tailieunhanh - Báo cáo khoa học: "Dimensions of Subjectivity in Natural Language"

Current research in automatic subjectivity analysis deals with various kinds of subjective statements involving human attitudes and emotions. While all of them are related to subjectivity, these statements usually touch on multiple dimensions such as non-objectivity1 , uncertainty, vagueness, non-objective measurability, imprecision, and ambiguity, which are inherently different. This paper discusses the differences and relations of six dimensions of subjectivity. Conceptual and linguistic characteristics of each dimension will be demonstrated under different contexts. . | Dimensions of Subjectivity in Natural Language Wei Chen Language Technologies Institute Carnegie Mellon University PittsbUrgh PA 15213 UsA weichen@ Abstract Current research in automatic subjectivity analysis deals with various kinds of subjective statements involving human attitudes and emotions. While all of them are related to subjectivity these statements usually touch on multiple dimensions such as non-objectivity1 uncertainty vagueness non-objective measurability imprecision and ambiguity which are inherently different. This paper discusses the differences and relations of six dimensions of subjectivity. Conceptual and linguistic characteristics of each dimension will be demonstrated under different contexts. 1 Introduction Natural language involves statements that do not contain complete exact and unbiased information. Many of these are subjective which share the common property described in narrative theory Banfield 1982 as subjective statements must all be referred to the speaking subject for interpretation . Wiebe 1990 further adapted this definition of subjectivity to be the linguistic expression of private states Quirk et al. 1985 . So far linguistic cues have played an important role in research of subjectivity recognition . Wilson et al. 2006 sentiment analysis . Wilson et al. 2005 Pang and Lee 2004 and emotion studies . Pen-nebaker et al. 2001 . While most linguistic cues 1We use the term non-objectivity to refer to the property of creating a bias from a speaker s point of view that is not supported by sufficient objective evidence. It is not identical to the subjectivity that involves all the dimensions we discuss in this paper. are grouped under the general rubric of subjectivity they are usually originated from different dimensions including non-objectivity uncertainty vagueness non-objective measurability imprecision ambiguity These dimensions all mingle in various applications that deal with subjective statements. For example

• Báo cáo khoa học
• Dimensions of Subjectivity
• Natural Language
• báo cáo khoa học
• báo cáo ngôn ngữ
• xử lý ngôn ngữ tự nhiên
• 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 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