Naive Semantics (ADF)
A three-valued interpretation of an ADF is a naive model iff is conflict-free and there is no conflict-free model such that in the information ordering.
Reference
Strass, H. & Wallner, J.P. (2015). Analyzing the Computational Complexity of Abstract Dialectical Frameworks via Approximation Fixpoint Theory. Artificial Intelligence, 226, pp. 34–74.