Browsing by Author "Malero, Augustine"

Now showing 1 - 5 of 5
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    Applying feature transformation using relative frequency with power transformation and lemmatization in automatic spam filtering
    (International Journal of Computer Science & Network Solutions (IJCSNS), 2014) Malero, Augustine
    Advances in Information and communication technology have paved a way for electronic mail commonly referred as email to become the medium of communication. Over the recent years this medium has become the target of abuse through spamming. One of the approaches of combating spamming is the use of automatic spam filtering through machine learning. The conventional features in automatic spam filtering are Term Frequency with Inverse Document Frequency (TFIDF). In this paper, an alternative approach is presented with the use of Relative Frequency with Power Transformation (RFPT) coupled with lemmatization technique. The techniques used considerably show improvements over the conventional one that is TFIDF.
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    Hadoop and big data readiness in Africa: a case of Tanzania
    (International Journal for Scientific Research & Development (IJSRD), 2013) Malero, Augustine; Seif, Hassan
    Big data has been referred to as a forefront pillar of any modern analytics application. Together with Hadoop which is open source software, they have emerged to be a solution to the processing of massive generated both structured and unstructured data. With different strategies and initiatives taken by governments and private institutions in the world towards deployment and support of big data analytics and hadoop, Africa cannot be left isolated. In this paper, we assessed the readiness of Africa with a case study of Tanzania in harnessing the power of big data analytics and hadoop as a tool for drawing insights that might help them make crucial decisions. We used a survey in collecting the data using questionnaires. Results reveal that majority of the companies are either not aware of the technologies or still in their infancy stages in using big data analytics and hadoop. We identified that most companies are in either awakening or advancing stages of the big data continuum. This is attributed by challenges such as lack of IT skills to manage big data projects, cost of technology infrastructure, making decision on which data are relevant, lack of skills to analyze the data, lack of business support and deciding on what technology is best compared to others. It has also been found out that most of the companies' IT officers are not aware with the concepts and techniques of big data analytics and hadoop.
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    ICT usage readiness for private and public secondary schools in Tanzania: A case of Dodoma municipality
    (Foundation of Computer Science, 2015) Malero, Augustine; Ismail, Abbas; Manyilizu, Majuto
    The use of ICT in education has been proved to be a key milestone in improving the learning process in different levels of education. To tap this opportunity, the government of Tanzania has implemented a number of projects aimed at introducing and using ICT in different levels of education. There have been similar initiatives in the private institutions as well. However, such initiatives have been facing different challenges particularly on the readiness of using ICT for education for private and public secondary schools. Thus, this study seeks to understand ICT usage readiness between public and private schools. Results from the Pearson’s Chi Square distribution reveal that there is a relationship between the types of school with the readiness to adopt the use of ICT in teaching with private school being favored. The study has revealed that private secondary schools in Dodoma municipality are better off than public secondary schools in ICT usage readiness. Challenges for ICT usage readiness affecting the two types of schools are identified, and mitigation mechanisms to close the gap between the two types of schools are proposed. This study is significant in that it informs schools' readiness to use ICT for teaching and administrative use. It also shades light on the comparison of ICT usage between private and public schools.
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    Meals, Education, and Gardens for In-School Adolescents (MEGA): study protocol for a cluster randomised trial of an integrated adolescent nutrition intervention in Dodoma, Tanzania
    (BMJ Publishing Group, 2022) Wang, Dongqing; Katalambula, Leonard Kamanga; Modest, Andrea R; Young, Tara; Ismail, Abbas; Mwanyika-Sando, Mary; Tinkasimile, Amani; Mosha, Dominic; Malero, Augustine; Vuai, Said; Fawzi, Wafaie W
    Introduction Secondary schools have the transformative potential to advance adolescent nutrition and provide a unique entry point for nutrition interventions to reach adolescents and their families and communities. Integrated school nutrition interventions offer promising pathways towards improving adolescent nutrition status, food security and building sustainable skill sets. Methods and analysis The Meals, Education, and Gardens for In-School Adolescents (MEGA) project aims to implement and evaluate an integrated, school-based nutrition intervention package among secondary schools in the Chamwino District of Dodoma, Tanzania. MEGA is a cluster-randomised controlled trial, including six public secondary schools assigned to three different arms. Two schools will receive the full intervention package, including school meals, school gardens, nutrition education and community workshops. Two schools will receive the partial intervention package, including the school garden, nutrition education and community workshops. Two schools will serve as the controls and will not receive any intervention. The intervention will be implemented for one academic year. Baseline and end-line quantitative data collection will include 750 adolescents and 750 parents. The domains of outcomes for adolescents will include haemoglobin concentrations, anthropometry, educational outcomes and knowledge, attitudes and practices regarding nutrition, agriculture and health. The domains of outcomes for parents will include knowledge, attitudes and practices of nutrition, agriculture and health. End-line focus group discussions will be conducted among selected adolescents, parents and teachers to assess the facilitators and barriers associated with the intervention. Ethics and dissemination. This study was approved by the Institutional Review Board at Harvard T.H. Chan School of Public Health (approval number: IRB20-1623), the Institutional Research Review Committee at the University of Dodoma (approval number: MA.84/261/02) and the Tanzania National Institute for Medical Research (approval number: NIMR/HO/R.8a/Vol. IX/3801). A manuscript with the research findings will be developed for publication.
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    Measuring security awareness on mobile money users in Tanzania
    (Seventh Sense Research Group, 2015) Malero, Augustine
    Over the recent years, Mobile Money has placed itself as a means for banking services for the unbanked in the developing world. Due to the ease of using the service, the number of subscribers using the service has increased tremendously. However, security concerns have also been raised as the service relies on customer identification document and PIN for authentication mechanisms. In this study a list of questions were posed to respondents with different levels of education, gender and age. The questions were intended to measure the level of security awareness when using M-Money services among the respondents. Results reveal that generally respondents have a high level of understanding. It is also noted that respondents with higher levels of education and those falling within the age group 25-36 years are more aware than respondents of other groups.