| Ivan Sag, and Thomas Wasow. Syntactic Theory: A Formal Introduction. CSLI Publications, 1999, Appendix B. |
....empirical evidence that can be brought to bear on the poverty of the stimulus argument for innateness, our work does not, of course, resolve completely the outstanding issues. In particular, the treatment of many aspects of syntax such as anaphora, auxiliaries, wh questions, passive, control, etc. [19], awaits both further computational experimentation and further theoretical work. Acknowledgments. Supported by the US Israel Binational Science Foundation, the Dan David Prize Foundation, and the Horowitz Center for Complexity Science. We thank Todd Siegel for helpful suggestions. ....
I. A. Sag and T. Wasow. Syntactic theory: a formal introduction. CSLI Publications, Stanford, CA, 1999.
.... that they are false (and they are then overridden) Moreover, the use of default inheritance hierarchies is not only motivated for considerations of parsimony and conciseness, but also by psychological considerations, since speakers recognise systematic relationships among words, as pointed out by Sag and Wasow [1999]. An example of the use of defaults for linguistic description is found in [Lascarides and Copestake 1999] in a treatment of modals that uses defaults to allow ought to be an exception to the general class of modals. Modals can be inverted ( can in Can I use the car ) can be negated without ....
.... approach to grammar, they have a major role of capturing lexical and morphological generalisations, such as plural formation and For an overview of the use of defaults see [Gazdar 1987] Daelemans et al. 1992] Krieger and Nerbonne 1993] Lascarides et al. 1996b] Malouf 1998] and [Sag and Wasow 1999]. 47 # # # # # # # # # PHON : 1 # # # # # # # # # # # # # # # # # # # PHON : f3rdsng( 1 ) # # # # # # # # # # Figure 3.10: HPSG Third Singular Verb Formation Lexical Rule # PHON : 1 # PHON : f3rdsng( 1 ) # Figure 3.11: ....
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Sag, I.A. and Wasow, T. Syntactic Theory - A Formal Introduction. CSLI Publications, 1999.
....in SEARS case, but also obtainable from a speech recognition engine if one is integrated into the system) is processed in turn by the following three components: 1. The English parser: The parser has been designed using a grammar very similar to Head Driven Phrase Structure Grammar (HPSG) [6, 8]. The parser is fairly general purpose in nature, and can handle a variety of complicated grammatical constructs. The principles underlying the parser design, including a brief overview of HPSG, have been provided in Chapter 3. 2. The dialog manager: This component is the heart of SEARS, driving ....
....system that could have been accessed over the telephone given an adequately powerful recognition engine. This aim has not been met, however. E orts in this direction have been described in Appendix B. 6 The English Parser The parser is based on Head driven Phrase Structure Grammar (HPSG) [6, 8], a new model for representing natural language syntax and semantics rst proposed by researchers at the Stanford University in 1987. The parser implements most of the syntactic features of HPSG and consists of just over 2000 lines of Java code. The following sections will give a brief overview ....
Ivan A. Sag and Thomas Wasow. Syntactic Theory: A Formal Introduction. CSLI Publications, 1999. 28
.... they are false (and they are then overridden) Moreover, the use of default inheritance hierarchies is not only motivated for considerations of parsimony and conciseness, but also, by psychological considerations, since speakers recognise systematic relationships among words, as pointed out by Sag and Wasow [1998]. 2.1 YADU In this work, a default multiple orthogonal inheritance hierarchy is used to represent linguistic information. The hierarchy is implemented using YADU ( Lascarides et al., 1996b] and [Lascarides and Copestake, 1999] which is an order independent default unification operation on typed ....
.... for English is well suited for a theory of UG, with very general grammar rules and categories defined as types arranged in a default inheritance hierarchy, which is a kind of structure that is likely to have an important role in the way people organise many kinds of information, as pointed out by Sag and Wasow [1998]. In this section we discuss how the UG and associated parameters can be encoded in terms of a UB GCG, concentrating on the description of word order parameters, which reflect the order in which constituents occur in different languages (e.g. SVO and SOV languages) Croft, 1992] The UG is ....
Sag, I.A. and Wasow, T. Syntactic Theory - A Formal Introduction, 1998.
.... they are false (and they are then overridden) Moreover, the use of default inheritance hierarchies is not only motivated for considerations of parsimony and conciseness, but also, by psychological considerations, since speakers recognise systematic relationships among words, as pointed out by Sag and Wasow [1998]. 2.1 yadu In this work, a default multiple orthogonal inheritance hierarchy is used to represent linguistic information. The hierarchy is implemented using yadu ( Lascarides et al., 1996b] and [Lascarides and Copestake, 1999] which is an order independent default uni cation operation on typed ....
Sag, I.A. and Wasow, T. Syntactic Theory - A Formal Introduction, 1998.
.... students at Stanford, Ohio State, North Carolina, SUNY Buffalo and Essex, and also at the European Summer School for Logic, Linguistics and Information (ESSLLI 98, ESSLLI 00) Undergraduate students at CSLI 3 have also implemented the grammar developed in an introductory syntax textbook (Sag and Wasow, 1999) in the LKB system, and we are distributing this with the aim that it be used as a basis for hands on exercises and experimentation. The requirements for a teaching system are in some ways more stringent than those for research. Although efficiency is generally less important (since teaching ....
Sag, Ivan A. and Thomas Wasow, 1999. Syntactic Theory: A Formal Introduction. CSLI Publications, Stanford.
....general scheme is that if 0 is a subtheory of then C( is a subset of C( 0 ) and D( is a quotient of D( 0 ) 3. 3 Feature Based Classi cation Though not the main issue here, it is worth mentioning that feature based classi cation, which is ubiquitous in current linguistic frameworks (e.g. [15]) can be subsumed under the present approach. The set of primitive predicates in this case consists of elementary attribute value predicates of the form : and : where and are (possible composed) attributes and is a (monadic) sort predicate. With : and : reconstructed as ....
Ivan A. Sag and Thomas Wasow. Syntactic Theory: A Formal Introduction. CSLI Publications, Stanford, CA, 1999.
....versions of inflected verbs. The rules governing agreement of past participles with a preceding pronominal direct object are also implemented. The implementation was based on a simple grammar for a fragment of English, which in turn was based on the HPSG treatment of English described by Sag and Wasow (1999). The clitic system is one of the few areas in which French syntax differs substantially from English syntax in most other respects, the two languages are very similar syntactically. So implementing this particular fragment of French goes some way to show that the version of HPSG given in Sag ....
....Mary est is arrivee. arrived (fem. Mary arrived. b. Marie est arrive. 3 Translating the grammar into French The fragment of French described in the previous section was implemented in ALE (Carpenter and Penn, 1999) based on a provided implementation of part of the grammar described in Sag and Wasow (1999). As the original grammar was designed for English, several changes had to be made to convert it to French. For the most part, French and English (particularly in the fragment implemented in the original grammar) are very syntactically similar; the word order, for example, is in almost all cases ....
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Sag, Ivan A. and Thomas Wasow. 1999. Syntactic Theory: A Formal Introduction. CSLI Publications, Stanford University.
....two qualitatively different types of rules and it is our goal in this paper to offer a proposal for how to recapture Wasow s insight in a lexicalist framework like HPSG. Our proposal is to account for Wasow s insights by recognizing two types of lexical rules. We build on the analysis of Sag Wasow (1999) who argue that there are two types of lexical entries lexemes and words. Lexemes are sometimes referred to as stems , while words are the fully inflected forms that enter into the syntax. We claim that there is a contrast between lexical rules that relate lexemes to lexemes (L to L rules) and ....
....two sorts of information is ARGST. Take for example the simplified entry for the word give: 1. In more complex cases involving extraction, cliticization, and other gaps in the syntax, the ARGST will contain information about the missing argument, linked to the CONTENT features (Manning and Sag 1999, Abeill et al. 1998) The absence of a corresponding valence feature explains the lack of syntactic expression of the gap . 104 WCCFL 20 Figure (A) Lexical entry for give The ARGST value is the list created by appending the values of the valence features SUBJ and COMPS. This ensures that the ....
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Sag, I. and T. Wasow (1999) Syntactic Theory: A Formal Introduction. Stanford: CSLI Publications.
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Ivan Sag, and Thomas Wasow. Syntactic Theory: A Formal Introduction. CSLI Publications, 1999, Appendix B.
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I.A. Sag and T. Wasow. Syntactic Theory: A Formal Introduction. CSLI Publications, Stanford, 1999.
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Ivan A. Sag and Thomas Wasow. Syntactic theory: A formal introduction. Number 92 in CSLI Lecture Notes. Stanford, California, 1999.
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I.A. Sag and T. Wasow. Syntactic Theory: A Formal Introduction. CSLI Publications, Stanford, 1999.
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Ivan A. Sag and Thomas Wasow. Syntactic Theory: A Formal Introduction. CSLI Publications, Stanford, 1999.
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Ivan A. Sag and Thomas Wasow. Syntactic Theory: A Formal Introduction. CSLI Publications, Stanford, 1999.
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Sag, Ivan A. and Thomas Wasow. 1999. Syntactic Theory: A Formal Introduction. CSLI Lecture Notes No. 92. CSLI Publications.
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Sag, I.A. and Wasow, T. (1999) Syntactic Theory: A Formal Introduction. Stanford: CSLI Publications.
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Ivan A. Sag and Thomas Wasow. Syntactic Theory: A Formal Introduction. CSLI Publications, Stanford, 1999.
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I. A. Sag and T. Wasow. Syntactic theory: a formal introduction. CSLI Publications, Stanford, CA, 1999.
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Sag, I. A.; Wasow, T., 1999. Syntactic Theory: A Formal Introduction. Stanford: CSLI.
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Ivan A. Sag and Thomas Wasow. Syntactic Theory: A Formal Introduction. CSLI Publications, Stanford, CA, 1999.
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Ivan A. Sag and Thomas Wasow. Syntactic Theory: A Formal Introduction. CSLI Publications, Stanford, 1999.
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Ivan A. Sag and Thomas Wasow, Syntactic Theory: A Formal Introduction, CSLI Publications, Stanford, CA, 1999.
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Sag, I. y Wasow, T.: Syntactic Theory A Formal Introduction. CSLI Publications. Stanford, California (1999)
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I. A. Sag, T. Wasow: "Syntactic Theory:A formal introduction " 1997, http://ling.ohiostate. edu/HPSG
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