The sizes of pie slices are automatically adjusted when the underlying data values are changed
Indicate whether the statement is true or false
TRUE
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Consider the data set shown in Table 7.13. Suppose we are interested in extracting the following association rule:
{?1 ? Age ? ?2,Play Piano = Yes} ?? {Enjoy Classical Music = Yes}
To handle the continuous attribute, we apply the equal-frequency approach
with 3, 4, and 6 intervals. Categorical attributes are handled by introducing
as many new asymmetric binary attributes as the number of categorical val-
ues. Assume that the support threshold is 10% and the confidence threshold
is 70%.
(a) Suppose we discretize the Age attribute into 3 equal-frequency intervals.
Find a pair of values for ?1 and ?2 that satisfy the minimum support
and minimum confidence requirements.
(b) Repeat part (a) by discretizing the Age attribute into 4 equal-frequency
intervals. Compare the extracted rules against the ones you had ob-
tained in part (a).
(c) Repeat part (a) by discretizing the Age attribute into 6 equal-frequency
intervals. Compare the extracted rules against the ones you had ob-
tained in part (a).
(d) From the results in part (a), (b), and (c), discuss how the choice of
discretization intervals will affect the rules extracted by association rule
mining algorithms.
Select the false statement.
a. All data items can eventually be reduced to a sequence of 0s and 1s. b. A binary digit (bit) can store two values simultaneously. c. It is cumbersome to work with data in bit form. d. It is easiest to produce electronic devices that can assume one of two stable states.
Answer the following statements true (T) or false (F)
1. Only one date can be selected at a time in the MonthCalendar control. 2. The Format property specifies the user’s selection options using the DateTimePickerFormat enumeration. 3. The DateTimePicker is limited to displaying up to a year’s selection at a time. 4. LinkLabels appear as Buttons that bring the user to another location. 5. Shortcuts to LinkLabels can also be created using the ampersand key (&) when the feature is enabled.
On a traditional IBM mainframe, a __________ is a single program or routine that has been loaded into memory and thus is available to run.
a. task b. process c. thread d. job step