Answers: 2
Computers and Technology, 21.06.2019 22:00
Some of your friends have gotten into the burgeoning field of time-series data mining, in which one looks for patterns in sequences of events that occur over time. purchases at stock exchanges"what's being bought" are one source of data with a natural ordering in time. given a long sequence s of such events, your friends want an efficient way to detect certain "patterns" in them"for example, they may want to know if the four events buy yahoo, buy ebay, buy yahoo, buy oracle occur in this sequence s, in order but not necessarily consecutively. they begin with a collection of possible events (e.g., the possible transactions) and a sequence s of n of these events. a given event may occur multiple times in s (e.g., yahoo stock may be bought many times in a single sequence s). we will say that a sequence s is a subsequence of s if there is a way to delete certain of the events from s so that the remaining events, in order, are equal to the sequence s . so, for example, the sequence of four events above is a subsequence of the sequence buy amazon, buy yahoo, buy ebay, buy yahoo, buy yahoo, buy oracle their goal is to be able to dream up short sequences and quickly detect whether they are subsequences of s. so this is the problem they pose to you: give an algorithm that takes two sequences of events"s of length m and s of length n, each possibly containing an event more than once"and decides in time o(m + n) whether s is a subsequence of s.
Answers: 3
Computers and Technology, 22.06.2019 01:40
Kali, a python programmer, is using the turtle module to write the word βhello.β which code should she use to indicate the location to begin writing the word? a # pick up the turtle and move it to its starting location. b penup(-100, 200) goto() pendown() c penup() goto(-100, 200) pendown() d # pick up the turtle and move it to (-100, 200)
Answers: 2
Computers and Technology, 23.06.2019 00:00
Donna and her team of five have invented a new gadget for the science exhibition in their college. which intellectual property right will protect their invention?
Answers: 1
Computers and Technology, 24.06.2019 07:30
Jason is working on a microsoft excel worksheet and he wants to create a print preview shortcut. his teacher asks him to access the customization option to create the new shortcut. which two tabs should jason select to place the print preview shortcut on the worksheet toolbar? a. new tab (custom) and new group (custom) b. new file tab (custom) and new tab (custom) c. new custom group and new command d. new custom tab and new command
Answers: 2
What is the difference between and etc?...
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