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Linear classifier: Example

  • Class: “interest” (as in interest rate)

  • Example features of a linear classifier

                        wi     ti                                              wi     ti

                     0.70 prime                                        −0.71 dlrs

                     0.67 rate                                           −0.35 world

                     0.63 interest                                     −0.33 sees

                     0.60 rates                                          −0.25 year

                     0.46 discount                                    −0.24 group

                     0.43 bundesbank                               −0.24 dlr

  • To classify, find dot product of feature vector and weights

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