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SUMMARY Larger object classes often become more costly classes in the maintenance phase of object-oriented software. Consequently class would have to be constructed in a medium or small size. In order to discuss such desirable size, this paper proposes a simple method for predictively discriminating costly classes in version-upgrades, using a class size… (More)

Generalized inverses have many applications in engineering problems, such as data analysis, electrical networks, character recognitions, and so on. The most frequently used generalized inverse is a Moore-Penrose type's one. Let <i>A</i> be <i>m</i> x <i>n</i> matrix. The Moore-Penrose generalized inverse of <i>A,</i> i.e., <i>n</i> x <i>m</i> matrix… (More)

of all weight vectors that are equivalent to c E R ~ form a relatively open polyhedral cone in R", the closure of which is called the GrSbner cone of c. The GrSbner cone of c is n-dimensional if and only if c is generic for IA. The collection of all GrSbner cones of IA tbrm a polyhedral fan in R n called the Gr6bner fan of I. Since I is homogeneous with… (More)

We present a hybrid integral to obtain symbolic results of an indefinite integral where the integrand is an univariate rational function whose coeficients have a parameter. We consider calculating power series roots of the denominator polynomial by applying Hensel construction. Accurate numerical results for a definite integral are easily obtained by simple… (More)

- Kai Li, Lihong Zhi, Matu-Tarow Noda
- 2005

The problem of solving approximate GCD of multivariate polyno-mials has been well studied in the computational literature because of its importance particularly in engineering application[2, 6, 7]. Numbers of algorithms have been proposed to give the approach such as approximate subresultant PRS and modular algorithm using SVD. Here we focus on EZ-GCD[3],… (More)

- Takumi Watanabe, Ikko Kadota, Yukihiro Morizane, Masahiro Kono, Li Kai, Hiroshi Kai +1 other
- 2004

Lupin [1] is an ongoing research subject in Ehime University that aims at: • Establishing a Web-based mechanism and framework that allows easy and systematic creation and construction of computational Problem Solving Environments (PSEs), • Exploiting the standard Web technologies to support the infrastructure, • Implementing a prototype to demonstrate the… (More)

SUMMARY Cohesion is an important software attribute, and it is one of significant criteria for assessing object-oriented software quality. Although several metrics for measuring cohesion have been proposed, there is an aspect which has not been supported by those existing metrics, that is " cohesive-part size. " This paper proposes a new metric focusing on… (More)

M a t s u y a m a 790-8577, J a p a n E m a i h { k a i , n o d a } @ c s. e h i m e-u. a c. j p Hybrid Rational Function Approximation (HRFA) [6] is one of important and interesting applications of approximate-GCD [1, 3, 5, 7, 8]. The HI:tFA has been already applied to data smoothing, integral of function and Cauchy principal value integral[4, 6]. Here we… (More)