Settings can be configured for Lucene through the in the CMS through Advanced Settings' → 'Lucene Search Settings' menu option under the 'Settings' main menu of the Administration interface.
Following is a list of the available settings with an explanation of the purpose of each:
Setting | Purpose |
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Enabled | Turns Lucene on or off. |
Tick checkbox to use Lucene for the Product Search |
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| Is Disabled for Product |
When ticked, the Product.BoostSourceValue is used to determine the boost value for a product. Boost values are relative based on the range of BoostSourceValues, and are calculated as a value of 1 (no boost) to the maximum product boost. For a detailled explanation on product boosting, see Lucene Relevance Scoring And Boosting.
"Did you mean" suggestions will only be suggested for words entered by users that do not appear in any product information. This can reduce unwanted "did you mean" suggestions.
It is recommended that this flag be turned on.| Browse | Tick to disable Lucene when user is browsing products | ||
| Perform Partial Word Searches | Instructs the search engine to perform a partial word search. This can be useful if your customers often search for model numbers or product codes. For example, searching for "100" would return any product whose product code starts with "100", such as 100023, 1001112, 100TEST, etc.
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| Partial Word Search Type | From the drop down list, select the partial word search type to use. | ||
Enable Product Boost | Tick for the Product.BoostSourceValue to be used to determine the boost value for a product. Boost values are relative based on the range of BoostSourceValues, and are calculated as a value of 1 (no boost) to the maximum product boost. For a detailled explanation of product boosting, see Lucene Relevance Scoring And Boosting. | ||
Maximum Product Boost Value | The highest boost value assigned to a product. This value will be assigned to the product with the highest Product.BoostSourceValue. All other products will be assigned values in the range 1.0 to this value.
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Boost Source Value Minimum Threshold | If a product has a BoostSourceValue less than this value, the product will not be boosted.
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| Assign Boost Values by Rank | When selected, boost values assigned to products are done based on the rank of the product's BoostSourceValue, rather than the actual BoostSourceValue Checking this flag assigns boost values evenly from the lowest source value to the highest source value. If not ticked, the magnitude of the source value will impact the weighting of the boost value.
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| Product Boost Source Value Daily Calculation Time | |||
| Enable Boost Words |
When ticked, the indexer reads the "Boost words" table and will apply boost values to products containing certain words.
No Boost Condition Codes
| Negative Boost Condition Codes | |
Product Boost Source Calculation |
This flag determines the method for calculating the Boost Source Value for products, which is used to calculate the Product Boost value for each product.
Available options are:
- Times Sold - The number of times a product has been purchased online during the time scale
- Click Through - The number of times users has clicked on a product in the search results product list to see detail on the product. during the time scale
- Custom - Allows for Commerce Vision to implement custom procedures for calculating boost source values where required
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When the option is selected and the settings updated, the boost source values will be recalculated for all products. However, a full index rebuild is required before the updated boost source values will impact search engine rankings. |
The time scaled used to calculate the Boost Source Value for products, based on the "calculation" setting.
Available options are:
- 7 days
- 14 days
- 21 days
- 30 days
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| Product Boost Source Time Scale | |
| Enable Non-relevance Based Sort | |
| Partial Index Update | |
| Full Index Update | |
| Lucene Full Daily Index Start Time | |
| Regular Expression to Execute Product Code Match | If you want product codes to be searchable and they can have one or more spaces between characters, e.g., 'CV - 100', add the pattern so that Lucene correctly interprets it as a single code. Here are some helpful symbols: ^ : beginning of expression ( ) : groups multiple characters together [ ] : matches any character in the set a-z A-Z 0-9 : character sets. To include upper and lower case letters in a search, add both sets. + : matches one or more of preceding character \s : whitespace, e.g., space For the example 'CV - 100' (and other codes with this pattern), we would enter the regular expression: ^([a-zA-Z0-9])+(\s-\s) This allows any number of alphanumeric characters to precede the first space. There is no need to capture the rest of the string after the second space. |
| Spell Correct Unknown Words Only | "Did you mean" suggestions will only be suggested for words entered by users that do not appear in any product information. This can reduce unwanted "did you mean" suggestions. It is recommended that this flag be turned on. |
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