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Third International Conference on Geospatial Semantics (GeoS 2009)


Third International Conference on Geospatial Semantics (GeoS 2009)


Purpose and Scope

Geospatial semantics is an emerging research theme in the domain of geographic information systems and spatial databases. The previous editions of the conference – GeoS 2005 and GeoS 2007 in late November (Mexico City, Mexico) www.geosco.org were highly successful. We have received about 100 submissions, from which 30 regular and 8 short articles have been published in Volume 3799 and Volume 4853 of the Lecture Notes in Computer Science respectively. People from 28 countries and 5 continents have attended the GeoS conferences.

The third edition GeoS 2009 www.geosco.org aims at providing a forum for the exchange of state-of-the-art research results in the areas of modeling and processing of geospatial semantics. Geospatial semantics play an important role for next-generation spatial databases and geographic information systems, as well as specialized geospatial web services. This conference traditionally brings together researchers whose expertise will address issues such as:

* Theories for geospatial semantic information
* Formal representations of geospatial data
* Models and languages for geoontologies
* Alignment and integration of geoontologies
* Integration of semantics into spatial query processing
* Spatial information retrieval
* Ontology-driven GIS
* Geospatial Semantic Web
* Multicultural aspects of spatial knowledge
* Cognitive aspects of geospatial semantics
* Measuring semantic similarity between spatial datasets
* Representing context for geospatial semantic information
* Semantic Sensor Web
* Ontology-based visualization of geospatial data
* Conceptual models of dynamic geospatial environments
* Personalization of geospatial semantic services

Paper Submissions

Authors are invited to submit full papers of approx. 18 single-spaced pages, in English, formatted in Springer’s Lecture Notes in Computer Science style (www.springer.de/comp/lncs/authors.html). Papers, formatted in PDF, must be submitted through the conference web site (www.geosco.org). At least three members of the Program Committee will evaluate each paper based on scientific significance, relevance to the conference, novelty, relation to previously published literature, and clarity of presentation. The GeoS 2009 proceedings will be published as a volume in Springer’s LNCS series.


* Pascal Hitzler: State of the Art and Vision for the Semantic Web

* 2nd Keynote to be announced


* Building a Web of Sensors; 52°North (Arne Bröring and colleagues)

* OWL 2 Rules; Pascal Hitzler, Markus Krötzsch and Sebastian Rudolph


GeoS 2009 will be held at the Centro de Investigacion en Computacion (CIC) in Mexico City (www.cic.ipn.mx). The conference site has a spectacular view of the Popocatepetl volcano, which will be snow-covered at the beginning of December. Early December is the best time of the year for traveling to Mexico City with typically clear weather, moderate temperatures, and a deep blue sky.

Important Dates

Papers submission: July 31, 2009
Notification of acceptance: September 4, 2009
Submission of camera-ready papers: September 14, 2009
Registration: October 30, 2009 (early birds – October 15, 2009)
Workshops: December 1 and 2, 2009
Conference: December 3 and 4, 2009

General Chair

Sergei Levashkin, Centro de Investigación en Computación, Mexico City, Mexico

Program Co-Chairs

Krzysztof Janowicz, GeoVISTA Center, Department of Geography at Penn State, USA
Martin Raubal, University of California, Santa Barbara, USA

Local Organizing Comitee
PIIG-Lab, Centro de Investigación en Computación, Mexico City, Mexico

Miguel Martinez (chair)
Nahun Montoya
Walter Renteria
Iyeliz Reyes
Gerardo Sarabia
Linaloe Sarmiento
Roberto Zagal

Program Committee

Neeharika Adabala, Microsoft Research, India
Pragya Agarwal, University College London, UK
Ola Ahlqvist, Ohio State University, USA
Naveen Ashish, UC-Irvine, Irvine CA, USA
Ioan Marius Bilasco, FOX-MIIRE team at Laboratoire d’Informatique Fondamentale de Lille (LIFL), France
Stefano Borgo, Laboratory for Applied Ontology, Italy
Brandon Bennett, University of Leeds, UK
Tom Bittner, University at Buffalo, USA
Boyan Brodaric, Geological Survey of Canada, Canada
Gilberto Camara, INPE, Brazil
Isabel F. Cruz, University of Illinois at Chicago, USA
Clodoveu Davis Jr., Universidade Federal de Minas Gerais, Brazil
Andrew U. Frank, Technical University Vienna, Austria
Christian Freksa, University of Bremen, Germany
Mark N. Gahegan, University of Auckland, New Zealand
Cory Andrew Henson, Wright State University, USA
Stephen Hirtle, University of Pittsburg, USA
Pascal Hitzler, University of Karlsruhe, Germany
Jerry Hobbs, ISI, USA
Prateek Jain, Wright State University, USA
Christopher B. Jones, Cardiff University, UK
Marinos Kavouras, National Technical University of Athens, Greece
Carsten Keßler, University of Münster, Germany
Alex Klippel, The Pennsylvania State University, USA
Craig Knoblock, University of Southern California, USA
Margarita Kokla, National Technical University of Athens, Greece
Dave Kolas, BBN Technologies, USA
Werner Kuhn, University of Muenster, Germany
Michael Lutz, Institute for Environment and Sustainability, Italy
Miguel Felix Mata Rivera, Instituto Politecnico Nacional, Mexico
Marco Painho, University of Lisbon, Portugal
Christine Parent, University of Lausanne, Switzerland
Vasily Popovich, Saint Petersburg Institute for Informatics and Automation, RAS, Russia
Sudha Ram, University of Arizona, USA
Andrea Rodriguez, Universidad de Concepcion, Chile
Christoph Schlieder, University of Bamberg, Germany
Angela Schwering, University of Muenster, Germany
Shashi Shekhar, University of Minnesota, USA
Kathleen Stewart Hornsby, University of Iowa, USA
Nancy Wiegand, University of Wisconsin-Madison, USA
Stephan Winter, University of Melbourne, Australia
Michael F. Worboys, University of Maine, USA

SIM-DL Server and Protege plug-in released beta2.3

The new beta versions of the SIM-DL semantic similarity server and the Protege plug-in (for 3.3.x) are available at sourceforge. Please note that this release contains a lot of experimental new features and is unstable (so using beta 2.2 may be a better idea in some cases). The new features (e.g., similarity estimations) are described in the FOIS 2008 paper linked below.

Janowicz, K., Maue, P., Wilkes, M., Braun M., Schade, S., Dupke, S., and Kuhn, W. (2008; forthcoming): Similarity as a Quality Indicator in Ontology Engineering. 5th International Conference on Formal Ontology in Information Systems (FOIS 2008). Saarbruecken, Germany October 31st - November 3rd 2008.

SIM-DL Server and Protege Plug-in released (beta2.1)

We are happy to announce the release of the next beta version (2.1) of our SimCat similarity server and Protege plug-in! The new release contains some major improvements such as an extended context model with several kinds of contexts, caching, lazy unfolding and a more intuitive user guidance for the plug-in.

Algorithm, Implementation and Application of the SIM-DL Similarity Server

Our paper submitted to the Second International Conference on GeoSpatial Semantics (GeoS 2007) has been accepted for publication. I am especially happy about this, because I’ve published my first similarity paper two years ago at the first GeoS conference. Beside the SIM-DL similarity server and Protege plug-in, we will also present our application area, i.e. an improved gazetteer web interface using subsumption and similarity reasoning. gazetteers_small.png

Semantic similarity measurement gained attention as a methodology for ontology-based information retrieval within GIScience over the last years. Several theories explain how to determine the similarity between entities, concepts or spatial scenes, while concrete implementations and applications are still missing. In addition, most existing similarity theories use their own representation language while the majority of geo-ontologies is annotated using the Web Ontology Language (OWL). This paper presents a context and blocking aware semantic similarity theory for the description logic ALCHQ as well as its prototypical implementation within the open source SIM-DL similarity server. An application scenario is introduced showing how the Alexandria Digital Library Gazetteer can benefit from similarity in terms of improved search and annotation capabilities. Directions for further work are discussed.

[120] Janowicz, K., Keßler, C., Schwarz, M., Wilkes, M., Panov, I., Espeter, M. and Bäumer, B. (2007; forthcoming) Algorithm, Implementation and Application of the SIM-DL Similarity Server. Second International Conference on GeoSpatial Semantics (GeoS 2007). Lecture Notes in Computer Science, Springer. Mexico City, Mexico.

see also:
[73] Janowicz, K. (2006). Sim-DL: Towards a Semantic Similarity Measurement Theory for the Description Logic ALCNR in Geographic Information Retrieval. R. Meersman, Z. Tari, P. Herrero et al. (Eds.): SeBGIS 2006, OTM Workshops 2006, LNCS 4278, pp. 1681 – 1692, 2006.

A new version of the SIM-DL similarity server has been released

The first beta version of the SIM-DL similarity server and Protege plug-in is available at sourceforge for download!

SIM-DL server alpha2 released

Today the second alpha version of the SIM-DL similarity server was released. It can be downloaded from the sourceforge repository: SIM-DL. A new version of the Protege SIM-DL plug-in is also available.

Similarity Server Progress

Just a short report on our progress in developing a DIG compliant semantic similarity measurement server for the description logic ALCNQ: The server consists of three parts, the ALCNQ reasoner that checks for ABOX satisfiability (and therefore also subsumption), a DIG server based on the Jetty Web server and finally the similarity module. Up to now we have first running alpha versions of the reasoner and server parts and start to work on the similarity module now (using an extended version of the SIM-DL theory [73]). The software is implemented in java and we plan to release a first public alpha version in May at sourceforge.

[73] Janowicz, K. (2006). Sim-DL: Towards a Semantic Similarity Measurement Theory for the Description Logic ALCNR in Geographic Information Retrieval. R. Meersman, Z. Tari, P. Herrero et al. (Eds.): SeBGIS 2006, OTM Workshops 2006, LNCS 4278, pp. 1681 – 1692, 2006. [PDF] (external link)

SemMF - A Semantic Matching Framework

SemMF is a flexible framework for calculating semantic similarity between objects that are represented as arbitrary RDF graphs. The framework allows taxonomic and non-taxonomic concept matching techniques to be applied to selected object properties. Moreover, new concept matchers are easily integrated into SemMF by implementing a simple interface, thus making it applicable in a wide range of different use case scenarios. ( taken from: http://sites.wiwiss.fu-berlin.de/suhl/radek/semmf/)

A poster from the International Semantic Web Conference (2005) about SemMF is available at sites.wiwiss.fu-berlin.de/suhl/radek/pub/SemMF_ISWC2005.pdf

SimPack - Toolkit

The Department of Informatics at the University of Zurich has developed a similarity measurement toolkit called SimPack. Until now, it supports the following measurement approaches:

  • feature vectors
  • strings or sequences of strings
  • trees and graphs
  • information theory

The project is developed in Java and available (together with the Javadoc API) at: http://www.ifi.unizh.ch/ddis/simpack.html