We study anti-unification for unranked terms and hedges that may contain term and hedge variables. The anti-unification problem of two hedges s1 and s2 is concerned with finding their generalization, a hedge q such that both s1 and s2 are instances of q under some substitutions. Hedge variables help to fill in gaps in generalizations, while term variables abstract single (sub)terms with differe...

In this paper, we define hedge operation on a residuated skew lattice and investigate some its properties. We get relationships between some special sets as dense, nilpotent, idempotent, regular elements sets and their hedges.  By examples, we show that hedge of a dense element is not a dense and hedge of a regular element is not a regular. Also hedge of a nilpotent element is a nilpotent and h...

A hedge is a linguistic device used to avoid using a categorical sentence. Hedges can be used to determine whether a sentence is factual by merely regarding a sentence containing hedges as non-factual. In this paper, we perform a comparative experiment of various classification methods for hedge detection. Among four different classification methods, we observe that SVM shows the best performan...

We study anti-unification for unranked terms and hedges that may contain term and hedge variables. The anti-unification problem of two hedges s̃1 and s̃2 is concerned with finding their generalization, a hedge q̃ such that both s̃1 and s̃2 are instances of q̃ under some substitutions. Hedge variables help to fill in gaps in generalizations, while term variables abstract single (sub)terms with differe...