Prioritize Search Results based on Boost in Lucene Index

This short post explains the use of boost property in Index definition to prioritize the search results. 


In Lucene Index, we have a property named boost of type Double which will help assign weightage to desired properties (that are part of fulltext/contains query)

Properties with high boost value will be displayed earlier in the search results.

Recently we had a query in the Community related to this subject to prioritize search term in URL to be first in the search results than the one found in properties like title/description. 

  • In AEM, URL/path to the resource is simply the node names. 
    • Node names are declared as property within the indexRules using special case identifier as  :nodename  and is already available OOTB in cqPageLucene(/oak:index/cqPageLucene)
  • Prerequisite for fulltext/contains query : We should make sure that we have two other properties named nodeScopeIndex and analyzed set to true (Both are of type "Boolean") 
  • For Prioritizing : Set boost with higher value for desired property. In this case, it is for nodeName compared to jcr:title/jcr:description 

Here is the respective thread in the Community, where I have shared sample fulltext query, index definition and results with screenshots for reference - https://experienceleaguecommunities.adobe.com/t5/adobe-experience-manager/searching-in-specific-order/m-p/421052

Comments

  1. shivaniwebdesigningNovember 26, 2024 at 12:50 AM

    "This is a great explanation of boosting in the Lucene index! Could you share examples of how this is implemented in real-world scenarios?"
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    ReplyDelete
  2. abhayNovember 26, 2024 at 12:55 AM

    This comment has been removed by the author.

    ReplyDelete
  3. amanNovember 26, 2024 at 12:56 AM

    "Does boosting have any limitations or drawbacks that developers should be aware of?"
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    ReplyDelete
  4. BhanuNovember 26, 2024 at 12:57 AM

    "Great insights! Are there any tools or plugins that help visualize boosted search results?"
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    ReplyDelete
  5. Techno worldsNovember 26, 2024 at 12:57 AM

    "Thank you for this post! Could you explain how boosting impacts relevance scoring?"
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    ReplyDelete
  6. gautamNovember 26, 2024 at 12:58 AM

    "This is exactly the information I needed for my project. Do you recommend any advanced techniques for fine-tuning boosts?"
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    ReplyDelete
  7. getindustrialproductsNovember 26, 2024 at 12:58 AM

    "Lucene's boosting feature sounds powerful. What are the best practices for setting boost values?"
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    ReplyDelete
  8. yashikawebdesigninghouseNovember 26, 2024 at 12:59 AM

    "A well-written blog! Can boosting be combined with other ranking algorithms for better results?"
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    ReplyDelete
  9. varshakushNovember 26, 2024 at 1:00 AM

    "I appreciate the clarity in your writing. Does boosting work effectively with multi-language search results?"
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    ReplyDelete
  10. TriptiNovember 26, 2024 at 1:00 AM

    "Great content! Are there any specific use cases where boosting is particularly effective?"
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    ReplyDelete
  11. SumitNovember 26, 2024 at 1:01 AM

    "Thanks for simplifying such a technical concept. How does boosting compare to query rewriting?"
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    ReplyDelete
  12. RahulNovember 26, 2024 at 1:01 AM

    Very useful read! Can we use boosting dynamically based on user behavior?"
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    ReplyDelete
  13. sheetalNovember 26, 2024 at 1:02 AM

    "Very well explained! Does boosting require frequent reindexing, or can it be updated in real-time?"
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  14. prachiNovember 26, 2024 at 1:03 AM

    "Thank you for sharing this! Can boosting improve search performance in an e-commerce context?"
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    ReplyDelete
  15. karishmaNovember 26, 2024 at 1:03 AM

    "Excellent write-up! What metrics would you use to measure the success of boosted search results?"
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    ReplyDelete
  16. somyaNovember 26, 2024 at 1:04 AM

    "I didn’t realize how impactful boosting could be. Does it work differently for structured vs. unstructured data?"
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  17. SHUBHAMNovember 26, 2024 at 1:06 AM

    "This is helpful! Could you elaborate on how boosting interacts with pagination in search results?"
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  18. muskanNovember 26, 2024 at 1:07 AM

    "Interesting post! How does Lucene handle conflicts when multiple boosts are applied?"
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