TAILIEUCHUNG - Báo cáo khoa học: "Non-Verbal Cues for Discourse Structure"

This paper addresses the issue of designing embodied conversational agents that exhibit appropriate posture shifts during dialogues with human users. Previous research has noted the importance of hand gestures, eye gaze and head nods in conversations between embodied agents and humans. We present an analysis of human monologues and dialogues that suggests that postural shifts can be predicted as a function of discourse state in monologues, and discourse and conversation state in dialogues. On the basis of these findings, we have implemented an embodied conversational agent that uses Collagen in such a way as to generate postural shifts. . | Non-Verbal Cues for Discourse Structure Justine Cassell Yukiko I. Nakanof Timothy W. Bickmoref Candace L. SidnerỊ and Charles RichỊ fMIT Media Laboratory 20 Ames Street Cambridge MA 02139 justine yukiko bickmore @ Abstract This paper addresses the issue of designing embodied conversational agents that exhibit appropriate posture shifts during dialogues with human users. Previous research has noted the importance of hand gestures eye gaze and head nods in conversations between embodied agents and humans. We present an analysis of human monologues and dialogues that suggests that postural shifts can be predicted as a function of discourse state in monologues and discourse and conversation state in dialogues. On the basis of these findings we have implemented an embodied conversational agent that uses Collagen in such a way as to generate postural shifts. 1. Introduction This paper provides empirical support for the relationship between posture shifts and discourse structure and then derives an algorithm for generating posture shifts in an animated embodied conversational agent from discourse states produced by the middleware architecture known as Collagen 18 . Other nonverbal behaviors have been shown to be correlated with the underlying conversational structure and information structure of discourse. For example gaze shifts towards the listener correlate with a shift in conversational turn from the conversational participants Mitsubishi Electric Research Laboratories 201 Broadway Cambridge MA 02139 sidner rich @ perspective they can be seen as a signal that the floor is available . Gestures correlate with rhematic content in accompanying language from the conversational participants perspective these behaviors can be seen as a signal that accompanying speech is of high interest . A better understanding of the role of nonverbal behaviors in conveying discourse structures enables improvements in the naturalness of embodied dialogue systems such as

• Báo cáo khoa học
• Non Verbal Cues
• Discourse Structure
• Justine Cassell
• báo cáo khoa học
• mô hình ngôn ngữ
• xử lý ngôn ngữ tự nhiên
• Non verbal communication
• Shared cues
• Business deal
• Nonverbal communication
• Time lag discovery of shared cues
• Bài giảng Xử lý ngôn ngữ tự nhiên
• Ngôn ngữ tự nhiên
• Kỹ thuật lập trình
• Xử lý nhập nhằng ngữ nghĩa
• Xử lý ngữ nghĩa
• Xử lý ngôn ngữ
• Natural Language Processing
• Ngôn ngữ lập trình
• Nhập nhằng cấu trúc
• Tri thức về ngôn ngữ
• Mô hình n gram
• Dịch máy
• Phương pháp dịch máy
• Hiểu ngôn ngữ
• Phân tích ngữ nghĩa
• Phân loại tin tự động
• Biểu diễn vị từ
• Thuộc tính về sự kiện
• Thuộc tính về sự kiện
• Mô hình ngôn ngữ Google Book N grams
• Mô hình ngôn ngữ KenLM
• Phương pháp làm mịn
• Tách từ tiếng Việt
• Gán nhãn từ loại
• Phân tích cú pháp
• Nghĩa từ vựng
• Phân giải nhập nhằng từ
• Phân loại văn bản
• Lexical chain
• Phản hồi thông tin
• Bài toán PTCP
• Cấu trúc ngữ pháp
• Phân tích cú pháp xác suất
• CKY kết hợp xác suất
• Văn phạm phi ngữ cảnh xác suất
• Hình thái học