No description available.

No description available.

M. Tech. Electrical Engineering. / Telecommunication databases contain billions of records and are among the largest in the world, reaching around 30 terabits (30 trillion bits). Data mining is a proven solution for analysing such large volumes of data where traditional methods of turning data into knowledge are impractical. However, the increasing size (scalability), complexity (complex data types) and high dimensionality of telecommunication databases pose a significant challenge for conventional data mining approaches. In this dissertation, a matrix decomposition method (Singular Value Decomposition or SVD) is used to improve data mining for subscriber classification in mobile cellular networks. Using a large real mobile network dataset, the performance of a standard data mining approach (for clustering analysis) is evaluated when it is used with, and without, matrix decomposition. The proposed approach decreases the computational cost, for a given size of data (in terms of number of rows and columns). We also demonstrate improvement of the quality of clusters, yielding the following improvements in clustering assessment indices: 2.45% in Jaccard score, 3.5% in purity, and 1.35% in efficiency. Subscribers with different behaviours in the network are classified on the basis of various features; SVD analysis on their voice, text message, and data usage patterns are also performed. The proposed data mining model can be used for business intelligence activities such as customer segmentation, traffic modelling and social network analysis.

by Wong Po Choi. / Bibliography: leaves 47-50 / Thesis (M.Ph.)--Chinese University of Hong Kong, 1985

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No description available.

Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2007. / Applications are normally developed with a specific purpose in mind and when new features are needed the source code has to be modified, recompiled and redistributed. It will be more beneficial if new features can be dynamically added during runtime without the need to disrupt execution, especially in the case of ground station software. This thesis is about the implementation of a dynamic development environment within which a modular system can be created from existing components that can be extended with additional components at any time. The interaction between these components can then be specified which can result in a completely automated system. It is concluded that the graphical tools of such an environment can make it easy for people who do not necessarily have programming knowledge to build a system from existing components that can be extended and reconfigured whenever necessary.

by Lam Chak Hou, Sunny, Yung Kai Tin, William. / Thesis (M.B.A.)--Chinese University of Hong Kong, 1993. / Includes bibliographical references (leaf 58). / ABSTRACT --- p.i / TABLE OF CONTENTS --- p.ii / LIST OF FIGURES --- p.iii / PREFACE --- p.iv / CHAPTER / Chapter I. --- INTRODUCTION --- p.1 / Study Objectives --- p.4 / Chapter II. --- APPROACHES AND METHODOLOGY --- p.5 / Approach --- p.5 / Methodology --- p.6 / Chapter III. --- THE COMPANY --- p.8 / Hongkong Telecom (HKT) --- p.8 / Subsidiaries --- p.9 / Joint Ventures --- p.11 / Chapter IV. --- EXISTING SYSTEMS --- p.12 / Real-time Online Sales Executive (ROSE) --- p.15 / Subscriber Services Control (SSC) --- p.16 / Subscriber Billing (SBS) --- p.17 / Shortfalls of existing systems --- p.19 / Chapter V. --- DRAGON PROJECT --- p.21 / Background --- p.21 / Dragon System Functional Description --- p.23 / Dragon Project Team --- p.29 / Initial Project Plan --- p.32 / Project Management Mechanism --- p.34 / Project Status --- p.36 / Chapter VI. --- PROBLEMS --- p.38 / Chapter VII. --- CONCLUSIONS --- p.43 / Chapter VIII --- RECOMMENDATIONS --- p.49 / Dragon Project --- p.49 / Package Implementation in general --- p.54 / Final Comments --- p.58 / BIBLIOGRAPHY --- p.59