Configuring additional stop words, number of jobs, and default number of clusters

As an administrator, you can configure the proactive problem management settings to specify additional stop words for a language and number of jobs. You can also specify the number of clusters to be displayed in the heat map by default.

You can configure the machine learning settings to specify additional stop words for a language. You can include stop words such as location name, site names, company name that appears in the incident text but might not be useful for clustering. When a problem coordinator selects a specific language while defining a job, the default stop words and additional stop words uploaded here or at the time of job definition is used during job processing.

To configure additional stop words

1. In BMC Helix ITSM Insights, click the  icon.
   The Settings page is displayed.
2. Navigate to Settings > Proactive problem management >  Configure machine learning.
   The Configure Machine Learning page is displayed.

3. Select a language from the list. The language selected is used for processing incident data and stop words. 
   
   

   Important

   For this release, Russian and Korean languages are not supported.

4. For the supported languages, BMC Helix ITSM Insights has a default stop words library. 
   Stop words are commonly used words that add little meaning and will be filtered while processing. Example of stop words: a, an, the, and, it.
5. You can upload a text file that contains additional stop words for the selected language. 

6. Select a file. In the file, define each stop word on a new line. Every time you upload a new file, it overrides the old file and the stop words in the new file are used.

   View the use of % in stop words

   The following table describes the usage of % in stop words:

   Incident summary	Stop word	Description
   ITSMInsights is running low on memory	ITSM%	Removes the stop word ITSM and the characters following it.  In this case, ITSMInsights is removed from the resulting cluster label.
   ITSMInsights is running low on memory	%Ins%	Removes the stop word Ins and the characters preceding and following it. In this case, ITSMInsights is removed from the resulting cluster label.
   ITSMInsights is running low on memory	%Insights	Removes the stop word Insights and the characters preceding it. In this case, ITSMInsights is removed from the resulting cluster label.

   Important

   Stop words are case-sensitive. We recommend matching the case of your stop word with that of the word in the description that you want to remove.

   

7. Click Save.
   The stop words file is uploaded. 
   

To configure the maximum number of jobs

1. In BMC Helix ITSM Insights, click the  icon.
   The Settings page is displayed.
2. Navigate to Settings > Proactive problem management > Settings
3. Specify the maximum number of jobs per user.
   
4. Click Save.

To configure the default number of clusters in the heat map

Configure the number of clusters that you want to display in the heat map by default. You can specify any value between 5 and 50. You can use the Max number of clusters field in the heat map to increase or decrease the number of clusters.

1. Navigate to  > Proactive problem management > Settings.
   
   
   
2. In Default Cluster Counter, specify the number of clusters you want to display in the heat map by default.
3. Click Save.