// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

edition = "2023";

package optimization_guide.proto;

option optimize_for = LITE_RUNTIME;

message PassageEmbeddingsModelMetadata {
  // The size of the input window expected by the model.
  uint32 input_window_size = 1 [features.field_presence = IMPLICIT];

  // The size (length) of the output embeddings.
  uint32 output_size = 2 [features.field_presence = IMPLICIT];

  // The similarity score threshold that two embeddings must exceed to be
  // considered a match. Must be within [0.0, 1.0] since that is the range of
  // all passage embeddings similarity scores.
  double score_threshold = 3 [features.field_presence = IMPLICIT];
}