客观世界中人们会用区间数来描述不确定和不完备的信息，由此开展区间型的组合预测方法的研究很有意义。将区间数的左、右端点分别视作时间序列，以向量夹角余弦为准则，结合IOWHA信息集结算子，借鉴实数型组合预测的思想，将实际值区间数和变权系数组合预测值区间数的左、右端点序列分别建立最优组合预测模型，最后引入偏好系数转换成单目标最优组合预测模型而实现求解。%In the objective world people use interval number to describe the uncertain and incomplete informa -tion, the interval combination forecast method of study is very meaningful .The left and right endpoints of interval number separately as a time series , by the vector angle cosine and information IOWHA operator , draw lessons from the thought of combination forecast , respectively the optimal combination forecast model is set up to the actual value interval number and the variable weight coefficient combination forecast interval number sequence of the endpoint . Finally , the introduction of preference coefficients into a single objective to achieve the optimal combination forecas -ting model and be solved .
展开▼
