This paper describes CLIPS-R, a theory revision system for the revision of CLIPS rule-bases. CLIPS-R may be used for a variety of knowledge-base revision tasks, such as re ning a prototype system, adapting an existing system to slightly di erent operating conditions, or improving an operational system that makes occasional errors. We present a description of how CLIPS-R revises rule-bases, and ...

Frame representations (e.g. wavelets) and subspace projections are important tools in many image processing applications. A unified framework for frames and subspace bases, as well as bases and subspace frames, is developed for finite dimensional vector spaces. Dual (subspace) bases and frames are constructed and the theory is generalized to weighted norms and seminorms. It is demonstrated how ...

Sequences of unit vectors for which the Kaczmarz algorithm always converges in Hilbert space can be characterized in frame theory by tight frames with constant 1. We generalize this result to the context of frames and bases. In particular, we show that the only effective sequences which are Riesz bases are orthonormal bases. Moreover, we consider the infinite system of linear algebraic equation...

Quasi-stable ideals appear as leading ideals in the theory of Pommaret bases. We show that quasi-stable leading ideals share many of the properties of the generic initial ideal. In contrast to genericity, quasistability is a characteristic independent property that can be effectively verified. We also relate Pommaret bases to some invariants associated with local cohomology, exhibit the existen...

Some new Schiff-base compounds based on pyrrole were synthesized by the reaction of 2-amino-1-methyl-4,5-diphenyl-1H-pyrrole-3-carbonitrile (1)with aromatic aldehydes (2a-2e) in ethanol/acetic acid at room temperature. The structures of the Schiff bases were characterized by full spectral data. The fluorescence emission intensity of the Schiff bases has bee...

Building upon the social exchange theory, this paper hypothesized the direct effect of bases of power on job stress with mentoring as moderator. Power bases and job stresses were conceptualized as 7- and 3- dimensional constructs, respectively. One hundred and ninety-five Malaysian managers and executives working in large-scale multinational companies participated in this study. The results hav...

Quantum sensors may provide extremely high sensitivity and precision to extract key information in a quantum or classical physical system. A fundamental question is whether sensor capable of uniquely inferring unknown parameters system for given structure the admissible measurement on sensor. In this paper, we investigate capability class which consist either single qubit two qubits. coupled sp...

abstract the theory of hardship is a situation in which the implementation of contractual obligation, as a result of unpredictable events that are out of control, becomes economically difficult and expensive without being physically impossible and distorts the balance of the contract. in such a situation, the hardship theory is applied to restore the balance of the contract. this matter has var...