Joint Workshop of the DFG Research Training Groups in Computer Science

The students Juliane Brink, Giorgio De Felice and Jens Ortmann, and the postdocs  Tomi Kauppinen and Falko Schmid represented IRTG during the Joint Workshop of the DFG Research Training Groups in Computer Science held in Dagstuhl on June 18-20, 2012.

Eight german research groups  were represented during the workshop:

The IRTG students presented their research during the second day of the workshop:

Juliane Brink: Adaptive Sensor Movement Planning in Environmental Observations
Jens Ortmann: The Semantic Integration of Human Observation and Technical Sensor Observations
Giorgio De Felice: A Reasoning System to Derive Spatial Information from Mixed Quantitative-qualitative Representations (slides)

Jens Ortmann presenting his topic: The Semantic Integration of Human Observation and Technical Sensor Observations

 

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Journal Article "An Egocentric Reference System for Affordances" Accepted Pending Major Revision for the Semantic Web Journal

I am pleased to let you know that the journal article “An Egocentric Reference System for Affordances by Jens Ortmann, Giorgio De Felice, Dong Wang and Desiree Daniel was accepted for publication pending major revision for the Semantic Web Journal. The Semantic Web Journal offers a highly transparent review and publication process, the originally submitted paper and the reviews are openly available and can be found here.

Abstract: 
This article suggests a theory of egocentric reference systems for human observations of affordances that can be used to semantically account for human observations on the web. Based on the perceptual theory of affordances, which suggests that human perceive the potential actions the environment affords, an egocentric reference frame is established. This egocentric reference frame takes the observing agent as its datum. The theory is completed with transformations that allow to project values of observed affordances from one user’s reference frame into another user’s reference frame. The potency of the theory to account for the semantics of human observations is demonstrated through the implementation of an egocentric reference system for the prototypical affordance of hikability that a mountain path affords to a hiker, using user-ratings from a community driven web portal.

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Representing Vague Places : Determining a Suitable Method

“Representing Vague Places : Determining a Suitable Method” – a paper by Mohammed Imaduddin Humayun and Angela Schwering was accepted for publication and will be presented at the Place-Related Knowledge Acquisition Research (P-KAR) workshop, in conjunction with Spatial Cognition 2012, Kloster Seeon, Germany, August 31th, 2012.

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Intuitive and Natural Interfaces for Geospatial Data Classification

A paper entitled “Intuitive and Natural Interfaces for Geospatial Data Classification” by Falko Schmid, Oliver Kutz, Lutz Frommberger, Till Mossakowski, Tomi Kauppinen and Cunyuan Cai was accepted for publication and will be presented at the Place-Related Knowledge Acquisition Research (P-KAR) Workshop, in conjunction with Spatial Cognition 2012, Kloster Seeon, Germany, August 31th, 2012.

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IRTG at the 2nd International Conference on Web Intelligence, Mining and Semantics (WIMS'12)

Last week, Alejandro Llaves flew to Craiova (Romania) to attend the WIMS’12 conference and to present a paper about his research work:

Llaves, A., Michels, H., Maué, P., & Roth, M. (2012): “Semantic Event Processing in ENVISION”. In Proceedings of the 2nd International Conference on Web Intelligence, Mining and Semantics (WIMS’12). ACM, New York, NY, USA. Link

The slides of the presentation are available here.

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IRTG at Schloss Dagstuhl for the Joint Workshop of DFG graduate schools

Participants of the Joint Workshop of the DFG Research Training Groups in Computer Science at Schloss Dagstuhl

The IRTG Semantic Integration of Geospatial Information participated the Joint Workshop of the DFG Research Training Groups in Computer Science—Part 1: Dataexploration, Visualization, and Software Engineering in Schloss Dagstuhl, Germany during June 18–20, 2012.

The IRTG was presented by postdocs Dr. Tomi Kauppinen and Dr. Falko Schmid and PhD  students Juliane BrinkGiorgio De Felice and Jens Ortmann.

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Paper accepted for publishing at ECAI 2012: Combining DRA and CYC into a Network Friendly Calculus

A paper titled “Combining DRA and CYC into a Network Friendly Calculus” has been accepted for full paper publication at the 20th European Conference on Artificial Intelligence (ECAI 2012).  In the paper the author, Malumbo Chipofya, describes two families of binary qualitative spatial calculi and some ternary calculi defined over them. The motivation was to find a calculus to represent relations among edges in plane embedded networks such as networks of streets. Below is an abstract of the paper:

“Qualitative spatial reasoning is usually performed using spatial calculi specially designed to represent certain aspects of spatial knowledge. However most calculi must be adapted for use in applications where additional constraints are at play. This paper combines the DRA and CYC algebras into a new calculus for reasoning within network structures. In the process we prove some interesting results about some properties of the standard operations, converse and composition, for versions of CYC and DRA.”

ECAI “is the premier forum for presenting Artificial Intelligence results in Europe”. ECAI 2012 will take place in Montpellier, France from 27th to 31st August, 2012.

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Tutorial on Linked Science at EKAW2012

Tutorial on Linked Science 2012 (TOLSCI2012)

When: October 7th, 2012
Where: Galway City, Ireland
Tutorial at the International Conference on Knowledge Engineering and Knowledge Management (EKAW 2012)

Tutorial URI: http://linkedscience.org/events/tolsci2012/

Linked Science is an approach to interconnect scientific assets in order to enable transparent, reproducible and transdisciplinary research. Tutorial on Linked Science 2012 (TOLSCI2012) will be a half day tutorial comprising of different aspects of Linked Science: semantic description of scientific data (e.g. observations and measurements), existing vocabularies, bridging of statistical analysis and Linked Data, and license and copyright issues about data.

Through exercises and the introductory talk the aim of TOLSCI2012 is to stimulate transdisciplinary discussions among researchers and publishers from various backgrounds on semantic integration of scientific information.

The main part of the tutorial will concentrate in a hands-on session in order to learn how to describe, access and analyze scientific data about scientific observations, and especially how to get only that part of data which is of interest for a given research question.

We will teach

  • how Linked Data solves the access part, and
  • how SPARQL allows to query only a subset of the data.

In particular, the participants will learn in a hands-on session

  • how Linked Data can be connected with the help of the SPARQL package for statistical analysis in R, and
  • how and which visualization techniques and tools are available for interacting with the data.

All tutorial materials will be published online.

To register, visit: http://ekaw2012.ekaw.org/Registration.html

Teachers

  • Tomi Kauppinen is a postdoctoral researcher in the Muenster Semantic Interoperability Lab (MUSIL) at the Institute for Geoinformatics at the University of Muenster, Germany. He holds a PhD from the Aalto University, Finland with a thesis on reasoning about change and time. He chaired the First International Workshop on Linked Science 2011 at the International Semantic Web Conference (ISWC2011), the track on Interoperability and Semantics of the Geoinformatik 2011 conference, and led the breakout session for Vocabularies for Science at Science Online London 2011 organized by Nature. His research focuses on spatiotemporal and semantic modeling of processes such as deforestation, extreme weather events, changes in administrational borders, digital cultural heritage, and linked science. His current projects include opening and linking of scientific and educational data in LinkedScience.org-project and in the Linked Open Data University of Muenster (LODUM). He coordinates activities as a post-doc in the International Research Training Group on Semantic Integration of Geospatial Information.
  • Willem Robert van Hage is a researcher in the field of information integration on the web. His main research topics in the past years are geospatio-temporal semantics, ontology alignment, and ontology learning. He is a co-organizer of the Detection, Representation, and Exploitation of Events in the Semantic Web workshop (DeRiVE 2011) and since 2006 he has been a co-organizer of the Ontology Alignment Evaluation Initiative (OAEI), a collaborative benchmarking effort for the evaluation of on- tology alignment techniques. He has led the development of the Simple Event Model (SEM), an ontology for the description of events. In the past years he has worked on the combination of Semantic Web reasoning (RDF(S), OWL) and geospatio-temporal reasoning, developing a spatiotemporal indexing package for the popular SWI-Prolog programming language, which has led to a best paper award at the EKAW 2010 conference, and Semantic Web packages for SPARQL querying and RDF storage for the R statistical programming language. He is the coordinator of the interfaculty Web Science minor at the VU University Amsterdam.
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Dagstuhl Seminar on Cognitive Approach for the Semantic Web

From May 29th to June 1st, the IRTG student Jens Ortmann attended the invitation-only Dagstuhl seminar “Cognitive Approach for the Semantic Web“. The event was coordinated by Krzystof Janowicz from UC Santa Barbara, and organized by Dedre Gentner, Pascal Hitzler, Kai-Uwe Kühnberger and Frank van Harmelen. Together with 33 other participants Jens enjoyed four days of fruitful discussions with highly renowned scientists in Semantic Web Research and Cognitive Science.

Group Picture of the Participants

Group Picture of the Participants

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Congratulations Chipofya Family!

On a lighter note, we are very happy to congratulate Malumbo Chipofya and his wife Deborah on their new addition to the family. Malumbo and his wife Deborah are proud parents of a baby boy named Unandi Chipofya. We wish Malumbo and his family all the best!

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