With data arranged in a table, you can display a total row after the last record. Excel sums the values in the last column automatically
Indicate whether the statement is true or false
TRUE
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The following questions examine how the support and confidence of an asso- ciation rule may vary in the presence of a concept hierarchy.
(a) Consider an item x in a given concept hierarchy. Let x1, x2, ..., xk denote the k children of x in the concept hierarchy. Show that s(x) ? k i=1 s(xi), where s(·) is the support of an item. Under what conditions will the inequality become an equality? (b) Let p and q denote a pair of items, while ˆp and ˆq are their corresponding parents in the concept hierarchy. If s({p, q}) > minsup, which of the following itemsets are guaranteed to be frequent? (i) s({p, q ˆ }), (ii) s({p, qˆ}), and (iii) s({p, ˆ qˆ}). (c) Consider the association rule {p} ?? {q}. Suppose the confidence of the rule exceeds minconf. Which of the following rules are guaranteed to have confidence higher than minconf? (i) {p} ?? {qˆ}, (ii) {pˆ} ?? {q}, and (iii) {pˆ} ?? {qˆ}.
Which property of the FLVPlayback component is used to determine which video file is played in the component?
What will be an ideal response?
The filtering button that removes a filter is the ________ button
Fill in the blank(s) with correct word
List five characteristics of a link-state router.
What will be an ideal response?