Search results

Purpose — To develop methodologies to evaluate search engines according to an individual's preference in an easy and reliable manner, and to formulate user-oriented metrics to compare freshness and duplication in search results.

Design/methodology/approach — A personalised evaluation model for comparing search engines is designed as a hierarchy of weighted parameters. These commonly found search engine features and performance measures are given quantitative and qualitative ratings by an individual user. Furthermore, three performance measurement metrics are formulated and presented as histograms for visual inspection. A methodology is introduced to quantitatively compare and recognise the different histogram patterns within the context of search engine performance.

Findings — Precision and recall are the fundamental measures used in many search engine evaluations due to their simplicity, fairness and reliability. Most recent evaluation models are user oriented and focus on relevance issues. Identifiable statistical patterns are found in performance measures of search engines.

Research limitations/implications — The specific parameters used in the evaluation model could be further refined. A larger scale user study would confirm the validity and usefulness of the model. The three performance measures presented give a reasonably informative overview of the characteristics of a search engine. However, additional performance parameters and their resulting statistical patterns would make the methodology more valuable to the users.

Practical implications — The easy-to-use personalised search engine evaluation model can be tailored to an individual's preference and needs simply by changing the weights and modifying the features considered. A user is able to get an idea of the characteristics of a search engine quickly using the quantitative measure of histogram patterns that represent the search performance metrics introduced.

Originality/value — The presented work is considered original as one of the first search engine evaluation models that can be personalised. This enables a Web searcher to choose an appropriate search engine for his/her needs and hence finding the right information in the shortest time with the least effort.

This study presents an innovative approach to Information and communication technology (ICT) skill training and employment generation for out-of-school and disadvantaged youths in Africa. With technical and policy assistance from the World Bank, ICTs can be used to revitalize technical and vocational training to meet skill and employment needs of disadvantaged youths in the region. The deplorable conditions of out-of-school youth and the state of secondary education in Africa underscore the urgency to engage disadvantaged youth in productive economic activities. An ICT-enhanced technical and vocational training program in Africa provides both private and social gains: it provides economic prospects for disadvantaged youth and; it adds to the development of the knowledge economy in Africa. The NairoBits Digital Design School in Kenya is presented as a model of a vocational and training school that uses ICTs to improve skill formation among disadvantaged youths in informal settlements in urban Africa. Meeting the objectives of an ICT-based training and employment generation program for underprivileged youth in Africa require strong regulatory frameworks and contributions from the World Bank. The involvement of the bank, particularly through private sector grants for ICT skill train in Africa will help to revitalize technical and vocational education and training in the region. Above all, the collaboration of government agencies, private businesses, other international development agencies and civil society groups in ICT skill training will help to meaningfully engage African youths in the development of their communities in the emerging knowledge economy.

The study was conducted to assess the extent of readiness of higher education curriculum in Nigeria in meeting the demands of the 21st century, to identify the possible challenges facing higher education institutes in Nigeria in meeting the demands of the 21st century and to suggest ways of restructuring higher education curriculum in Nigeria to make it responsive to economic social and political demands of the 21st century. The sample for this study consisted of two hundred (200) respondents drawn from the stakeholders in the education industry which includes curriculum planners, lecturers and students. The study employed the descriptive survey design. The instrument for data collection consisted of structured questionnaire and focus group discussion. The findings from the study revealed, among other things, that higher education curriculum in Nigeria is not yet ready to meet the demands of the 21st century. The reasons for this include poor funding, poor infrastructural facilities, corruption, poor technological/ICT knowledge, lack of collaboration between higher education curriculum planners and labour force, etc. Based on the findings of this study, it was recommended that funding higher education in Nigeria should be given priority, and the stakeholders in the labour force and industry should be involved in curriculum planning. Higher education curriculum should encourage practical hands-on experience for graduates of higher education in Nigeria to make them relevant in the 21st century.