LeoLOD » alawrynowicz

Co-organizing OWLED 2015 and attending ISWC2015

alawrynowicz — Sat, 24 Oct 2015 14:14:13 +0000

LeoLOD team members, Agnieszka Ławrynowicz and Jędrzej Potoniec, as well as a project’s collaborator Raul Palma (Poznan Supercomputing and Networking Center) were participating last week in the 14th International Semantic Web Conference ISWC’2015, and associated workshops, taking place in Bethlehem, PA (USA) in October 11-15, 2015.

Agnieszka Ławrynowicz presented a joint work with Ilona Ławniczak (a Master Student, LeoLOD team member) at the Workshop on Ontology and Semantic Web Patterns – WOP2015. Slides from the presentation are available from slideshare.

Agnieszka Ławrynowicz and Raul Palma were also attending co-located 12th OWL: Experiences and Directions Workshop (OWLED2015).

OWLED2015 was co-organized by Agnieszka as an Ontology Track chair together with Valentina Tamma (University of Liverpool), Mauro Dragoni (Fondazione Bruno Kessler), and a Protégé team member Rafael Gonçalves (Stanford University).
Agnieszka also moderated a panel on „OWL & industry” featuring Mike Bennett (Hypercube), Peter Haase (metaphacts), Dave McComb (Semantic Arts) and Jodi Wachs (Cerner) as panelists.

Both events were very successful, featuring a mix of great invited talks, paper presentations and lively discussions.

Agnieszka Ławrynowicz presenting a joint work with Ilona Ławniczak (a Master Student, LeoLOD team member) at the Workshop on Ontology and Semantic Web Patterns – WOP2015 organized within ISWC2015

Jędrzej Potoniec together with Fariz Darari and Mehdi Terdjimi (colleagues from the team at SSSW2015 summer school, reunited at ISWC2015)

The two OWLED2015 invited speakers, Bijan Parsia and Prof. James Hendler, discussing during OWLED2015.

The rise of ML-Schema

alawrynowicz — Thu, 15 Oct 2015 13:57:15 +0000

Efforts in previous research of the LeoLOD team members on representation of data mining algorithms, workflows and experiments as well as the research done in LeoLOD on extending DMOP ontology and re-use of a provenance vocabulary may now have a better impact.
Together with Joaquin Vanschoren (Eindhoven University of Technology), Pance Panov (Jozef Stefan Institute), and Diego Esteves (AKSW group, University of Leipzig) as co-chairs, as well as other colleagues, among them Larisa Soldatova (Brunel University), and Tommasu Soru (AKSW group, University of Leipzig) Agnieszka Ławrynowicz established a new W3C Machine Learning Schema Community Group.

The group represents a collaborative, community effort with a mission to develop, maintain, and promote standard schemas for data mining and machine learning algorithms, datasets, and experiments.
The target is a community agreed schema as a basis for ontology development projects, markup languages and data exchange standards; and an extension model for the schema in the area of data mining and machine learning.

Two summer schools: SSSW2015 and ICCL2015

alawrynowicz — Wed, 30 Sep 2015 07:29:02 +0000

During the summer period, PhD students taking part in LeoLOD, Jędrzej Potoniec and Ewa Kowalczuk were participating in two summer schools on semantic technologies: SSSW 2015, the 11th Summer School on Ontology Engineering and the Semantic Web that was taking place on 5 – 11 July, 2015 in Bertinoro, near Bologna (Italy) and ICCL Summer School ‘Reasoning’, taking place in September 13 – 26, 2015 in Dresden, Germany.

Attending RuleML2015

alawrynowicz — Sat, 15 Aug 2015 07:17:08 +0000

Agnieszka Ławrynowicz attended the 9th International Web Rule Symposium (RuleML 2015) and 7th Workshop on Formal Ontologies meet Industry (FOMI2015) that were taking place on 2-5 August 2015 at the Freie Universität Berlin.

The paper co-authored with Mikołaj Morzy and Mateusz Zozuliński entitled “Using Substitutive Itemset Mining Framework for Finding Synonymous Properties in Linked Data” is available from Springer and the presentation is available from SlideShare.

Agnieszka Ławrynowicz giving a talk at RuleML2015

Slides from the invited talk at the Silesian University of Technology

alawrynowicz — Fri, 10 Jul 2015 09:18:01 +0000

The slides from a talk on „Semantic Meta-Mining of Knowledge Discovery Processes” Agnieszka Ławrynowicz was giving at the seminar of ADAA group at the Silesian University of Technology in Gliwice are made available at slideshare

The presentation included a description of the pattern mining algorithm Fr-ONT-Qu and DMOP ontology.

The idea of the seminar arised during the meeting of the Polish Special Interest Group on Machine Learning (Polish-SIGML) in April 2015.

Many thanks for the warm welcome.

Visiting Protégé team at Stanford

alawrynowicz — Sat, 07 Feb 2015 14:11:07 +0000

This week Agnieszka Ławrynowicz and Jędrzej Potoniec have been visiting the Protégé team at the Stanford Center for Biomedical Research (BMIR) (Stanford University). Agnieszka Ławrynowicz gave a talk entitled “Pattern discovery in semantic data mining” at the Protégé Research Meeting. The talk described Fr-ONT-Qu algorithm for mining patterns from Semantic Web data, and discussed its application in two use cases including our ongoing work on re-using Fr-ONT-Qu inside a LeoLOD Protégé plugin.

We thank a lot for the warm welcome, especially we thank Tania Tudorache for being a great host.

Paper accepted to EKAW’2014 PhD Symposium

alawrynowicz — Mon, 15 Sep 2014 08:11:28 +0000

The paper entitled “Towards Ontology Refinement by Combination of Machine Learning and Attribute Exploration” by Jedrzej Potoniec has been accepted to the PhD Symposium of EKAW 2014.

New team members welcome

alawrynowicz — Wed, 03 Sep 2014 14:35:40 +0000

From September three new project members are joining LeoLOD:

Piotr Jakubowski (Master Student, awarded stipend from FNP)
Michał Robaczyk (Master Student, awarded stipend from FNP)
Ilona Ławniczak (Master Student, student developer)

Welcome!

Poster accepted to ISWC2014

alawrynowicz — Sat, 16 Aug 2014 19:25:40 +0000

Our poster “Towards Combining Machine Learning with Attribute Exploration for Ontology Refinement” co-authored by Jędrzej Potoniec, Sebastian Rudolph, and Agnieszka Ławrynowicz has been accepted to ISWC’2014 Poster and Demo session.

Visit of Sebastian Rudolph

alawrynowicz — Mon, 26 May 2014 14:12:16 +0000

Last week we were happy to host prof. Sebastian Rudolph from the Technische Universität Dresden. Together with Sebastian, Jędrek Potoniec and myself we have started a cooperation in the area of knowledge base completion with Formal Concept Analysis (we investigated some new ideas related to the use of machine learning in FCA).
Sebastian also gave a very interesting talk entitled “Advocatus Diaboli – A Playful Way of Enriching Ontologies with Negative Constraints” at the seminar of the Institute of Computing Science on enriching ontologies with negative constraints with a methodology where a domain expert navigates through the space of satisfiable class expressions with the aim of finding absurd ones. These ones can then be eliminated by adding a relevant constraint to the ontology.