Synyomyms in Elasticsearch

es_syn.txt

DELETE syntest
PUT syntest
{
    "mappings": {
        "article": {
            "properties": {
                "text": {
                    "type": "string",
                    "analyzer": "syn_text"
                }
            }
        }
    },
    "settings": {
        "analysis": {
            "analyzer": {
                "syn_text": {
                    "tokenizer": "standard",
                    "filter": ["synonym"]
                }
            }, 
            "filter": {
                "synonym": {
                    "type": "synonym",
                    "synonyms": ["heart attack, myocardial infarction, mi, cardiac arrest, heartattack"]
                }
            }
        }        
    }
}

POST syntest/_search
{
    "query": {
        "match_phrase": {
            "text": "cardiac attack"
        }
        
    }
}

PUT syntest/article/1
{
    "text": "heart attack"
}

PUT syntest/article/2
{
    "text": "I'm under arrest!"
}

PUT syntest/article/3
{
    "text": "myocardial infarction"
}


POST syntest/_search
{
    "query": {
        "match_phrase": {
            "text": "heart attack"
        }
        
    }
}

DELETE syntest
PUT syntest
{
    "mappings": {
        "article": {
            "properties": {
                "text": {
                    "type": "string",
                    "analyzer": "english",
                    "fields": {
                        "entities": {
                            "type": "string",
                            "analyzer": "syn_text"
                        }
                    }
                }
            }
        }
    },
    "settings": {
        "analysis": {
            "analyzer": {
                "syn_text": {
                    "tokenizer": "standard",
                    "filter": ["4_shingle", "health_synonym", "keep_health_entities"]
                }
            },             
            "filter": {
                "4_shingle": {
                    "type": "shingle",
                    "max_shingle_size": 4,
                    "min_shingle_size": 2,
                    "output_unigrams": true
                },
                "health_synonym": {
                    "type": "synonym",
                    "tokenizer": "keyword",
                    "synonyms": ["heart attack, myocardial infarction, mi, cardiac arrest, heartattack, acute heart attack"]
                },
                "keep_health_entities": {
                    "type": "keep",
                    "keep_words": ["heart attack", "myocardial infarction", "mi", "cardiac arrest", "heartattack", "acute heart attack"]
                }
            }
        }        
    }
}

POST syntest/_search
{
    "query": {
        "bool": {
            "should": [
            {"match": {
                "text.entities": "heart attack"
            }},
            {"match": {
                "text": "heart attack"
            }}]
        }
    }
}

DELETE syntest
PUT syntest
{
    "mappings": {
        "article": {
            "properties": {
                "text": {
                    "type": "string",
                    "analyzer": "syn_text"
                }
            }
        }
    },
    "settings": {
        "analysis": {
            "analyzer": {
                "syn_text": {
                    "tokenizer": "standard",
                    "filter": ["autophrase_syn", "health_synonym"]
                }
            },             
            "filter": {
                "autophrase_syn": {
                    "type": "synonym",
                    "synonyms": ["heart attack => heart_attack",
                                "myocardial infarction => myocardial_infarction",
                                "cardiac arrest => cardiac_arrest",
                                "acute heart attack => acute_heart_attack"]
                },
                "health_synonym": {
                    "type": "synonym",
                    "tokenizer": "keyword",
                    "synonyms": ["heart_attack, myocardial_infarction, mi, cardiac_arrest, heartattack, acute_heart_attack"]
                }
            }
        }        
    }
}

PUT syntest/article/4
{
    "text": "bad heart attack in paris"
}

POST syntest/_search
{
    "query": {
        "match_phrase": {
            "text": "bad cardiac arrest"
        }
   
    }
}