Time and Ordering
分布式系统和传统的单机系统不同，彼此是通过网络而不是”主板”连接、消息通讯是不可靠的。因此如果没有任何同步机制，同一系统的成员之间无法确保时间戳的误差控制在某个范围内。这个基本条件的缺失，会给上层应用的设计带来很多的麻烦。比如，一个业务流程的两个阶段分别在两台机器上处理，而后在第三台机器上将处理记录
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Programming Language: New Types, Pattern Matching, Tail Recursion
Conceptual Ways to Build New TypesTo create a compound type, there are really only three essential building blocks. Any decent programming language pr
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EDA Summary
The main goals of EDA are:
Provide summary level insight into a data set
Uncover underlying patterns and structure in the data
Identify outliers, miss
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Model Training Tricks (2)
If you have unlimited data, unlimited memory, and unlimited time, then the advice is easy: train a huge model on all of your data for a really long ti
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Model Training Tricks (1)
Normalization12345678def get_dls(bs, size): dblock = DataBlock(blocks=(ImageBlock, CategoryBlock), get_items=get_image_files,
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Empathize Stage
Empathize Process
Get as close to the source of data as possible usually by interviewing the people involved
Identify the business problem
Obtain all
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Decision Thinking and Data Science Process
Between design thinking and the above mentioned process models there are several 1:1 relationships between stages. The other relationships are general
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