---
sourceDocument: Xanadu ServiceNow AI Platform Administration
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/xanadu/platform-administration

 Release :

    - xanadu

ft:locale :

    - en-US

ft:publication_title :

    - Xanadu ServiceNow AI Platform Administration

ft:clusterId :

    - platadm

bundleId :

    - platadm

workflow :

    - Platform


---

# Zing matches derived words with stemming

# Zing matches derived words with stemming {#ariaid-title1}

* Release version: Xanadu
* 
* Updated August 1, 2024
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read

Convert any multiple-character search keyword to its stem form to find derived versions of the word.

Stemming removes a variety of common word inflections, such as plurals and past tense forms. Zing treats all words with a common stem as synonyms of the original search term. Stemming doesn't apply to searches involving
single-character words such as Chinese and Japanese pictograms.  
Zing uses the [Porter Stemming Algorithm](https://tartarus.org/martin/PorterStemmer/), which is most effective for English text, but supports stemming in these languages.

* English
* French
* German
{#stemming-matches-derived-words__ul_l1t_gwy_1z}

The stemming language determines how the system generates indexes of record data. The system only supports one stemming language at a time regardless of how many languages the instance supports. When you change the stemming
language, the system creates any new index entries based on the new language stemming rules, but doesn't regenerate any existing index records. You must manually regenerate indexes for tables you want to use the new stemming
language.
**Related concepts**   

* [Available search options](https://servicenow-prod.fluidtopics.net/YXLvLR59kI_DRCWicLOVWw "Zing offers users several search interfaces and search operators to conduct text searches.")
* [Global search finds records from multiple tables](https://servicenow-prod.fluidtopics.net/2bOiNrNnOg~tzsnBhO0tfg "Search multiple record types from a single search field.")
* [Zing generates search results in four phases](https://servicenow-prod.fluidtopics.net/I4v9owTFQI69LAd1QCDt6Q "Generate search results by dividing documents among shards, searching shard documents, scoring shard documents, and merging scores into an index.")
* [Zing filters search results with access controls](https://servicenow-prod.fluidtopics.net/ClO4ivYixkQWnXafYN3MuA "Zing filters search results to only display records the user can access.")
* [Zing computes document scores using three components](https://servicenow-prod.fluidtopics.net/MDC5irr1oMVYfPi~eobWAQ "The Zing search engine computes document scores based on the frequency, sequence, and weight of search terms in the document.")
* [Zing indexes words](https://servicenow-prod.fluidtopics.net/AB8NyACY6I7vgRVk1I020g "Index documents by dividing them into words. Depending on the languages your instance supports, a word may be a single character such as a Chinese or Japanese pictogram or a sequence of characters separated by spaces such as with Latin, Arabic, and Pinyin languages.")
* [Zing can include attachments in search results](https://servicenow-prod.fluidtopics.net/HKHetJGR~OH_SaAsHKC7cw "Search content from attachments on indexed tables. Display attachments for search results from the Knowledge [kb_knowledge] table.")
* [Zing removes stop words from queries](https://servicenow-prod.fluidtopics.net/bW0xB8UoGIAvpHhwGVq1hA "Remove common words from search queries that don't produce meaningful results.")
* [Zing can expand search results with synonyms](https://servicenow-prod.fluidtopics.net/IHMRIcjmC28_0vLgAJvnmA "Expand search results to include additional search terms.")
* [Zing displays search suggestions as users enter search terms](https://servicenow-prod.fluidtopics.net/qsQ4UBV2fIiEZnoAIS4aTw "Display possible search query completions as users enter search terms.")  
**Related reference**   

* [Features of Zing text indexing and search engine](https://servicenow-prod.fluidtopics.net/5tAYuwDuw~mJ502TnRGtew "Enable and configure Zing text indexing and search engine features.")
* [Installed with Zing](https://servicenow-prod.fluidtopics.net/AKxk5xTJr8QS7GonvtkqKw "Several types of components are installed with Zing.")