Measures of Similarity for Command and Control Situation Analysis

Collective Command and Control (C2) in Multinational Civil-Military Operations pose stringent requirements on C2 Information Systems (C2ISs) interoperability as well as the higher level automated reasoning processes. One such process, Case-Based Reasoning (CBR), depends on proper case formal representations and on the ability to assess similarity between an unfolding case (e.g. C2 situation) and known cases a priori in the case base. This paper explores the main classes of similarity metrics and reflects on the most desirable features of an ideal similarity measure in support of C2 situation analysis.