The consistency of empirical comparisons of regression and analogy-based software project cost prediction
The consistency of empirical comparisons of regression and analogy-based software project cost prediction
复制标题
回归与类比软件项目成本预测实证比较的一致性
DOI：
10.1109/isese.2005.1541858
复制
发表时间：
2005
期刊：
影响因子：
--
通讯作者：
M. Shepperd
中科院分区：
文献类型：
--
作者：
C. Mair;M. Shepperd
目的是确定软件工程成本估算实证研究结果内部和之间的一致性。我们重点关注常用的回归和类比技术。我们使用预定义的纳入和排除标准进行了详尽的文献检索，并确定了 67 篇期刊论文和 104 篇会议论文。从这个样本中，我们确定了使用这两种方法的 11 篇期刊论文和 9 篇会议论文。我们的分析发现，大约 25% 的研究内部没有结论。我们还发现，支持和反对基于类比的方法的证据大致相同。我们确认研究结果缺乏一致性，并认为 20 项不同研究比较回归和类比的不一致模式有些令人不安。这表明我们需要提出更详细的问题，而不仅仅是“什么是最好的预测系统？”。
The objective is to determine the consistency within and between results in empirical studies of software engineering cost estimation. We focus on regression and analogy techniques as these are commonly used. We conducted an exhaustive literature search using predefined inclusion and exclusion criteria and identified 67 journal papers and 104 conference papers. From this sample we identified 11 journal papers and 9 conference papers that used both methods. Our analysis found that about 25% of studies were internally inconclusive. We also found that there is approximately equal evidence in favour of, and against analogy-based methods. We confirm the lack of consistency in the findings and argue that this inconsistent pattern from 20 different studies comparing regression and analogy is somewhat disturbing. It suggests that we need to ask more detailed questions than just: "What is the best prediction system?".