When you finish writing the abstract class, what must the subclasses do to use it?
A. reference the abstract class in their __init__ method.
B. copy the code to the subclass file
C. nothing, the abstract class is automatically included in the subclass
D. import the abstract class
Answer: D
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Association analysis can be used to find anomalies as follows. Find strong as- sociation patterns, which involve some minimum number of objects. Anoma- lies are those objects that do not belong to any such patterns. To make this more concrete, we note that the hyperclique association pattern discussed in Section 6.8 is particularly suitable for such an approach. Specifically, given a user-selected h-confidence level, maximal hyperclique patterns of objects are found. All objects that do not appear in a maximal hyperclique pattern of at least size three are classified as outliers.
(a) Does this technique fall into any of the categories discussed in this chapter? If so, which one? (b) Name one potential strength and one potential weakness of this ap- proach.
You can resize any placeholder by using its sizing ____________________.
Fill in the blank(s) with the appropriate word(s).
The O_APPEND flag is used to prevent
A. data loss B. data duplication
____________________, also called graphs, are visual representations of numeric data that help users see comparisons, patterns, and trends in data.
Fill in the blank(s) with the appropriate word(s).