SPECIFICATION AND UTILIZATION OF A TRANSFORMATIONAL GRAMMAR.
Final rept. Oct 66-Jun 68,
IBM WATSON RESEARCH CENTER YORKTOWN HEIGHTS N Y
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The report consists of four parts 1 Cross-Over Phenomena is a study in the grammar of coreference. A wide variety of evidence is presented which shows that the distribution of nominal expressions in English sentences is subject to previously unsuspected constraints involving coreference. Principles are suggested which explain a large number of such cases in terms of general restrictions on classes of transformations that move nominal expressions. 2 Dependency Structures and Transformational Rules explores the use of a dependency grammar as the categorial component of a transformational grammar. Potential advantages of such a choice include explicit marking of phrase heads, which may govern the applicability of certain transformations, and elimination of the need for tree-pruning. 3 Case, Category, and Configuration reviews recent transformational work on case and proposes an abstract form for the base component as a framework for representing pertinent aspects of case relationships. 4 A Survey of Some Recent Work in Psycholinguistics discusses recent research on memory and perception of sentences, considers its possible implications for the design of recognition procedures and man-computer interaction languages, and recommends some future lines of investigation. Author