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Fuzzy Computational Ontologies in Contex


作者:
Yi Cai, et al.
定价:
0.00 元
版面字数:
350千字
开本:
特殊
装帧形式:
精装
版次:
暂无
最新版次
印刷时间:
1899年
ISBN:
978-7-04-033889-8
物料号:
33889-A0
出版时间:
2011-12-07
读者对象:
学术著作
一级分类:
自然科学
二级分类:
计算机科学与工程
三级分类:
计算理论与算法

计算本体(computational ontology)是对概念以及概念间的各种关系的一种形式化表述,是知识表示、语义网、智能主体等人工智能主要研究领域中的重要研究对象。《情境中的模 糊计算本体(英文版)》提出了一个基于模糊集的、可表达对象对于概念的归属程度(object membership)和对象在概念中的典型程度(object typicality)的形式化计算本体模型,以具体例子论证了此形式化模型的必要性和重要性;指出了情境(context)对物体归属程度和典型程度的 影响,并对此加以形式化;最后讨论了此形式化模型在推荐系统中的应用,用实验证明利用对象典型程度,或把对象典型程度加到协同过滤法后,能进一步提高模型 的准确性。

  • 目录
    • Chapter 1 Introduction
      • 1.1 Semantic Web and Ontologies
        • 1.2 Motivations
          • 1.2.1 Fuzziness of Concepts
            • 1.2.2 Typicality of Objects in Concepts
              • 1.2.3 Context and Its Efiect on Reasoning
                • 1.3 Our Work
                  • 1.3.1 Objectives
                    • 1.3.2 Contributions
                      • 1.4 Structure of the Book
                        • References
                          • Chapter 2 Knowledge Representation on the Wleb
                            • 2.1 Semantic Web
                              • 2.2 Ontologies
                                • 2.3 Description Logics
                                  • References
                                    • Chapter 3 Concepts and Categorization from a Psychological Perspective
                                      • 3.1 Theory of Concepts
                                        • 3.1.1 Classical View
                                          • 3.1.2 Prototype View
                                            • 3.1.3 Other Views
                                              • 3.2 Membership versus Typicality
                                                • 3.3 Similarity Between Concepts
                                                  • 3.4 Context and Context Efiects
                                                    • References
                                                      • Chapter 4 Modeling Uncertainty in Knowledge
                                                        • Representation
                                                          • 4.1 Fuzzy Set Theory
                                                            • 4.2 Uncertainty in Ontologies and Description Logics
                                                              • 4.3 Semantic Similarity
                                                                • 4.4 Contextual Reasoning
                                                                  • 4.5 Summary
                                                                    • References
                                                                      • Chapter 5 Fuzzy Ontology:A First Formal Model
                                                                        • 5.1 Rationale
                                                                          • 5.2 Concepts and Properties
                                                                            • 5.3 Subsumption of Concepts
                                                                              • 5.4 Object Membership of an Individual in a Concept
                                                                                • 5.5 Prototype Vector and Typicality
                                                                                  • 5.6 An Example
                                                                                    • 5.7 Properties of the Proposed Model
                                                                                      • 5.7.1 Object Membership
                                                                                        • 5.7.2 Typicality
                                                                                          • 5.8 On Object Membership and Typicality
                                                                                            • 5.9 Summary
                                                                                              • References
                                                                                                • Chapter 6 A More General Ontology Model with ObjectMembership and Typicality
                                                                                                  • 6.1 Motivation
                                                                                                    • 6.2 Limitations of Previous Models
                                                                                                      • 6.2.1 Limitation of Previous Modds in Measuring Object Membership
                                                                                                        • 6.2.2 Limitations of Previous Models in Measuring Object Typicality
                                                                                                          • 6.3 A Better Conceptual Model of Fuzzy Ontology
                                                                                                            • 6.3.1 A Novel Fuzzy Ontology Model
                                                                                                              • 6.3.2 Two Kinds of Measurements of Objects Possessing Properties
                                                                                                                • 6.3.3 Concepts Represented by N-Properties and L-Properties
                                                                                                                  • 6.4 Fuzzy Membership of Objects in Concepts
                                                                                                                    • 6.4.1 Measuring Degrees of Objects Possessing Defining Properties of Concepts
                                                                                                                      • ……
                                                                                                                        • Chapter 7 Context-aware Object Typicality Measurement in Fuzzy Ontology
                                                                                                                          • Chapter 8 Object Membership with Property Importance and Property Priority
                                                                                                                            • Chapter 9 Applications
                                                                                                                              • Chapter 10 Conclusions and Future Work
                                                                                                                                • Index

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