how to adjust the minimum support in itemset mining?

[Mark]

I have another question. In frequent itemset mining, we need to set a parameter that is the minimum support threshold. how are we supposed to know how to set It?

[admin]

generally, if you set It too high you will find too many patterns while if you set It too low you may find millions of patterns and algorithms for itemset mining may become Very very slow.

So generally, a good approach Is to start with a high value and then decrease the minimum support threshold until you have enough patterns. What Is a good value depends on the datasets characteristics.

[Alva]

yes i always get that question when talking pattern mining. how to set these thresholds? It is a major issue in pattern mining