论文冠词的使用

冠词可以极好的划分场景，限定范围

例子1

1. In the standard HAS, inserting more I-frames can increase the number of segments and effectively improve the timeliness of bitrate switching, which is essential strategy of the short-segment HAS \cite{XXX}. Unfortunately, it will also significantly increase the streaming bandwidth overhead, particularly for high bitrates.

should be

2. In the standard HAS, inserting more I-frames can increase the number of segments and effectively improve the timeliness of bitrate switching, which is an essential strategy of the short-segment HAS \cite{XXX}. Unfortunately, it will also significantly increase the streaming bandwidth overhead, particularly for high bitrates.

In fact, better be

3. In the standard HAS, inserting more I-frames can increase the number of segments and effectively improve the timeliness of bitrate switching, which is the essential strategy of the short-segment HAS \cite{XXX}. Unfortunately, it will also significantly increase the streaming bandwidth overhead, particularly for high bitrates.

Above all:
“an” and “the” both work here, but they have quite different meanings. I decided to use “the” to reflect what I mean — this is a good example showing both articles are grammatically correct here but give quite different meanings (zero article however doesn’t work here, though).

例子2

the video bitrate request of the viewer u can be transcoded

should be

the video bitrate request of viewer u can be transcoded

viewer u：指的是观看者u（其中u已经对观看者进行了限定）
a viewer u：指的是多个观看者u中的其中一个（其中u有多个）
the viewer u：指的是多个观看者u中的特定一个（其中u有多个）

例子3

In this paper, we set sub-decision period as 0.5s.

should be

In this paper, we set the sub-decision period as 0.5s.

sub-decision period是指之前提到的那个，是一个特指

例子4

governor of province

对于全国来说

a governor of province
or
the governor of province

对于江苏省或者某个特定省的居民来说

governor of province

其只有一个省长，所以不错在“一个”或者“那个”的区分

不用冠词的场景

1. 专有名词、物质名词、抽象名词的名词前不用冠词
   eg： China，General secretary (有专门特指的，不会有歧义)
   eg：coal，cotton
   eg：Tom，May
2. 表示一类人或事物的复数名词前不用冠词
   eg：We are all students.
   3.有物主代词、指示代词、不定代词或名词所有格修饰的名词前不用冠词
   eg: His friend is a boy.
   eg：The habit of viewer u is difficulty.
   eg：To study in China is the best.
   eg：Mike’s school is over there.
   4.表示特别含义的名词前不用冠词
   eg： He usually has his supper at home. 通常他都在家里吃晚饭。
   5.家庭成员的名称、称呼或只有一个人担任的职务名词前不用冠词
   eg：Sir,please show me another one. 先生,请给我看另一个。
   6.与by连用的交通工具前不用冠词
   eg：by car乘汽车 by taxi 乘出租车
   7.两个相同或相对的名词构成的平行结构前不用冠词
   eg：day and night 日夜
   8.在有些词组中,有无冠词含义不同
   eg：school,bed…等为表示“处所”的名词,不是指具体地点,不用冠词