Co-lending systemic risk analysis over heterogeneous data collections

The paper considers an approach to solving the problem of co-lending systemic risk analysis over heterogeneous data collections in a combined virtual and materialized integration environment. The problem belongs to the data-intensive domain of financial macromodeling. Virtual integration is implemented using the subject mediation technology. Materialized integration is implemented using the Hadoop open-source software framework for distributed storage and processing of large datasets accompanied by the Hive system intended for relational warehousing over Hadoop.