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Try It Out                                                                   #Problem Solving


              Let us understand reinforcement learning with the help of an example. A child needs to walk from
              location A to B. If he/she takes the right steps towards location B. he/she will get a reward in the form
              of appreciation, but if his/her steps are not in the right direction (towards point B), he will be lost
              (punishment). On the basis of these reward and punishment, he/she takes a decision on his/her next
              step.
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                          Flashback Time


                    ¨  Data science is a field that used to extract useful information from data.
                    ¨  There are many sources of data, like online shopping, billing, ticket booking, social media, etc.
                    ¨  The  various  components  of  data  science  are  data  availability,  data  filtering,  data
                       transformation, science, mathematics, and machine learning.
                    ¨  There are many careers in data science, like Data Scientist, Data Engineer, Data Architect, and
                       Senior Data Scientist.
                    ¨  In clustering, groups are formed on the basis of features’ similarities.
                    ¨  Reinforcement learning as a type of machine learning is based on rewards and punishment.




                      Knowledge Check




              A.     Mark the correct response.

                     1.  A huge amount of complicated data is called __________.               OMR Sheet
                          a. Data IOT                     b. Big data                          Use only blue/black ball
                                                                                               pen to fill the circles. It
                          c. Data                         d. Data Source                       should   be   darkened
                                                                                               completely and properly.
                     2.  ___________ have the responsibility of handling large amount          Wrong methods
                          of structured and unstructured data.
                                                                                               Correct method
                          a. Software Engineer            b. Data Scientists
                          c. Manager                      d. None of these
                                                                                               1.   a   b    c    d
                     3.  The  number  of  classes  in  the  binary  classification  should  be
                          ___________.
                                                                                               2.   a   b    c    d
                          a. Two                          b. Three
                                                                                               3.   a   b    c    d
                          c. Four                         d. Five


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