Abstract Factor momentum produces robust average returns that exhibit a similar economic magnitude as stock price momentum. To the extent post-earnings announcement drift (PEAD) factor captures mispricing, winner factors earn profits from being long on underpriced stocks and short overpriced stocks. Conversely, loser-factors’ negative exposure to PEAD suggests loser capture mispricing by Option...

This paper describes background and design of a model free adaptive Fuzzy Logic Controller. Controller Error Scaling Factor adaptation uses principle of balancing Error and Change of Error actions. Adaptation proceeds only if prescribed set of conditions is satisfied. Controller Scaling Factor for Change of Output adaptation uses weighted average of correction from oscillation index and process...

In this paper, a newly-proposed algorithm based on 3-Parents Differential Evolution (3PDE) is implemented to be self-adapted for the only control parameter of scaling factor, F. It is called 3Parents DE with Self-adaptive Scaling Factor (SaFDE). The performance of this proposed algorithm is compared against to the original Differential Evolution (DE). In this paper, 50 runs are conducted for ev...

The Impact Factor has become a well-known measure of the average citation number of articles published in a scientific journal. A journal with a high Impact Factor is assumed to have a low percentage of uncited articles. We show that the scaling relation between the Impact Factor and the uncited percentage can be understood by a simple mechanism. The empirical data can be reproduced by a random...

The dynamical scaling hypothesis for the structure factor, S (q) , in depletion-driven colloidal phase separation is studied by carrying out Brownian dynamics simulations. A true dynamical scaling is observed for shallow quenches into the two-phase coexistence region. In such a quench, compact clusters nucleate and grow with time and there is only one characteristic length scale in the system a...

In this paper, the designed schemes for two fuzzy controllers, Mamdani fuzzy controller and Takagi-Sugeno fuzzy controller, through the scaling factor adaptation are proposed. The proposed adaptation laws for the output scaling factor, which respectively result from the direct adaptive approach, are used to appropriately determine the control signal of the fuzzy controllers. The great advantage...