Introducing the concept of random forecast, we propose to adopt a combined indicator, which is more reasonable for estimating the quality of the proton-event forecast.
并在引入了随机预报的概念之后，推导出判别预报水平高低的一种较合理的总指标公式。
Shanghai stock composite index is treated as a random variable to carry on the forecast and makes the real diagnosis analysis.
将上证综合指数当作一个随机变量进行预测，并作了实证分析。
Random and volatile data of road traffic accidents show poor fitness and low accuracy if forecast by means of the traditional grey model GM (1, 1).
采用传统灰色GM(1,1)模型预测道路交通事故这类随机性、波动性较大的数据，存在拟合较差、精度不足等问题。
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