AST for Clone Detection Code clone is killing projects high-vote buggy code on Stackoverflow intellectual property (IP) Typical work: Token-based detection:"CCFinder:A multilinguistic token-based code clone detection system for large scale source code(TsE,28(7),2002) Tree-based detection:"Scalable detection of semantic clones"(ICSE'08)AST for Clone Detection " " Code clone is killing projects high-vote buggy code on Stackoverflow intellectual property (IP) … Typical work: Token-based detection: "CCFinder: A multilinguistic token-based code clone detection system for large scale source code" (TSE, 28(7), 2002) Tree-based detection: "Scalable detection of semantic clones" (ICSE’08)