Saturday 2:15 PM–3:00 PM in Theater

Moving Forward Through The Darkness

Chia-Chi Chang

Audience level:
Intermediate

Description

The blindness of modeling and how to break through. Training models from data is just like painting or capturing pictures from the world. From different angles, you will see the different pictures. The pictures are just the approximations of the world! So do the models! There must be some blindnesses behind the approximations. In this talk, we will point out several types of blindnesses in modeling procedures and introduce the solution of breaking through them.

Abstract

  • training models from data is just like painting pictures from the world.

  • from the real world problem to the machine learning problem

    • problem from e-commerce
    • problem from news platform
    • problem from online and offline retailers
    • problem from construction of trading strategies

  • modeling types and modeling procedures

  • the blindness in modeling procedures ? and how to break through the blindness ?

    • the blindness coming from problem

    • the blindness coming from data

      • using POS data to find potential users ?
      • "delicious" is not delicious ?

    • the blindness coming from coordinates of data

      • the blindness coming from mathematics? a story about 103 - 100 = 6 - 3 ?
      • the blindness coming from the methods converting making data to vector
      • probabilistic modeling, language modeling and infinite dimensional space

    • the blindness coming from frameworks of solvers (Supervised, Unsupervised, Semi-supervised)

      • new labels are coming all the way ?
      • when orange-apple binary classifier meet banana ?
      • the blindnesses of clustering methods
      • Semi-supervised learning and active learning

    • the blindness coming from algorithms and objective function of solvers

      • the blindness of k-means clustering

    • the blindness coming from parameters of solvers

      • how to control the weights of weighted classifier ?

  • How to control your model moving forward through the darkness ?

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