SubgroupMiner is an advanced subgroup mining system supporting multirelational hypotheses, efficient data base integration,
discovery of causal subgroup structures, and visualization based interaction options. When searching for dependencies between
subgroups and a target group, spatial subgroups with multirelational descriptions are explored. Search strategies of data
mining algorithms are efficiently integrated with queries in an object-relational query language and executed in a database
to enable scalability for spatial data.