The efficient discovery of denial constraints in tables is a challenging task. So far, our group has developed two DC discovey algorithms:
- We have released a hybrid DC discovery algorithm Hydra, which is available as part of the metanome-algorithms respository.
- Our most recent addition to the family of DC discovery algorithm is a new approximate DC discovery algorithm DCFinder, which is also available as part of the metanome-algorithms respository.
The data profiling tool Metanome provides standardized interfaces to facilitate the comparison of different DC discovery methods.