Second User Community Workshop

10/11 May 2012, Darmstadt, Germany

View the Agenda here
Register via the web form found here or via an e-mail at the following address:
eva -dot* klien *at- igd -dot* fraunhofer *dot- de

Make sure you include your full name, your affiliation, and state whether you want to receive the TELEIOS travel support.

Invitation to participate

This invitation is addressed to experts from the international Earth Observation (EO) community who are interested in influencing current developments for improving the accessibility of satellite data. It will be of specific interest for EO data providers or operators of large archives and the multimedia search engine R&D community.

Context

Earth observation data have increased considerably over the last decades with satellite sensors collecting and transmitting back to Earth several terabytes of data per day. This data acquisition rate is a major challenge to existing data management, exploitation and dissemination approaches used by various agencies such as ESA, NASA and European national space agencies. The availability of earth observation data now outstrips the availability of human intelligence to exploit it.

TELEIOS is a 3-year funded European project, which started on 1st September 2010 with the aim to create an earth observatory infrastructure for satellite data and applications that makes the available petabytes of satellite data easily accessible by an even larger group of end user applications.

For more details on the project's objectives, the core research challenges addressed and the current status of work, please refer to the Project Newsletter found here and the Video Screencast accessible below.

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Scope of the Workshop

In the 1st TELEIOS User Community workshop that took place at ESRIN in Italy, we concentrated on presenting the vision of TELEIOS to a selected group of experts from the international Earth Observation community, and on collaboratively capturing the requirements of this community with respect to the infrastructure to be developed in TELEIOS. In the 2nd TELEIOS User Community Workshop we will present an intermediate snapshot of the TELEIOS developments

  • to inform users on the evolution and status of TELEIOS
  • to demonstrate the implemented system (or system components) and receive feedback from the users on their usability
  • to demonstrate and to discuss the effectiveness and applicability of innovative methods for improving the access to EO data
  • to collect suggestions and requirements for the system evaluation that will be performed by the end of the project (3rd User Community Workshop in 2013)

To this end, the major part of the Workshop will be organized in small working groups that provide the opportunity for hands-on experiences and focused discussions.

Agenda

The Workshop takes place on 10/11 May 2012. It starts on Thursday at 9:00 a.m. and ends on Friday with Lunch.

Day 1, 09:00 - 17:30

09:00-12:00

BLOCK 1: Introduction - 2,5 h

30'

Welcome and Introduction to TELEIOS project (presentation: ppt, pdf)

NKUA

30'

Introduce the goals, agenda and methodology of the workshop (presentation: ppt, pdf)

Review of results from 1st User Community Workshop: How did the requirements from last Workshop influence the TELEIOS developments

Fraunhofer

1h

Introduction of participants and first feedback on project and participant's expectations towards the project/workshop

All

Session 1

30'

Real-time fire monitoring based on continuous acquisitions of satellite images and geospatial data (presentation: ppt, pdf):

Presentation on
I. Introduction to the use case and (NOA)
II. System Integration (ACS)

NOA / ACS

12:00-13:30 LUNCH

13:30-18:00

BLOCK 2: Testing of and Feedback on the TELEIOS infrastructure I
(Working sessions) - 4h

Session 1 (continued)

30' - 1h

Real-time fire monitoring based on continuous acquisitions of satellite images and geospatial data (presentation: ppt):

Demonstration of Real-time fire monitoring with simulated arrival of new imagery (ACS)

Discussion and Feedback

Presentation Outlook on future directions (NOA)

NOA / ACS

Session 2

2h

A Virtual Observatory for TerraSAR-X data (presentation: ppt, pdf)

Presentation The TerraSAR-X Virtual Observatory: an overview of data content, KDD functions and use cases

Demonstration of KDD functions, applications, and use cases

Discussion and Feedback

Presentation Outlook on future directions

DLR

Session 3

1h

The TELEIOS Query Builder (presentation: pdf, odp)

Presentation on Introduction to Idea, Design and Benefits of the Query Builder

Demonstration of the Query Builder Prototype

Discussion and Feedback

Presentation Outlook on future directions

Fraunhofer

19:00 DINNER

Day 2, 9:00 - 12:30

9:00-11:00

BLOCK 3: Testing of and Feedback on the TELEIOS infrastructure II
(Working Sessions) - 2h

Session 4

1h

Strabon: Semantic support for EO Data Access in TELEIOS (presentation: ppt, pdf)

Presentation Introduction to Strabon

Interactive Demonstration of the semantic query capabilities

Discussion and Feedback

Presentation Outlook on future directions

NKUA

Session 5

1h

MonetDB: Query processing at light-speed for TELEIOS (presentation: pdf, demo: script, sample satellite image)

Presentation Introduction to the open-source relational database management system MonetDB

Demonstration and hands-on session

Discussion and Feedback

Presentation Outlook on future directions

CWI

11:15-12:30

BLOCK 4: Wrap-up & discussion, synthesis-session - 1,5h

 

Wrap up from working sessions, discussion of selected topics and outlook on planned developments (presentation: pdf)

Fraunhofer

12:00 LUNCH

A detailed description of the Sessions follows.

Session 1: Real-time fire monitoring based on continuous acquisitions of satellite images and geospatial data

TELEIOS aims at advancing the current state of the art in fire monitoring services developed by the National Observatory of Athens (NOA) in the context of GMES. In this session, we will demonstrate the current status of implementation for Real-time fire monitoring based on continuous acquisitions of satellite images and geospatial data. The functionalities that have been integrated into the user interface for accessing the EO data catalogue so far are the following:

  • Real-time fire monitoring with simulated arrival of new imagery.
  • Search for raw satellite data.
  • Offline processing of raw data using MonetDB, ability to select processing chain to use.
  • Search for hotspot products.
  • Refinement of hotspot products with semantic queries.

In general, the developments in TELEIOS aim at improving the capability to extract information from single images and from time series of images, thus supporting the work of real-time decision makers and of earth scientists. Specifically, the benefits of the presented system in its current state include:

  • Robustness and response time of the infrastructure.
  • Usability of front-end interface.
  • Data processing performance and speed.
  • Thematic accuracy of the products for the two processing chains and the post-processing refinement.
  • Synoptic view of fires' evolution.
  • The potential to add value to the fire products via semantic queries.

Targeted Audience: This session will be of interest for anyone involved both in fire monitoring (end users) and the underlying technologies of the TELEIOS infrastructure (scientific users). Users from other application domains can also benefit from a practical example of real time processing of Earth Observation data.

Preparation Material: No specific material is needed for this session. Please have a look at the Video on our website, which gives a short overview on the motivation and current status of the Real-time fire monitoring use case.

Session Contact:
Haris Kontoes (kontoes at space.noa.gr)
Ugo Di Giammatteo (udig at acsys.it)

Session 2: A Virtual Observatory for TerraSAR-X data

Our aim is to advance the current state of the art methods for SAR information extraction and understanding to cope with the dual curse of complexity: high resolution and huge data volumes. Another concern for research and development in TELEIOS are the methods for assuring data quality, which are still rather laborious, not precise enough and time consuming.

The Demo will include: query by example, content based exploration, annotation for semantic catalogue creation, elements of KDD, and scenarios for typical EO applications of VHR images.

Session Contact:
Mihai Datcu (Mihai.Datcu at dlr.de)

Session 3: TELEIOS Query Builder

The TELEIOS Query Builder is a graphical editor that enables users to flexibly construct a broad range of queries. The querying of EO products is not only based on simple combinations of spatiotemporal extent and product type but also supports more complex topological, temporal and other semantic relations. In addition, users are enabled to conveniently share such queries with each other.

The design of this graphical editor allows users to create, save, load, modify and share or recommend visual query models which are a combination of a graph and filter facet based approach. By the aid of this visual query editing facilities, users can formulate more advanced queries without being required to have a background in database or semantic web technology.

In this session, Fraunhofer IGD will demonstrate a prototype of the Query Builder. After a short introduction of the current EOWEB interface and the types of queries that are supported by it, the extended capabilities of the Query Builder will be showcased. A specific focus will be put on advanced topological and spatial query constraints by demonstrating the interactive construction of a set of example queries.

Targeted Audience: All kinds of users, but especially EO experts coming from an application domain without a specific background in semantic web or database technology

Preparation Material: No specific material is needed for this session.

Session Contact:
Robert Gregor (robert.gregor at igd.fraunhofer.de)

Session 4: Strabon: Semantic support for EO Data Access in TELEIOS

The semantic web technology that will be integrated into the TELEIOS infrastructure is built on the Strabon system, which is developed at the National and Kapodistrian University of Athens (NKUA). In this session, we will demonstrate in more detail the benefits of semantic querying and query refinement for improving the access to EO data. NKUA will illustrate how Strabon is used to

  • discover raw data and products created by the processing chains of NOA and DLR, utilizing an extended EOWEB-like functionality for the DLR Use Case,
  • improve the thematic accuracy of the products of NOA with a post processing step that refines them by taking into account auxiliary data published as linked open data,
  • demonstrate how the automatic generation of fire maps enriched with relevant geo-information is made possible with the use of a series of stSPARQL queries.

We would also like to demonstrate some incomplete information functionality we envision for Strabon by means of a Powerpoint presentation and get feedback from the audience regarding its usefulness for Earth Observation data.

Targeted Audience: End users such as individuals from the domain of civil protection and domain experts on EO topics

Preparation Material: Participants can gain access to a document available at the website of Strabon, introducing the stRDF data model and the stSPARQL query language to the participants. The document includes various examples demonstrating the capabilities offered. It also includes a section presenting how Strabon can be used in a real world scenario.

Session Contact:
Manolis Koubarakis (koubarak at di.uoa.gr)

Session 5: MonetDB: Query processing at light-speed for TELEIOS

The Stichting Centrum voor Wiskunde en Informatica (CWI) will introduce and demonstrate their open-source relational database management system MonetDB. MonetDB uses column store technology and hardware aware algorithms to achieve high performance and scalability in particular for scientific and analytical workloads. We will particularly focus on our new SciQL language, an extension of SQL that is specifically geared at supporting scientific workloads. SciQL introduces multi-dimensional arrays and efficient array processing functionality as first-class citizens next to relational tables, offering a seamless symbiosis of multi-dimensional arrays and relational tables. We will showcase the processing of example satellite data to demonstrate the suitability, convenience, efficiency and effectiveness of MonetDB and SciQL to support EO tasks and applications.

Targeted Audience: This session is more for EO system/application developers than users of EO system/application end-users. Experiences with relational databases and SQL are strongly recommended.

Preparation Material: Users are welcome and invited to bring their data (preferably in CSV format, as HRIT/LRIT images, or as GeoTIFF images) and their queries (in SQL or natural language) or processing algorithm (in pseudo-code or C). However, the time during (and after) the session might only be sufficient for a first assessment and some indicative advice in selected cases, rather than a complete implementation in / port to MonetDB/SciQL

Contact:
Stefan Manegold (Stefan.Manegold at cwi.nl)

Registration and Practical arrangements

For registering to the Workshop, please fill the registration form accessible below:
Registration form for the 2nd User Community Workshop
or
send an e-mail at the address below:
eva -dot* klien *at- igd -dot* fraunhofer *dot- de

Make sure you include your full name, your affiliation, and state whether you want to receive the TELEIOS travel support.

The workshop is organised on 10/11 May 2012 at the premises of:
Fraunhofer Institut fuer Graphische Datenverarbeitung (IGD)
Fraunhoferstr. 5
64283 Darmstadt
Germany

Here you can find information on how to travel to Fraunnhofer IGD in Darmstadt:
http://www.igd.fraunhofer.de/en/Institut/Standorte/Darmstadt/Fraunhofer-IGD-Darmstadt

This site gives additional information on the location of the workshop:
http://igd.fraunhofer.de/en/Institut/Standorte/Darmstadt/Fraunhofer-IGD-Darmstadt?quicktabs_=second#quicktabs-

A list of close by Hotels can be found here.

TELEIOS has funds available to cover your costs for participating in the User Community Workshop. Please indicate your interest for receiving travel funds when registering on the Workshop Website.

Workshop Organizers

This Workshop is organized and supported by the TELEIOS project consortium. For further information on the TELEIOS project, please refer to the website: http://www.earthobservatory.eu

Workshop contact

Dr. Eva Klien

Spatial Information Management
Fraunhofer Institute for Computer Graphics Research
Darmstadt, Germany
Email: eva -dot* klien *at- igd -dot* fraunhofer *dot- de

Project coordinator

Prof. Manolis Koubarakis

Department of Informatics and Telecommunications
National and Kapodistrian University of Athens
University Campus, Ilisia
15784 Athens, Greece
Email: koubarak *at- di -dot* uoa *dot- gr