GeoKnow addresses a bold challenge in the area of intelligent information management: the exploitation of the Web as a platform for geospatial knowledge integration as well as for exploration of geographic information. This group will bring together scientists, GIS users, linked Data users, data consumers and providers, interested in the exploitation of linked geospatial data.
This group will not produce specifications.
Note: Community Groups are proposed and run by the community. Although W3C hosts these conversations, the groups do not necessarily represent the views of the W3C Membership or staff.
The Linked Map team is willing receive feedback on the results of the project. This project is a short term project (less than 1 year) and it is part of the larger FP7 project PlanetData. Linked Map address the development of a standard WMS that, at the same time, is a LD node offering read/write access to geographic knowledge. This vision is applied in a challenging scenario: the use of crowdsourcing techniques to improve the quality of the automatic integration of a National Map with existing VGI data.
Up to date we have developed:
A transparent semantic proxy for WMS 1.3.0 (deliverable D17.1)
Transformation into RDF of a National Map (BCN/BTN25 provided by IGN.es) and a VGI dataset (a portion of OSM) (deliverable D16.3)
Large scale alignment of both datasets using only name, type and location properties (deliverable D16.3)
Annotation of the resulting RDF datasets at feature level with W3C PROV ontology (deliverable D16.1 and implementation D16.3)
The GeoKnow project has been running over one year and is proud to show the first results of the research project during the W3C Switzerland event on May 22, 2014. Ontos, a W3C member and a partner of the GeoKnow project will demonstrate the GeoKnow Generator during the talk “Linked Open Data”. The event takes place in 1700 Fribourg, Switzerland and is free of charge. More information about the event and registration is available at the following link:
The GeoKnow team has created the first tutorials showing how to work with the GeoKnow Generator and the tools. The team plans to extend the list of tutorials during 2014 helping everybody to get a better understanding on how to work with geospatial data using the GeoKnow LD stack.
The GeoKnow consortium also welcomes everybody to work with the prototype available at http://generator.geoknow.eu:8080/generator/#/home. Just keep in mind it is the demo server and as with many software projects some minor problems can occur.
Any feedback is welcome via our Twitter channel https://twitter.com/geoknow.
One of the most important event in Europe about Open Data is the European data forum. During the event that will take place in March in Athens several workshop about tools and applications are organised. The GeoKnow consortium will present the LinkedDataEurope workshop the current version of the research project. During the talk we will show the GeoKnow research objectives related to geospatial linked open data, the GeoKnow Generator and various tools that help to fulfil the Linked Data Lifecycle with geospatial data.
Following is the link to the slides that will be presented at the workshop:
In the past month (April 2013), we invited geospatial data consumers and providers, GIS experts and Semantic Web specialists to participate in our Geospatial Data Users Survey. The goal of this survey was to collect general use cases and user requirements from people outside the GeoKnow consortium. We publicised the survey using mailing lists and social networks, and it was available for 25 days. During this period we received 122 responses, of these we had 51 full responses and 71 incomplete ones. Since we were interested in having good quality surveys, so we performed a manual control, which resulted in 39 useful responses – not too bad. In this blog post, we aim to show some interesting results from our survey. If you are interested to learn more about the results of this survey, you can check the public derivable available here.
One of the goals of this survey was to learn more use cases different from those we already consider in the project. Thus, we asked participants how they use geospatial data in their work. To analyse this question, we grouped answers in different types which is shown in the graph at the right. Most of the scenarios were about visualisation and analysis, followed by geospatial data creation scenarios.
We asked users for the most popular tools they use at their work. Responses to this question were OSM and Google Maps/Earth, as well as other GSI. After we asked about the features they like the most about these tools, participants reflected preference by easy to use and free tools for their work, referring to their popular choices of Google Maps or OSM. Also having an API to interact with the application is important. The fact that applications provided data that can be integrated was also appreciated. GIS applications were considered as difficult. Integration and interoperability were mentioned as goals. Besides the previous question, we were also interested in knowing the missing functionalities that may improve their work. A list of these functionalities grouped by the related work package within GeoKnow is presented in the image below.
This survey allow us to learn from different use cases, main features used, and desired functionalities, that are to be considered in the creation of the GeoKnow Generator. Some important high level findings from the survey were the emphasis in interoperability and reusability through open APIs and approachable visualisation components, support for common geospatial data formats and geodbs, and the necessity of simple tools to support data integration/reuse from geospatial LOD sources. We also found that some of the ideas of the GeoKnow project are further supported by user requirements like the integration of private and public data and the importance of using the web as an integration platform.
Many different applications we deal with on a daily basis have some kind of geographic dimension. This geospatial information is normally required for decision making at different levels. However, this information is dispersed among a multiplicity of sources. At GeoKnow we aim to make information seeking easier by allowing exploration, editing and interlinking of heterogeneous information sources with a spatial dimension.
Now we are interested in getting to know the people that face these kinds of issues in their everyday work. We have created a survey to help us to understand and to hear more about their experience with geospatial data. This survey targets geospatial data consumers and providers, and GIS users interested in having an integrated web of geospatial data.
If you use geospatial data in your work, your contribution in this survey will be highly appreciated. The outcome of this survey will impact the use cases and requirements for the GeoKnow project, which aims to create a versatile software framework to rapidly generate spatial semantic web applications.
We are offering a 20 euro Amazon voucher to the first 50 completed surveys. Willing to participate? Please go right away to:
We would like to announce the Descartes Core 2013 geospatial semantics specialist meeting that will take place 03/20-22/2013 at Santa Barbara, CA, USA. The meeting aims at taking the current series of GeoVoCamps, workshops, and specialists meetings to the next level by establishing a common core of (geo-)ontology design patterns, vocabularies, best practice guides, examples, software, and services, that aim to foster semantic interoperability between different (Linked Data) sources without restricting semantic heterogeneity at the same time.
The meeting will be organized as a so-called Geo-Vocabulary Camp (GeoVoCamp). This is a series of free and informal but highly productive meetings in which domain experts and ontology engineers work together to discuss problems and projects and to develop ontologies and tools. Previous events have resulted in a number of geo-ontologies, new collaborations, and research papers. If you are interested in geospatial semantics, linked spatiotemporal data, big geo-data, semantic interoperability and heterogeneity, semantic annotations and metadata, or geographic information retrieval, we hope that you will be able to join us this March. We especially welcome participants from different domains such as the digital humanities or chemistry that are interested in space and place.
Please register as soon as possible to help us in organizing the event. We will announce the schedule, activities, speakers, and potential topics for breakout groups during the next weeks using the wiki at http://descartes-core.org/. The page also contains links to some previous events.
Mark Gahegan, Pascal Hitzler, Werner Kuhn, and Krzysztof Janowicz