Problem Note 44915: Models built using Bagging or Boosting in group processing produce incorrect probabilities
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To build bagged models in SAS® Enterprise Miner™, you must set the Mode property to Bagging in the Start Groups node. You can then modify the Index Count (default=10), which controls the number of models that are used in bagging. However, if you run the flow with an Index Count value that is greater than 2, then SAS Enterprise Miner incorrectly combines the predicted probabilities.
You can also build boosted models by setting the Mode property to Boosting. However, the predicted probabilities might be incorrect.
There are no error or warning messages to indicate a problem.
There is no workaround.
Operating System and Release Information
| Product Family | Product | System | Product Release | SAS Release | ||
| Reported | Fixed* | Reported | Fixed* | |||
| SAS System | SAS Enterprise Miner | Microsoft Windows Server 2003 Standard Edition | 6.1 | 7.1_M1 | 9.2 TS2M0 | 9.3 TS1M1 |
| Microsoft Windows Server 2003 Enterprise Edition | 6.1 | 7.1_M1 | 9.2 TS2M0 | 9.3 TS1M1 | ||
| Microsoft Windows Server 2003 Datacenter Edition | 6.1 | 7.1_M1 | 9.2 TS2M0 | 9.3 TS1M1 | ||
| Microsoft® Windows® for x64 | 6.1 | 7.1_M1 | 9.2 TS2M0 | 9.3 TS1M1 | ||
| Microsoft Windows XP 64-bit Edition | 6.1 | 7.1_M1 | 9.2 TS2M0 | 9.3 TS1M1 | ||
| Microsoft Windows Server 2003 Enterprise 64-bit Edition | 6.1 | 7.1_M1 | 9.2 TS2M0 | 9.3 TS1M1 | ||
| Microsoft Windows Server 2003 Datacenter 64-bit Edition | 6.1 | 7.1_M1 | 9.2 TS2M0 | 9.3 TS1M1 | ||
| Microsoft® Windows® for 64-Bit Itanium-based Systems | 6.1 | 7.1_M1 | 9.2 TS2M0 | 9.3 TS1M1 | ||
| Microsoft Windows Server 2003 for x64 | 6.1 | 7.1_M1 | 9.2 TS2M0 | 9.3 TS1M1 | ||
| Microsoft Windows Server 2008 for x64 | 6.1 | 7.1_M1 | 9.2 TS2M0 | 9.3 TS1M1 | ||
| Microsoft Windows XP Professional | 6.1 | 7.1_M1 | 9.2 TS2M0 | 9.3 TS1M1 | ||
| Windows Vista | 6.1 | 7.1_M1 | 9.2 TS2M0 | 9.3 TS1M1 | ||
| Windows Vista for x64 | 6.1 | 7.1_M1 | 9.2 TS2M0 | 9.3 TS1M1 | ||
| 64-bit Enabled AIX | 6.1 | 7.1_M1 | 9.2 TS2M0 | 9.3 TS1M1 | ||
| 64-bit Enabled HP-UX | 6.1 | 7.1_M1 | 9.2 TS2M0 | 9.3 TS1M1 | ||
| 64-bit Enabled Solaris | 6.1 | 7.1_M1 | 9.2 TS2M0 | 9.3 TS1M1 | ||
| HP-UX IPF | 6.1 | 7.1_M1 | 9.2 TS2M0 | 9.3 TS1M1 | ||
| Linux | 6.1 | 7.1_M1 | 9.2 TS2M0 | 9.3 TS1M1 | ||
| Linux for x64 | 6.1 | 7.1_M1 | 9.2 TS2M0 | 9.3 TS1M1 | ||
| Solaris for x64 | 6.1 | 7.1_M1 | 9.2 TS2M0 | 9.3 TS1M1 | ||
| Type: | Problem Note |
| Priority: | alert |
| Date Modified: | 2013-02-22 14:37:18 |
| Date Created: | 2011-11-18 11:06:55 |