Seok Mi Hong , Kyung Sook Jung , Tae Choong Chung

The KIPS Transactions:PartB , Vol. 10, No. 3, pp. 281-286, Jun. 2003
10.3745/KIPSTB.2003.10.3.281,   PDF Download:

Abstract

A large number of features are collected for problem solving in real life, but to utilize all the features collected would be difficult. It is not so easy to collect of correct data about all features. In case it takes advantage of all collected data to learn, complicated learning model is created and good performance result can´t get. Also exist inter-relationships or hierarchical relations among the features. We can reduce feature´s number analyzing relation among the features using heuristic knowledge or statistical method. Heuristic technique refers to learning through repetitive trial and errors and experience. Experts can approach to relevant problem domain through opinion collection process by experience. These properties can be utilized to reduce the number of feature used in learning. Experts generate a new feature (highly abstract) using raw data. This paper describes machine learning model that reduce the number of features used in learning using heuristic function and use abstracted feature by neural network´s input value. We have applied this model to the win/lose prediction in pro-baseball games. The result shows the model mixing two techniques not only reduces the complexity of the neural network model but also significantly improves the classification accuracy than when neural network and heuristic model are used separately.

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