Measuring the seasonal variation in a time series, we generally use two methods to calculate seasonal indexes—average of original data, trend adjustment for average.

测定季节变动对时间序列的影响，一般按同期平均法（原资料平均法）和趋势剔除法计算季节比率。

youdao

The bottom line is that he see SAP as a direct play on the big data trend.

FORBES: SAP Is Morgan Stanley's New Best Idea; Bullish On HANA

While the majority of the industry is focused on devices and their integration, other are fast-forwarding this data trend.

FORBES: Data to Kill Death

We sat down with Rick to talk about the new project and the implications of the big data trend on the average citizens of the planet.

FORBES: The Human Face Of Big Data: An Interview With Rick Smolan