This thesis addresses the problem of sharing and transferring knowledge within knowledge-intensive organisations from a user modelling perspective with the purpose of improving individual and group performance. It explores the idea of creating organisational environments from which any of the users involved can benefit by being aware of each other such that sharing expertise between those who are knowledge providers and those who are knowledge seekers can be maximised. In order to encourage individuals to share such valuable expertise, it also explores the idea of keeping a balance between ensuring the availability of information and the increase in user workloads due to the need to handle unwanted information. In an attempt to demonstrate the ideas mentioned above, this research examines the application of user modelling techniques to the development of communication-based task learning systems based on e-mail communication. The design rationale for using e-mail is that personally held expertise is often explicated through e-mail exchanges since it provides a good source for extracting user knowledge. The provision of an automatic message categorisation system that combines knowledge acquired from both statistical and symbolic text learning techniques is one of the three themes of this work. The creation of a new user model that captures the different levels of expertise reflected in exchanged e-mail messages, and makes use of them in linking knowledge providers and knowledge seekers is the second. The design of a new information distribution method to reduce both information overload and underload is the third.

Citizen sensor networks are open information systems in which members of the public act as information providers. The information distributed in such networks ranges from observations of events (e.g. noise measurements or monitoring of environmental parameters) to probabilistic estimates (e.g. projected traffic reports or weather forecasts). However, due to rapid advances in technology such as high speed mobile internet and sophisticated portable devices (from smart-phones to hand-held game consoles), it is expected that citizen sensor networks will evolve. This evolution will be driven by an increase in the number of information providers, since, in the future, it will be much easier to gather and communicate information at a large scale, which in turn, will trigger a transition to more commercial applications. Given this projected evolution, one key difference between future citizen sensor networks and conventional present ones is the emergence of self-interested behaviour, which can manifest in two main ways. First, information providers may choose to commit insufficient resources when producing their observations, and second, they may opt to misreport them. Both aspects of this self-interested behaviour are ignored in current citizen sensor networks. However, as their applications are broadened and commercial applications expand, information providers are likely to demand some kind of payment (e.g. real or virtual currency) for the information they provide. Naturally, those interested in buying this information, will also require guarantees of its quality. It is these issues that we deal with in this thesis through the introduction of a series of novel two-stage mechanisms, based on strictly proper scoring rules. We focus on strictly proper scoring rules, as they have been used in the past as a method of eliciting truthful reporting of predictions in various forecasting scenarios (most notably in weather forecasting). By using payments that are based on such scoring rules, our mechanisms effectively address the issue of selfish behaviour by motivating information providers in a citizen sensor network to, first, invest the resources required by the information buyer in the generation of their observations, and second, to report them truthfully. To begin with, we introduce a mechanism that allows the centre (acting as an information buyer) to select a single agent that can provide a costly observation at a minimum cost. This is the first time a mechanism has been derived for a setting in which the centre has no knowledge of the actual costs involved in the generation of the agents' observations. Building on this, we then make two further contributions to the state of the art, with the introduction of two extensions of this mechanism. First, we extend the mechanism so that it can be applied in a citizen sensor network where the information providers do not have the same resources available for the generation of their observations. These different capabilities are reflected in the quality of the provided observations. Hence, the centre must select multiple agents by eliciting their costs and the maximum precisions of their observations and then ask them to produce these observations. Second, we consider a setting where the information buyer cannot gain any knowledge of the actual outcome beyond what it receives through the agents' reports. Now, because the centre is not able to evaluate the providers' reported observations through external means, it has to rely solely on the reports it receives. It does this by fusing the reports together into one observation which then uses as a means to assess the reports of each of the providers. For the initial mechanism and each of the two extensions, we prove their economic properties (i.e. incentive compatibility and individual rationality) and then present empirical results comparing a number of specific scoring rules, which includes the quadratic, spherical, logarithmic and a parametric family of scoring rules. These results show that although the logarithmic scoring rule minimises the mean and variance of an agent's payment, using it may result in unbounded payments if an agent provides an observation of poor quality. Conversely, the payments of the parametric family exhibit finite bounds and are similar to those of the logarithmic rule for specific values of the parameter. Thus, we show that the parametric scoring rule is the best candidate in our setting. We empirically evaluate both extended mechanisms in the same way, and for the first extension, we show that the mechanism describes a family of possible ways to perform the agent selection, and that there is one that dominates all others. Finally, we compare both extensions with the peer prediction mechanism introduced by \cite{trustsr1} and show that in all three mechanisms the total expected payment is the same, while for both our mechanisms the variance in the total payment is significantly lower.

This study aims to investigate the strengths and weaknesses of the information technology services in academic libraries in Saudi Arabia and to propose ways in which these services could be developed. The methodology applies theoretical models, questionnaires and structured interviews. Two models were developed to investigate the behaviour of academic staff and students, the first representing users' cognitive attitudes and the degree of user-satisfaction with the services provided. The second model examines interactions between the university administration, computer centres and libraries. Questionnaires and interviews have been used to generate empirical findings. The main findings concentrate on the following issues. Most respondents had used computers either on or off campus. Use of computers at the selected universities was found to vary significantly. Respondents from science faculties were found to use technology more than other users. IT systems, network infrastructure and the availability of qualified staff were, to varying degrees, found to be a constant source of concern and a hindrance to the provision of effective services. There was no consistent pattern of use and there was frequently a failure to provide any service at all. The only means for academic staff and users to gain access to the Internet was through departmental provision as, at the time of this research, this was not available in the libraries. A lack of funding, qualified staff, programmers and connections to the computer networks are regarded as major reasons for not providing efficient electronic services to users. The main recommendations of this study are that coordination and co-operation between libraries, making full use of technology, should be established. Universities should lobby the Finance Ministry to argue for a change in the regulations to allow libraries to generate their own revenue in order to enhance existing services. University administrations, computer centres and academic departments should establish formal procedures to provide effective electronic services to users. The present provision of training facilities for both staff and students needs to be extensively reviewed and enhanced.

M.Sc. / South Africa is a country with huge developmental challenges. In Africa, it is one of the few countries that have really incorporated the concepts of the information society into the fundamental reconstruction and development process. Appropriate political commitment, policy frameworks and legislation have largely been established to provide the environment in which effective information management can develop and information can be made widely available for democratic management of the country (MacDevette, 1998). It is within this framework that the development of Environmental Information Systems (EISs) for industry is taking place. The mining industry is no exception. As one of South Africa’s largest employers and natural resources users, the mining industry through its activities creates numerous environmental impacts. These environmental impacts, together with relevant legislation, sustainability reporting and international environmental standards, require mining management to capture and analyse large quantities of environmental data. The management and analysis of such data and its transformation into information requires an active environmental management strategy. It is the aim of this thesis to determine how and possibly why an Environmental Information System (EIS) can influence environmental strategy in the mining industry. Furthermore, to ascertain if mine size played a role in determining environmental strategy through the implementation and use of an EIS. In order to answer this question an electronic survey was emailed to the environmental managers at all of the mines within South Africa’s geographical boundaries. The results of the survey indicated that larger mines place more emphasis on ensuring that EISs can meet corporate environmental requirements, by ensuring that the required environmental parameters of an effective EIS are in place. It was concluded that implementation and use of an effective environmental information system would help meet the challenge of corporate environmental strategy within the South African mining industry.

For assessment, a pre-test/post-test approach was used to measure the learning effects of the use of WebQuests. The tests assessed students' overall achievement of the target learning outcomes. Besides, the work completed by students throughout the WebQuest activities was evaluated by using four specially designed rubrics. During the implementation of the WebQuests, the physical activities and the computer screens of five working groups were video recorded. After the implementation, the five working groups were also interviewed to gather information regarding their learning processes and what they had learned throughout the WebQuests. / Information literacy is generally defined as a set of abilities enabling individuals to recognize when information is needed and have the capacity to locate, evaluate, and use effectively the needed information. As a consequence of the ongoing proliferation of information resources on the Web, information literacy is required and gains a high profile as central to education. Since the late 1990s, the concept of WebQuest has been developed to promote higher-order thinking through authentic assignments that emphasize inquiry-based and cooperative learning. The WebQuest model stresses the evaluation, analysis, and transformation of information. In linking the two concepts, there are discussions and theoretical assertions suggesting WebQuest as a useful tool for helping improve information literacy. / Owing to the suggested use of WebQuest for information literacy training, the study investigated if WebQuest activities supported the improvement of information literacy. Specifically, the research was intended to act as an empirical study for verifying the theoretical assertions. It was like a treatment study investigating whether using a set of well-designed WebQuests, as treatment, could yield significant improvement in developing students' information skills, in order to help junior secondary students achieve a set of specific learning outcomes defined in the Information Literacy Framework for Hong Kong Students. / The findings of the study have implications for future research and practice in the area of employing the WebQuest model for information literacy instruction. Concerning the growing body of WebQuest research, the findings of this dissertation work contribute to the inadequate literature by enriching the empirical data. For practical concern, information gained from this study may have significant implications and provide useful reference for implementing the Information Literacy Framework for Hong Kong Students at Junior Secondary level. / The results indicated significant treatment effect on the overall achievement of the target learning outcomes for information literacy. Individually, the test results indicated significant treatment effect on five out of the seven learning outcomes. Among the five, large effect size was found for one, and medium effect size was found for the other four. For another two learning outcomes, findings from the qualitative data showed that the primary reason for the failure was about the absence of practice for the information skills concerned owing to some sort of supports given to students, the Web materials given in the WebQuests, and the implicit learning opportunities provided in the WebQuest. / The study took place in a co-educational secondary school in Hong Kong lasting for about three months. One hundred and forty junior students constituted the sample of the research. Four self-designed and adapted WebQuests were involved in the study as instruments aiming to help students practice their information skills in order to achieve seven learning outcomes for information literacy. The WebQuests were delivered to five groups of S.2 students through the Computer lessons. Each group consisted of 20 mixed ability students representing half of a S.2 class in the school. / by Tsui, Yuen. / Advisers: Fong Lok Lee; Ho Man Lee. / Source: Dissertation Abstracts International, Volume: 73-02, Section: A, page: . / Thesis (Ed.D.)--Chinese University of Hong Kong, 2010. / Includes bibliographical references (leaves 250-264). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Electronic reproduction. [Ann Arbor, MI] : ProQuest Information and Learning, [201-] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Abstract also in Chinese.

Described as accommodating both traditional and new information spaces (Fourie 2002: 53), the Web has significantly changed the milieu of research and study. The study determined how this changing research and study environment has affected the research behaviour of students in African higher education environments, specifically at the research entry level of master's degree programmes. The study examined both explicit examples of the affect of the Web on students' citation behaviour and tacit influences that may have determined the extent of this affect. Explicit examples of the affect of the Web were drawn from analysing changes in the citation patterns of Master of Information Studies (MIS) theses during a period of access to the Web, and specifically in the years 1996, 1999 and 2002. Tacit influences on students' citation behaviour were inferred from an investigation of the level and nature of MIS supervisors' use and support of the Web for research and of a background study of the facilities, resources and services supporting student access to the Web at the University of Natal, Pietermaritzburg. Findings of this study concluded that the use of the Web medium has grown and in 2002 accounted for 17.5% of all citations included in MIS bibliographies. However use of this medium is disparate with a few bibliographies accounting for much of this growth. Findings indicated that the Web medium was mostly utilised for the delivery of sources that do not meet the traditional description of a scholarly source. The study also found that the Web was used as an alternative medium for the delivery of informal and grey literature sources without necessarily increasing the level of use of these sources. The study revealed greater support for this medium from the masters programme's supervisors than was evidenced from a citation analysis of the bibliographies of theses. Disparities in the support of this medium for research, within the University of Natal, Pietermaritzburg's supporting infrastructure was also observed. Recommendations drawn from these conclusions include the need for greater intervention from teaching faculty, librarians and the institution in the provision of clear guidelines of expectations, relevant instruction and sufficient physical access at points of expertise, to effectively support the use of Web resources. / Thesis (M.I.S.)-University of KwaZulu-Natal, Pietermaritzburg, 2004.

Thesis (PhD)--Macquarie University, Australian Centre for Educational Studies, School of Education, 2009. / "2008". Bibliography: p. 268-283.

The study investigated the effect of accessibility and utilization of electronic resources by academic staff on productivity at the University of Calabar and the University of Ibadan, Nigeria. In order to determine the effect of accessibility and utilization of e-resources on productivity of academic staff, a lone hypothesis was formulated thus: there is no significant correlation between accessibility and utilization of e-resources and productivity of academic staff in Nigerian universities. The study adopted quantitative approach as research paradigm; with survey and bibliometrics as research methods. Questionnaire was used as the primary instrument for data collection on accessibility and utilization of e-resources and productivity of academic staff in the study. The population of 2035 academic staff and sample size of 586 academic staff were used for the study, and a response rate of 55.29% was obtained for data analysis. The data for the study were analysed with SPSS. The finding of the study revealed that there is significant correlation between accessibility and utilization of e-resources and productivity of academic staff at the surveyed universities (r=0.135; p=0.004), especially at the level of international publication (r=0.158; p=0.004). The study concluded that there is a positive effect due to accessibility and utilization of e-resources on productivity at the surveyed universities. Further findings of the study revealed a low level of electronic information environment at the surveyed universities in relation to global practices; although, the University of Ibadan was found to have a better electronic information environment than the University of Calabar. The result from questionnaire survey revealed that the University of Calabar was more productive than the University of Ibadan; the converse was obtained with bibliometric analysis as the University of Ibadan was found to be more productive than the University of Calabar. From the findings of the study the influence of demographic variables (discipline, gender, age, education and professional rank) on accessibility and utilization of e-resources was not significant at the surveyed universities. The study recommended increased investment in ICT facilities at the surveyed universities to promote increase in accessibility and utilization of e-resources by academic staff in research. / Information Science / D.Litt et. Phil. (Information Science)

The study investigated the effect of accessibility and utilization of electronic resources by academic staff on productivity at the University of Calabar and the University of Ibadan, Nigeria. In order to determine the effect of accessibility and utilization of e-resources on productivity of academic staff, a lone hypothesis was formulated thus: there is no significant correlation between accessibility and utilization of e-resources and productivity of academic staff in Nigerian universities. The study adopted quantitative approach as research paradigm; with survey and bibliometrics as research methods. Questionnaire was used as the primary instrument for data collection on accessibility and utilization of e-resources and productivity of academic staff in the study. The population of 2035 academic staff and sample size of 586 academic staff were used for the study, and a response rate of 55.29% was obtained for data analysis. The data for the study were analysed with SPSS. The finding of the study revealed that there is significant correlation between accessibility and utilization of e-resources and productivity of academic staff at the surveyed universities (r=0.135; p=0.004), especially at the level of international publication (r=0.158; p=0.004). The study concluded that there is a positive effect due to accessibility and utilization of e-resources on productivity at the surveyed universities. Further findings of the study revealed a low level of electronic information environment at the surveyed universities in relation to global practices; although, the University of Ibadan was found to have a better electronic information environment than the University of Calabar. The result from questionnaire survey revealed that the University of Calabar was more productive than the University of Ibadan; the converse was obtained with bibliometric analysis as the University of Ibadan was found to be more productive than the University of Calabar. From the findings of the study the influence of demographic variables (discipline, gender, age, education and professional rank) on accessibility and utilization of e-resources was not significant at the surveyed universities. The study recommended increased investment in ICT facilities at the surveyed universities to promote increase in accessibility and utilization of e-resources by academic staff in research. / Information Science / D.Litt et. Phil. (Information Science)

Thesis (MTech (Business Information Systems))--Cape Peninsula University of Technology, 2016. / The aim of this research study is to explore the management of electronic resources used in libraries. Three tertiary institutions were used as case studies. The unit of analysis was the three libraries, with library employees (14) working and managing electronic resources being the unit of observation. Non-random, purposive sampling techniques were used. The finding of this study suggests that the participants do not use the Aleph integrated library system (ILS) optimally to manage electronic resources. Library employees do not keep up with current and new emerging technology trends in the library and academic environment. There is a lack of training, as well as understanding, of business processes and workflows. This is emphasised by a lack of knowledge of library system environments and, finally, the high cost of implementing the library systems. Electronic resource management (ERM) systems emerged in the early 2000s, and it became clear that traditional integrated library systems did not have sufficient capacity to provide efficient processing for meeting the changing needs and challenges of libraries at tertiary institutions. Libraries find it challenging to manage the wide range of licensed electronic resources, collaborating, cooperating and sharing resources with different libraries. The increasing number of electronic resource demands from users for remote or off campus access makes it difficult for libraries to manage electronic resources. As a result of this inability to manage the electronic resources, libraries are not effectively and efficiently using appropriate electronic resource systems to meet their business requirements.