---
configs:
  - config_name: ground_truth
    data_files:
      - split: train
        path: data/ground_truth.jsonl
  - config_name: query_personalization_0
    data_files:
      - split: train
        path: data/query_personalization_0.jsonl
  - config_name: query_personalization_1
    data_files:
      - split: train
        path: data/query_personalization_1.jsonl
  - config_name: query_personalization_2
    data_files:
      - split: train
        path: data/query_personalization_2.jsonl
  - config_name: user_history
    data_files:
      - split: train
        path: data/user_history.jsonl
---

# Persona2Web: Benchmarking Personalized Web Agents for Contextual Reasoning with User History

[Paper](https://arxiv.org/abs/2602.17003) | [Project Page](https://serin-kimm.github.io/Persona2Web/) | [GitHub Repository](https://github.com/serin-kimm/Persona2Web)

**Persona2Web** is a benchmark for evaluating personalized web agents on the real open web.

## Dataset Structure

```text
Data/
├── README.md
├── data/
│   ├── ground_truth.jsonl
│   ├── query_personalization_0.jsonl
│   ├── query_personalization_1.jsonl
│   ├── query_personalization_2.jsonl
│   └── user_history.jsonl
├── ground_truth/
│   └── *.json  150 files
├── query/
│   ├── personalization_0/
│   │   └── *.json  150 files
│   ├── personalization_1/
│   │   └── *.json  150 files
│   └── personalization_2/
│       └── *.json  150 files
└── user_history/
    └── *.json  50 files
```

## Data Components

### `data/`

The `data/` directory provides JSONL versions of the main dataset components for convenient loading and processing.

- `ground_truth.jsonl` contains the ground-truth personalization information for all tasks.
- `query_personalization_0.jsonl` contains Level 0 queries, where both website and preference constraints are explicit.
- `query_personalization_1.jsonl` contains Level 1 queries, where preference constraints are explicit while website information is masked.
- `query_personalization_2.jsonl` contains Level 2 queries, where both website and preference constraints are masked.
- `user_history.jsonl` contains user histories that reveal preferences implicitly through behavioral patterns.

### `ground_truth/`

The `ground_truth/` directory contains 150 individual JSON files, one for each Persona2Web task. Each file provides the reference information used to evaluate whether the agent correctly resolves the personalized query.

### `query/`

The `query/` directory contains task queries organized by ambiguity level.

- `personalization_0/` contains 150 clear queries with explicit website and preference constraints.
- `personalization_1/` contains 150 queries where the website is masked and must be inferred from user history.
- `personalization_2/` contains 150 fully ambiguous queries where both website and preference constraints must be inferred from user history.

### `user_history/`

The `user_history/` directory contains 50 JSON files of browsing-style user histories. These histories provide contextual user behavior over long time spans, where preferences are embedded implicitly rather than stated as explicit profile descriptions.