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- Wen-Lung Gau, Daniel J. Buehrer
- IEEE Trans. Systems, Man, and Cybernetics
- 1993

A vague set is a set of objects, each of which has a grade-of membership whose value is a continuous subinterval of [0,1]. Such a set is characterized by a truth-membership function and a falsemembership function. The notion of inclusion, union, intersection, and complement are Definition Sets’ Let X be a space of points (objects), with a generic element of… (More)

- Chin-Chen Chang, S. M. Hwang, Daniel J. Buehrer
- Pattern Recognition
- 1991

This paper first presents a simple explanation for the min/max bounds which are used in interval probability theory ( I n ) [l], possibility theory [2], fuzzy rough sets [4], and vague logic [ 5 ] . Based on this definition, a computable version of first-order fuzzy logic is defined, where all of the upper bounds for instances of a theorem and its negation… (More)

We introduce an adaptive learning environment named DALM (DICE adaptive learning model) based on DICE test-driven development (TDD) model that was implemented in a parse-tree based automatic on-line grader. In our opinion, there are three variables in DALM. The individual differences (I) classify the learners into several groups. The training method (T)… (More)

- Chun-Yao Wang, Daniel J. Buehrer
- 2008 IEEE/WIC/ACM International Conference on Web…
- 2008

Many asynchronous distributed atomic commit protocols use a coordinator, either an application server or an elected database server, to handle the progress of a transaction. When the coordinator fails or the network becomes partitioned, the transaction may block or may suffer from a split brain syndrome. In this paper we propose a decentralized,… (More)

- Daniel J. Buehrer, Yi-Huang Liu, Ting-Yue Hong, Jeng-Jong Jou
- Description Logics
- 1996

A class algebra has been used to model the query and data manipulation language for a prototype object-oriented database system which is being implemented for the WorldWide Web [7]. The Prolog prototype (i.e. operational semantics, if you will) is located at http : //www.cs.ccu.edu.tw/ ..~ dan/prologProgs/modeloo.t~t. The class algebra includes a Boolean… (More)

- Chin-Chen Chang, Daniel J. Buehrer
- Journal of Systems and Software
- 1996

- Daniel J. Buehrer, Chun-Yao Wang
- 2012 IEEE/WIC/ACM International Conferences on…
- 2012

We propose a trust framework model for an educational cloud which is designed to overcome inequalities of M-shaped incomes by simplifying contract-based sharing of resources among multiple schools. We use class algebra, which is similar to SROIQ(D) description logic, as the access control policy language. Benefiting from the high expressivity of class… (More)

- Chi-Nan Lin, Daniel J. Buehrer, Chin-Chen Chang, Tzu-Chuen Lu
- Journal of Systems and Software
- 2010

- Chin-Chen Chang, Woan-Jing Horng, Daniel J. Buehrer
- J. Inf. Sci. Eng.
- 1995