Work

Deriving Character Logic from Storyline as Codified Decision Trees

Year: 2026
Type: conference-paper
Abstract: Role-playing (RP) agents rely on behavioral profiles to act consistently across diverse narrative contexts, yet existing profiles are largely unstructured, non-executable, and weakly validated, leading to brittle agent behavior.We propose Codified Decision Trees (CDT), a datadriven framework that induces an executable and interpretable decision structure from largescale narrative data.CDT represents behavioral profiles as a tree of conditional rules, where internal nodes correspond to validated scene conditions and leaves encode grounded behavioral statements, enabling deterministic retrieval of context-appropriate rules at execution time.The tree is learned by iteratively inducing candidate scene-action rules, validating them against data, and refining them through hierarchical specialization, yielding profiles that support transparent inspection and principled updates.Across multiple benchmarks, CDT substantially outperforms human-written profiles and prior profile induction methods on 85 characters across 16 artifacts, indicating that codified and validated behavioral representations lead to more reliable agent grounding.1
Language: English
Open Access status: hybrid
OpenAlex ID: W7166863305
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