Page 330 - AI Ver 1.0 Class 10
P. 330

a.  Design a confusion matrix and explain all the four cases possible to check the performance of the table.
                     b.  Calculate the Accuracy and the Precision of the model based on the data collected by you.

                  2.  Festival time is approaching and a shopkeeper has planned to increase his sale of dry fruits and Mithai in his Sweet
                    Shop. What would you suggest him so that his perishable sweets which he make on daily basis should not be wasted
                    and he is able to achieve his target of earning a handsome profit at the end of the month?

              D.  Competency-based/Application-based questions:
                  1.  Choosing between Precision and Recall depends on the condition in which the model has been deployed. Justify the
                    statement.

                  2.  Most of the government schools are provided with mid-day meals. On any given day, the attendance of the students is
                    unpredictable. An AI model is made to predict the food to be prepared for each day. Calculate the accuracy, precision,
                    recall and F1 score from the given data.

                         Confusion Matrix                 Reality 0                      Reality 1
                           Prediction 0                      16                             19

                           Prediction 0                      12                             9




                              Lab                                                                        Subject Enrichment



                        1.  Explore the internet to find some scenarios related to natural disasters. Take any one out of them
                          and make prediction-reality comparison. Draw a confusion matrix for it to show prediction results.
                        2.  For the scenario in the above question, make evaluation through its parameters_ Accuracy, Precision
                          and Recall.
                        3.  Calculate the following measures for the given confusion matrix - Accuracy, Precision, Recall and F1
                          Score.
                               Confusion Matrix         True Positive           True Negative

                               Predictive Positive          100                      45

                               Predicted Negative            65                      320








              Answers

              Exercise (Section A)
              A.    1.  a   2.  a   3.  c    4.  c    5.  c     6.  c     7.  a    8.  b     9.  a   10.  b
              B.  1.  Accuracy             2.  falsely predicted   3.  high            4.  F-measure
                  5.  Model Evaluation     6.  unauthorized        7.  Reality         8.  True Positive
              C.  1.  False   2.  True   3.  True   4.  True   5.  False

              D.  1.  d      2.  c    3.  a     4.  b    5.  e



                        328   Touchpad Artificial Intelligence-X
   325   326   327   328   329   330   331   332   333   334   335