Résumé
Techniques for extracting knowledge from huge volumes of biological data, obtained from DNA microarrays analysis, allow the discovery of previously unknown knowledge. How-ever, these techniques generally produce many results not easily actionable by the experts. We propose a tool dedicated to the support of these experts in the process of appropriation and exploitation of the knowledge obtained after the extrac-tion process. This tool is based on 3 visualization techniques (clouds, solar systems and treemap) that allow biologists to capture large amounts of patterns (ordered sequences of genes). These 3 visualizations are used to identify associations between group of patterns, the hierarchical relationships be-tween these patterns and the association of the sequences with the literature documents in order to ease the access to the publications, which deals about the genes of the patterns.