时空数据的定义：

1. 坐标点
2. 时间戳
3. 事件日志

这篇文章先从Data收集方面探讨了时空数据的收集方式。

1. 视觉追踪系统
2. 仪表追踪方法
   2.1 GPS
   2.2 RFID

方法：

1. 场地分割
2. 网络理论
3. 数据挖掘方法与应用
4. 可视化技术

整理一些词组和不错的句子。

word

1. extract insight
2. Furthermore, ...
3. in the sense that.. 就这种意义而言
4. argue that

Sentence

1. However they are complementary in that they describe different aspects of play, and can provide a richer explanation of the game when used in combination.

• However后不必一定加逗号
• in that 表示"在于"
• and连接两个长句子，and前加一个逗号，条理性更清楚。
• when used in combination 可以省略主语和be动词。

2. This is often the case in sports.
3. However, their analysis, while innovative, did not attract much attention.

• while innovative做插入语，省略主语和be动词。

4. From a team performance perspective Grund set out to answer two hypotheses:

• From a team performance perspective后面不必非得加逗号。

5. The higher coefficient for a player the higher is his cooperation with the other members of the team.

• The 比较级... the 比较级...第二个比较级的句子用倒桩。

6. They were extremely well connected teams.

• 连续用两个副词 extremely， well 来修饰 connected。

7. Section 4 are informative in isolation, but may also be the input for more complex algorithmic and probabilistic analysis of team sports.

• 注意informative的含义；but may also be中 可以省略主语！显得更精炼。