tailieunhanh - Báo cáo khoa học: "FUTURE PROSPECTS FOR COMPUTATIONAL LINGUISTICS "

Introduction individuals outside the limits of its own close-knit community? As long as the answer remains "virtually nothing," our work will generally be viewed as an ivory tower enterprise. As soon as the answer becomes a set of useful computer systems, we will be viewed as the people who produce such systems and who aspire to produce better ones. My point here is that the commercial marketplace will tend to judge both our science and our engineering in terms of our existing or potential engineering products. . | FUTURE PROSPECTS FOR COMPUTATIONAL LINGUISTICS Gary G. Hendrix SRI International Preparation of this paper was supported by the Defense Advance Research Projects Agency under contract NOOO39-79-C-O118 with the Naval Electronic Systems Command. The views expressed are those of the author. A. Introduction For over two decades researchers in artificial intelligence and computational linguistics have sought to discover principles that would allow computer systems to process natural languages such as English. This work has been pursued both to further the scientific goals of providing a framework for a computational theory of natural-language communication and to further the engineering goals of creating computer-based systems that can communicate with their-human users in human terms. Although the goal of fluent machine-based nautral-language understanding remains elusive considerable progress has been made and future prospects appear bright both for the advancement of the science and for its application to the creation of practical systems. In particular after 20 years of nurture in the academic nest natural-language processing is beginning to test its wings in the commercial world s . By the end of the decade natural-language systems are likely to be in widespread use bringing computer resources to large numbers of non-computer specialists and bringing new credibility and hopefully new levels of funding to the research community. 3 Basis for Optimism My optimism is based on an extrapolation of three major trends currently affecting the field 1 The emergence of an engineering applications discipline within the computational-linguistics community. 2 The continuing rapid development of new computing hardware coupled with the beginning of a movement from time-sharing to personal computers. 3 A shift from syntax and semantics as the principle objects of study to the development of theories that cast language use in terms of a broader theory of goal-motivated behavior and

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