%0 Journal Article
%T Discussion of the Problem of Grey Forecast Model<br>灰色预测模型的问题讨论
%A Feng Lihua
%A <br>冯利华
%J 系统工程理论与实践
%D 1997
%I 
%X In accordance with analysis of various examples, this paper points out that so far as same primitive sequence is concerned, forecasting value of GM(1,1) enlarges when the calculating null point rises, and the second term of the new sequence decreases, and cumulative number increases. It is pointed out at the same time that these problems depend on the character of GM(1,1) itself.
%K grey model(1
%K 1)
%K calculating null point
%K sequence length
%K cumulative number
%K forecasting value<br>GM（1
%K 1）模型
%K 计算零点
%K 序列长度
%K 累加次数
%K 预测值
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=962324E222C1AC1D&jid=1D057D9E7CAD6BEE9FA97306E08E48D3&aid=EFBC659D987E459E423DF27A71C47652&yid=5370399DC954B911&vid=BCA2697F357F2001&iid=59906B3B2830C2C5&sid=F122871CC7EC92DC&eid=1F199509C0B6C4D6&journal_id=1000-6788&journal_name=系统工程理论与实践&referenced_num=29&reference_num=0