Metarules - Revision history

NaumSven: /* Example */

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Example

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Example

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 VP <math>\rightarrow</math> ''W'', NP <math>\Rightarrow </math> VP[PAS] <math>\rightarrow</math> ''W'', (PP[by])
-The ''Complement Omission Metarule'' deletes optional complements of nouns,
+The ''Complement Omission Metarule'' deletes the complements of a noun,
 [+N, BAR 1] <math>\rightarrow</math> N, W <math>\Rightarrow </math> [+N, BAR 1] <math>\rightarrow</math> N

@@ Line 14: / Line 14: @@
 ''W''  is a variable ranging over a multiset of categories.
-===Literatur===
+===References===
 *Uszkoreit, H. 1986. Constraints on Order. ''Linguistics'' 24, 883–906.
 *Volk, M. 1988. Parsing German with GPSG: The Problem of Separable-Prefix Verbs. Diss. Univ. of Georgia.

← Older revision		Revision as of 09:52, 14 February 2008
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	''W'' is a variable ranging over a multiset of categories.		''W'' is a variable ranging over a multiset of categories.
		+
		+	===Literatur===
		+	*Uszkoreit, H. 1986. Constraints on Order. ''Linguistics'' 24, 883–906.
		+	*Volk, M. 1988. Parsing German with GPSG: The Problem of Separable-Prefix Verbs. Diss. Univ. of Georgia.
		+	*Weisweber, W. 1992. Direct Parsing with Metarules. KIT-Report 102, ''TUB'' [& Internationale Konferenz für Computerlinguistik (COLING), Nantes 1992, S. 1111–1115].

	===Other Languages===		===Other Languages===

← Older revision		Revision as of 09:51, 14 February 2008
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	VP <math>\rightarrow</math> ''W'', NP <math>\Rightarrow </math> VP[PAS] <math>\rightarrow</math> ''W'', (PP[by])		VP <math>\rightarrow</math> ''W'', NP <math>\Rightarrow </math> VP[PAS] <math>\rightarrow</math> ''W'', (PP[by])
		+
		+	The ''Complement Omission Metarule'' deletes optional complements of nouns,
		+
		+	[+N, BAR 1] <math>\rightarrow</math> N, W <math>\Rightarrow </math> [+N, BAR 1] <math>\rightarrow</math> N
		+
		+	accounting for the fact that (in English) the arguments of a noun are optional.

	''W'' is a variable ranging over a multiset of categories.		''W'' is a variable ranging over a multiset of categories.

← Older revision		Revision as of 15:42, 20 September 2007
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−	Metarules are used in [[Generalized Phrase Structure Grammar]] to capture structural generalizations in a similar way transformational rules did in earley transformational grammar. Unlike transformational ~~grammars~~ they don't map structural description onto (new) structural descriptions, but generate new lexical ID rules on the basis of given ones.	+	Metarules are used in [[Generalized Phrase Structure Grammar]] to capture structural generalizations in a similar way transformational rules did in earley transformational grammar. Unlike transformational rules they don't map structural description onto (new) structural descriptions, but generate new lexical ID rules on the basis of given ones.

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

@@ Line 2: / Line 2: @@
 ===Example===
-The ''Passive Metarule'' is used to generate for each VP-rule introducing a transitive verb a new lexical ID rule which introduces a passive verb form accompanied by the same phrases, except that the direct object replaced by an optional PP.
+The ''Passive Metarule'' is used to generate for each VP-rule introducing a transitive verb a new lexical ID rule which introduces a passive verb form accompanied by the same phrases, except that the direct object replaced by an optional PP:
 VP <math>\rightarrow</math> ''W'', NP <math>\Rightarrow </math> VP[PAS] <math>\rightarrow</math> ''W'', (PP[by])

@@ Line 4: / Line 4: @@
 The ''Passive Metarule'' is used to generate for each VP-rule introducing a transitive verb a new lexical ID rule which introduces a passive verb form accompanied by the same phrases, except that the direct object replaced by an optional PP.
-VP <math>\rightarrow</math> W, NP <math>\Rightarrow </math> VP[PAS] <math>\rightarrow</math> W, (PP[by])
+VP <math>\rightarrow</math> ''W'', NP <math>\Rightarrow </math> VP[PAS] <math>\rightarrow</math> ''W'', (PP[by])
 W is a variable ranging over a multiset of categories.
 ===Other Languages===