reactjs-elasticsearch-auto-complete-example/elastic_product_vector_v2.data at master · musobarlab/reactjs-elasticsearch-auto-complete-example · GitHub

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#### https://www.elastic.co/search-labs/blog/vector-search-set-up-elasticsearch

#### MAPPING PHRASE SUGGESTER
PUT products
{
  "settings": {
    "analysis": {
      "analyzer": {
        "shingle_analyzer": {
          "type": "custom",
          "tokenizer": "standard",
          "filter": [
            "lowercase",
            "shingle_filter"
          ]
        }
      },
      "filter": {
        "shingle_filter": {
          "type": "shingle",
          "min_shingle_size": 2,
          "max_shingle_size": 3
        }
    }
  }
  },
  "mappings": {
    "properties": {
      "productName": {
        "type": "text",
        "fields": {
          "suggest": {
            "type": "text",
            "analyzer": "shingle_analyzer"
          }
        }
      },
      "imageVector": {
        "type": "dense_vector",
        "dims": 512,
        "index": true,
        "similarity": "cosine",
        "index_options": {
          "type": "int8_hnsw",
          "ef_construction": 128,
          "m": 24
        }
      },
      "aboutProduct": {
        "type": "text",
        "fields": {
          "suggest": {
            "type": "text",
            "analyzer": "shingle_analyzer"
          }
        }
      },
      "productSpecification": {
        "type": "text",
        "fields": {
          "suggest": {
            "type": "text",
            "analyzer": "shingle_analyzer"
          }
        }
      },
      "categories": {
        "type": "text",
        "fields": {
          "suggest": {
            "type": "text",
            "analyzer": "shingle_analyzer"
          }
        }
      },
      "sellingPrice": {
        "type": "text"
      },
      "image": {
        "type": "text"
      },
      "variant": {
        "type": "text"
      },
      "productUrl": {
        "type": "text"
      }
    }
  }
}

#### SEARCH WITH VECTOR
POST products/_search
{
  "_source": false,
  "fields": [ "productName" , "image"],
  "knn": {
    "field": "imageVector",
    "query_vector": [-0.5788947939872742, 0.15045863389968872],
    "k": 2,
    "num_candidates": 100
  }
}