Binary Coding SVMs for the Multiclass Problem of Blast Furnace System

It poses a great challenge to control the blast furnace system, often meaning to control the components of the hot metal within acceptable boundary, such as the silicon content in hot metal. For this reason, this paper focuses on addressing the multiclass classification problem about the silicon cha...

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Bibliographic Details
Published in:IEEE transactions on industrial electronics (1982) Vol. 60; no. 9; pp. 3846 - 3856
Main Authors: Jian, Ling, Gao, Chuanhou
Format: Journal Article
Language:English
Published: New York IEEE 01.09.2013
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Ascent
Binary codes
Binary coding support vector machines (SVMs)
blast furnace
Blast furnaces
Classification
Confidence intervals
Control systems
Decoding
Encoding
Furnaces
Metals
multiclass classification
Predictive models
probability output
Silicon
silicon content in hot metal
Steel industry
Support vector machines
Training
ISSN:0278-0046, 1557-9948
Online Access:Get full text
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Summary:It poses a great challenge to control the blast furnace system, often meaning to control the components of the hot metal within acceptable boundary, such as the silicon content in hot metal. For this reason, this paper focuses on addressing the multiclass classification problem about the silicon change in hope of providing reasonable blast furnace control guidance. Through the proposed binary coding support vector machine (SVM) algorithm, a four-class problem, i.e., sharp descent, slight descent, sharp ascent, and slight ascent of the silicon content in hot metal, is reduced into two binary classification problems to solve. To heel, the confidence level about these classification results is also estimated. Reliable classification effect plus very few binary classifiers make the binary coding SVMs full of competitive power for practical applications, particularly when the confidence level is high. The four-class classification results can indicate not only the silicon change direction but also the rough silicon change amplitude, which can guide the blast furnace operators to determine the blast furnace control span together with the control direction in advance.
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ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2012.2206336