Tag Archives: Big Data

Tutorial on Visual Analytics at ESWC2015

We are happy to announce that we will arrange the Tutorial on Visual Analytics with Linked Open Data and Social Media (VisLOD2015) at ESWC2015 in Portoroz, Slovenia on May 31 or June 1, 2015.

In the tutorial we will focus on mining and visualizing of interesting spatial, temporal and thematic patterns from Linked Open Data and Social Media.

The teachers of the tutorial are Dr.  Suvodeep Mazumdar (Uni Sheffield), Dr  Tomi Kauppinen (Aalto Uni) and Dr.   Anna Lisa Gentile (Uni Sheffield).

[more information on ViSLOD2015…]

Announcement: program of Geographic Information Observatories 2014, Vienna

We are happy to announce the program of the Workshop on Geographic Information Observatories 2014 to be organized at GIScience 2014 on September 23rd, 2014 in Vienna:

  • 08:30 – 09:00    Registration / Welcome to GIO2014
  • 09:00 – 09:15    Intro
  • 09:15 – 10:00    Keynote I: (Chair: Ben Adams)
    • Brent Hecht.The Mining and Application of Diverse Cultural Perspectives in Volunteered Geographic Information and User-Generated Content
  • 10:00 – 10:30    Coffee break
  • 10:30 – 11:15   Paper session I (10+5min per speaker) (Chair: Grant McKenzie)
    • Andrea Ballatore. Exploring the geographic information universe: The role of search technologies
    • Benjamin Adams, Mark Gahegan, Prashant Gupta and Richard Hosking. Geographic Information Observatories for Supporting Science
    • André Bruggmann and Sara Irina Fabrikant. Spatializing a Digital Text Archive about History
  • 11:15 – 12:30    Observatory Demos and Panel (Chair: Krzysztof Janowicz)
  • 12:30 – 13:30    Lunch
  • 13:30 – 14:15    Keynote II: (Chair: Krzysztof Janowicz)
    • Sven Schade.‘Post-Normal’ Geospatial Science
  • 14:15 – 15:00    Paper session II (10+5min per speaker) (Chair: Tomi Kauppinen)
    • Auriol Degbelo and Werner Kuhn. Five General Properties of Resolution
    • Heidelinde Hobel and Andrew U. Frank. Exploiting Linked Spatial Data and Granularity Transformations
    • Bandana Kar and Rina Ghose. Is My Information Private? Geo-Privacy in the World of Social Media
  • 15:00 – 15:30    Discussion about kinds of GIO (incl. infrastructure, community involvement, funding) (Chair: Ben Adams)
  • 15:30 – 16:00    Coffee break
  • 16:00 – 17:00    Break out groups on GIO research agenda (Chair: Tomi Kauppinen)
  • 17:00 – 17:30    Wrap-up of the results of the groups / joint writing  (Chair: Grant McKenzie)
  • 18:00 – 20:00    All-Workshop Icebreaker

Registration for the workshop and the conference is now open at the GIScience2014 web site (early bird until August 11th, 2014).

The workshop on Geographic Information Observatories 2014 is organized by Krzysztof Janowicz (University of California, Santa Barbara, USA), Ben Adams (University of Auckland, NZ), Grant McKenzie (University of California, Santa Barbara, USA) and
Tomi Kauppinen (University of Bremen, Germany and Aalto University School of Science, Finland)

We arrange a tutorial on Visual Analytics with LOD and Social Media on May 26, 2014 in Greece

Our VisLOD tutorial is arranged on May 26, 2014 in Anissaras (Crete, Greece) at ESWC2014 conference. The idea is to bring together researchers and practitioners interested in visual and interactive techniques for exploring Linked Open Data and Social Media for e-Governance. Our hands-on tutorial will cover technical aspects from two perspectives:

  1. Social Media analysis and
  2. Visualisation of Social Media and Linked Data.

The teachers of the VisLOD tutorial are Dr. Vitaveska Lanfranchi and Mr. Suvodeep Mazumdar from the University of Sheffield (UK) and Dr. Tomi Kauppinen from the Aalto University (Finland).

[Read more…]

Tutorial on Analyzing and Visualizing Linked Data with R at ESWC2013

Tutorial on Analyzing and Visualizing Linked Data with R 2013 (LODR2013)

When: May 26 or May 27, 2013
Where: Montpellier, France
Duration: half-day
Collocated with the Extended Semantic Web Conference (ESWC2013)—Semantics and Big Data

The openly available R package SPARQL allows to directly connect to Linked Data and use the SPARQL querying language for selecting interesting part of data for analysis. Thus it enables to meet massive and rich data sets with the analytical power of the R language and environment.

This approach and tools contribute to Linked Science and Open Science movements to support the transparency of science and to conduct transdisciplinary research.

In this tutorial we will introduce the idea and concepts about Linked Science, and show via illustrative examples about how to practically query and analyze Linked Data from within R environment for visual and statistical analysis. Tutorial materials will be published online.

Teachers of the tutorial are

Nine Papers Accepted for the Linked Science 2012

We are pleased to announce that we accepted the following papers for publication and presentation at the 2nd International Workshop on Linked Science 2012—Tackling Big Data (LISC2012):

The selection process was competitive with the acceptance rate of 47%: we received 19 submissions and accepted these 9 papers.

The 2nd International Workshop on Linked Science 2012—Tackling Big Data (LISC2012) will be held within the 11th International Semantic Web Conference (ISWC2012) in Boston, USA on November 12th, 2012.

The more detailed workshop programme will be announced in September at the workshop web pages at LinkedScience.org/events/lisc2012/ and via twitter hashtag  #LISC2012 and twitter feed @LinkedScience.

 

2nd International Workshop on Linked Science 2012—Tackling Big Data will be arranged in Boston, USA

The 2nd International Workshop on Linked Science 2012—Tackling Big Data (LISC2012) will be organized in November, 2012 in Boston, USA.

LISC2012 will be collocated with the 11th International Semantic Web Conference (ISWC2012). The submission deadline for the papers is July 31th, 2012.

Organizers of LISC2012 are

  • Tomi Kauppinen, Institute for Geoinformatics, University of Muenster, Germany. (co-chair)
  • Line C. Pouchard, Scientific Data Group, Oak Ridge National Laboratory, US Department of Energy, USA. (co-chair)
  • Carsten Keßler, Institute for Geoinformatics (ifgi), University of Muenster, Germany. (co-chair)
  • Paul Groth, VU University of Amsterdam, the Netherlands.
  • Natasha Noy, Stanford Medical Informatics, USA
  • Eric G. Stephan, U.S. Department of Energy, Pacific Northwest National Laboratory in Richland, Washington, USA
  • Jun Zhao, Life Science Interface, University of Oxford

More information is now available at the web page of the LISC2012 at LinkedScience.org/events/lisc2012.

You may also follow the twitter feed @LinkedScience and hashtag #LISC2012 for announcements and discussions.

 

Gilberto Câmara from INPE will give a keynote at GIBDA2012

 

Gilberto Câmara

Director of the National Institute for Space Research (INPE), Brazil

We are happy to announce that Gilberto Câmara, the Director of the Brazil’s National Institute for Space Research (INPE) will give a keynote  at the Workshop on GIScience in the Big Data Age 2012 (GIBDA2012) on September 18th, 2012. The workshop will be collocated with the seventh International Conference on Geographic Information Science 2012 (GIScience 2012).

Big Data Challenge

We announce a Data Challenge as a part of the Workshop on GIScience in the Big Data Age 2012 (GIBDA2012). The winner will be awarded a $250 price sponsored by 52North and will present at the workshop, in Columbus, Ohio, USA. September 18th.

Here is a description of the Data Challenge:

The website spatial.linkedscience.org/ contains a growing collection of metadata for proceedings of conferences on topics related to geographic information science. So far, it contains most of the metadata for the GIScience, COSIT, ACM GIS, and AGILE conference series. Within the GIBDA Data Challenge, we are looking for

  • innovative analyses of the data
  • interactive visualizations
  • approaches for cleaning the data up
  • pattern and topic mining
  • enrichment and interlinking with other datasets (e.g., from the Linked Data cloud)
  • insights into GIScience as research field
  • adding social roles and aspects

The raw data can be queried via SPARQL using the SPARQL endpoint  spatial.linkedscience.org/sparql. Submissions to the data challenge are to be submitted through EasyChair as a brief description of the entry, along with a link to the demo/analysis/dataset. Entries to the challenge will be evaluated by the program committee based on innovativeness and potential impact. The winner will be awarded a $250 price sponsored by 52North and will present at the workshop. Submissions due: 18. June 2012, see GIBDA2012 Workshop pages for more details.

Organizers of the Data Challenge

 

Workshop on GIScience in the Big Data Age 2012

Workshop on GIScience in the Big Data Age 2012 (GIBDA2012) will be organized in conjunction with the seventh International Conference on Geographic Information Science 2012 (GIScience 2012) in Columbus, Ohio, USA on September 18th, 2012.

Workshop Description and Scope

The rapidly increasing information universe with new data created at a speed surpassing our capacities to store it, calls for improved methods to retrieve, filter, integrate, and share data. The vision of a data-intensive science hopes that the open availability of data with a higher spatial, temporal, and thematic resolution will enable us to better address complex scientific and social questions. However, on the downside, understanding, sharing, and reusing these data becomes more challenging. Big Data is not only big because it involves a huge amount of data, but also because of the high-dimensionality and inter-linkage of these data sets. The on-the-fly integration of heterogeneous data from various sources has been named one of the frontiers of Digital Earth research, Bioinformatics, the Digital Humanities, and other emerging research visions.

From a more technical perspective, a knowledge infrastructure is required to handle Big Data. Currently, the most promising approach is the Linked Data cloud. While the Web has changed with the advent of the Social Web from mostly authoritative towards increasing amounts of user-generated content, it is essentially still about linked documents. These documents provide structure and context for the described data and easy their interpretation. In contrast, the upcoming Data Web is about linking data, not documents. Such data sets are not bound to a specific document but can be easily combined and used outside of the original context. With a growth rate of millions of new facts encoded as RDF-triples per month, the Linked Data cloud allows users to answer complex queries spanning multiple sources. Due to the uncoupling of data from its original creation context, semantic interoperability, identity resolution, and ontologies are central methodologies to ensure consistency and meaningful results.

Space and time are fundamental ordering relations to structure such data and provide an implicit context for their interpretation. Prominent geo-related Linked Data hubs include Geonames.org as well as the Linked Geo Data project, which provides a RDF serialization of Open Street Map. Furthermore, many other Linked Data sources contain location references, e.g., observation data provided by sensors.

This full day workshop is a follow-up event of the successful first workshop on Linked Spatiotemporal Data at GIScience 2010. While this first workshop was centered around Linked Data and geo-ontologies, the GiBDA 2012 workshop takes a broader perspective by highlighting data-intensive science as the research vision and Linked Data as a promising knowledge infrastructure. We hope that the workshop will help better define the data, knowledge representations, infrastructure, reasoning methodologies, and tools needed to link and query massive data based on their spatial and temporal characteristics.

List of Relevant Topics

Topics of interest for the Linked Spatiotemporal Data workshop include (but are not limited to):

  • Mining Big Data

    • Learning geo-ontologies out of massive data
    • Abduction-based frameworks and systems
    • Mining Location-based Social Networks
    • Studying the geo-indicativeness of massive, semi-structured data
    • Analogy-based search in Big Data
    • Semantic heterogeneity and ontology alignment
    • Semantics-enabled geo-statistics
  • Retrieving and browsing of Linked Spatiotemporal Data

    • Learning Linked Spatiotemporal Data from existing sources
    • Spatiotemporal indexing of Linked Data
    • Harvesting Linked Data from heterogeneous sources
    • Spatial extensions to query languages (e.g., GeoSPARQL)
    • Visualizing and browsing through Linked Spatiotemporal Data
  • Big Data and Volunteered Geographic Information (VGI)

    • Spatiotemporal aspects of data quality, trust, and provenance
    • Tag and vocabulary recommendations for annotating VGI
    • Maintenance of outgoing links
  • Application of Linked Spatiotemporal Data

    • Linked Data and Sensor Web Enablement (SWE)
    • Linked Data and mobile applications
    • Linked Data gazetteers and Points Of Interest
    • Linked Data in the domain of cultural heritage research
  • Integration and Interoperation of Linked Spatiotemporal Data

    • Ontologies and vocabularies to support interoperability
    • Geo-Ontology Design Patterns
    • Identity assumptions and resolution for data fusion and integration
    • The role of space and time to structure Linked Data
    • Versioning of spatiotemporal data.
    • Semantic annotation and Microformats
    • Adding contextual information to Linked Data

Workshop Format and Structure

The full day workshop will focus on intensive discussions setting a roadmap towards publishing, structuring, retrieving, and consuming Linked Spatiotemporal Data and understanding how GIScience can contribute to the vision of a data-intensive science. The workshop will accept three kinds of contributions, full research papers presenting new work in the indicated areas, statements of interest, and data challenge papers. While the research papers will be selected based on the review results adhering to classical scientific quality criteria, the statements of interest should raise questions, present visions, and point to the open gaps. However, statements of interest will also be reviewed to ensure quality and clarity of the presented ideas.

We also welcome demonstrations of existing tools, applications, and geo-ontologies. Details for the data challenge are given below. The presentation time per speaker will be restricted to 5 minutes for statements of interest and 10 minutes for full papers. Based on the presented work, all workshop participants will decide on 2–3 research topics to be discussed in breakout groups. In a final session, the breakout groups will present their findings on research topics and challenges and try to integrate them across the discussed topics.

Submissions and Proceedings

All presented papers will be made available through the workshop Web-page, the electronic conference proceedings of GIScience 2012, as well as via CEUR-WS. Full research papers should be approximately 7-10 pages, while statements of interest and data challenge papers should be between 5-6 pages. Selected papers may be considered for a fast-track submission to the Semantic Web journal by IOS Press.

Please upload your submission using the workshop’s EasyChair web-page.

Data Challenge

The website spatial.linkedscience.org/ contains a growing collection of metadata for proceedings of conferences on topics related to geographic information science. So far, it contains most of the metadata for the GIScience, COSIT, ACM GIS, and AGILE conference series. Within the GIBDA Data Challenge, we are looking for

  • innovative analyses of the data
  • interactive visualizations
  • approaches for cleaning the data up
  • pattern and topic mining
  • enrichment and interlinking with other datasets (e.g., from the Linked Data cloud)
  • insights into GIScience as research field
  • adding social roles and aspects

The raw data can be queried via SPARQL using the SPARQL endpoint  spatial.linkedscience.org/sparql. Submissions to the data challenge are to be submitted through EasyChair as a brief description of the entry, along with a link to the demo/analysis/dataset. Entries to the challenge will be evaluated by the program committee based on innovativeness and potential impact. The winner will be awarded a $250 price and will present at the workshop.

Important Dates

  • Submission due: 18. June 2012
  • Acceptance Notification: 6. July 2012
  • Camera-ready Copies: 16. July 2012

Organizers

Programme Committee

  • TBA

Related Activities

Please feel free to contact the organizers for further questions at jano @ geog . ucsb. edu.