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Monday, January 16, 2006 

Oracle Data Mining JDeveloper Extension on OTN

Just out: Oracle Java Data Mining (OJDM) API, part of Oracle 10gR2 Data Mining , is now available as an extension for JDeveloper.

This is a brief description straight from the OTN site with instructions on how to get and install the JDeveloper extension:

This extension installs all the Java libraries necessary for developing advanced analytics applications using the JSR-73-compliant API in the JDeveloper environment. In addition to providing access to all the data mining functionality of ODM, OJDM makes developing advanced analytics applications easier by including support for both synchronous and asynchronous data mining tasks, such as model building, testing, and batch and real-time scoring. Models produced through the Java API are fully interoperable with the PL/SQL API as well as the Oracle Data Miner GUI.

Readings: Business intelligence, Data mining, Oracle analytics

What is the meaning of Banding in Data mining? We have some requirement to plot a graph based on a huge amount of data. So we need to downsample the data before plot. Is there anything available for this in ODM?

In data mining I have seen the word "banding" used in place of binning. In this case it means to group/bin/"band" a set of values and replace them by an identifier or bin number/label. This would help transform numeric variables with many distinct values into just a few that can then be plotter using bar graphs.

ODMr has support for sampling and binning of data. Try the Data/Transform/Sample and Data/Transform/Discritize wizards under the Data menu. Do the sampling first and then use the resulting view/table as input for the binning wizard.

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  • Marcos M. Campos: Development Manager for Oracle Data Mining Technologies. Previously Senior Scientist with Thinking Machines. Over the years I have been working on transforming databases into easy to use analytical servers.
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