Advanced Search with Elasticsearch
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We are going to deep into the search logic of the Oro Commerce, see what are the common features and requirements, and how to implement them using Elasticsearch. We will cover search boosting, synonym management, fuzzy search, and discuss an overall approach for search customization.
![www.oroinc.com
Relevance Boost: Implementation
"should": [
{
"match": {
"sku.analyzed": {
"query": "lamp",
"operator": "or",
"boost": 5
}
}
},
{
"match": {
"sku.analyzed_exact_match": {
"query": "lamp",
"operator": "or",
"boost": 50
}
}
}
]
Multi-鍖elds >>
Di鍖erent analyzers >>
Boolean query >>](https://image.slidesharecdn.com/advancedsearchwithelasticsearch-220630145553-02ad7c30/85/Advanced-Search-with-Elasticsearch-7-320.jpg)
![www.oroinc.com
Synonyms: Implementation
Search analyzer
Synonym 鍖lter >>
Refresh index settings >>
Direction of replacement
"filter": {
"synonym": {
"type": "synonym_graph",
"synonyms": [
"light, 磺于仂",
"cabinet, 从仂仄仂亟"
]
},
"wordsplit_lowercase_synonym": {
"type": "multiplexer",
"filters": [
"wordsplit, lowercase",
"lowercase, synonym"
]
}
},
"analyzer": {
"fulltext_search_analyzer": {
"filter": [
"wordsplit_lowercase_synonym",
"unique"
],
"tokenizer": "whitespace"
}
}](https://image.slidesharecdn.com/advancedsearchwithelasticsearch-220630145553-02ad7c30/85/Advanced-Search-with-Elasticsearch-11-320.jpg)
Advanced Search with Elasticsearch
- 1. 1 www.oroinc.com Oro Tech Talks: Advanced Search with Elasticsearch
- 2. www.oroinc.com About Me Yevhen Shyshkin 10+ years experience in E-Commerce development Architectural Advisor Project Lead Technical Trainer Search Component Lead twitter.com/yshyshkin github.com/yshyshkin aspirationandadvisory.com
- 3. www.oroinc.com What is Advanced Search? Make results more relevant Discover user preferences Improve user experience Tolerate errors and typos And your any other wish
- 4. www.oroinc.com Elasticsearch: Advanced Search Tool Search engine based on Lucene NoSQL DBMS Extensive search capabilities Software and hardware tuning Cluster support Good for Big Data Multiple clients: Java, C#, PHP, Python
- 5. www.oroinc.com Elasticsearch in OroCommerce Relevance boost Synonyms Error-tolerance Search 鍖ne tuning Autocomplete Faceted search Customization +
- 6. www.oroinc.com Relevance Boost: Theory Full-text search Search score (rating) Default sorting Show relevant result 鍖rst Boost increases score Promote speci鍖c results
- 7. www.oroinc.com Relevance Boost: Implementation "should": [ { "match": { "sku.analyzed": { "query": "lamp", "operator": "or", "boost": 5 } } }, { "match": { "sku.analyzed_exact_match": { "query": "lamp", "operator": "or", "boost": 50 } } } ] Multi-鍖elds >> Di鍖erent analyzers >> Boolean query >>
- 8. www.oroinc.com Relevance Boost: Examples Boost by exact match >> Boost by entity name >> Boost by product attributes >> Boost by customer history >> How to use them together
- 9. www.oroinc.com Relevance Boost: Whats next? Customer segment preferences Machine learning Pricing Inventory Reviews
- 11. www.oroinc.com Synonyms: Implementation Search analyzer Synonym 鍖lter >> Refresh index settings >> Direction of replacement "filter": { "synonym": { "type": "synonym_graph", "synonyms": [ "light, 磺于仂", "cabinet, 从仂仄仂亟" ] }, "wordsplit_lowercase_synonym": { "type": "multiplexer", "filters": [ "wordsplit, lowercase", "lowercase, synonym" ] } }, "analyzer": { "fulltext_search_analyzer": { "filter": [ "wordsplit_lowercase_synonym", "unique" ], "tokenizer": "whitespace" } }
- 12. www.oroinc.com Synonyms: Examples Bidirectional synonyms Unidirectional synonyms Regular abbreviations Word shortening
- 13. www.oroinc.com Error-tolerance: Basics Tolerage minor errors Ignore typos Not an autocorrection
- 14. www.oroinc.com Error-tolerance: Implementation Fuzzy matching >> One or two errors per word >> The 鍖rst letter is always correct Minimum word length >> Exclusion pattern >> { "match": { "all_text_1.analyzed": { "query": "ligt", "operator": "and", "boost": 1, "fuzziness": 1, "prefix_length": 1 } } }, { "match": { "all_text_1.analyzed": { "query": "bubl", "operator": "and", "boost": 1, "fuzziness": 1, "prefix_length": 1 } } }
- 15. www.oroinc.com Error-tolerance: Examples Typos One or two errors Exclude SKU
- 17. www.oroinc.com Customization: Data Level Add new data New 鍖eld Global search text 鍖eld Events PrepareEntityMapEvent >> IndexEntityEvent >>
- 18. www.oroinc.com Customization: Query Level Request builders >> Decorate existing builder Create new builder Events BeforeSearchEvent (standard) >> BeforeSearchEvent (website) >>
- 19. www.oroinc.com Documentation Search index architecture >> Fine-tuning >> Elasticsearch guide >> Elasticsearch forum >>