When emergency changes have to be made to systems, the system software may have to be modified before changes to the requirements have been approved. Suggest a model of a process for making these modifications that will ensure that the requirements document and the system implementation do not become inconsistent.
What will be an ideal response?
The following diagram shows a change process that may be used to maintain
consistency between the requirements document and the system. The process
should assign a priority to changes so that emergency changes are made but these
changes should then be given priority when it comes to making modifications to
the system requirements. The changed code should be an input to the final change
process but it may be the case that a better way of making the change can be found
when more time is available for analysis.
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Repeat part (c) for model M1 using the threshold t = 0.1. Which threshold do you prefer, t = 0.5 or t = 0.1? Are the results consistent with what you expect from the ROC curve?
You are asked to evaluate the performance of two classification models, M1
and M2. The test set you have chosen contains 26 binary attributes, labeled
as A through Z.
Table 5.5 shows the posterior probabilities obtained by applying the models to
the test set. (Only the posterior probabilities for the positive class are shown).
As this is a two-class problem, P(?)=1 ? P(+) and P(?|A, . . . , Z)=1 ?
P(+|A, . . . , Z). Assume that we are mostly interested in detecting instances
from the positive class
When aligning several GUI objects, the first object selected is the controlling object, and the other objects will be aligned with it.
Answer the following statement true (T) or false (F)