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1.
Hong Kong manufacturing firms have been competing in world markets since the 1950’s. Their success has been based on low cost and flexible production and an ability to meet very tight delivery schedules as many of their products are short run fashion items for which consumer demand can be fickle. The opening of China in 1978 has enabled Hong Kong firms to sustain their cost advantages in world markets for a further twenty years. However, the rapid economic development of South China in particular, to which Hong Kong is adjacent, and the competition from lower cost economies in Southeast Asia is leading to pressures on Hong Kong manufacturers to rethink their strategies. Ambitions to continue to compete among world class manufacturers has become a survival strategy. The focus of this paper is to identify and explain the historical development of innovation in the strategies of Hong Kong firms to enable them to continue to dominate niche markets in Europe and the USA and develop a presence in the China market.  相似文献   

2.
Students on the B.A. (honours) in Communication Studies at Sheffield City Polytechnic study linguistics as part of their degree. These students seem to vary considerably in their abilities to analyse sentences. The difficulties that they experience seem to be the same for each successive intake even though the difficulties may not be shared by many students in any particular year. Thus, the teacher of linguistic analysis often needs to resort to individual student tuition to deal with the same problems year after year. The computer aided instruction program described in this paper seeks to overcome these problems. It enables students to progress at their own rate through a series of exercises designed to instruct them in immediate constituent analysis. The program was found to be very successful in achieving its linguistic objectives and also in producing a remarkably high degree of interest in computers.  相似文献   

3.
Computer and video gaming are often considered to be potential routes to the development of aptitude and interest in using other forms of information technology (IT). The purpose of this exploratory study was to determine the extent to which young people who play games engage in related IT practices, such as creating and sharing content or creating fan sites. Additional goals were to identify differences in such practices according to grade level, gender, and access to IT-related resources in the home, as well as to explore relationships between engagement in game-related practices and perceived proficiency in general computer-related skills.  相似文献   

4.
To survive in today’s competitive global market, companies must perform strategic changes in order to increase productivity, eliminating wasted materials, time, and effort. This study will examine how to optimize the time and effort required to supply raw material to different production lines in a manufacturing plant in Juarez, Mexico by minimizing the distance an operator must travel to distribute material from a warehouse to a set of different production lines with corresponding demand. The core focus of this study is similar to that of the Vehicle Routing Problem in that it is treated as a combinatorial optimization problem. The artificial bee colony algorithm is applied in order to find the optimal distribution of material with the aim of establishing a standard time for this duty by examining how this is applied in a local manufacturing plant. Results show that using this approach may be convenient to set standard times in the selected company.  相似文献   

5.
The case study in this research involves a nongovernmental organization (NGO) in Jordan in the Middle East, which attempted to utilize electronic commerce (EC) to streamline its business processes and information flow to businesses in Jordan and to other international businesses interested in the Jordanian market. The NGO managed to achieve these tasks expeditiously, and its EC initiative assisted in adding an effective digital parallel to existing systems and processes in this NGO. The NGO is directly involved in the e-government initiative empowered by H.M. King Abdullah II. At this end, with this royal support, the NGO successfully adopted EC. During the adoption and implementation process, the organization encountered numerous difficulties, as detailed in this research. However, the full success of EC was hampered by other factors. Initially, other governmental entities related indirectly to this NGO were not EC-ready. Second, although Web site utilization was growing in this NGO, most member merchants were reluctant to switch to the online arena and to abandon traditional practices in obtaining information and resources from this NGO. However, the NGO is aware of these concerns and envisages resolving such hurdles in its medium- to long-term projections. © 2007 Wiley Periodicals, Inc.  相似文献   

6.
As telecommunication networks grow in size and complexity, monitoring systems need to scale up accordingly. Alarm data generated in a large network are often highly correlated. These correlations can be explored to simplify the process of network fault management, by reducing the number of alarms presented to the network-monitoring operator. This makes it easier to react to network failures. But in some scenarios, it is highly desired to prevent the occurrence of these failures by predicting the occurrence of alarms before hand. This work investigates the usage of data mining methods to generate knowledge from historical alarm data, and using such knowledge to train a machine learning system, in order to predict the occurrence of the most relevant alarms in the network. The learning system was designed to be retrained periodically in order to keep an updated knowledge base.  相似文献   

7.
The evolutionary learning mechanism in XCS strongly depends on its accuracy-based fitness approach. The approach is meant to result in an evolutionary drive from classifiers of low accuracy to those of high accuracy. Since, given inaccuracy, lower specificity often corresponds to lower accuracy, fitness pressure most often also results in a pressure towards higher specificity. Moreover, fitness pressure should cause the evolutionary process to be innovative in that it combines low-order building blocks of lower accurate classifiers, to higher-order building blocks with higher accuracy. This paper investigates how, when, and where accuracy-based fitness results in successful rule evolution in XCS. Along the way, a weakness in the current proportionate selection method in XCS is identified. Several problem bounds are derived that need to be obeyed to enable proper evolutionary pressure. Moreover, a fitness dilemma is identified that causes accuracy-based fitness to be misleading. Improvements are introduced to XCS to make fitness pressure more robust and overcome the fitness dilemma. Specifically, (1) tournament selection results in a much better fitness-bias exploitation, and (2) bilateral accuracy prevents the fitness dilemma. While the improvements stand for themselves, we believe they also contribute to the ultimate goal of an evolutionary learning system that is able to solve decomposable machine-learning problems quickly, accurately,and reliably. The paper also contributes to the further understanding of XCS in general and the fitness approach in XCS in particular.  相似文献   

8.
Military command and control (C2) organizations are complex socio-technical systems which must constantly adapt to meet changing operational requirements. We describe our experiences in developing a work-centred support system (WCSS) to aid weather forecasting and monitoring in a military airlift C2 organization as an illustrative case. As part of the development process we conducted field observations both before and after introduction of the WCSS in their operations centre. A striking finding was the constant changes that operations personnel faced (changes in goals and priorities, changes in scale of operations, changes in team roles and structure, and changes in information sources and systems). We describe the changes in workplace demands that we observed and the modifications we needed to make to the WCSS in response. For today's fielded systems, it is seldom possible to make changes that are responsive to users' changing requirements in a timely manner. We argue for the need to incorporate facilities that enable users to adapt their systems to the changing requirements of work and point to some promising directions towards evolvable work-centred support systems.  相似文献   

9.
Subroutines for numerical computation have in the past been written mainly in Fortran and in Algol 60, whereas most programming in the future is expected to be in more advanced languages, for example in Ada. It seems to be a great waste if it will become necessary to convert all existing numerical software into the new languages. What is needed is a facility to include subroutines written in the old languages into programs being written in the newer languages. In this paper an automatic procedure to facilitate the use of mixed languages is suggested, the purpose of the paper is to indicate the desirability for providing the required facilities, and to encourage discussion and further research in the area of mixed language programming.  相似文献   

10.
Growing interest in the design of products for the over 50s suggests that it is important to assess what we know of older users in relation to product design. An evaluation of the research carried out in this field reveals that changes normally associated with ageing frequently occur in the 30s and 40s. It would appear to make economic sense if products were designed to be used by those with limited abilities as well by as the able-bodied. It is concluded that there are gaps in the research in this area which need to be addressed in order to guide designers in the specifications of products which are functional, efficient, safe and attractive to older and younger users alike.  相似文献   

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