Ashok Kumar Goel

Learn More
We describe a computational technique for functional modeling of physical devices. In this technique, functions and behaviors of a given device are derived by retrieving the structure-behavior-function (SBF) model of a structurally similar device and revising the retrieved model to meet the specifications of the given device. The SBF model of a device(More)
The Frequency Assignment Problem is assignment of frequencies or channels to establish link between base station and mobile transmitter in cellular system. To avoid interference, minimum separation between assigned frequencies is required. This problem is NP-hard. Due to limited availability of spectrum and reuse of same frequencies at different(More)
The Frequency Assignment Problem is assignment of frequencies or channels to establish link between base station and mobile transmitter in cellular system. To avoid interference, minimum separation between assigned frequencies is required. This problem is NP-hard. Due to limited availability of spectrum and reuse of same frequencies at different(More)
This paper presents a neuro-fuzzy network where all its parameters can be tuned simultaneously using Genetic Algorithms. The approach combines the merits of fuzzy logic theory, neural networks and genetic algorithms. The proposed neuro-fuzzy network does not require a priori knowledge about the system and eliminates the need for complicated design steps(More)
A key step in explaining how something works is explaining what that thing was intended to do. This is equally true of physical devices and of abstract devices such as knowledge systems. In this paper, we consider the problem of providing functionally oriented explanations of a knowledge-based design system. In particular, we analyze the content of(More)
Traditional AI methods for navigational planning use qualitative spatial representations and reasoning. Traditional robotics techniques for this task are based on numerical representations and reasoning. Recent work on robotics posits mechanisms for reactive control that directly map perceptions of the world to actions on it. This in turn has given rise to(More)
The demand for transmission capacity is increasing day by day which forces the service providers to enhance their network performance for increasing data rates or number of wavelengths in Dense Wavelength Division Multiplexing systems. The most important element which decides the signal to be transmitted through the DWDM system is the Optical Add or Drop(More)