ID/LP rules - Revision history

NBlöcher: Marked as {{ref}}

2014-07-03T20:45:36Z

Marked as {{ref}}

NaumSven: /* Comment */

2007-08-17T18:17:09Z

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NaumSven: /* Example */

2007-08-17T18:16:39Z

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NaumSven: /* Example */

2007-08-17T18:14:58Z

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NaumSven: /* Example */

2007-08-17T18:06:08Z

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NaumSven: /* Example */

2007-08-17T18:04:49Z

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NaumSven: /* Comment */

2007-08-17T17:58:12Z

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NaumSven: /* Comment */

2007-08-17T17:45:15Z

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NaumSven: /* Comment */

2007-08-17T17:16:26Z

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NaumSven at 16:01, 16 August 2007

2007-08-16T16:01:43Z

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 ===Other Languages===
 * German [[ID/LP-Regeln]]
-{{dc}}
+{{dc}}{{ref}}
 [[Category:Syntax]]

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 ===Comment===
-Replacing contextfree rules by ID- and LP-rules was motivated by the idea that by this division of labor it is possible to state important generalization concerning the word order (constituent order) for a given natural language ''explicitly''.
+Replacing context-free rules by ID- and LP-rules was motivated by the idea that by this division of labor it is possible to state important generalization concerning the word order (constituent order) for a given natural language ''explicitly''.
 Each ID/LP-syntax can be converted into a [[strongly equivalent]] context-free phrase structure syntax. As the linear restrictions expressed by LP-rules are interpreted ''globally'' (no local tree licenced by any ID-rule may violate any of the LP-rules), there are context-free grammars which can not be converted into a strongly equivalent ID/LP-grammar (though into a [[weakly equivalent]] ID/LP-syntax).

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 ===Example===
-A context-free phrase structure rule can be interpreted as a well-formedness condition for [[local tree|local trees]]. A rule like ''X'' <math>\rightarrow</math> <math>Y_1</math> <math>Y_2</math> ... <math>Y_n</math> licences exactly one tree. This tree is characterised by two facts: (i). The root labelled <math>X</math> (directly) dominates the nodes labelled <math>Y_1</math> ... <math>Y_n</math> and (ii). The node labelled <math>Y_i </math> precedes node <math>Y_{i+1}</math> (for i = 1, ... n-1).
+Context-free phrase structure rules can be interpreted as well-formedness conditions for [[local tree|local trees]]. A rule like ''X'' <math>\rightarrow</math> <math>Y_1</math> <math>Y_2</math> ... <math>Y_n</math> licences exactly one tree. This tree is characterised by two facts: (i). The root labelled <math>X</math> (directly) dominates the nodes labelled <math>Y_1</math> ... <math>Y_n</math> and (ii). The node labelled <math>Y_i </math> precedes node <math>Y_{i+1}</math> (for i = 1, ... n-1).
 An ID-rule ''X'' <math>\rightarrow</math> <math>Y_1,</math> <math>Y_2,</math> ..., <math>Y_n </math> on the other hand, licences all trees in which ''X'' dominates the other categories, no matter in which order these categories appear. An LP-rule restrains the set of local trees licenced by an ID-rule: Each tree which violates the LP-rule is disregarded.

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 ===Example===
-Wenn man kontextfreie Phrasenstrukturregeln als Wohlgeformtheitsbedingungen für (lokale) Bäume auffasst, dann lässt eine Regel der Form ''X'' <math>\rightarrow</math> <math>Y_1</math> <math>Y_2</math> ... <math>Y_n</math> genau einen Baum zu. Für diesen Baum gilt: (a) Die Kategorie <math>X</math> dominiert die Kategorien <math>Y_1</math> ... <math>Y_n</math> und (b) Die Kategorie <math>Y_i </math> steht vor der Kategorie <math>Y_{i+1}</math> (für i = 1, ... n-1).
+A context-free phrase structure rule can be interpreted as a well-formedness condition for [[local tree|local trees]]. A rule like ''X'' <math>\rightarrow</math> <math>Y_1</math> <math>Y_2</math> ... <math>Y_n</math> licences exactly one tree. This tree is characterised by two facts: (i). The root labelled <math>X</math> (directly) dominates the nodes labelled <math>Y_1</math> ... <math>Y_n</math> and (ii). The node labelled <math>Y_i </math> precedes node <math>Y_{i+1}</math> (for i = 1, ... n-1).
 An ID-rule ''X'' <math>\rightarrow</math> <math>Y_1,</math> <math>Y_2,</math> ..., <math>Y_n </math> on the other hand, licences all trees in which ''X'' dominates the other categories, no matter in which order these categories appear. An LP-rule restrains the set of local trees licenced by an ID-rule: Each tree which violates the LP-rule is disregarded.

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 Wenn man kontextfreie Phrasenstrukturregeln als Wohlgeformtheitsbedingungen für (lokale) Bäume auffasst, dann lässt eine Regel der Form ''X'' <math>\rightarrow</math> <math>Y_1</math> <math>Y_2</math> ... <math>Y_n</math> genau einen Baum zu. Für diesen Baum gilt: (a) Die Kategorie <math>X</math> dominiert die Kategorien <math>Y_1</math> ... <math>Y_n</math> und (b) Die Kategorie <math>Y_i </math> steht vor der Kategorie <math>Y_{i+1}</math> (für i = 1, ... n-1).
-An ID-rule ''X'' <math>\rightarrow</math> <math>Y_1,</math> <math>Y_2,</math> ..., <math>Y_n </math> on the other hand, licences all trees in which ''X'' dominates the other categories, no matter in which order these categories appear. An LP-rule restrains the set of local trees licenced by an ID-rule: Each tree which violates this rule is considered as unadmissible.
+An ID-rule ''X'' <math>\rightarrow</math> <math>Y_1,</math> <math>Y_2,</math> ..., <math>Y_n </math> on the other hand, licences all trees in which ''X'' dominates the other categories, no matter in which order these categories appear. An LP-rule restrains the set of local trees licenced by an ID-rule: Each tree which violates the LP-rule is disregarded.
 ===Comment===

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 ===Comment===
-Ein wichtiges Motiv für die Entwicklung des ID/LP-Formats war die Überzeugung, dass auf diese Weise viele der für eine Sprache geltenden Wort- bzw. Konstituentenstellungsregularitäten explizit formulierbar seien.
+Replacing contextfree rules by ID- and LP-rules was motivated by the idea that by this division of labor it is possible to state important generalization concerning the word order (constituent order) for a given natural language ''explicitly''.
-Each ID/LP-syntax can be converted into a [[strongly equivalent]] context-free phrase structure syntax. As the linear restrictions expressed by the LP-rules  formulierten Linearisierungsvorschriften ''globale'' Geltung besitzen - no admissible local tree may Baum darf eine dieser Regeln verletzen - gibt es kontextfreie Syntaxen, die nicht in eine start äquivalente ID/LP-Syntax (wohl aber eine [[schwach äquivalente]] ID/LP-Syntax) konvertiert werden können.
+Each ID/LP-syntax can be converted into a [[strongly equivalent]] context-free phrase structure syntax. As the linear restrictions expressed by LP-rules are interpreted ''globaly'' Geltung besitzen - no admissible local tree may Baum darf eine dieser Regeln verletzen - gibt es kontextfreie Syntaxen, die nicht in eine start äquivalente ID/LP-Syntax (wohl aber eine [[schwach äquivalente]] ID/LP-Syntax) konvertiert werden können.
 In modifizierter Form werden ID/LP-Regeln auch in der [[HPSG|Head-Driven Phrase Structure Grammar]] verwendet. Andere Regelformate für die Trennung von unmittelbarer Dominanz und linearer Präzedenz finden sich in der [[funktionale Unifikationsgrammatik]] und in einem Vorschlag für die Erweiterung der [[Lexikalisch-funktionale Grammatik|lexikalisch-funktionalen Grammatik]].

← Older revision		Revision as of 16:01, 16 August 2007
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−	[[Generalized Phrase Structure Grammar]] (GPSG) uses [[ID-~~rules~~\|ID-~~rule~~]] (''immediate dominance rules'') and [[LP-rule\|LP-rules]] (''linear precedence rules'') instead of context-free phrase structure rules to describe hierarchical and sequential aspects of linguistic units separately.	+	[[Generalized Phrase Structure Grammar]] (GPSG) uses [[ID-rule\|ID-rules]] (''immediate dominance rules'') and [[LP-rule\|LP-rules]] (''linear precedence rules'') instead of context-free phrase structure rules to describe hierarchical and sequential aspects of linguistic units separately.

	===Example===		===Example===