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Progressive Framework o Index all strings using a trie structure Top3-Query QFsrajit S[15] 2t6 11 a[1,1]e[2,2] Entr J-th character of Q2习“3 12 i[34 i-th node of trie 13 a 18 25 10 Tx node and char with ed=x 19 26 D:1 D:2|D3D:4 D:5 D:6 2/2/2021 Topk Search(@ ICD E2013 21/42Progressive Framework  Index all strings using a trie structure Top3-Query: Q=srajit 2/2/2021 TopkSearch @ ICDE2013 21/42 (ni j) Tx: node and char with ED=x i-th node of trie; j-th character of Q Entry
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