Atlas Vector Search 및 Atlas Search를 사용하여 하이브리드 검색 수행

mongosh를 사용하여 Atlas 클러스터에 연결합니다.

자세한 내용은 mongosh를 통한 연결을 참조하세요.

인덱스를 생성하려는 컬렉션이 포함된 데이터베이스로 전환합니다.

use sample_mflix

switched to db sample_mflix

Atlas Vector Search 인덱스를 정의합니다.

다음 명령을 실행합니다. 이 인덱스 정의는 컬렉션을 쿼리할 때 plot_embedding_voyage_3_large 필드를 Atlas Vector Search 필드로 지정하여 인덱싱합니다.

1
db.embedded_movies.createSearchIndex(
2
  "hybrid-vector-search", 
3
  "vectorSearch", 
4
  {
5
    "fields": [
6
      {
7
        "type": "vector",
8
        "path": "plot_embedding_voyage_3_large",
9
        "numDimensions": 2048,
10
        "similarity": "dotProduct"
11
      }
12
    ]
13
  }
14
);

Atlas Search 인덱스를 정의합니다.

다음 인덱스 정의는 컬렉션 에서 동적으로 인덱싱할 수 있는 모든 필드를 자동으로 인덱싱합니다.

1
db.embedded_movies.createSearchIndex(
2
  "hybrid-full-text-search", 
3
  "search", 
4
  {
5
    "mappings": {
6
      "dynamic": true
7
    }
8
  }
9
);

쿼리 에 사용할 임베딩을 설정합니다.

1. query-embeddings.js이라는 파일을 만듭니다.

2. 다음 임베딩을 복사하여 파일 에 붙여넣습니다.

   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3. 파일을 저장하고 닫습니다.

mongosh를 사용하여 클러스터에 연결합니다.

터미널 창에서 mongosh 를 열고 클러스터에 연결합니다. 연결에 대한 자세한 지침은 mongosh 를 통한 연결을 참조하세요.

sample_mflix 데이터베이스를 사용합니다.

mongosh 프롬프트에서 다음 명령을 실행합니다.

use sample_mflix

switched to db sample_mflix

쿼리 에 사용할 임베딩을 로드합니다.

<path-to-file>을 embeddings.js 파일의 절대 경로로 바꾼 후 다음 명령을 실행하여 임베딩을 로드합니다.

load('/<path-to-file>/embeddings.js');

임베딩이 성공적으로 로드되었는지 확인하려면 다음 명령을 실행 .

STAR_WARS_EMBEDDING.length

2048

embedded_movies 컬렉션에 대해 다음 Atlas Search 쿼리를 실행합니다.

1
db.embedded_movies.aggregate([
2
  {
3
    $rankFusion: {
4
      input: {
5
        pipelines: {
6
          vectorPipeline: [
7
            {
8
              "$vectorSearch": {
9
                "index": "hybrid-vector-search",
10
                "path": "plot_embedding_voyage_3_large",
11
                "queryVector": STAR_WARS_EMBEDDING,
12
                "numCandidates": 100,
13
                "limit": 20
14
              }
15
            }
16
          ],
17
          fullTextPipeline: [
18
            {
19
              "$search": {
20
                "index": "hybrid-full-text-search",
21
                "phrase": {
22
                  "query": "star wars",
23
                  "path": "title"
24
                }
25
              }
26
            },
27
            { "$limit": 20 }
28
          ]
29
        }
30
      },
31
      combination: {
32
        weights: {
33
          vectorPipeline: 0.5,
34
          fullTextPipeline: 0.5
35
        }
36
      },
37
      "scoreDetails": true
38
    }
39
  },
40
  {
41
    "$project": {
42
      _id: 1,
43
      title: 1,
44
      plot: 1,
45
      scoreDetails: {"$meta": "scoreDetails"}
46
    }
47
  },
48
  {
49
    "$limit": 10
50
  }
51
]);

[
  {
    _id: ObjectId('573a1397f29313caabce68f6'),
    plot: "Luke Skywalker joins forces with a Jedi Knight, a cocky pilot, a wookiee and two droids to save the universe from the Empire's world-destroying battle-station, while also attempting to rescue Princess Leia from the evil Darth Vader.",
    title: 'Star Wars: Episode IV - A New Hope',
    scoreDetails: {
      value: 0.01626123744050767,
      description: 'value output by reciprocal rank fusion algorithm, computed as sum of (weight * (1 / (60 + rank))) across input pipelines from which this document is output, from:',
      details: [
        {
          inputPipelineName: 'fullTextPipeline',
          rank: 2,
          weight: 0.5,
          value: 2.9571781158447266,
          details: []
        },
        {
          inputPipelineName: 'vectorPipeline',
          rank: 1,
          weight: 0.5,
          value: 0.7987099885940552,
          details: []
        }
      ]
    }
  },
  {
    _id: ObjectId('573a139af29313caabcf0f5f'),
    plot: 'Two Jedi Knights escape a hostile blockade to find allies and come across a young boy who may bring balance to the Force, but the long dormant Sith resurface to reclaim their old glory.',
    title: 'Star Wars: Episode I - The Phantom Menace',
    scoreDetails: {
      value: 0.015527202696196438,
      description: 'value output by reciprocal rank fusion algorithm, computed as sum of (weight * (1 / (60 + rank))) across input pipelines from which this document is output, from:',
      details: [
        {
          inputPipelineName: 'fullTextPipeline',
          rank: 2,
          weight: 0.5,
          value: 2.9571781158447266,
          details: []
        },
        {
          inputPipelineName: 'vectorPipeline',
          rank: 7,
          weight: 0.5,
          value: 0.7771433591842651,
          details: []
        }
      ]
    }
  },
  {
    _id: ObjectId('573a1397f29313caabce77d9'),
    plot: 'After the rebels have been brutally overpowered by the Empire on their newly established base, Luke Skywalker takes advanced Jedi training with Master Yoda, while his friends are pursued by Darth Vader as part of his plan to capture Luke.',
    title: 'Star Wars: Episode V - The Empire Strikes Back',
    scoreDetails: {
      value: 0.015504807692307693,
      description: 'value output by reciprocal rank fusion algorithm, computed as sum of (weight * (1 / (60 + rank))) across input pipelines from which this document is output, from:',
      details: [
        {
          inputPipelineName: 'fullTextPipeline',
          rank: 4,
          weight: 0.5,
          value: 2.712062358856201,
          details: []
        },
        {
          inputPipelineName: 'vectorPipeline',
          rank: 5,
          weight: 0.5,
          value: 0.7810181975364685,
          details: []
        }
      ]
    }
  },
  {
    _id: ObjectId('573a1397f29313caabce8cdb'),
    plot: 'After rescuing Han Solo from the palace of Jabba the Hutt, the rebels attempt to destroy the second Death Star, while Luke struggles to make Vader return from the dark side of the Force.',
    title: 'Star Wars: Episode VI - Return of the Jedi',
    scoreDetails: {
      value: 0.015388257575757576,
      description: 'value output by reciprocal rank fusion algorithm, computed as sum of (weight * (1 / (60 + rank))) across input pipelines from which this document is output, from:',
      details: [
        {
          inputPipelineName: 'fullTextPipeline',
          rank: 4,
          weight: 0.5,
          value: 2.712062358856201,
          details: []
        },
        {
          inputPipelineName: 'vectorPipeline',
          rank: 6,
          weight: 0.5,
          value: 0.7782549858093262,
          details: []
        }
      ]
    }
  },
  {
    _id: ObjectId('573a13c0f29313caabd62f62'),
    plot: 'Anakin Skywalker and Ahsoka Tano must rescue the kidnapped son of Jabba the Hutt, but political intrigue complicates their mission.',
    title: 'Star Wars: The Clone Wars',
    scoreDetails: {
      value: 0.015141165755919854,
      description: 'value output by reciprocal rank fusion algorithm, computed as sum of (weight * (1 / (60 + rank))) across input pipelines from which this document is output, from:',
      details: [
        {
          inputPipelineName: 'fullTextPipeline',
          rank: 1,
          weight: 0.5,
          value: 3.609658718109131,
          details: []
        },
        {
          inputPipelineName: 'vectorPipeline',
          rank: 12,
          weight: 0.5,
          value: 0.7561323642730713,
          details: []
        }
      ]
    }
  },
  {
    _id: ObjectId('573a139af29313caabcf124d'),
    plot: 'As the Clone Wars near an end, the Sith Lord Darth Sidious steps out of the shadows, at which time Anakin succumbs to his emotions, becoming Darth Vader and putting his relationships with Obi-Wan and Padme at risk.',
    title: 'Star Wars: Episode III - Revenge of the Sith',
    scoreDetails: {
      value: 0.014854753521126762,
      description: 'value output by reciprocal rank fusion algorithm, computed as sum of (weight * (1 / (60 + rank))) across input pipelines from which this document is output, from:',
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