Itemset Utility List Calculator

This webpage provides a tool to calculate the utility list structure of an itemset in the context of high utility itemset mining. This tool is designed to be used as a tool for demonstrating the concept of utility list. For efficient implementations of high utility itemset mining algorithms, please see the SPMF software.

To use this webpage, you need to enter a transaction database with quantities in a text area and the unit price of each item in another text area. Then you need to enter an itemset in a text field. Then you need to click a button "Calculate utility list". At this moment, the utility list structure of that itemset will be displayed to you as a table.

Here is an example of a transaction database with quantities:

T1: A:2 B:3 C:1
T2: A:1 B:2 C:3 D:2
T3: A:3 B:1 C:2 D:1 E:2
T4: B:2 C:4 D:3 E:1
T5: A:2 C:3 D:2 E:3

Important: Make sure that the items in transactions are sorted (e.g. by alphabetical order A < B < C < D < E). This order will be used to create the utility-list.

Here is an example of the unit price of each item:

A: 5
B: 10
C: 8
D: 12
E: 15

Here is an example of an itemset:

A, C, E

Please enter your own inputs below and click the button to see the calculation.

Enter a transaction database with quantities:

Enter the unit price of each item:

Enter an itemset:

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Want to learn more about pattern mining? Check the Pattern Mining course and open-source SPMF software
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Philippe Fournier-Viger, 2023