To optimize large-scale distribution networks, solving about 1000 middle scale (around 40 cities) TSPs (Traveling Salesman Problems) within an interactive length of time (max. 30 seconds) is required. Yet, expert-level (less than 3%) accuracy necessary. To realize the above requirements, a knowledge-embedded multi-stage GA method was developed. This method combines a high-speed GA with a knowle...

7. Let A be the 20000 × 20000 matrix whose entries are zero everywhere except for the primes 2, 3, 5, 7, · · · , 224737 along the main diagonal and the number 1 in all the positions aij with |i− j| = 1, 2, 4, 8, · · · , 16384. What is the (1, 1) entry of A−1. Lawrence Berkeley National Laboratory, Berkeley, CA 94720. [email protected]. This work was supported by the Director, Office of Computati...

Information Technology or IT is a combination of technology itself and collection services that ensure the effective implementation overall in an organization. Like other services, Service Management (ITSM) has become global subject because managing only possible through efficient ITSM protocols. A well-implemented delivery system improves quality which eventually enhances organization’s capaci...

Large scale linear algebra computations to obtain exact and symbolic results are now possible. Algorithmic developments in the last decade or two together with implementation in the software library LinBox [2] are part of the reason this is so. In this poster we illustrate the current state of the art by discussing three approaches to a challenging linear problem. Trefethen has posed a “Hundred...

Organisations are looking to best practice frameworks such as the IT Infrastructure Library (ITIL) to improve the quality of their IT Service Management. This paper describes the approach taken by a large UK-based bank in adopting ITIL and gaining certification to BS 15000 and ISO/IEC 20000. The use of cognitive mapping enables a focus on the concepts which drive the manager’s view of ITIL impl...