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Mathematics Symbol
Today, when I was reading a paper on clustering federated learning, I saw a mathematical symbol. This symbol was a dot added to the union symbol, which made me a little confused, so I searched it, and there was a record of this article.
1. The style of symbols in the paper
2. Explanation
1. Questions to chatgpt
When writing federated learning pseudo-code, I encountered a symbol. This symbol is a union symbol but there is an extra dot on it. What is the name of this symbol and what is its function?
2. reply
This symbol is called "dot union symbol", and its English name is "dot union symbol". It is a symbol in mathematics that usually denotes the union of two sets, but excludes the intersection of two sets.
In federated learning, the dot-on-union notation is often used to denote the union of datasets from different parties, but excludes the intersection between them. This operation can protect data privacy while avoiding problems such as double counting and sample leakage.
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