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### Résumé

Anti-unification refers to the process of generalizing two (or more) goals into a single, more general, goal that captures some of the structure that is common to all initial goals. In general one is typically interested in computing what is often called a most specific generalization, that is a generalization that captures a maximal amount of shared structure.

In this work we address the problem of anti-unification in CLP, where goals can be seen as unordered sets of atoms and/or constraints. We show that while the concept of a most specific generalization can easily be defined in this context, computing it becomes an NP-complete problem. We subsequently introduce a generalization algorithm that computes a well-defined abstraction whose computation can be bound to a polynomial execution time. Initial experiments show that even a naive implementation of our algorithm produces acceptable generalizations in an efficient way.

In this work we address the problem of anti-unification in CLP, where goals can be seen as unordered sets of atoms and/or constraints. We show that while the concept of a most specific generalization can easily be defined in this context, computing it becomes an NP-complete problem. We subsequently introduce a generalization algorithm that computes a well-defined abstraction whose computation can be bound to a polynomial execution time. Initial experiments show that even a naive implementation of our algorithm produces acceptable generalizations in an efficient way.

langue originale | Anglais |
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Pages (de - à) | 773-789 |

Nombre de pages | 17 |

journal | Theory and Practice of Logic Programming |

Volume | 19 |

Numéro de publication | 5-6 |

Les DOIs | |

Etat de la publication | Publié - 20 sept. 2019 |

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## Projets

## Activités

## 35th International Conference on Logic Programming (ICLP 2019)

Gonzague Yernaux (Participant)

20 sept. 2019 → 25 sept. 2019

Activité: Types de Participation ou d'organisation d'un événement › Participation à une conférence, un congrès

## Anti-unification in Constraint Logic Programming

Gonzague Yernaux (Orateur)

22 sept. 2019

Activité: Types de discours ou de présentation › Présentation orale