Apriori Algorithm

Data Mining

What is Data Mining?

Automatically searching large data to find patterns and trends that go beyond simple analysis.
Using sophisticated mathematical algorithms, artificial intelligence, statistical. analysis, and database systems to find patterns.
Predicts likely outcomes.

***Algorithms are the core of Data Mining***

Data Mining Algorithms

Apriori***

Linear Regression
Logistic Regression
K-means
SVMs
Random Forests
Matrix Factorization

The APRIORI ALGORITHM keeps track of the frequency of item in a database. These frequent items are then used to determine patterns in the large data. These databases contain transactions data. The apriori uses breadth-first search and Hash tree structures to count the frequency data items.

Apriori algorithm for Data Mining – made simple

Great Explanation of How Apriori works and What it is used for

lhttp://nikhilvithlani.blogspot.com/2012/03/apriori-algorithm-for-data-mining-made.html

How to Run the Apriori Algorithm in Java Using Blue J

STEP 1

Download Blue J which is a free Java Development Environment designed for. beginners, used by millions worldwide.
Dowload Link http://www.bluej.org/
Make sure to get the correct version for your OS that includes JDK
Next run the executable and install Blue J.

STEP 2

Once You have Blue J installed open Blue J and under Project select new Project and name it Apriori Algorithm.
Add a new class and name it Apriori.

STEP 3

Next open up the apriori class folder and select all the text and cut it.

STEP 4

Next we will get the source code from this link:
https://gist.github.com/monperrus/7157717
Copy and paste the Apriori.java code from the above link into your empty apriori class.
Make sure you copy all the code from line 1 to line 315.

STEP 5

Next download the chess.dat file and save it into your apriori algorithm folder that was created when we created the new project in BlueJ.
Next compile your code and run the program by right-clicking on your apriori class and clicking on the method void main(String[] args) and then click ok on the method call window pop up.
Your algorithm should get to work and compute hundreds of computations in a matter of seconds.
Scroll down to the writing in RED and it will give you information about your chess.dat file which contain rows with numbers. Each row represents a transaction