which conferences have been excluded from the federated computing research conference for at least three years?
acm conference on electronic commerce, acm sigplan/sigbed conference on languages,, acm symposium on principles of distributed computing, acm sigplan symposium on principles and practice of parallel programming, acm symposium on parallelism in algorithms and architecture, acm symposium on computational geometry
which of these conferences has exactly three exclusions?
acm conference on electronic commerce, acm symposium on parallelism in algorithms and architecture
which of these conferences have missed the following years. 1993, 1996, 1999?
acm conference on electronic commerce, acm symposium on parallelism in algorithms and architecture
which of these conferences has a ccc labeled as ec?
acm conference on electronic commerce