作者: Ion Androutsopoulos , Peter Thanisch , Graeme D. Ritchie
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摘要: Over the past thirty years, there has been considerable progress in design of natural language interfaces to databases. Most this work concerned snapshot databases, which are only limited facilities for manipulating time-varying information. The database community is becoming increasingly interested temporal databases with special support time-dependent entries. We have developed a framework constructing drawing on research phenomena within logic and linguistics. central part our logic-like formal language, called TOP, can capture semantics wide range English sentences. implemented an HPSG-based sentence analyser that converts large set queries involving time into TOP formulae, formulated provably correct procedure translating expressions TSQL2 language. In way we established sound route from general-purpose