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本帖最后由 qq34545 于 2009-9-15 21:11 编辑
最近在用KeywordSpy分析关键词,有自己的ROI公式,看不明白意思 ,请老手翻译下。谢~
ROI refers to the profitability of an advertisement copy. It is an extrapolation computed by KeywordSpy to gauge how effective an ad is, based on its frequency of appearance in search engine listing.
ROI is computed as follows:
ROI= (Days Seen*Percentage Seen)/Number of Days Seen since Last Seen
Example: An ad copy for the keyword “Send Flowers...” was seen 15 days out of 20; the ad copy was seen 2 days ago
Number of Days Seen: 15 Percentage Seen: 15/20= 75% Number of Days since Last Seen: 2 Days
ROI = (15*75%)/2 = 5.6 |
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我没用过这个工具。我说下我的理解吧。
这个ROI是检测含有某个关键词的广告单元的效果的。依据是这个广告单元以Sponsored Links的身份在搜索引擎里出现的频繁性。
我们都知道,GG的广告会不会在搜索引擎里以Sponsored Links出现,是有一套算法的。这个ROI值就是衡量一个广告单元在搜索引擎里出现的几率的大小。
ROI=广告出现的天数*广告出现天数占整个总天数的百分比/上一次广告出现到现在的天数
举例来说,某个广告单元,关键 ...
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