According to the top answer over 知乎 on the question 深度学习中 Batch Normalization为什么效果好?:

顾名思义,batch normalization嘛,就是“批规范化”咯。Google在ICML文中描述的非常清晰,在每次SGD时,通过mini-batch来对相应的activation做规范化操作,使得结果(输出信号各个维度)的均值为0,方差为1.

What does the 即 mean? Does this function as be? In this case, is it necessary to use 即, instead of 在每次SGD时, and also why is 即 preferred to other words that mean be, such as 是,为, etc...?

  • 即 here is short for 即是 (namely; that is to say; to be specific)
    – Tang Ho
    Aug 14, 2017 at 0:17
  • @TangHo Oh I see. Could you write it as your answer, possibly with some more explanation? Why is 即 usually preferred to 即是?
    – Blaszard
    Aug 14, 2017 at 0:19
  • = " i.e. " in English. Aug 16, 2017 at 9:02

2 Answers 2


即 itself can mean "equal". For example: '五人一伍' (Five men equal one unit)

~ you can replace 即 (equal) with 為(be), For example: '五人一伍' (Five men is one unit)

But 即 can be short for 即是 (namely; that is to say; to be specific)


[1. 軍隊將士兵分伍] [2. ] [3.每五人組成一個單位]

[1. Amy divides soldiers into 伍] [2. to be specific ] [3. Every five people become one unit]

[1. general statement] [2. to be specific] [3. detail description]

  • "即 itself can mean "equal" Can you provide the source of this claim? I'm quiet interested in this. Thanks.
    – coobit
    Aug 14, 2017 at 8:28
  • cantonese.sheik.co.uk/dictionary/characters/1055 - [2] [adv] namely; exactly; precisely. 'A 即 B' means 'A is exactly the same as B' -- '五人即一伍' means 'five men is precisely one unit'
    – Tang Ho
    Aug 14, 2017 at 8:33
  • As you can see, 即 contains a few meanings. some of them are extension of the basic meanings of " immediately(adv); approach(v)"
    – Tang Ho
    Aug 14, 2017 at 8:47
  • Thanks for the link. Yes I see that 即 varies between "is" and "like" so "equal" translation is a possibility for this hanzi.
    – coobit
    Aug 14, 2017 at 8:50

You can use a "be"(is/am/are/was/were) to help you to understand the "即"
It helps to display the same content(maybe is a explanation or a defination) of the front word/sentence(it depends the situation)

  • And “即” was often used to in writting . In the oral situation,it rarely use.Maybe when you give a seriously academic speech to use "即" after a term and then explain it or define it. Format: some term , 即details Aug 14, 2017 at 8:22

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