SenWorld: A Digital-Twin Simulation for Generating Context-Rich Evaluation Data

SenWorld is a digital-twin simulation designed to generate context-rich evaluation data for smartphone personal assistants. It addresses the challenge of evaluating these systems, which rely on sensitive personal data, by creating a synthetic environment where 'personas' interact with a world built from real-world data (maps, weather, holidays, network data). This simulation provides ground truth for evaluation through fixed construction and full-system snapshots, avoiding privacy concerns associated with real device traces and the limitations of post-hoc annotation or large language model judges.

Why it matters

The development of robust and privacy-preserving evaluation methodologies is critical for advancing AI-driven personal assistant technologies. SenWorld offers a scalable solution for generating high-quality, context-rich data with inherent ground truth, which can accelerate development cycles and improve the reliability of these systems without compromising user privacy.

Key insights

• Smartphone personal assistants require context-rich evaluation data.
• Real device traces are too privacy-sensitive for sharing and evaluation.
• SenWorld offers a digital-twin simulation approach to generate necessary evaluation data.
• The simulation is physically grounded, deterministic, and event-sourced.
• It constructs a daily life for 'personas' using real map, weather, holiday, and network data.
• SenWorld archives all observable signals in full-system snapshots.
• Evaluation cases are labeled by pointers to existing records, ensuring ground truth.
• This method avoids post-hoc annotation or reliance on Large Language Model (LLM) judges for evaluation.

Source

arXiv — Computers and Society — https://arxiv.org/abs/2607.19949