Question: 3. Read the lecture slides about the pruning conditions for Simple Point Method (SPM) of GNN queries, and prove the pruning condition below (Hint: you

 3. Read the lecture slides about the pruning conditions for SimplePoint Method (SPM) of GNN queries, and prove the pruning condition below

3. Read the lecture slides about the pruning conditions for Simple Point Method (SPM) of GNN queries, and prove the pruning condition below (Hint: you may need to read the original paper of GNN and use the triangle inequality for the proo) [30 points] best dist+dist(q,Q) mindist(N.q)2 Pruning Conditions for SPM An MBR node N can be pruned, if it holds that: best-st+dist(q,Q) mindist(N,q)2 o where best dist is the distance of the best GNN found so far centroid q 4 mindist(N,q-10 mindist(N29-6 3. Read the lecture slides about the pruning conditions for Simple Point Method (SPM) of GNN queries, and prove the pruning condition below (Hint: you may need to read the original paper of GNN and use the triangle inequality for the proo) [30 points] best dist+dist(q,Q) mindist(N.q)2 Pruning Conditions for SPM An MBR node N can be pruned, if it holds that: best-st+dist(q,Q) mindist(N,q)2 o where best dist is the distance of the best GNN found so far centroid q 4 mindist(N,q-10 mindist(N29-6

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