Exploring Time, Tense, and Aspect in Natural Language Database Interfaces
Advances in temporal databases make it increasingly easier to store time-dependent information, creating a need for facilities that will help end-users access this information. In the context of natural language interaction, significant effort has been devoted to interfaces that allow database queries to be formulated in natural language. Most of the existing interfaces, however, do not support adequately the notion of time. Drawing upon tense and aspect theories, temporal logics, and temporal databases, this cross-discipline book examines relevant issues from the three areas, developing a unified theoretical framework that can be used to build natural language interfaces to temporal databases. The framework features an HPSG mapping from English to a formally defined meaning representation language, and a corresponding mapping to a temporal extension of the SQL database language. The book is accompanied by a freely available prototype interface, built according to the framework, and implemented using Prolog and ALE. This is the first in-depth exploration of the notion of time in natural language database interfaces. It will be particularly interesting to researchers working on natural language interaction, tense and aspect, HPSG, temporal logics, and temporal databases, especially those who wish to learn about time-related issues in other disciplines.
What people are saying - Write a review
We haven't found any reviews in the usual places.
Other editions - View all
Adams inspect airport domain anaphora and(flight(xl"v aspectual class base form Chapter chronons column reference complement COMPS CONT contains correlation names corresponding Culm operator database language database model DBMS denote discussed in Section embedded SELECT statement English questions eval(st example existential quantifier explicit attributes feature structures formula after post-processing function functor gate2 GPARTS habitual Hence HPSG sign inspected BA737 interrog(xl"v introduced lexical rules MAIN_PSOA mapping maximal period Moens Nelken non-habitual non-predicative noun phrases Ntense operator period adverbials PHON predicate Prolog prototype NLITDB psoa punctual adverbials QSTORE quantifier queries reading represent requires runway SELECT DISTINCT SNAPSHOT semantics sentences simple past simple present situation specify SUBJ subordinate clauses subperiod subsorts tank temporal adverbials temporal database temporal modifiers time-point time-stamps tion TOP expressions TOP formula TOP to TSQLI TOP'S trans(q translation rule TSQL2 tuples TVAR VALID valid-time relations verb ASPECT verb phrase xl"v