TimeReach: Historical Reachability Queries on Evolving Graphs

Abstract

Since most graphs evolve over time, it is useful to be able to query their history. We consider historical reachability queries that ask for the existence of a path in some time interval in the past, either in the whole duration of the interval (conjunctive queries), or in at least one time instant in the interval (disjunctive queries). We study both… (More)
DOI: 10.5441/002/edbt.2015.12

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