This paper proposes a new parameter identification method based on Linear Fractional Transformation (LFT). It is assumed that the target linear system includes unknown parameters. The parameter deviations are separated from a nominal system via LFT, and identified by organizing I/O signals around the separated deviations of the real system. The purpose of this paper is to apply LFT to simultane...

Abstract—Under active stress conditions, a rigid cantilever retaining wall tends to rotate about a pivot point located within the embedded depth of the wall. For purely granular and cohesive soils, a methodology was previously reported called minimization of moment ratio to determine the location of the pivot point of rotation. The usage of this new methodology is to estimate the rotational sta...

This paper proposes an e cient method of robot learning by which a set of pairs of a state and an action are constructed to achieve a goal. Basic ideas of our method are as follows: i) Since autonomous construction of state and action spaces is generally a very di cult problem, we construct a state space so that a group of situations in which an action command to achieve the goal is the same ca...

Desired dynamics for physical systems can be synthesized from the phase-space geometric point of view. We have developed a phase-space method for synthesizing control strategies and implemented the method for a class of nonlinear dynamical systems. In this paper, we examine how the phase-space method can be applied to analyze and synthesize control laws for physical systems that exhibit distinc...

Social network sites have attracted millions of users with the social revolution in Web 2.0. In the social network sites, a user can register other users as friends and enjoy communication. However, users of social network sites may easily get overwhelmed by the excessive volume of friend information. Recently context-aware mobile devices have been thoroughly integrated into all walks of life. ...

We propose a new variational principle for out-of-equilibrium dynamic systems that are fundamentally based on the method of Lagrange multipliers applied to the total entropy of an ensemble of particles. However, we use the fundamental equation of thermodynamics on differential forms, considering U and S as 0-forms. We obtain a set of two first order differential equations that reveal the same f...

The forced oscillator method (FOM) is particularly suitable to treat very large matrices by using advanced modern supercomputers. This method enables us to calculate in an efficient way spectral densities, eigenvalues, and their eigenvectors of large-scale matrices. In addition, linear response functions of systems described by these matrices can be computed by the FOM. We have also developed t...

Reconstructing a physical map of a chromosome from a genomic library presents a central com putational problem in genetics Physical map reconstruction in the presence of errors is a prob lem of high computational complexity A parallel evolutionary method for a maximum likelihood estimation based approach to physical map reconstruction is presented The estimation procedure entails gradient desce...

Abstract—In this work, we use the numerical steepest descent path (numerical SDP) method in complex analysis theory to calculate the highly oscillatory physical optics (PO) integral with quadratic phase and amplitude variations on the triangular patch. The Stokes’ phenomenon will occur due to various asymptotic behaviors on different domains. The stationary phase point contributions are careful...