tailieunhanh - Báo cáo khoa học: "A Flexible Approach to Natural Language Generation for Disabled Children"

Natural Language Generation (NLG) is a way to automatically realize a correct expression in response to a communicative goal. This technology is mainly explored in the fields of machine translation, report generation, dialog system etc. In this paper we have explored the NLG technique for another novel applicationassisting disabled children to take part in conversation. The limited physical ability and mental maturity of our intended users made the NLG approach different from others. We have taken a flexible approach where main emphasis is given on flexibility and usability of the system. . | A Flexible Approach to Natural Language Generation for Disabled Children Pradipta Biswas School of Information Technology Indian Institute of Technology Kharagpur 721302 INDIA pbiswas@ Abstract Natural Language Generation NLG is a way to automatically realize a correct expression in response to a communicative goal. This technology is mainly explored in the fields of machine translation report generation dialog system etc. In this paper we have explored the NLG technique for another novel applicationassisting disabled children to take part in conversation. The limited physical ability and mental maturity of our intended users made the NLG approach different from others. We have taken a flexible approach where main emphasis is given on flexibility and usability of the system. The evaluation results show this technique can increase the communication rate of users during a conversation. 1 Introduction Natural Language Generation also known as Automated Discourse Generation or simply Text Generation is a branch of computational linguistics which deals with automatic generation of text in natural human language by the machine. It can be conceptualized as a process leading from a high level communicative goal to a sequence of communicative acts that accomplish this communicative goal Rambow et. al. 2001 . Based on input representation any NLG technique can be broadly classified into two paradigms viz. Template based Approach and Plan based approach. The template-based approach does not need large linguistic knowledge resource but it cannot provide the expressiveness or flexibility needed for many real domains Langkilde and Knight 1998 . In Deemter et al. 1999 it has been tried to prove with the example of a system D2S Direct to Speech that both of the approaches are equally powerful and theoretically well founded. The D2S system uses a tree structured template organization that resembles Tag Adjoining Grammar TAG structure. The template-based approach