Introduction
COGIT laboratory(Object Design and Generalisation of Topographic Information)
studies the issues relative to the use of vectorial topographic data.
Created in 1988 at the same time as the research department,
COGIT laboratory has been directed successively by Isabelle Destival,
Benoît David, Jean-Philippe Lagrange (1992-1995), Sylvie Lamy (1995-2000),
Anne Ruas (2000-2011) and Sebastien Mustière.
Activities
COGIT laboratory looks at things from the point of view of products creation (maps, set of data) or services according to particular needs. On the one hand, we study the improvement of processes automation and on the other hand, we try to facilitate the needs expression and to translate them into requests pointing to data and processes. Further considerations and improvements are needed at different steps. From resources point of view (DB and treatments), analysis automation, coherence and geographical data modification must be improved. From serveur point of view (interfaces), the resources msut be better described and methodologies based on a dialog system/user must be developped. Thus, the user needs will be better understood and the system will answer taking into account the resources available.
The issue of accessing geographical data adapted to needs is vast. It means lots of efforts at the scale of architecture. In that way, the serveur could have access physically to DB and treatments. Moreover, some geographical applications should be studied and made accessible. We deals with 5 GIS applications:
- Data extraction by requesting a DB schema,
- Guided legend creation and automatic analysis of symbolised data lisibilty,
- Generalisation automation either for the map creation or to create data sets in which a details change is needed,
- Automatic integration of multi-sources and multi-resolution data,
- Topographic data analysis in the domain of natural hazards and territorial phenomena.
Context 2009
in progress
Research topics
The COGIT research work is divided into 5 research actions :
- Geographical data infrastructure - This research topic studies all processes concerning data updating and integration, focusing on collaborative services.
- Adapted generalisation - This research topic improves the automation of generalisaton, in order to develop generalisation services ans make the actual processes more flexible and easily customisable.
- Legend conception - This research topic studies the required knowledge for map legends conception. The aim is to propose methods to create custom maps for various users.
- Data quality evaluation - This research topic tries to understand the impact of data quality on standard computations, and to describe different data contents (semantic and geometric).
- Analysis of geographical space and its dynamics - This research topic proposes spatio-temporal models to help (1) data exploration (2) the analysis of spatial dynamics (3) the narrow consideration of territories to analyse phenomenons and their dynamics.
Researchers of COGIT
COGIT is presently directed by Sébastien Mustière
It is composed of 25 researchers and are permanent.
Publications of COGIT
The publications list of COGIT can be accessed :
since 1988, over the last decade, over the 3 last years.
Interships, Phds and post-docs proposed by COGIT
COGIT offers PhDs subjects for external researchers,, post-docs, and interships for students from various formations
