[原创]z-score?

[jwangying]

请教各位：计算z-score时，nord word 的出现频率包括该词所有词形的出现次数吗？
如：我要计算effect 与negative的搭配时的z值，是否应该包括将effects包括进去呢？

[本贴已被 xujiajin 于 2006年05月21日 14时55分49秒 编辑过]​

 

[刘语料]

Z-score有两种算法，一种是Berry-Rogghe的算法；一种是Tact软件提供的算法，前者不允许nord word 作为其自身搭配词，后者允许。

 

[hancunxin]

nord word or node word?

 

[刘语料]

it should be node word.

 

[动态语法]

回复：[原创]z-score?

1) Whether or not to take the lemma as the unit for calculation is actually a theoretical issue. Some people argue against treating different forms of the same word as the same, while most others don't make a distinction unless there are differenbt senses involved (e.g. hit=to hit, hit=a hit). In other words, you have to make a case yourself for whatever decision you make.

2) Have you read this thread:

http://www.corpus4u.com/forum_view.asp?forum_id=57&view_id=1038

 

[jwangying]

谢谢各位的指点。很高兴看到wordsmith 购买人数越来越接近50了！