README.md

---
configs:
  - config_name: samples
    data_files:
      - split: test
        path:
          - samples/*/query.json
  - config_name: protected
    data_files:
      - split: test
        path:
          - protected/*/test.json
  - config_name: validation
    data_files:
      - split: test
        path:
          - protected/*/validation.json
task_categories:
  - text-to-image
paper_ids:
  - "2603.01493"
---

## Quick Links

<p align="center">
  🏠 <a href="https://github.com/LaVieEnRose365/PhotoBench"><strong>GitHub</strong></a> ·
  📄 <a href="https://arxiv.org/abs/2603.01493v1"><strong>arXiv</strong></a> ·
  🏅 <a href="https://huggingface.co/spaces/SorrowTea/PhotoBench/"><strong>Leaderboard</strong></a> ·
  📦 <a href="https://huggingface.co/datasets/SorrowTea/PhotoBench"><strong>Dataset</strong></a> ·
  🏅 <a href="https://huggingface.co/spaces/SorrowTea/PhotoBench-Protected/"><strong>Protected Leaderboard</strong></a> ·
  📦 <strong>Protected Dataset</strong> ·
  🖼️ Raw Images: <a href="https://sbox.myoas.com/l/Be5be4053f6b43840"><strong>obox</strong></a> · <a href="https://drive.google.com/drive/folders/1IyAlRskgnXG6pJ7fYL5Ie0SFDKZ95-cI?usp=drive_link"><strong>Google Drive</strong></a> (pwd: Oppo2026)
</p>

---

# PhotoBench-Protected Dataset Overview

PhotoBench-Protected is the limited-information release of PhotoBench, the first benchmark constructed from authentic, personal albums for personalized multi-source intent-driven photo retrieval. This release provides pre-computed captions, embeddings, and metadata for agent-based evaluation.

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/
    │   ├── test.json        # test queries for leaderboard evaluation
    │   ├── validation.json  # validation queries for local self-testing
    │   ├── query.json       # all queries (test + validation combined)
    │   └── 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/
```

## Test vs. Validation Split

To prevent data leakage and overfitting, the **protected release strictly separates test and validation queries**:

- **`test.json`** — Queries used for official leaderboard evaluation. Submit predictions for these queries to the [Protected Leaderboard](https://huggingface.co/spaces/SorrowTea/PhotoBench-Protected/).
- **`validation.json`** — Queries for local self-testing only. These **will not** be scored on the leaderboard.
- **`query.json`** — Combined set of all queries (test + validation) for convenience.

> **Why this split?** The [full PhotoBench dataset](https://huggingface.co/datasets/SorrowTea/PhotoBench) provides `validation.json` with ground-truth annotations so you can tune your model locally. To ensure fair comparison, the protected leaderboard **only evaluates on `test.json`** queries. Do not train or tune on test queries.

## Files and Field Definitions

### protected/test.json
- Type: list of query objects for leaderboard evaluation.
- Key fields:
  - `query_cn`: text of the retrieval intent (Chinese).
  - `query_en`: text of the retrieval intent (English).
  - `Location`, `Time`, `Person`, `Object`, `Concept`, `Genre`: dimension annotations.
  - `Source`: source category label.

### protected/validation.json
- Same structure as `test.json`.
- For local self-evaluation only; **not** evaluated on the leaderboard.

### protected/query.json (album-level, all queries)
- Combined test + validation queries.
- Contains the same query fields as `test.json`.

### 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.

## Submission Format

When submitting to the leaderboard, combine queries from all albums into a **single JSON array** and add the `album_id` field to each query object:

```json
[
  {
    "album_id": "1",
    "query_en": "cluttered desk",
    "pred": ["IMG_1234.jpg", "IMG_5678.jpg", ...]
  },
  {
    "album_id": "2",
    "query_en": "girl in purple sweater",
    "pred": ["IMG_9012.jpg", ...]
  }
]
```

**Important:**
- `album_id` must be `"1"`, `"2"`, or `"3"`.
- `query_en` must match exactly (case-sensitive).
- `pred` is an **ordered** list of predicted image filenames. Order matters for NDCG.
- Only full submissions (all 3 albums, all test queries) are eligible for public leaderboard ranking.