Differential logic programs: semantics and programming methodologies
Abstract: "The purpose of this paper is to make a contribution towards the integration of Object-Orientation and logic programming. We introduce the notion of differential programs, logic programs annotated to make their external interfaces explicit. Similarly to classes in the O-O paradigm, di...
Gespeichert in:
| Format: | Buch |
|---|---|
| Sprache: | English |
| Veröffentlicht: |
Amsterdam
1993
|
| Schriftenreihe: | Centrum voor Wiskunde en Informatica <Amsterdam> / Department of Computer Science: Report CS
93,63 |
| Schlagworte: | |
| Zusammenfassung: | Abstract: "The purpose of this paper is to make a contribution towards the integration of Object-Orientation and logic programming. We introduce the notion of differential programs, logic programs annotated to make their external interfaces explicit. Similarly to classes in the O-O paradigm, differential programs can be organized in isa hierarchies. The isa-composition of differential programs captures the semantics of several mechanisms such as static and dynamic overriding inheritance as well as a form of extension inheritance defined in term of composition by union of clauses. The application of the programming discipline we propose is illustrated on a concrete programming example We give a proof-theoretic semantics for isa-hierarchies: we define an inference system which extends SLD resolution to take into account the inheritance mechanisms encompassed by the isa operator. Then we introduce a corresponding operator which provides a syntactic counterpart of the isa-composition. The new operator, denoted by [symbol], transforms any isa hierarchy HP into an equivalent 'flat' program HP[subscript [symbol]] whose proof theoretic semantics is defined in terms of the standard notion of SLD derivation. Finally we define a fixed point semantics which is [symbol]-compositional and which models correctly the answer substitutions of programs By virtue of the aforesaid correspondence between isa-hierarchies and [symbol]-composite programs, we obtain a compositional semantics for isa hierarchies. The semantics of differential programs generalizes previous work on OR-compositional semantics for logic programs. It is obtained by resorting to the notion of context-sensitive interpretations, an extension of the [omega]-denotations of [3] defined as sets of non- ground clauses. |
| Beschreibung: | 49 S. |
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| 490 | 1 | |a Centrum voor Wiskunde en Informatica <Amsterdam> / Department of Computer Science: Report CS |v 93,63 | |
| 520 | 3 | |a Abstract: "The purpose of this paper is to make a contribution towards the integration of Object-Orientation and logic programming. We introduce the notion of differential programs, logic programs annotated to make their external interfaces explicit. Similarly to classes in the O-O paradigm, differential programs can be organized in isa hierarchies. The isa-composition of differential programs captures the semantics of several mechanisms such as static and dynamic overriding inheritance as well as a form of extension inheritance defined in term of composition by union of clauses. The application of the programming discipline we propose is illustrated on a concrete programming example | |
| 520 | 3 | |a We give a proof-theoretic semantics for isa-hierarchies: we define an inference system which extends SLD resolution to take into account the inheritance mechanisms encompassed by the isa operator. Then we introduce a corresponding operator which provides a syntactic counterpart of the isa-composition. The new operator, denoted by [symbol], transforms any isa hierarchy HP into an equivalent 'flat' program HP[subscript [symbol]] whose proof theoretic semantics is defined in terms of the standard notion of SLD derivation. Finally we define a fixed point semantics which is [symbol]-compositional and which models correctly the answer substitutions of programs | |
| 520 | 3 | |a By virtue of the aforesaid correspondence between isa-hierarchies and [symbol]-composite programs, we obtain a compositional semantics for isa hierarchies. The semantics of differential programs generalizes previous work on OR-compositional semantics for logic programs. It is obtained by resorting to the notion of context-sensitive interpretations, an extension of the [omega]-denotations of [3] defined as sets of non- ground clauses. | |
| 650 | 4 | |a Logic programming | |
| 650 | 4 | |a Object-oriented programming (Computer science) | |
| 700 | 1 | |a Bossi, Annalisa |d 1948- |e Sonstige |0 (DE-588)122034961 |4 oth | |
| 810 | 2 | |a Department of Computer Science: Report CS |t Centrum voor Wiskunde en Informatica <Amsterdam> |v 93,63 |w (DE-604)BV008928356 |9 93,63 | |
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| id | DE-604.BV010176890 |
| illustrated | Not Illustrated |
| indexdate | 2024-07-09T17:47:50Z |
| institution | BVB |
| language | English |
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| oclc_num | 31237718 |
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| publishDate | 1993 |
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| series2 | Centrum voor Wiskunde en Informatica <Amsterdam> / Department of Computer Science: Report CS |
| spelling | Differential logic programs semantics and programming methodologies Amsterdam 1993 49 S. txt rdacontent n rdamedia nc rdacarrier Centrum voor Wiskunde en Informatica <Amsterdam> / Department of Computer Science: Report CS 93,63 Abstract: "The purpose of this paper is to make a contribution towards the integration of Object-Orientation and logic programming. We introduce the notion of differential programs, logic programs annotated to make their external interfaces explicit. Similarly to classes in the O-O paradigm, differential programs can be organized in isa hierarchies. The isa-composition of differential programs captures the semantics of several mechanisms such as static and dynamic overriding inheritance as well as a form of extension inheritance defined in term of composition by union of clauses. The application of the programming discipline we propose is illustrated on a concrete programming example We give a proof-theoretic semantics for isa-hierarchies: we define an inference system which extends SLD resolution to take into account the inheritance mechanisms encompassed by the isa operator. Then we introduce a corresponding operator which provides a syntactic counterpart of the isa-composition. The new operator, denoted by [symbol], transforms any isa hierarchy HP into an equivalent 'flat' program HP[subscript [symbol]] whose proof theoretic semantics is defined in terms of the standard notion of SLD derivation. Finally we define a fixed point semantics which is [symbol]-compositional and which models correctly the answer substitutions of programs By virtue of the aforesaid correspondence between isa-hierarchies and [symbol]-composite programs, we obtain a compositional semantics for isa hierarchies. The semantics of differential programs generalizes previous work on OR-compositional semantics for logic programs. It is obtained by resorting to the notion of context-sensitive interpretations, an extension of the [omega]-denotations of [3] defined as sets of non- ground clauses. Logic programming Object-oriented programming (Computer science) Bossi, Annalisa 1948- Sonstige (DE-588)122034961 oth Department of Computer Science: Report CS Centrum voor Wiskunde en Informatica <Amsterdam> 93,63 (DE-604)BV008928356 93,63 |
| spellingShingle | Differential logic programs semantics and programming methodologies Logic programming Object-oriented programming (Computer science) |
| title | Differential logic programs semantics and programming methodologies |
| title_auth | Differential logic programs semantics and programming methodologies |
| title_exact_search | Differential logic programs semantics and programming methodologies |
| title_full | Differential logic programs semantics and programming methodologies |
| title_fullStr | Differential logic programs semantics and programming methodologies |
| title_full_unstemmed | Differential logic programs semantics and programming methodologies |
| title_short | Differential logic programs |
| title_sort | differential logic programs semantics and programming methodologies |
| title_sub | semantics and programming methodologies |
| topic | Logic programming Object-oriented programming (Computer science) |
| topic_facet | Logic programming Object-oriented programming (Computer science) |
| volume_link | (DE-604)BV008928356 |
| work_keys_str_mv | AT bossiannalisa differentiallogicprogramssemanticsandprogrammingmethodologies |