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At run time, Content Analytics finds alternative search terms by using dictionary lookup, regular expressions, or keywords that are defined directly in the rule. To specify what type to use at run time for the matching rule, select one of the pattern body types as shown in Figure 12-19. 

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3. If you select Keyword term in the previous step, enter the keywords for matching. 

4. If you select Dictionary term in the previous step, select the dictionary for synonyms and abbreviation lookup. 

In the Rules to Tune Queries and Results pane (Figure 12-16 on page 467), the Dictionary Configuration pane lists the dictionaries that are available for query expansion. Each term that is listed in a dictionary is associated with a number of synonyms, abbreviations, or acronyms. Each dictionary entry that appears in the search query is supplemented by all the aliases for that entry. 

The dictionary lookup also determines the expansion values. 

Figure 12-20 shows the panel where you create a dictionary. Within the panel, you can add a word and its alias. 

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5. If you select Regular expression term from the previous step (in Figure 12-19), enter the regular expression term for the matching rule. The rule attempts to make a match according to the defined regular expression. If a match is made, the expansion rule is fired. 

