Anti-unification for unranked terms and hedges
dc.contributor.author
dc.date.accessioned
2017-10-11T06:26:38Z
dc.date.available
2017-10-11T06:26:38Z
dc.date.issued
2014-02
dc.identifier.issn
0168-7433
dc.identifier.uri
dc.description.abstract
We study anti-unification for unranked terms and hedges that may contain term and hedge variables. The anti-unification problem of two hedges -1 and -2 is concerned with finding their generalization, a hedge q such that both -1 and -2 are instances of q under some substitutions. Hedge variables help to fill in gaps in generalizations, while term variables abstract single (sub)terms with different top function symbols. First, we design a complete and minimal algorithm to compute least general generalizations. Then, we improve the efficiency of the algorithm by restricting possible alternatives permitted in the generalizations. The restrictions are imposed with the help of a rigidity function, which is a parameter in the improved algorithm and selects certain common subsequences from the hedges to be generalized. The obtained rigid anti-unification algorithm is further made more precise by permitting combination of hedge and term variables in generalizations. Finally, we indicate a possible application of the algorithm in software engineering
dc.description.sponsorship
This research has been partially supported by the Spanish Ministerio de Economía y Competitividad under the projects HeLo (TIN2012-33042) and TASSAT (TIN2010-20967-C04-01), by the EC FP6 for Integrated Infrastructures Initiatives under the project SCIEnce (contract No. 026133), by the Austrian Science Fund (FWF) under the project SToUT (P 24087-N18), and by the Generalitat de Catalunya under the grant AGAUR 2009-SGR-1434
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Springer Verlag
dc.relation
info:eu-repo/grantAgreement/MINECO//TIN2012-33042/ES/HERRAMIENTAS LOGICAS PARA PROBLEMAS COMBINATORIOS/
info:eu-repo/grantAgreement/MICINN//TIN2010-20967-C04-01/ES/TASSAT: TEORIA, APLICACIONES Y SINERGIA EN SAT, CSP Y FDL/
AGAUR/2009-2013/2009 SGR-1434
dc.relation.isformatof
Reproducció digital del document publicat a: https://doi.org/10.1007/s10817-013-9285-6
dc.relation.ispartof
© Journal of Automated Reasoning, 2014, vol. 52, núm. 2, p. 155-190
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Articles publicats (D-IMA)
dc.rights
Attribution 3.0 Spain
dc.rights.uri
dc.subject
dc.title
Anti-unification for unranked terms and hedges
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.embargo.terms
Cap
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
023997
dc.contributor.funder
dc.relation.ProjectAcronym
dc.identifier.eissn
1573-0670