Requirements Specification of the Vertical Industrial Use Case ... - IKS

56 / 196Deliverable 2.3: Requirements Specification for the Vertical Industrial Use CaseUse Case ID UC-230122: Divisive algorithm (top-down) [SC3]Description The divisive algorithms for hierarchical requirements are following a top-downmethodology. The clustering starts at the root and iteratively refine into otherclusters (opposite: agglomerative algorithms).Parent UC-230121Extensions ---Includes ---Scope Hierarchical clusteringActor(s) IKS ServiceGoal Support of the hierarchical clustering by divisive algorithms.Trigger Performing the hierarchical clustering service.UC-230123: Agglomerative algorithm (bottom-up)Use Case ID UC-230123: Agglomerative algorithm (bottom-up) [SC3]Description In contrast to the top-down approach of the divisive algorithms, the bottom-upapproach starts at the leaves of the hierarchy (content items) and successivelymerge these items to larger clusters.Parent UC-230121Extensions ---Includes ---Scope Hierarchical clusteringActor(s) IKS ServiceGoal Support of the hierarchical clustering by agglomerative algorithms.Trigger Performing the hierarchical clustering service.UC-230124: Calculate matching to existing clustersUse Case ID UC-230124: Calculate matching to existing clusters [SC4]Description Based on a set of existing clusters in a defined scope, a IKS service should beable to calculate the matching of new content to the existing clusters.© IKS Consortium2010