sentences:  "Most of these techniques also employ additional information such as dictionaries, thesauri, and user-provided match or mismatch information"
  
  Reusing matching information
  Another initiative has been to re-use previous matching information as auxiliary information for future matching tasks.The motivation for this work is that structures or substructures often repeat, for example in schemas in the E-commerce domain.Such a reuse of previous matches however needs to be a careful choice.