Cog
由: SIL International
Cog 是一种使用词汇统计学和比较语言学技术来比较不同语言变体的工具，以确定它们之间的语言学关系。
当研究人员从不同的语言社区收集词汇列表时，Cog 可以用于自动比较这些词汇列表。
它旨在迭代使用：运行比较，分析结果，完善过程，再次运行比较，等等。
屏幕
- IPA-based segmentation: automatically splits words in to segments
- Syllabification: automatically marks syllables
- Stem identification: identifies prefixes and suffixes so that they can be ignored during comparison
- Word alignment: aligns segments between word pairs
- Sound correspondence identification: automatically identifies sound correspondences and the environments in which they occur
- Cognate identification: provides various methods for identifying cognates
- Lexical/phonetic similarity: calculates lexical/phonetic similarity for multiple language varieties
- Radial trees
- Dendrograms
- Network graphs
- Similarity matrices
- Geographical maps
