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Machine learning model to predict the best candidate



2019 Community Moderator ElectionMachine Learning algorithm to predict an outcome where output is not knownModel building with neural networksUsing neural networks for classification in Hierarchical datawhat is the best approach to my prediction problemSupervised learning for variable length feature-less dataDeep advantage learning: how to predict the valueTraining of Region Proposal Network (RPN)Training a LSTM/any other deep learning model with temporal as well as non temporal attributesStructure the dataset for financial machine learningHow to choose best model checkpoint when training deep learning model on all the data?










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I have several training examples, each of which consists of a set of candidates and a label that tells which one of those candidates is the best in that set.



The number of candidates in every set may be different. The set of candidates is unordered. In my current problem, each candidate is represented by a fixed length feature vector. However in future, the number of features describing each candidate may also be different for every candidate.



I would like to build a machine learning model that can predict the best candidate from any given set. What could be a good architecture for such a model?



One approach I tried was a simple MLP that takes one candidate as input and outputs whether or not the candidate is best. But since this MLP wouldn't know which set the candidate belongs to, it fails in situations where a candidate is the best in one set but the same candidate is not the best in another set.



To get a little bit more specific, in my current problem, each candidate is a 2D polyline with a fixed number of line segments. Labelling on the training examples is being done manually to pick the most 'good' looking polyline in a given set of polylines. Each polyline is being described by an array of (x,y) coordinates. Currently each of my polylines contains a fixed number of segments. But in future I may have to support polylines of varying number of segments.



In future, I would also like to extend this to 3D polyhedrons too, but I don't know how to even build a feature vector to describe for 3D polyhedron yet. I guess that's a problem for another day.










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    0












    $begingroup$


    I have several training examples, each of which consists of a set of candidates and a label that tells which one of those candidates is the best in that set.



    The number of candidates in every set may be different. The set of candidates is unordered. In my current problem, each candidate is represented by a fixed length feature vector. However in future, the number of features describing each candidate may also be different for every candidate.



    I would like to build a machine learning model that can predict the best candidate from any given set. What could be a good architecture for such a model?



    One approach I tried was a simple MLP that takes one candidate as input and outputs whether or not the candidate is best. But since this MLP wouldn't know which set the candidate belongs to, it fails in situations where a candidate is the best in one set but the same candidate is not the best in another set.



    To get a little bit more specific, in my current problem, each candidate is a 2D polyline with a fixed number of line segments. Labelling on the training examples is being done manually to pick the most 'good' looking polyline in a given set of polylines. Each polyline is being described by an array of (x,y) coordinates. Currently each of my polylines contains a fixed number of segments. But in future I may have to support polylines of varying number of segments.



    In future, I would also like to extend this to 3D polyhedrons too, but I don't know how to even build a feature vector to describe for 3D polyhedron yet. I guess that's a problem for another day.










    share|improve this question









    New contributor




    Mak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.







    $endgroup$














      0












      0








      0





      $begingroup$


      I have several training examples, each of which consists of a set of candidates and a label that tells which one of those candidates is the best in that set.



      The number of candidates in every set may be different. The set of candidates is unordered. In my current problem, each candidate is represented by a fixed length feature vector. However in future, the number of features describing each candidate may also be different for every candidate.



      I would like to build a machine learning model that can predict the best candidate from any given set. What could be a good architecture for such a model?



      One approach I tried was a simple MLP that takes one candidate as input and outputs whether or not the candidate is best. But since this MLP wouldn't know which set the candidate belongs to, it fails in situations where a candidate is the best in one set but the same candidate is not the best in another set.



      To get a little bit more specific, in my current problem, each candidate is a 2D polyline with a fixed number of line segments. Labelling on the training examples is being done manually to pick the most 'good' looking polyline in a given set of polylines. Each polyline is being described by an array of (x,y) coordinates. Currently each of my polylines contains a fixed number of segments. But in future I may have to support polylines of varying number of segments.



      In future, I would also like to extend this to 3D polyhedrons too, but I don't know how to even build a feature vector to describe for 3D polyhedron yet. I guess that's a problem for another day.










      share|improve this question









      New contributor




      Mak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.







      $endgroup$




      I have several training examples, each of which consists of a set of candidates and a label that tells which one of those candidates is the best in that set.



      The number of candidates in every set may be different. The set of candidates is unordered. In my current problem, each candidate is represented by a fixed length feature vector. However in future, the number of features describing each candidate may also be different for every candidate.



      I would like to build a machine learning model that can predict the best candidate from any given set. What could be a good architecture for such a model?



      One approach I tried was a simple MLP that takes one candidate as input and outputs whether or not the candidate is best. But since this MLP wouldn't know which set the candidate belongs to, it fails in situations where a candidate is the best in one set but the same candidate is not the best in another set.



      To get a little bit more specific, in my current problem, each candidate is a 2D polyline with a fixed number of line segments. Labelling on the training examples is being done manually to pick the most 'good' looking polyline in a given set of polylines. Each polyline is being described by an array of (x,y) coordinates. Currently each of my polylines contains a fixed number of segments. But in future I may have to support polylines of varying number of segments.



      In future, I would also like to extend this to 3D polyhedrons too, but I don't know how to even build a feature vector to describe for 3D polyhedron yet. I guess that's a problem for another day.







      machine-learning neural-network prediction machine-learning-model






      share|improve this question









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      Check out our Code of Conduct.











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      Mak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      edited 10 mins ago







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      asked 29 mins ago









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