It is best to group information into large chunks rather than use a lot of hypertext links.
Answer the following statement true (T) or false (F)
False
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Consider the data set shown in Table 7.8. The first attribute is continuous, while the remaining two attributes are asymmetric binary. A rule is consid- ered to be strong if its support exceeds 15% and its confidence exceeds 60%. The data given in Table 7.8 supports the following two strong rules:
(i) {(1 ? A ? 2), B = 1}?{C = 1}
(ii) {(5 ? A ? 8), B = 1}?{C = 1}
(a) Compute the support and confidence for both rules(b) To find the rules using the traditional Apriori algorithm, we need to
discretize the continuous attribute A. Suppose we apply the equal width
binning approach to discretize the data, with bin-width = 2, 3, 4. For
each bin-width, state whether the above two rules are discovered by
the Apriori algorithm. (Note that the rules may not be in the same
exact form as before because it may contain wider or narrower intervals
for A.) For each rule that corresponds to one of the above two rules,
compute its support and confidence.
(c) Comment on the effectiveness of using the equal width approach for
classifying the above data set. Is there a bin-width that allows you to find both rules satisfactorily? If not, what alternative approach can you
take to ensure that you will find both rules?
When a peripheral device malfunctions, the first thing you should do is check _____.
A. whether the device driver is up-to-date B. that the device is properly connected to the computer and power supply C. whether the device is properly configured D. whether the operating system is damaged
When exporting Access data into an existing workbook, if you use the ________ to export selected records, the original data in the Excel workbook is overwritten
Fill in the blank(s) with correct word
The first CSS recommendation was published by the W3C in 2000.
Answer the following statement true (T) or false (F)