Cloud Firestore V1 Client - Class DistanceMeasure (1.43.3)

Reference documentation and code samples for the Cloud Firestore V1 Client class DistanceMeasure.

The distance measure to use when comparing vectors.

Protobuf type google.firestore.v1.StructuredQuery.FindNearest.DistanceMeasure

Should not be set.

Generated from protobuf enum DISTANCE_MEASURE_UNSPECIFIED = 0;

Measures the EUCLIDEAN distance between the vectors. See Euclidean to learn more

Generated from protobuf enum EUCLIDEAN = 1;

Compares vectors based on the angle between them, which allows you to measure similarity that isn't based on the vectors magnitude.

We recommend using DOT_PRODUCT with unit normalized vectors instead of COSINE distance, which is mathematically equivalent with better performance. See Cosine Similarity to learn more.

Generated from protobuf enum COSINE = 2;

Similar to cosine but is affected by the magnitude of the vectors. See Dot Product to learn more.

Generated from protobuf enum DOT_PRODUCT = 3;