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Lexicon and Lexical Rules in HPSG. Evgenia Ivanova eivanova@sfs.uni-tuebingen.de February 7, 2007. Outline. 2 types of lexical generalizations Basic Lexicon and its status Extending the Lexicon with MLR with DLR Open Questions References. Lexical Generalizations.
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Lexicon and Lexical Rules in HPSG Evgenia Ivanova eivanova@sfs.uni-tuebingen.de February 7, 2007
Outline • 2 types of lexical generalizations • Basic Lexicon and its status • Extending the Lexicon with MLR with DLR • Open Questions • References
Lexical Generalizations • Horizontal Generalizations • Vertical Generalizations
Horizontal Generalizations • Lexical rules • If there is a grammatical word described by D then the corresponding words E’ are also grammatical
Lexical Generalizations • Horizontal Generalizations • Vertical Generalizations
Vertical Generalizations • Lexical principles • If a word is described by D, then it is also described by E
Vertical Generalizations Complex vs type antecedents
Vertical Generalizations • Complex vs type antecedents
Vertical Generalizations • Complex vs type antecedents
Vertical Generalizations • Complex vs type antecedents
Outline • 2 types of lexical generalizations • Basic Lexicon and its status • Extending the Lexicon with MLR with DLR • Open Questions • References
Basic Lexicon • Lexicon external to the theory • Lexicon internal to the theory
Basic Lexicon - Lexicon external to the theory • Extra set of descriptions of word objects • G = <Σ, Θ, L>
Basic Lexicon - Lexicon internal to the theory • Ordinary implicational constraint on word objects • Word Principle wordD1 V D2 V…V Dn
Outline • 2 types of lexical generalizations • Basic Lexicon and its status • Extending the Lexicon with MLR with DLR • Open Questions • References
Extending the Lexicon • MLR – Meta-Level Lexical Rules (lexical entries) • DLR – Description-Level Level Rules (word objects)
Extending the Lexicon with MLR • R = {r1,…rn} (binary relations) • B = {β1…βn} (base lexical entries) • L: (full set of lexical entries) B<L for all λin L and r in R such that r(λ,φ) in L
Extending the Lexicon with DLR • Binary relations between word objects • Integration of lexical rules at the same level as the other grammatical constraints
Extending the Lexicon with DLR • Change the Signature
Outline • 2 types of lexical generalizations • Basic Lexicon and its status • Extending the Lexicon with MLR with DLR • Open Questions • References
Open Questions • Distinguishing between lexical and structural information • Status of the input of the lexical rule • “Phantom” lexical entries
References • [Meurers, 2000] Lexical Generalizations in the Syntax of German Non-Finite Constructions.Phil. Dissertation, Eberhard-Karls-Universität Tübingen [p.103-135]