Christine Doran

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Lottg alld eolni)licated seltteltces prov(: to b(: a. stumbling block for current systems relying on N[, input. These systenls s tand to gaill frolil ntethods that syntacti<:aHy simplily su<:h sentences. ']b simplify a sen= tence, we nee<t an idea of tit(." structure of the sentence, to identify the <:omponents to be separated out. Obviously a parser couhl(More)
The process of microplanning encompasses a range of problems in Natural Language Generation (NLG), such as referring expression generation, lexical choice, and aggregation, problems in which a generator must bridge underlying domain-specific representations and general linguistic representations. In this paper, we describe a uniform approach to(More)
This paper presents the XTAG system, a grammar development tool based on the Tree Adjoining Grammar (TAG) formalism that includes a wide-coverage syntactic grammar for English. The various components of the system are discussed and preliminary evaluation results from the parsing of various corpora are given. Results from the comparison of XTAG against the(More)
Complexity of Lexical Descriptions and its Relevance to Partial Parsing Srinivas Bangalore Supervisor: Aravind K. Joshi In this dissertation, we have proposed novel methods for robust parsing that integrate the exibility of linguistically motivated lexical descriptions with the robustness of statistical techniques. Our thesis is that the computation of(More)
While researchers have many intuitions about the differences between humancomputer and human-human interactions, most of these have not previously been subject to empirical scrutiny. This work presents some initial experiments in this direction, with the ultimate goal being to use what we learn to improve computer dialogue systems. Working with data from(More)
In this paper, we present a new technique called Lightweight Dependency Analysis which in conjunctionwith Supertag disambiguation provides a method for Robust Partial Parsing, called Almost Parsing. An overview is given of the XTAG system in which this technique is being developed. In addition, we propose alternate metrics for evaluation of partial parsers(More)
Punctuation helps us to structure, and thus to understand, texts. Many uses of punctuation straddle the line between syntax and discourse, because they serve to combine multiple propositions within a single orthographic sentence. They allow us to insert discourse-level relations at the level of a single sentence. Just as people make use of information from(More)