Accepted submissions for conference, journal or workshop papers I have either written alone or were I was partly involved in. They describe work coming from my PhD or one of the projects I am currently working on. If possible, I added a link to the document containing the text (usually a PDF). If the article was later presented, e.g. on a conference, I try to attach the slides with annotations to the post as well.

User Feedback in the Geospatial Semantic Web

By pat on 20 August 2009

Presented at the Workshop on Geographic Information on the Internet Workshop (GIIW), which was held in conjunction with the European Conference on Information Retrieval in Toulouse, April 2009. The whole proceedings can be downloaded here , my paper is also available from citeulike.

Quality of Geographic Information Patchworks

By pat on 19 May 2008

Sven's and my submission for 2008's AGILE conference. Unfortunately, the paper lacks an implementation. But in this case I would claim that there is nothing we can do about it. It lies in the responsibility of the data providers to incorporate quality metrics and user feedback tools to visualize certain quality properties like completeness. The slides for the talk are attached.

Reputation as tool to ensure validity of VGI

By pat on 18 December 2007

This paper was my submission for the Workshop on Volunteered Geographic Information in Santa Barbara in December 2007. Here I further focus on how to communicate the credibility of spatial data contributed by users like you and me. It takes some of the ideas of my GI Days submission.

Position Paper for IFGI Doctorial Colloquim

By pat on 07 December 2007

This paper represents the status of my PhD in late 2007. It presents the motivation, research questions (and accordingly the hypothesis), the approach, and what has been achieve so far.

Collaborative Metadata: The Need for Reputation

By pat on 26 September 2007

This short paper starts with an introduction into participatory GIS, which means to let normal (non-professionals) participate in the creation, evaluation and usage of GI, usually in the context of geospatial decision making. A solution is needed to communicate the credibility (and therefore also usefulness) of user-created GI in these scenarios, and here we introduce Reputation of the user as such a tool. Several applications exist in which reputation can help to evalute usefulness.

Collaborative Metadata for Geographic Information

By pat on 18 September 2007

Retrieval of web-based geographic information (GI) for spatial decision-making processes can benefit from emerging semantic technologies. Ontology-supported metadata, collaboratively created by a social network of spatially-aware users, ensures efficient and precise discovery of maps published with the help of catalogs. The creation and maintenance of the metadata is driven by two forces: on the one hand experienced catalogers who ensure consistency and quality, on the other hand catalog users who continuously adapt and extend the metadata.