( 1. 中南大學(xué) 冶金科學(xué)與工程學(xué)院， 長沙 410083;
2. 廣西大學(xué) 數(shù)學(xué)系， 南寧 530004)
摘 要: 在事務(wù)拓?fù)淇臻g的基礎(chǔ)上，將灰色系統(tǒng)理論引入屬性集的關(guān)聯(lián)規(guī)則挖掘中， 提出了一種新的適用于鋁電解工業(yè)控制現(xiàn)場的灰關(guān)聯(lián)度挖掘框架， 并給出了基于該框架的灰關(guān)聯(lián)規(guī)則挖掘算法， 即Gray_CTL挖掘算法。 將算法分解為兩個小問題： 1）計(jì)算關(guān)于時間屬性的灰關(guān)聯(lián)度， 這是算法的核心； 2）挖掘灰關(guān)聯(lián)規(guī)則。 以電解槽的熱平衡數(shù)據(jù)挖掘?yàn)槔瑢δ畴娊獠垡粋€月的生產(chǎn)數(shù)據(jù)進(jìn)行分析后， 獲得的灰關(guān)聯(lián)規(guī)則說明該段時間內(nèi)分子比、 槽電壓等因素對溫度的影響程度較大。
關(guān)鍵字: 鋁電解； 數(shù)據(jù)挖掘； 灰關(guān)聯(lián)規(guī)則； 算子； Gray_CTL算法
in aluminum electrolysis control
LI Jie1, ZOU Zhong1
（ 1. College of Metallurgical Science and Engineering,
Central South University, Changsha 410083, China;
2. Department of Mathematics, Guangxi University,
Nanning 530004, China）
Abstract: The theory of gray system was brought into the mining of association rule about attribute sets, which based on the transaction topology space. Moreover, a new framework of mining using gray association degree was brought forward, and it can be used in aluminum electrolysis process control. The mining algorithm of gray association rule, viz. the mining algorithm of Gray_CTL, was described under the new framework. The algorithm was divided into two parts: the first is to calculate the gray association degree about time attribute and is the core of the algorithm; the second is to mine the gray association rule. An example of mining the gray association rule in the thermal equilibrium data was provided. After the analysis of production data coming from some electrolysis cell within a month, the obtained gray association rule indicates that the molecular ratio and cell voltage have greater effects on temperature of electrolyte than any other factors.
Key words: aluminum electrolysis; data mining; gray association rule; operator; Gray_CTL algorithms
