Executive information systems (EIS) are designed to serve the needs of executive users in strategic planning and decision-making. Sometimes the terms “executive information systems” and “executive support systems” are used interchangeably (Turban, McLean, & Wetherber, 1999). Definitions of EIS are varied but all identify the need for information that support decisions about the organization. EI...

Expert Systems (ESs) are problem solving computer packages that use expert knowledge to attain a high level of performance that normally would require years of special education and training (Hays-Roth et al., 1983; Waterman, 1986; Turban, 1990), and are a special type of Management Information Systems (MISs) to provide information to support decision-making (Davis and Olson, 1985). The name ES...

Information Technology (IT) is advancing rapidly. In the last years, IT costs have reduced while data storage, communication and processing capabilities have increased. In effect, vast datasets are becoming commonplace. All this data hold valuable knowledge such as trends and patterns, which can be used to improve decision making and optimize chances of success. These datasets are often highly ...

Biomimetics is the study of nature and natural phenomena to understand the principles of underlying mechanisms, to obtain ideas from nature, and to apply concepts that may benefit science, engineering, and medicine. Examples of biomimetic studies include fluid-drag reduction swimsuits inspired by the structure of shark's skin, velcro fasteners modeled on burrs, shape of airplanes developed from...

Decision support systems (DSSs) are a sub-set of information systems that support human decision-making through computerized systems that provide contextual information. DSSs allow decision-makers to improve their strategic planning and management control; from a business standpoint these systems have a wide-range of application (Yong & Taib, 2009). DSSs can be applied in a variety of areas to ...

This report defines the rank complement of a diagonalizable matrix (i.e. a matrix which can be brought to a diagonal form by means of a change of basis) as the interchange of the range and the null space. Given a diagonalizable matrix A there is in general no unique matrix Ac which has a range equal to the null space of A and a null space equal to the range of A, only matrices of full rank have...

ing this paper new factorization techniques for computation of the Operational Space Mass Matrix (A) and its inverse (A-l) are developed. Starting with a new factorization of the inverse of mass matrix (M-l) in the form of Schur Complement as M-l = G’ %)TsI-lB, where d and 8 are block tridlagonal matrices and G is a tridiagonal matrix, similar factorization for A and A-i are derived. Specifical...

Given a 3-manifold M , there are generically infinitely many manifold which covers M . However, if we are restricted to the category of knot complements, the situation is quite different. It can be shown (see Lemma 1 and bellow) that if the complement E(K) of a knot K is n-fold covered by some knot complement, then the covering is cyclic, and K admits a cyclic surgery, i.e. a Dehn surgery such ...