TAILIEUCHUNG - Báo cáo khoa học: "From RAGS to RICHES: exploiting the potential of a flexible generation architecture"

The RAGS proposals for generic specification of NLG systems includes a detailed account of data representation, but only an outline view of processing aspects. In this paper we introduce a modular processing architecture with a concrete implementation which aims to meet the RAGS goals of transparency and reusability. We illustrate the model with the RICHES system – a generation system built from simple linguisticallymotivated modules. | From RAGS to RICHES exploiting the potential of a flexible generation architecture Lynne Cahillf John CarrollỊ Roger Evansf Daniel Paivaf Richard Powerf Donia Scottf and Kees van Deemterf fITRI University of Brighton Brighton BN2 4GJ Uk ỊSchool of Cognitive and Computing Sciences University of Sussex Brighton BN1 9QH UK johnca@ Abstract The RAGS proposals for generic specification of NLG systems includes a detailed account of data representation but only an outline view of processing aspects. In this paper we introduce a modular processing architecture with a concrete implementation which aims to meet the RAGS goals of transparency and reusability. We illustrate the model with the RICHES system - a generation system built from simple linguistically-motivated modules. 1 Introduction As part of the RAGS Reference Architecture for Generation Systems project Mellish et al 2000 introduces a framework for the representation of data in NLG systems the RAGS data model . This model offers a formally well-defined declarative representation language which supports the complex and dynamic data requirements of generation systems . different levels of representation conceptual to syntax mixed representations that cut across levels partial and shared structures and canned representations. However We would like to acknowledge the financial support of the EPSRC rags - Reference Architecture for Generation Systems grant GR L77102 to Donia Scott as well as the intellectual contribution of our partners at Edinburgh Chris Mellish and Mike Reape grant GR L77041 to Mellish and other colleagues at the ITRI especially Nedjet Bouayad-Agha. We would also like to acknowledge the contribution of colleagues who worked on the RICHES system previously Neil Tipper and Rodger Kibble. We are grateful to our anonymous referees for their helpful comments. RAGS as described in that paper says very little about the functional structure of an NLG .

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