Atlas Vector Search Quick Start
This quick start describes how to index vector embeddings in your data on an Atlas cluster and run queries that search vector embeddings for similar data.
A vector is an array of values arranged in one or more dimensions.
Vector embeddings that bidirectional encoder models, like OpenAI
text-embedding-ada-002
, produce can represent words, phrases, and
sentences. You can index vector embeddings and search for items related
in meaning or context. To learn more, see Atlas Vector Search Overview.
Objectives
In this quick start, you will do the following steps:
Create an index definition for the
sample_mflix.embedded_movies
collection that indexes theplot_embedding
field as thevector
type. Theplot_embedding
field contains embeddings created using OpenAI'stext-embedding-ada-002
embeddings model. The index definition specifies1536
vector dimensions and measure similarity usingcosine
.Run an Atlas Vector Search query that searches the sample
sample_mflix.embedded_movies
collection. The query uses the$vectorSearch
stage to search theplot_embedding
field, which contains embeddings created using OpenAI'stext-embedding-ada-002
embeddings model. The query searches theplot_embedding
field using vector embeddings for the string time travel. It considers up to150
nearest neighbors, and returns10
documents in the results.
Prerequisites
To complete this quick start, you must meet the following prerequisites.
Required Cluster Configuration
You must have the following cluster configuration:
An Atlas cluster with MongoDB version 6.0.11, or v7.0.2 or later (including RCs).
The sample data loaded into your Atlas cluster.
Supported Clients
You must have one of the following applications to run queries on your Atlas cluster:
You can also use Atlas Vector Search with local Atlas deployments that you create with the Atlas CLI. To learn more, see Create a Local Atlas Deployment.
Required Access
To create an Atlas Vector Search index, you must have
Project Data Access Admin
or higher access to the project.
Index Vector Embeddings
Use the following example to index vector embeddings in your data on an Atlas cluster.
In Atlas, go to the Clusters page for your project.
If it is not already displayed, select the organization that contains your desired project from the Organizations menu in the navigation bar.
If it is not already displayed, select your desired project from the Projects menu in the navigation bar.
If the Clusters page is not already displayed, click Database in the sidebar.
Go to the Atlas Search page for your cluster.
You can go the Atlas Search page from the sidebar, the Data Explorer, or your cluster details page.
In the sidebar, click Atlas Search under the Services heading.
From the Select data source dropdown, select your cluster and click Go to Atlas Search.
Click the Browse Collections button for your cluster.
Expand the database and select the collection.
Click the Search Indexes tab for the collection.
Click the cluster's name.
Click the Atlas Search tab.
Define your Atlas Vector Search index.
The following example index definition for the
sample_mflix.embedded_movies
collection indexes the
plot_embedding
field as the vector
type. The
plot_embedding
field contains embeddings created using
OpenAI's text-embedding-ada-002
embeddings model. The index
definition specifies 1536
vector dimensions and measures
similarity using cosine
.
1 { 2 "fields": [{ 3 "type": "vector", 4 "path": "plot_embedding", 5 "numDimensions": 1536, 6 "similarity": "cosine" 7 }] 8 }
To learn more, see How to Index Fields for Vector Search.
Run a Vector Search Query
Use the following example to run a query that searches vector embeddings.
➤ Use the Select your language drop-down menu to select the client to use to run the example queries in this section.
In Atlas, go to the Clusters page for your project.
If it is not already displayed, select the organization that contains your desired project from the Organizations menu in the navigation bar.
If it is not already displayed, select your desired project from the Projects menu in the navigation bar.
If the Clusters page is not already displayed, click Database in the sidebar.
Construct and run your vector search query.
The following example query searches the sample
sample_mflix.embedded_movies
collection. It uses the
$vectorSearch
stage to search the plot_embedding
field,
which contains embeddings created using OpenAI's
text-embedding-ada-002
embeddings model. The query searches
the plot_embedding
field using vector embeddings for the string
time travel. It considers up to 150
nearest neighbors, and
returns 10
documents in the results. The query also specifies a
$project
stage to do the following:
Exclude the
_id
field and include only theplot
andtitle
fields in the results.Add a field named
score
that shows the vector search score for each document in the results.
Click </> Text.
Copy the following sample query.
Replace [ ] in the left pane with the following sample query:
1 [ 2 { 3 "$vectorSearch": { 4 "index": "vector_index", 5 "path": "plot_embedding", 6 "queryVector": 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7 "numCandidates": 150, 8 "limit": 10 9 } 10 }, 11 { 12 "$project": { 13 "_id": 0, 14 "plot": 1, 15 "title": 1, 16 "score": { $meta: "vectorSearchScore" } 17 } 18 } 19 ]
1 { 2 "score": 0.7892671227455139, 3 "plot": "A reporter, learning of time travelers visiting 20th century disasters, tries to change the history they know by averting upcoming disasters.", 4 "title": "Thrill Seekers" 5 } 6 { 7 "plot": "At the age of 21, Tim discovers he can travel in time and change what happens and has happened in his own life. His decision to make his world a better place by getting a girlfriend turns out not to be as easy as you might think.", 8 "title": "About Time", 9 "score": 0.7843604683876038 10 } 11 { 12 "plot": "Hoping to alter the events of the past, a 19th century inventor instead travels 800,000 years into the future, where he finds humankind divided into two warring races.", 13 "title": "The Time Machine", 14 "score": 0.7801066637039185 15 } 16 { 17 "plot": "After using his mother's newly built time machine, Dolf gets stuck involuntary in the year 1212. He ends up in a children's crusade where he confronts his new friends with modern techniques...", 18 "title": "Crusade in Jeans", 19 "score": 0.7789170742034912 20 } 21 { 22 "title": "Timecop", 23 "score": 0.7771612405776978, 24 "plot": "An officer for a security agency that regulates time travel, must fend for his life against a shady politician who has a tie to his past." 25 } 26 { 27 "plot": "A time-travel experiment in which a robot probe is sent from the year 2073 to the year 1973 goes terribly wrong thrusting one of the project scientists, a man named Nicholas Sinclair into a...", 28 "title": "A.P.E.X.", 29 "score": 0.7730885744094849 30 } 31 { 32 "plot": "Agent J travels in time to M.I.B.'s early days in 1969 to stop an alien from assassinating his friend Agent K and changing history.", 33 "title": "Men in Black 3", 34 "score": 0.7712380886077881 35 } 36 { 37 "score": 0.7669923901557922, 38 "plot": "Bound by a shared destiny, a teen bursting with scientific curiosity and a former boy-genius inventor embark on a mission to unearth the secrets of a place somewhere in time and space that exists in their collective memory.", 39 "title": "Tomorrowland" 40 } 41 { 42 "plot": "With the help of his uncle, a man travels to the future to try and bring his girlfriend back to life.", 43 "title": "Love Story 2050", 44 "score": 0.7649372816085815 45 } 46 { 47 "plot": "A dimension-traveling wizard gets stuck in the 21st century because cell-phone radiation interferes with his magic. With his home world on the brink of war, he seeks help from a jaded ...", 48 "title": "The Portal", 49 "score": 0.7640786170959473 50 }
The Pipeline Output pane displays the results of your query.
To learn more about this pipeline stage, see Run Vector Search Queries.
Expand your query results.
The Data Explorer might not display all the values in the documents it returns. To view all the values for the fields that you searched in the query path, expand the fields in the documents.
Connect to your cluster in mongosh
.
Open mongosh
in a terminal window and connect to your
cluster. For detailed instructions on connecting, see
Connect via mongosh.
Construct and run your vector search query.
The following example query searches the sample
sample_mflix.embedded_movies
collection. It uses the
$vectorSearch
stage to search the plot_embedding
field,
which contains embeddings created using OpenAI's
text-embedding-ada-002
embeddings model. The query searches
the plot_embedding
field using vector embeddings for the string
time travel. It considers up to 150
nearest neighbors, and
returns 10
documents in the results. The query also specifies a
$project
stage to do the following:
Exclude the
_id
field and include only theplot
andtitle
fields in the results.Add a field named
score
that shows the vector search score for each document in the results.
Copy and paste the following sample query into your terminal
Note
Pasting the
queryVector
in the sample code into your terminal might take a while depending on your machine.Verify your query syntax and then run it using
mongosh
.
1 db.embedded_movies.aggregate([ 2 { 3 "$vectorSearch": { 4 "index": "vector_index", 5 "path": "plot_embedding", 6 "queryVector": 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7 "numCandidates": 150, 8 "limit": 10 9 } 10 }, 11 { 12 "$project": { 13 "_id": 0, 14 "plot": 1, 15 "title": 1, 16 "score": { $meta: "vectorSearchScore" } 17 } 18 } 19 ])
1 [ 2 { 3 plot: 'A reporter, learning of time travelers visiting 20th century disasters, tries to change the history they know by averting upcoming disasters.', 4 title: 'Thrill Seekers', 5 score: 0.7892671227455139 6 }, 7 { 8 plot: 'At the age of 21, Tim discovers he can travel in time and change what happens and has happened in his own life. His decision to make his world a better place by getting a girlfriend turns out not to be as easy as you might think.', 9 title: 'About Time', 10 score: 0.7843604683876038 11 }, 12 { 13 plot: 'Hoping to alter the events of the past, a 19th century inventor instead travels 800,000 years into the future, where he finds humankind divided into two warring races.', 14 title: 'The Time Machine', 15 score: 0.7801066637039185 16 }, 17 { 18 plot: "After using his mother's newly built time machine, Dolf gets stuck involuntary in the year 1212. He ends up in a children's crusade where he confronts his new friends with modern techniques...", 19 title: 'Crusade in Jeans', 20 score: 0.7789170742034912 21 }, 22 { 23 plot: 'An officer for a security agency that regulates time travel, must fend for his life against a shady politician who has a tie to his past.', 24 title: 'Timecop', 25 score: 0.7771612405776978 26 }, 27 { 28 plot: 'A time-travel experiment in which a robot probe is sent from the year 2073 to the year 1973 goes terribly wrong thrusting one of the project scientists, a man named Nicholas Sinclair into a...', 29 title: 'A.P.E.X.', 30 score: 0.7730885744094849 31 }, 32 { 33 plot: "Agent J travels in time to M.I.B.'s early days in 1969 to stop an alien from assassinating his friend Agent K and changing history.", 34 title: 'Men in Black 3', 35 score: 0.7712380886077881 36 }, 37 { 38 plot: 'Bound by a shared destiny, a teen bursting with scientific curiosity and a former boy-genius inventor embark on a mission to unearth the secrets of a place somewhere in time and space that exists in their collective memory.', 39 title: 'Tomorrowland', 40 score: 0.7669923901557922 41 }, 42 { 43 plot: 'With the help of his uncle, a man travels to the future to try and bring his girlfriend back to life.', 44 title: 'Love Story 2050', 45 score: 0.7649372816085815 46 }, 47 { 48 plot: 'A dimension-traveling wizard gets stuck in the 21st century because cell-phone radiation interferes with his magic. With his home world on the brink of war, he seeks help from a jaded ...', 49 title: 'The Portal', 50 score: 0.7640786170959473 51 } 52 ]
To learn more about this pipeline stage, see Run Vector Search Queries.
Set up and initialize the .NET/C# project for the query.
Create a new directory called
query-quick-start
and initialize your project with the dotnet new command.mkdir query-quick-start cd query-quick-start dotnet new console Add the .NET/C# Driver to your project as a dependency.
dotnet add package MongoDB.Driver
Construct your vector search query.
The following example query searches the sample
sample_mflix.embedded_movies
collection. It uses the
$vectorSearch
stage to search the plot_embedding
field,
which contains embeddings created using OpenAI's
text-embedding-ada-002
embeddings model. The query searches
the plot_embedding
field using vector embeddings for the string
time travel. It considers up to 150
nearest neighbors, and
returns 10
documents in the results. The query also specifies a
$project
stage to do the following:
Exclude the
_id
field and include only theplot
andtitle
fields in the results.Add a field named
score
that shows the vector search score for each document in the results.
Edit the
Program.cs
file.Copy and paste the following sample query into the
Program.cs
file:1 using MongoDB.Bson; 2 using MongoDB.Bson.Serialization.Attributes; 3 using MongoDB.Bson.Serialization.Conventions; 4 using MongoDB.Driver; 5 using MongoDB.Driver.Search; 6 7 public class vectorSearchBasicQuery 8 { 9 // define connection to your Atlas cluster 10 private const string MongoConnectionString = "<connection-string>"; 11 12 public static void Main(string[] args){ 13 var camelCaseConvention = new ConventionPack { new CamelCaseElementNameConvention() }; 14 ConventionRegistry.Register("CamelCase", camelCaseConvention, type => true); 15 16 // connect to your Atlas cluster 17 var mongoClient = new MongoClient(MongoConnectionString); 18 19 // define namespace 20 var moviesDatabase = mongoClient.GetDatabase("sample_mflix"); 21 var moviesCollection = moviesDatabase.GetCollection<EmbeddedMovie>("embedded_movies"); 22 23 // define vector embeddings to search 24 var vector = new[] 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25 var options = new VectorSearchOptions<EmbeddedMovie>() { 26 IndexName = "vector_index", 27 NumberOfCandidates = 150 28 }; 29 30 // run query 31 var results = moviesCollection.Aggregate() 32 .VectorSearch(m => m.Embedding, vector, 10, options) 33 .Project(Builders<EmbeddedMovie>.Projection 34 .Include(m => m.Title) 35 .Include(m => m.Plot) 36 .MetaVectorSearchScore(m => m.Score)) 37 .ToList(); 38 39 // print results 40 foreach (var movie in results) 41 { 42 Console.WriteLine(movie.ToJson()); 43 } 44 } 45 } 46 47 [ ]48 public class EmbeddedMovie 49 { 50 [ ]51 public string Title { get; set; } 52 public string Plot { get; set; } 53 [ ]54 public double[] Embedding { get; set; } 55 public double Score { get; set; } 56 }
To learn more about this pipeline stage, see Run Vector Search Queries.
Specify the <connection-string>
.
Replace the
<connection-string>
with your Atlas connection string.Ensure that your connection string includes your database user's credentials. To learn more, see Connect via Drivers.
Save the file.
Run your query.
Compile and run the Program.cs
file.
dotnet run query-quick-start.csproj
1 { "_id" : ObjectId("573a13a0f29313caabd04a4f"), "plot" : "A reporter, learning of time travelers visiting 20th century disasters, tries to change the history they know by averting upcoming disasters.", "title" : "Thrill Seekers", "score" : 0.78926712274551392 } 2 { "_id" : ObjectId("573a13d8f29313caabda6557"), "plot" : "At the age of 21, Tim discovers he can travel in time and change what happens and has happened in his own life. His decision to make his world a better place by getting a girlfriend turns out not to be as easy as you might think.", "title" : "About Time", "score" : 0.78436046838760376 } 3 { "_id" : ObjectId("573a13a5f29313caabd13b4b"), "plot" : "Hoping to alter the events of the past, a 19th century inventor instead travels 800,000 years into the future, where he finds humankind divided into two warring races.", "title" : "The Time Machine", "score" : 0.78010666370391846 } 4 { "_id" : ObjectId("573a13aef29313caabd2e2d7"), "plot" : "After using his mother's newly built time machine, Dolf gets stuck involuntary in the year 1212. He ends up in a children's crusade where he confronts his new friends with modern techniques...", "title" : "Crusade in Jeans", "score" : 0.77891707420349121 } 5 { "_id" : ObjectId("573a1399f29313caabceec0e"), "plot" : "An officer for a security agency that regulates time travel, must fend for his life against a shady politician who has a tie to his past.", "title" : "Timecop", "score" : 0.77716124057769775 } 6 { "_id" : ObjectId("573a1399f29313caabcee36f"), "plot" : "A time-travel experiment in which a robot probe is sent from the year 2073 to the year 1973 goes terribly wrong thrusting one of the project scientists, a man named Nicholas Sinclair into a...", "title" : "A.P.E.X.", "score" : 0.77308857440948486 } 7 { "_id" : ObjectId("573a13c6f29313caabd715d3"), "plot" : "Agent J travels in time to M.I.B.'s early days in 1969 to stop an alien from assassinating his friend Agent K and changing history.", "title" : "Men in Black 3", "score" : 0.77123808860778809 } 8 { "_id" : ObjectId("573a13d4f29313caabd98c13"), "plot" : "Bound by a shared destiny, a teen bursting with scientific curiosity and a former boy-genius inventor embark on a mission to unearth the secrets of a place somewhere in time and space that exists in their collective memory.", "title" : "Tomorrowland", "score" : 0.76699239015579224 } 9 { "_id" : ObjectId("573a13b6f29313caabd477fa"), "plot" : "With the help of his uncle, a man travels to the future to try and bring his girlfriend back to life.", "title" : "Love Story 2050", "score" : 0.76493728160858154 } 10 { "_id" : ObjectId("573a13e5f29313caabdc40c9"), "plot" : "A dimension-traveling wizard gets stuck in the 21st century because cell-phone radiation interferes with his magic. With his home world on the brink of war, he seeks help from a jaded ...", "title" : "The Portal", "score" : 0.76407861709594727 }
Construct your vector search query.
The following example query searches the sample
sample_mflix.embedded_movies
collection. It uses the
$vectorSearch
stage to search the plot_embedding
field,
which contains embeddings created using OpenAI's
text-embedding-ada-002
embeddings model. The query searches
the plot_embedding
field using vector embeddings for the string
time travel. It considers up to 150
nearest neighbors, and
returns 10
documents in the results. The query also specifies a
$project
stage to do the following:
Exclude the
_id
field and include only theplot
andtitle
fields in the results.Add a field named
score
that shows the vector search score for each document in the results.
Create a file named
BasicQuery.java
.Copy and paste the following sample query into the
BasicQuery.java
file:1 import static com.mongodb.client.model.Aggregates.*; 2 import static com.mongodb.client.model.Projections.*; 3 import static com.mongodb.client.model.search.SearchPath.fieldPath; 4 import static java.util.Arrays.asList; 5 import com.mongodb.client.MongoClient; 6 import com.mongodb.client.MongoClients; 7 import com.mongodb.client.MongoCollection; 8 import com.mongodb.client.MongoDatabase; 9 import java.util.List; 10 import com.mongodb.client.model.search.FieldSearchPath; 11 import org.bson.Document; 12 import org.bson.conversions.Bson; 13 14 public class BasicQuery { 15 public static void main( String[] args ) { 16 // specify connection 17 String uri = "<connection-string>"; 18 19 // establish connection and set namespace 20 try (MongoClient mongoClient = MongoClients.create(uri)) { 21 MongoDatabase database = mongoClient.getDatabase("sample_mflix"); 22 MongoCollection<Document> collection = database.getCollection("embedded_movies"); 23 24 // define $vectorSearch query options 25 List<Double> queryVector = (asList(-0.0016261312d, -0.028070757d, -0.011342932d, -0.012775794d, -0.0027440966d, 0.008683807d, -0.02575152d, -0.02020668d, -0.010283281d, -0.0041719596d, 0.021392956d, 0.028657231d, -0.006634482d, 0.007490867d, 0.018593878d, 0.0038187427d, 0.029590257d, -0.01451522d, 0.016061379d, 0.00008528442d, -0.008943722d, 0.01627464d, 0.024311995d, -0.025911469d, 0.00022596726d, -0.008863748d, 0.008823762d, -0.034921836d, 0.007910728d, -0.01515501d, 0.035801545d, -0.0035688248d, -0.020299982d, -0.03145631d, -0.032256044d, -0.028763862d, -0.0071576433d, -0.012769129d, 0.012322609d, -0.006621153d, 0.010583182d, 0.024085402d, -0.001623632d, 0.007864078d, -0.021406285d, 0.002554159d, 0.012229307d, -0.011762793d, 0.0051682983d, 0.0048484034d, 0.018087378d, 0.024325324d, -0.037694257d, -0.026537929d, -0.008803768d, -0.017767483d, -0.012642504d, -0.0062712682d, 0.0009771782d, -0.010409906d, 0.017754154d, -0.004671795d, -0.030469967d, 0.008477209d, -0.005218282d, 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numCandidates, 38 limit), 39 project( 40 fields(exclude("_id"), include("title"), include("plot"), 41 metaVectorSearchScore("score")))); 42 43 // run query and print results 44 collection.aggregate(pipeline) 45 .forEach(doc -> System.out.println(doc.toJson())); 46 } 47 } 48 }
Note
To run the sample code in your Maven environment, add the following code above the import statements in your file.
package com.mongodb.drivers;
To learn more about this pipeline stage, see Run Vector Search Queries.
Specify the <connection-string>
.
Replace the
<connection-string>
with your Atlas connection string.Ensure that your connection string includes your database user's credentials. To learn more, see Connect via Drivers.
Save the file.
Run your query.
Compile and run the BasicQuery.java
file:
javac BasicQuery.java java BasicQuery
1 {"plot": "A reporter, learning of time travelers visiting 20th century disasters, tries to change the history they know by averting upcoming disasters.", "title": "Thrill Seekers", "score": 0.7892671227455139} 2 {"plot": "At the age of 21, Tim discovers he can travel in time and change what happens and has happened in his own life. His decision to make his world a better place by getting a girlfriend turns out not to be as easy as you might think.", "title": "About Time", "score": 0.7843604683876038} 3 {"plot": "Hoping to alter the events of the past, a 19th century inventor instead travels 800,000 years into the future, where he finds humankind divided into two warring races.", "title": "The Time Machine", "score": 0.7801066637039185} 4 {"plot": "After using his mother's newly built time machine, Dolf gets stuck involuntary in the year 1212. He ends up in a children's crusade where he confronts his new friends with modern techniques...", "title": "Crusade in Jeans", "vectorSearchScore": 0.7789170742034912} 5 {"plot": "An officer for a security agency that regulates time travel, must fend for his life against a shady politician who has a tie to his past.", "title": "Timecop", "score": 0.7771612405776978} 6 {"plot": "A time-travel experiment in which a robot probe is sent from the year 2073 to the year 1973 goes terribly wrong thrusting one of the project scientists, a man named Nicholas Sinclair into a...", "title": "A.P.E.X.", "vectorSearchScore": 0.7730885744094849} 7 {"plot": "Agent J travels in time to M.I.B.'s early days in 1969 to stop an alien from assassinating his friend Agent K and changing history.", "title": "Men in Black 3", "score": 0.7712380886077881} 8 {"plot": "Bound by a shared destiny, a teen bursting with scientific curiosity and a former boy-genius inventor embark on a mission to unearth the secrets of a place somewhere in time and space that exists in their collective memory.", "title": "Tomorrowland", "score": 0.7669923901557922} 9 {"plot": "With the help of his uncle, a man travels to the future to try and bring his girlfriend back to life.", "title": "Love Story 2050", "vectorSearchScore": 0.7649372816085815} 10 {"plot": "A dimension-traveling wizard gets stuck in the 21st century because cell-phone radiation interferes with his magic. With his home world on the brink of war, he seeks help from a jaded ...", "title": "The Portal", "score": 0.7640786170959473}
Construct your vector search query.
The following example query searches the sample
sample_mflix.embedded_movies
collection. It uses the
$vectorSearch
stage to search the plot_embedding
field,
which contains embeddings created using OpenAI's
text-embedding-ada-002
embeddings model. The query searches
the plot_embedding
field using vector embeddings for the string
time travel. It considers up to 150
nearest neighbors, and
returns 10
documents in the results. The query also specifies a
$project
stage to do the following:
Exclude the
_id
field and include only theplot
andtitle
fields in the results.Add a field named
score
that shows the vector search score for each document in the results.
Create a file named
atlas-vector-search-quick-start.js
.Copy and paste the following sample query into the
atlas-vector-search-quick-start.js
file:1 const { MongoClient } = require("mongodb"); 2 3 // connect to your Atlas cluster 4 const uri = "<connection-string>"; 5 6 const client = new MongoClient(uri); 7 8 async function run() { 9 try { 10 await client.connect(); 11 12 // set namespace 13 const database = client.db("sample_mflix"); 14 const coll = database.collection("embedded_movies"); 15 16 // define pipeline 17 const agg = [ 18 { 19 '$vectorSearch': { 20 'index': 'vector_index', 21 'path': 'plot_embedding', 22 'queryVector': [ 23 -0.0016261312, -0.028070757, -0.011342932, -0.012775794, -0.0027440966, 0.008683807, -0.02575152, -0.02020668, -0.010283281, -0.0041719596, 0.021392956, 0.028657231, -0.006634482, 0.007490867, 0.018593878, 0.0038187427, 0.029590257, -0.01451522, 0.016061379, 0.00008528442, -0.008943722, 0.01627464, 0.024311995, -0.025911469, 0.00022596726, -0.008863748, 0.008823762, -0.034921836, 0.007910728, -0.01515501, 0.035801545, -0.0035688248, -0.020299982, -0.03145631, -0.032256044, -0.028763862, 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0.0122493, -0.0199401, 0.009077012, 0.019753495, 0.006431216, -0.037960835, -0.027377652, 0.016381273, -0.0038620618, 0.022512587, -0.010996379, -0.0015211658, -0.0102233, 0.007071005, 0.008230623, -0.009490209, -0.010083347, 0.024431955, 0.002427534, 0.02828402, 0.0035721571, -0.022192692, -0.011882754, 0.010056688, 0.0011904413, -0.01426197, -0.017500903, -0.00010985966, 0.005591492, -0.0077707744, -0.012049366, 0.011869425, 0.00858384, -0.024698535, -0.030283362, 0.020140035, 0.011949399, -0.013968734, 0.042732596, -0.011649498, -0.011982721, -0.016967745, -0.0060913274, -0.007130985, -0.013109017, -0.009710136 24 ], 25 'numCandidates': 150, 26 'limit': 10 27 } 28 }, { 29 '$project': { 30 '_id': 0, 31 'plot': 1, 32 'title': 1, 33 'score': { 34 '$meta': 'vectorSearchScore' 35 } 36 } 37 } 38 ]; 39 // run pipeline 40 const result = coll.aggregate(agg); 41 42 // print results 43 await result.forEach((doc) => console.dir(JSON.stringify(doc))); 44 } finally { 45 await client.close(); 46 } 47 } 48 run().catch(console.dir);
To learn more about this pipeline stage, see Run Vector Search Queries.
Specify the <connection-string>
.
Replace the
<connection-string>
in the query with your Atlas connection string.Ensure that your connection string includes your database user's credentials. To learn more, see Connect via Drivers.
Save the file.
Run your query.
Run the following command to query your collection:
node atlas-vector-search-quick-start.js
1 '{"plot":"A reporter, learning of time travelers visiting 20th century disasters, tries to change the history they know by averting upcoming disasters.","title":"Thrill Seekers","score":0.7892671227455139}' 2 '{"plot":"At the age of 21, Tim discovers he can travel in time and change what happens and has happened in his own life. His decision to make his world a better place by getting a girlfriend turns out not to be as easy as you might think.","title":"About Time","score":0.7843604683876038}' 3 '{"plot":"Hoping to alter the events of the past, a 19th century inventor instead travels 800,000 years into the future, where he finds humankind divided into two warring races.","title":"The Time Machine","score":0.7801066637039185}' 4 `{"plot":"After using his mother's newly built time machine, Dolf gets stuck involuntary in the year 1212. He ends up in a children's crusade where he confronts his new friends with modern techniques...","title":"Crusade in Jeans","score":0.7789170742034912}` 5 '{"plot":"An officer for a security agency that regulates time travel, must fend for his life against a shady politician who has a tie to his past.","title":"Timecop","score":0.7771612405776978}' 6 '{"plot":"A time-travel experiment in which a robot probe is sent from the year 2073 to the year 1973 goes terribly wrong thrusting one of the project scientists, a man named Nicholas Sinclair into a...","title":"A.P.E.X.","score":0.7730885744094849}' 7 `{"plot":"Agent J travels in time to M.I.B.'s early days in 1969 to stop an alien from assassinating his friend Agent K and changing history.","title":"Men in Black 3","score":0.7712380886077881}` 8 '{"plot":"Bound by a shared destiny, a teen bursting with scientific curiosity and a former boy-genius inventor embark on a mission to unearth the secrets of a place somewhere in time and space that exists in their collective memory.","title":"Tomorrowland","score":0.7669923901557922}' 9 '{"plot":"With the help of his uncle, a man travels to the future to try and bring his girlfriend back to life.","title":"Love Story 2050","score":0.7649372816085815}' 10 '{"plot":"A dimension-traveling wizard gets stuck in the 21st century because cell-phone radiation interferes with his magic. With his home world on the brink of war, he seeks help from a jaded ...","title":"The Portal","score":0.7640786170959473}'
Construct your vector search query.
The following example query searches the sample
sample_mflix.embedded_movies
collection. It uses the
$vectorSearch
stage to search the plot_embedding
field,
which contains embeddings created using OpenAI's
text-embedding-ada-002
embeddings model. The query searches
the plot_embedding
field using vector embeddings for the string
time travel. It considers up to 150
nearest neighbors, and
returns 10
documents in the results. The query also specifies a
$project
stage to do the following:
Exclude the
_id
field and include only theplot
andtitle
fields in the results.Add a field named
score
that shows the vector search score for each document in the results.
Create a file named
atlas-vector-search-quick-start.py
.Copy and paste the following sample query into the
atlas-vector-search-quick-start.py
file:1 import pymongo 2 import datetime 3 4 # connect to your Atlas cluster 5 client = pymongo.MongoClient("<connection-string>") 6 7 # define pipeline 8 pipeline = [ 9 { 10 '$vectorSearch': { 11 'index': 'vector_index', 12 'path': 'plot_embedding', 13 'queryVector': [-0.0016261312, -0.028070757, -0.011342932, -0.012775794, -0.0027440966, 0.008683807, -0.02575152, -0.02020668, -0.010283281, -0.0041719596, 0.021392956, 0.028657231, -0.006634482, 0.007490867, 0.018593878, 0.0038187427, 0.029590257, -0.01451522, 0.016061379, 0.00008528442, -0.008943722, 0.01627464, 0.024311995, -0.025911469, 0.00022596726, -0.008863748, 0.008823762, -0.034921836, 0.007910728, -0.01515501, 0.035801545, -0.0035688248, -0.020299982, -0.03145631, -0.032256044, -0.028763862, -0.0071576433, -0.012769129, 0.012322609, -0.006621153, 0.010583182, 0.024085402, -0.001623632, 0.007864078, -0.021406285, 0.002554159, 0.012229307, -0.011762793, 0.0051682983, 0.0048484034, 0.018087378, 0.024325324, -0.037694257, 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0.02828402, 0.0035721571, -0.022192692, -0.011882754, 0.010056688, 0.0011904413, -0.01426197, -0.017500903, -0.00010985966, 0.005591492, -0.0077707744, -0.012049366, 0.011869425, 0.00858384, -0.024698535, -0.030283362, 0.020140035, 0.011949399, -0.013968734, 0.042732596, -0.011649498, -0.011982721, -0.016967745, -0.0060913274, -0.007130985, -0.013109017, -0.009710136], 14 'numCandidates': 150, 15 'limit': 10 16 } 17 }, { 18 '$project': { 19 '_id': 0, 20 'plot': 1, 21 'title': 1, 22 'score': { 23 '$meta': 'vectorSearchScore' 24 } 25 } 26 } 27 ] 28 29 # run pipeline 30 result = client["sample_mflix"]["embedded_movies"].aggregate(pipeline) 31 32 # print results 33 for i in result: 34 print(i) 35
To learn more about this pipeline stage, see Run Vector Search Queries.
Specify the <connection-string>
.
Replace the
<connection-string>
in the query with your Atlas connection string.Ensure that your connection string includes your database user's credentials. To learn more, see Connect via Drivers.
Save the file.
Run your query.
Run the following command to query your collection:
python atlas-vector-search-quick-start.py
1 {'plot': 'A reporter, learning of time travelers visiting 20th century disasters, tries to change the history they know by averting upcoming disasters.', 'title': 'Thrill Seekers', 'score': 0.7892671227455139} 2 {'plot': 'At the age of 21, Tim discovers he can travel in time and change what happens and has happened in his own life. His decision to make his world a better place by getting a girlfriend turns out not to be as easy as you might think.', 'title': 'About Time', 'score': 0.7843604683876038} 3 {'plot': 'Hoping to alter the events of the past, a 19th century inventor instead travels 800,000 years into the future, where he finds humankind divided into two warring races.', 'title': 'The Time Machine', 'score': 0.7801066637039185} 4 {'plot': "After using his mother's newly built time machine, Dolf gets stuck involuntary in the year 1212. He ends up in a children's crusade where he confronts his new friends with modern techniques...", 'title': 'Crusade in Jeans', 'score': 0.7789170742034912} 5 {'plot': 'An officer for a security agency that regulates time travel, must fend for his life against a shady politician who has a tie to his past.', 'title': 'Timecop', 'score': 0.7771612405776978} 6 {'plot': 'A time-travel experiment in which a robot probe is sent from the year 2073 to the year 1973 goes terribly wrong thrusting one of the project scientists, a man named Nicholas Sinclair into a...', 'title': 'A.P.E.X.', 'score': 0.7730885744094849} 7 {'plot': "Agent J travels in time to M.I.B.'s early days in 1969 to stop an alien from assassinating his friend Agent K and changing history.", 'title': 'Men in Black 3', 'score': 0.7712380886077881} 8 {'plot': 'Bound by a shared destiny, a teen bursting with scientific curiosity and a former boy-genius inventor embark on a mission to unearth the secrets of a place somewhere in time and space that exists in their collective memory.', 'title': 'Tomorrowland', 'score': 0.7669923901557922} 9 {'plot': 'With the help of his uncle, a man travels to the future to try and bring his girlfriend back to life.', 'title': 'Love Story 2050', 'score': 0.7649372816085815} 10 {'plot': 'A dimension-traveling wizard gets stuck in the 21st century because cell-phone radiation interferes with his magic. With his home world on the brink of war, he seeks help from a jaded ...', 'title': 'The Portal', 'score': 0.7640786170959473}