Write short notes on market based modelling.

Market based modelling :-

1. The market-basket model of data is used to describe a common form of many to many relationship between two kinds of objects.

2. On the one hand, we have items, and on the other we have baskets, sometimes called “transactions.”

3. Each basket consists of a set of items (an itemset), and usually we assume that the number of items in a basket is small or much smaller than the total number of items.

4. The number of baskets is usually assumed to be very large, bigger than what can fit in main memory.

5. The data is assumed to be represented in a file consisting of a sequence of baskets.