Frequent Item –
Frequent item means that a group of items that all are related and frequently with each others. Frequent item is a study about a set of patterns that are frequent with each other.
It was first introduced by scientist agrwal Imielinski and swami. It is aim to find a frequent items from large data set for future outcomes means that what items are purchased together from shop. Example- Milk and Bread are frequently purchased item from large data set from customer.
Why Frequent Pattern is important-
It is simplest technique to find frequent items from large data set. In that mainly used association rule for finding frequent items mostly.
| Tid | Product |
| 10 | Butter, Nuts, Bread, Milk |
| 20 | Butter, Coffee, Chips |
| 30 | Milk, Bread |
| 40 | Nuts, Milk, Butter, Bread |
| 50 | Nuts, Coffee, Milk |
In diagram shows that customer buy both items from shop. In frequent items find that items and future outcomes predict from that.
Frequent Pattern Mining uses-
- Frequent item set mining rule and association rule
- Frequent sequence mining
- Frequent tree mining
- Frequent graph mining
Application Areas of frequent pattern mining include-
- Market Basket Analysis
- Click Stream Analysis
- Web Link Analysis
- Molecular frequent Mining