Parameter estimation is the key in building up a model in time series analysis.
时序模型的参数估计是时序模型建模的核心。
Time slack also had effects on the estimation of present task duration.
未来时间充裕感的程度也会影响人们对当前任务的预测。
At the same time, the correlative estimation expressions are built.
同时，建立了相应的费用估算表达式。
At the same time, the correlative estimation expressions are built.
同时，建立了相应的费用估算表达式。
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