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Highlights of the 1st Meetup on Question Answering Systems – Leipzig, November 21st

November 24, 2014 - 10:09 am by AliKhalili - No comments »

On November 21st, AKSW group was hosting the 1st meetup on “Question Answering” (QA) systems. In this meeting, researchers from AKSW/University of Leipzig, CITEC/University of Bielefeld, Fraunhofer IAIS/University of BonDERI/National University of Ireland and the University of Passau presented the recent results of their work on QA systems. The following themes were discussed during the meeting:

  • Ontology-driven QA on the Semantic Web. Christina Unger presented Pythia system for ontology-based QA. Slides are available here.
  • Distributed Semantic Models for achieving scalability & consistency on QA. André Freitas presented TREO and EasyESA which employ vector-based approach for semantic approximation.
  • Template-based QA. Jens Lehmann presented TBSL for Template-based Question Answering over RDF Data.
  • Keyword-based QA. Saeedeh Shekarpour presented SINA approach for semantic interpretation of user queries for QA on interlinked data.
  • Hybrid QA over Linked Data. Ricardo Usbeck presented HAWK for hybrid question answering using Linked Data and full-text indizes.
  • Semantic Parsing with Combinatory Categorial Grammars (CCG). Sherzod Hakimov. Slides are available here.
  • QA on statistical Linked Data. Konrad Höffner presented LinkedSpending and RDF Data Cube vocabulary to apply QA on statistical Linked Data.
  • WDAqua (Web Data and Question Answering) project. Christoph Lange presented the WDAqua project which is part of the EU’s Marie Skłodowska-Curie Action Innovative Training Networks. WDAqua focuses on answering different aspects of the question, “how can we answer complex questions with web data?”
  • OKBQA (Open Knowledge Base & Question-Answering). Axel-C. Ngonga Ngomo presented OKBQA which aims to bring cutting edge experts in knowledge base construction and application in order to create an extensive architecture for QA systems which has no restriction on programming languages.
  • Open QA. Edgard Marx presented open source question answering framework that unifies QA approaches from several domain experts.

The meetup decided to meet biannually to fuse efforts. All agreed upon investigating existing architecture for question answering systems to be able to offer a promising, collaborative architecture for future endeavours. Join us next time! For more information contact Ricardo Usbeck.

Ali and Ricardo on behalf of the QA meetup

AKSW at #ISWC2014. Come and join, talk and discuss with us!

October 16, 2014 - 1:00 pm by RicardoUsbeck - No comments »
Hello AKSW Follower!
We are very pleased to announce that nine of our papers were accepted for presentation at ISWC 2014.
In the main track of the conference we will present the following papers:

This year, the Replication, Benchmark, Data and Software Track started and we got accepted twice!

Additionally, four  of our papers will be presented within different workshops:

You can also find us at the posters and demo session where we are goint to present

  • AGDISTIS – Multilingual Disambiguation of Named Entities Using Linked Data, Ricardo Usbeck , Axel-Cyrille Ngonga Ngomo, Wencan Luo and Lars Wesemann
  • Named Entity Recognition using FOX, René Speck and Axel-Cyrille Ngonga Ngomo
  • AMSL – Creating a Linked Data Infrastructure for Managing Electronic Resources in Libraries, Natanael Arndt, Sebastian Nuck, Andreas Nareike, Norman Radtke, Leander Seige and Thomas Riechert.
  • Xodx – A node for the Distributed Semantic Social Network, Natanael Arndt and Sebastian Tramp.

We are especially looking forward to see you at the full-day tutorial:

Come to ISWC at Riva del Garda, talk to us and enjoy the talks. More information on various publications can be found at http://aksw.org/Publications.
Cheers,
Ricardo on behalf of AKSW

AKSW Colloquium “Towards an Open Question Answering Architecture” conference pre-presentation on Monday, August 18 in P702

August 15, 2014 - 12:14 pm by KonradHoeffner - No comments »

Towards an Open Question Answering Architecture

On Monday, August 18 ,13.30, Edgard Marx, will give a pre-presentation of his Semantics’ conference talk about the accepted paper Towards an Open Question Answering Architecture.

About the AKSW Colloquium

This event is part of a series of events about Semantic Web technology. Please see http://wiki.aksw.org/Colloquium for further information about previous and future events. As always, Bachelor and Master students are able to get points for attendance and there is complimentary coffee and cake after the session.

AKSW Colloquium “Knowledge Extraction and Presentation” on Monday, July 28, 3.00 p.m. in Room P702

July 24, 2014 - 10:55 am by KonradHoeffner - No comments »

Knowledge Extraction and Presentation

On Monday, July 28,  in room P702 at 3.00 p.m., Edgard Marx proposes a question answering system. He has a computer science background (BSc. and MSc. in Computer Science/PUC-Rio) and is a member of AKSW (Agile Knowledge Engineering and Semantic Web). Edgard has been engaging in Semantic Web technology research since  2010 and is mainly working on evangelization and developing of conversion and mapping tools.

Abstract

The use of Semantic Web technologies led to an increasing number of structured data published on the Web.
Despite the advances on question answering systems retrieving and presenting the desired information from RDF structured sources is still substantial challenging.
In this talk we will present our proposal and working draft to address this challenges.

About the AKSW Colloquium

This event is part of a series of events about Semantic Web technology. Please see http://wiki.aksw.org/Colloquium for further information about previous and future events. As always, Bachelor and Master students are able to get points for attendance and there is complimentary coffee and cake after the session.

AKSW Colloquium “Combination of Topic Modeling and Semantic Web” on Monday, June 30

June 26, 2014 - 9:12 am by KonradHoeffner - No comments »

Combination of Topic Modeling and Semantic Web

On Monday, June 30, at 3.00 p.m. in room Paulinum 702, Michael Röder will present his yearly PhD progress report “Combination of Topic Modeling and Semantic Web”. The presentation addresses the usage of Topic Modeling in the area of Semantic Web. We will focus a use case in which topic models shall be used to recommend similar RDF datasets for a given dataset.

About the AKSW Colloquium

This event is part of a series of events about Semantic Web technology. Please see http://wiki.aksw.org/Colloquium for further information about previous and future events. As always, Bachelor and Master students are able to get points for attendance and there is complimentary coffee and cake after the session.