intelligent tutoring systems have being extensively researched, and are viewed as cost-effective alternatives to traditional education. However, it has been long recognized that development of such systems is labor-in...
详细信息
Default description logics are extensions of description logics by Reiter's default logic in order to represent and reason about non-monotonic knowledge. A default says that if its prerequisite is provable, and th...
详细信息
ISBN:
(纸本)9781424404759
Default description logics are extensions of description logics by Reiter's default logic in order to represent and reason about non-monotonic knowledge. A default says that if its prerequisite is provable, and the negation of its justification is not provable, then its consequence is provable. As a method of using defaults in a reverse way, reversing inference rules are introduced to default description logics. For a default, its reversing inference rule says if the negation of the consequence of the default is provable, then the negation of the prerequisite or the negation of the justification of the default is provable. Then a default description theory is extended to an extended default description theory with reversing inference rules and the definition of extensions of the extended default description theory is given. A default description theory can infer statements by using its defaults. However, an extended default description theory can infer statements not only by using its defaults, but by using its reversing inference rules. The relations between default description theories and their extended default description theories are discussed. For a default description theory without extensions, its extended default description theory may have extensions.
This paper proposed a practical approach to personalized tutoring planning by exploiting existing tutoring resources (e.g., a book, a courseware). More exactly, it does not build an instructional course from scratch -...
详细信息
In this paper, a novel supervised information feature compression algorithm based on divergence is set up. Firstly, according to the information theory, the concept and its properties of the divergence, i.e. average s...
详细信息
Web services composition techniques are gaining momentum as the opportunity to establish reusable and versatile inter-op er ability applications. Many researchers propose their composition approach based on planning t...
详细信息
Granular computing as an enabling technology and as such it cuts across a broad spectrum of disciplines and becomes important to many areas of applications. In this paper, the notions of tolerance relation based infor...
详细信息
As an extension of the traditional modal logic, the fuzzy first-order modal logic is discussed in this paper. A description of fuzzy first-order modal logic based on constant domain semantics is given, and a formal sy...
详细信息
We propose an appearance-based image clustering approach called GGCI (global geometric clustering for image). For face images taken with varying pose, expression, eyes (wearing sunglasses or not) or object images unde...
详细信息
The information entropy, as a measurement of the average amount of information contained in an information system, is used in the classification of objects and the analysis of information systems. The information entr...
详细信息
暂无评论