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Is filtering a dataset still a good option if the dataset is very small?



2019 Community Moderator ElectionWhat is the meaning of spherical dataset?How should classification be done for a very small data set?Prediction questions related to the datasetIf an NMT dataset is artificially enlarged by splitting sequences up, should it still train for the same number of epochs?Good dataset for sentiment Analysis in Tickets for IT SupportDownsampling the dataset to create balanced dataset for neural modelsPrediction interval for very small datasetStructure the dataset for financial machine learningBest CNN architecture for binary classification of small images with a massive datasetHow to get the marker locations in the LINEMOD dataset?










0












$begingroup$


Suppose I have a data set as follow:



var1 var2 ... varN test1 test2
x x ... x good v.good
x x ... x good bad
x x ... x meh bad
x x ... x good good
x x ... x v.bad bad
x x ... x bad bad
x x ... x meh good
x x ... x good good
x x ... x v.bad good
x x ... x good bad


test2 is a more sophisticated version of test1, I want to know what makes my test2 bad if my test1 has the value good. For that, I filtered this data to only include rows where test1 has the value good.
My dataset becomes:



var1 var2 ... varN test1 test2 Y
x x ... x good v.good 1
x x ... x good bad 0
x x ... x good bad 0
x x ... x good good 1
x x ... x good good 1
x x ... x good bad 0


I did this since it will allow me to know exactly what changes in var1, ..., varN makes the test go from good to bad when using logistic regression or some heuristic approach.



My question is: Does this still hold if we have, per say, a dataset of 100 observation and that filtration slices it in half?










share|improve this question









$endgroup$
















    0












    $begingroup$


    Suppose I have a data set as follow:



    var1 var2 ... varN test1 test2
    x x ... x good v.good
    x x ... x good bad
    x x ... x meh bad
    x x ... x good good
    x x ... x v.bad bad
    x x ... x bad bad
    x x ... x meh good
    x x ... x good good
    x x ... x v.bad good
    x x ... x good bad


    test2 is a more sophisticated version of test1, I want to know what makes my test2 bad if my test1 has the value good. For that, I filtered this data to only include rows where test1 has the value good.
    My dataset becomes:



    var1 var2 ... varN test1 test2 Y
    x x ... x good v.good 1
    x x ... x good bad 0
    x x ... x good bad 0
    x x ... x good good 1
    x x ... x good good 1
    x x ... x good bad 0


    I did this since it will allow me to know exactly what changes in var1, ..., varN makes the test go from good to bad when using logistic regression or some heuristic approach.



    My question is: Does this still hold if we have, per say, a dataset of 100 observation and that filtration slices it in half?










    share|improve this question









    $endgroup$














      0












      0








      0





      $begingroup$


      Suppose I have a data set as follow:



      var1 var2 ... varN test1 test2
      x x ... x good v.good
      x x ... x good bad
      x x ... x meh bad
      x x ... x good good
      x x ... x v.bad bad
      x x ... x bad bad
      x x ... x meh good
      x x ... x good good
      x x ... x v.bad good
      x x ... x good bad


      test2 is a more sophisticated version of test1, I want to know what makes my test2 bad if my test1 has the value good. For that, I filtered this data to only include rows where test1 has the value good.
      My dataset becomes:



      var1 var2 ... varN test1 test2 Y
      x x ... x good v.good 1
      x x ... x good bad 0
      x x ... x good bad 0
      x x ... x good good 1
      x x ... x good good 1
      x x ... x good bad 0


      I did this since it will allow me to know exactly what changes in var1, ..., varN makes the test go from good to bad when using logistic regression or some heuristic approach.



      My question is: Does this still hold if we have, per say, a dataset of 100 observation and that filtration slices it in half?










      share|improve this question









      $endgroup$




      Suppose I have a data set as follow:



      var1 var2 ... varN test1 test2
      x x ... x good v.good
      x x ... x good bad
      x x ... x meh bad
      x x ... x good good
      x x ... x v.bad bad
      x x ... x bad bad
      x x ... x meh good
      x x ... x good good
      x x ... x v.bad good
      x x ... x good bad


      test2 is a more sophisticated version of test1, I want to know what makes my test2 bad if my test1 has the value good. For that, I filtered this data to only include rows where test1 has the value good.
      My dataset becomes:



      var1 var2 ... varN test1 test2 Y
      x x ... x good v.good 1
      x x ... x good bad 0
      x x ... x good bad 0
      x x ... x good good 1
      x x ... x good good 1
      x x ... x good bad 0


      I did this since it will allow me to know exactly what changes in var1, ..., varN makes the test go from good to bad when using logistic regression or some heuristic approach.



      My question is: Does this still hold if we have, per say, a dataset of 100 observation and that filtration slices it in half?







      dataset feature-engineering feature-construction






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Mar 26 at 17:08









      Mohamed NidabdellaMohamed Nidabdella

      11




      11




















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