A Comparative Introduction to XDG: The Immediate Dominance Dimension in Action

Ralph Debusmann

Description

A Comparative Introduction to XDG: The Immediate Dominance Dimension in Action Ralph Debusmann and Denys Duchier Programming Systems Lab, Saarland University, Saarbr ?ucken, Germany and ·Equipe Calligramme, LORIA, Nancy, France A Comparative Introduction to XDG: The Immediate Dominance Dimension in Action – p.1

• lexical classes


• defdim id


• multi-dimensional grammar


• engineering ?


• software engineering perspective


• into individual lexical

Informations

• Publié par: pefav
• Nombre de lectures: 36
• Langue: English

Extrait

A Comparative Introduction to XDG: The
Immediate Dominance Dimension in Action
Ralph Debusmann
and
Denys Duchier
Programming Systems Lab, Saarland University, Saarbruc¤ ken, Germany
and
·
Equipe Calligramme, LORIA, Nancy, France
A Comparative Introduction to XDG: The Immediate Dominance Dimension in Action ? p.1This presentation

introduce the XDG Development Kit (XDK)

the XDK provides:

facilities to cook your own multi-dimensional grammar
formalism

metagrammar facilities to organize the lexicon effectively

implement an example grammar fragment made up of the
dimensions id and lex
A Comparative Introduction to XDG: The Immediate Dominance Dimension in Action ? p.2XDK: Making life easy

for grammar writers

adopts a software engineering perspective to ease grammar
engineering:

modules (dimensions, principles, lexical abstractions)

re-usability

composition
A Comparative Introduction to XDG: The Immediate Dominance Dimension in Action ? p.3Structuring the lexicon

unfeasible to write the individual lexical entries directly

abstractions: lexical classes

combining the descriptions:

conjunction (inheritance)

disjunction (alternations)

descriptions compiled into individual lexical entries

two goals:

improve grammar engineering

enable the statement of linguistic generalizations
A Comparative Introduction to XDG: The Immediate Dominance Dimension in Action ? p.4De ning a dimension
defdim id f
%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% define types
...
%%%%%%%%%%%%%%%
%% use principles
...
g
A Comparative Introduction to XDG: The Immediate Dominance Dimension in Action ? p.5De ning types

XDK: provides static typing to ensure the coherence of the
grammar, ease debugging:

need to de ne types

for each dimension

e.g. domains, type constructors for sets, records etc.

three special types picked out for each dimension:

edge labels

lexical entry record

node attributes record

each node:
" #
entry : :::
attrs : :::
A Comparative Introduction to XDG: The Immediate Dominance Dimension in Action ? p.6De ning types contd.

XDK: multi-dimensional

i.e. for each node:
" #
2 3
entry : :::
dim :
1
6 7
6 attrs : ::: 7
6 7
6 7
:::
6 7
" #
6 7
entry : :::
4 5
dim :
n
attrs : :::
A Comparative Introduction to XDG: The Immediate Dominance Dimension in Action ? p.7De ning domain types
deftype "id.label" fdet subj obj vbse vprt vinf part rootg
deftype "id.agr" fnom accg

root: additional root node for convenience:
einen roman maria zu schreiben verspricht .
A Comparative Introduction to XDG: The Immediate Dominance Dimension in Action ? p.8
subj
obj
vinf
par
t
det
rootDe ning valency types
valency("id.label")

specialized type constructor for the valency principle
(subcategorization):
" #
in : fsubj?;obj?;iobj?g
Roman :
out : fdet!;adj;prep?;rel?g
A Comparative Introduction to XDG: The Immediate Dominance Dimension in Action ? p.9De ning set types

idea: having two sets, how to combine them? (inheritance)

two natural possibilities:

intersection

union

we want both possibilities for different kinds of sets:

intersective sets

accumulative sets
A Comparative Introduction to XDG: The Immediate Dominance Dimension in Action ? p.10