This work analyzes the behavior of evolution strategies and their current mutation variants on a simple rotating dynamic problem. The degree of rotation is a parameter for the involved dynamism which enables systematic examinations. As a result the complex covariance matrix adaptation proves to be superior with slow rotation but with increasing dynamism those adaptation mechanism seldom find th...

The ability to adapt a software artifact is essential toward handling evolving stakeholder requirements. Adaptation is also vital in many areas where software is required to adjust to changing environment conditions (e.g., the growing presence of embedded systems). Current techniques for supporting adaptability and evolvability can be categorized as static (happening at compile-time or design-t...

Dynamic optimization can be used to determine optimal input profiles for dynamic processes. Due to plant-model mismatch and disturbances, the optimal inputs determined through model-based optimization will, in general, not be optimal for the plant. Modifier adaptation is a methodology that uses measurements to achieve optimality in the presence of uncertainty. Modifier-adaptation schemes have b...

the main purpose of this research was to study the variables and factors that affect adaptation of university to external environment and to develop a model for assessment of tehran public universities adaptation to external environment. a mixed method research approach involving a three-round delphi study was used to record responses to the closed-questions and open-ended-questions. other data...

Interest in technologies that can help improve image sensors—in terms of cost, noise and dynamic range—is growing as quickly as the market for them. Dynamic range (DR) quantifies the ability of a sensor to image highlights and shadows. If we define the dynamic range of the sensor as 20 log(S/N), where S is the maximal signal value and N is the sensor noise, the typical image sensors will have a...

The seamless access to rich multimedia content on any device and over any network, usually known as Universal Multimedia Access, requires interoperable description tools and adaptation techniques to be developed. To address this, MPEG-21 introduces an adaptation framework, which provides several mechanisms for making adaptation decisions according to usage environment and adapting multimedia co...

Due to the wide acceptance and distribution of mobile devices, it has become increasingly important that an application is able to adapt to a changing environment. This implies the necessity to integrate varying functionality at runtime being activated depending on the current context. A common approach is to foresee and model all possible influencing factors and to integrate the required softw...

Although adaptation to novel motor tasks is sometimes a very slow process, de-adaptation is usually extremely rapid. Such rapid de-adaptation is seen in dynamic learning in which subjects can take hundreds of movements to learn a novel force environment but only a few movements to de-adapt back to a normal or "null" force environment. We investigated whether this effect is unique to the null en...