WenSight decision model improves e commerce rule outcomes accuracy

WenSight-Decision-1 for Direct Decisions under E-commerce Rules

Computation and Language

Summary

Making decisions in online shopping often relies on understanding complex rules written in plain language. The authors created WenSight-Decision-1, a model that directly compares possible choices against these rules using examples in six different languages. It learns by using scores as examples and performs better than its predecessor, achieving much higher accuracy on test cases. The model also works well across several different e-commerce decision-making tasks using a unified approach.

What this means in practice

Authors

Mingwen Liu, Jun Sun, Sichen Wang

Abstract

E-commerce decisions require applying natural-language rules to the available case evidence. We introduce WenSight-Decision-1, a shared model that scores supplied options directly from rules and case information for six operational tasks, with examples spanning six languages. We fine-tune Qwen3.5-9B with reference options as supervision, using the same option scores for training and inference. On 1,440 synthetic operational cases reserved for final evaluation, accuracy rises from 61.60% for Qwen3.5-9B to 92.92% for WenSight-Decision-1 under identical inputs and scoring. Joint fine-tuning improves all six tasks, bringing heterogeneous operational judgments under a common decision interface.