Pivotal Entry-based Method e Definition 2(Pivotal Entry An entry(i, i)in Ex is called a pivotal entry, if D[i+lll+1]>D[ili 0123456 s it We only need to keep the ivotal enti 0123456 eraji 2/2/2021 Topk Search(@ ICD E2013Pivotal Entry-based Method  Definition 2 (Pivotal Entry): An entry ⟨i, j⟩ in Ex is called a pivotal entry, if D[i + 1][j + 1] > D[i][j]. We only need to keep the pivotal entry 2/2/2021 TopkSearch @ ICDE2013 27/42 0