
In Proc. of the 20th European Conference on Artificial Intelligence (ECAI 2012)

Resources

Ontologies, datasets and queries that I have used to test my query answering system can be downloaded here:

Name

Yujiao Zhou

Posts

Research Student

Contact Information

Wolfson Building, Parks Road, Oxford OX1 3QD

News

Professor Ian Horrocks is a new honorary doctorate at University of Oslo, Faculty of Mathematics and Natural Sciences

Professor Ian Horrocks received an honorary doctorate from the University of Oslo.

Best paper award at IJCAI'17

The paper entitled "Foundations of Declarative Data Analysis Using Limit Datalog Programs" and authored by M. Kaminski, B. Cuenca Grau, B. Motik, E. V. Kostylev, and I. Horrocks received the best paper award at the 26th International Joint Conference on Artificial Intelligence (IJCAI'17).

3 papers accepted in IJCAI'17

Three papers co-authored by the KRR group have been accepted in IJCAI'17:
- "Query Reformulation: Theory and Practice" by M. Benedikt, E. V. Kostylev, F. Mogavero, and E. Tsamoura;
- "Foundations of Declarative Data Analysis Using Limit Datalog Programs" by M. Kaminski, B. Cuenca Grau, B. Motik, E. V. Kostylev, and I. Horrocks; and
- "The Bag Semantics of Ontology-Based Data Access" by C. Nikolaou, E. V. Kostylev, G. Konstantinidis, M. Kaminski, B. Cuenca Grau, and I. Horrocks.

Paper accepted in PODS'17

The paper entitled "Benchmarking the chase" authored by Michael Benedikt, George Konstantinidis, Giansalvatore Mecca, Boris Motik, Paolo Papotti, Donatello Santoro, and Efthymia Tsamoura has been accepted in PODS'17.

Andrew Bate defends his PhD Thesis

Andrew Bate has successfully defended his PhD Thesis on Consequence Based Reasoning. Congratulations to Dr. Andrew Bate!

Best applications paper award at ISWC'16

Our paper entitled "Semantic Technologies for Data Analysis in Health Care" received the Best Applications Paper Award at the International Semantic Web Conference (ISWC 2016).

4 papers accepted in ISWC'16

Four papers authored by the KRR group have been accepted in the International Semantic Web Conference (ISWC 2016).

Best paper award at ICDT'16

Mark Kaminski and Egor Kostylev received the best paper award at ICDT 2016 for their paper entitled "Beyond Well-Designed SPARQL".