Predictive Left-to-Right Parsing of a Restricted Variant of TAG(LD/LP)
Arbeitspapiere des SFB 340, Bericht Nr. 45 (1994), 20pp.
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By means of a factorization of linear precedence (LP) information in Tree
Adjoining Grammar (TAG), the possibility to capture syntactic generalizations
can be enhanced, especially with respect to languages which exhibit relative
free word order. In TAG(LD/LP) LP-information is factorized in a way
reminiscent of the ID/LP format of CFGs. However, in contrast to its
context-free counterpart, in TAG(LD/LP) entanglement of constituents is
allowed by admitting not only the permutation of sister nodes, but also
of non-sister nodes in a structural description. In this paper a generalization
of the predictive left-to-right parser for TAG is presented which is able
to handle a restricted variant of TAG(LD/LP), which allows the permutation
of sister nodes and non-sister nodes within elementary structures, the
basic building blocks of TAG(LD/LP).
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