  Knowledge bases are collections of domain-specific and commonsense facts.
Recently, the sizes of KBs are rocketing due to automatic extraction for
knowledge and facts. For example, the number of facts in WikiData is up to 974
million! According to our observation, current KBs, especially domain KBs, show
strong relevance in relations according to some topics. These patterns can be
used to conclude and infer for part of facts in the KBs. Therefore, the
original KBs can be minimzed by extracting patterns and essential facts.
