adj.not arranged in order hierarchically
同义词：ungradedunordered
Logics for Unranked Trees: An Overview
Logics for Unranked Trees: An Overview
Logics for Unranked Trees: An Overview
Querying Unranked Trees with Stepwise Tree Automata
Querying Unranked Trees with Stepwise Tree Automata
Deterministic Automata on Unranked Trees
Typechecking Top-Down Uniform Unranked Tree Transducers
Typechecking Top-Down Uniform Unranked Tree Transducers
On the minimization of XML Schemas and tree automata for unranked trees ☆
Information extraction from web documents based on local unranked tree automaton inference
