README.md

metadata

configs:
  - config_name: samples
    data_files:
      - split: test
        path:
          - samples/*/query.json
  - config_name: protected
    data_files:
      - split: test
        path:
          - protected/*/query.json
task_categories:
  - image-retrieval
paper_ids:
  - '2603.01493'

PhotoBench Dataset Overview

This folder provides two components for evaluation and research:

• Samples: a small, display-oriented subset with images for demonstration only.
• Protected: machine-readable features without raw images for local evaluation.

Directory Layout

dataset/
├── README.md            # English overview (this file)
├── README_CN.md         # Chinese overview
├── samples/             # Display subset (per album, 20 queries with display images)
│   ├── album1/
│   │   ├── query.json   # 20 queries with GroundTruth image filenames
│   │   └── images/      # display images referenced by GroundTruth
│   ├── album2/
│   └── album3/
│   ├── README.md
│   └── sample_queries.schema.json
└── protected/           # Features for local evaluation (no raw images)
    ├── album1/
    │   ├── query.json   # all queries (no GroundTruth fields)
    │   └── images/
    │       ├── captions/    # text indices by model
    │       ├── embeddings/  # vector indices by model
    │       ├── metadata/
    │       │   └── metadata.json  # location/time metadata (privacy-preserving)
    │       └── faceid/
    │           ├── face_info_cn.json
    │           ├── face_info_en.json
    │           └── face_id_images/
    ├── album2/
    └── album3/

Files and Field Definitions

samples/query.json (20 per album)

• Type: list of query objects.
• Key fields:
  • Query: text of the retrieval intent.
  • Query_id: query identifier.
  • Album_id: album identifier.
  • Source_type: source category label.
  • Reasoning_type: reasoning category (e.g., location/time/social).
  • GroundTruth: list of image filenames used for display/visualization.
• Purpose: visualization for readers and reviewers; not for training or full scoring.

protected/query.json (album-level, all queries)

• Type: list of query objects.
• Contains the same query fields as the samples version except any GroundTruth-related fields are omitted.

protected/images/captions/

• Per-model text indices for caption-based retrieval.
• Each metadata.json includes:
  • model_name: the name of the caption model.
  • filenames: list of image filenames included in the index.

protected/images/embeddings/

• Per-model vector indices for image embedding retrieval.
• Each metadata.json includes:
  • model_name
  • filenames

protected/images/metadata/metadata.json

• Privacy-preserving location and time metadata for images.
• Fields:
  • latitude: decimal degrees rounded to approximately 10 meters.
  • longitude: decimal degrees rounded to approximately 10 meters.
  • time: ISO-format timestamp string.

protected/images/faceid/

• Anonymized person information to support social/identity reasoning without exposing raw identities.
• Files:
  • face_info_cn.json / face_info_en.json include:
    • face_id_to_nicknames: mapping from face IDs to anonymized names/nicknames.
    • image_to_face_ids: mapping from image filename to a list of face IDs present.
  • face_id_images/: representative images for face IDs that appear.

Intended Use and Evaluation

• Samples: for display and qualitative understanding; not for model training.
• Protected: for local algorithms to run against machine-readable features.
• Evaluation: submit results (e.g., submission.json) for scoring against hidden GroundTruth.