Ubiquitous Semantic Applications

As Semantic Web technology evolves many open areas emerge, which attract more research focus. In addition to quickly expanding Linked Open Data (LOD) cloud, various embeddable metadata formats (e.g. RDFa, microdata) are becoming more common. Corporations are already using existing Web of Data to create new technologies that were not possible before. Watson by IBM an artificial intelligence computer system capable of answering questions posed in natural language can be a great example. On the other hand, ubiquitous devices that have a large number of sensors and integrated devices are becoming increasingly powerful and fully featured computing platforms in our pockets and homes. For many people smartphones and tablet computers have already replaced traditional computers as their window to the Internet and to the Web. Hence, the management and presentation of information that is useful to a user is a main requirement for today’s smartphones. And it is becoming extremely important to provide access to the emerging Web of Data from the ubiquitous devices. In this thesis we investigate how ubiquitous devices can interact with the Semantic Web. We discovered that there are five different approaches for bringing the Semantic Web to ubiquitous devices. We have outlined and discussed in detail existing challenges in implementing this approaches in section 1.2. We have described a conceptual framework for ubiquitous semantic applications in chapter 4. We distinguish three client approaches for accessing semantic data using ubiquitous devices depending on how much of the semantic data processing is performed on the device itself (thin, hybrid and fat clients). These are discussed in chapter 5 along with the solution to every related challenge. Two provider approaches (fat and hybrid) can be distinguished for exposing data from ubiquitous devices on the Semantic Web. These are discussed in chapter 6 along with the solution to every related challenge. We conclude our work with a discussion on each of the contributions of the thesis and propose future work for each of the discussed approach in chapter 7

Factors Affecting Adoption of Mobile Marketing in the Telecommunications Industry in Tanzania.

The aim of the study was to examine the factors affecting adoption of mobile marketing in the telecommunications industry in Tanzania by extending the Technology Acceptance Model (TAM) through a new construct of Perceived Market Characteristics (PMK), by forming a theoretical framework, which integrated TAM with Diffusion of Innovation Theory (DOI). The study employed Survey strategy in data collection. Data were collected from 5 municipalities, 73 wards and 6 hamlets in Dar es Salaam, by using multi stage sampling. A sample of 440 respondents was drawn from the target population. Quantitative data were analyzed based on descriptive statistical analysis, Pearson correlation analysis and multiple linear regression analysis. Findings of this study have indicated that, the independent variables have contributed 70% in explanation of the customer’s adoption in mobile marketing in Telecommunication industry in Tanzania. The findings revealed that perceived usefulness, perceived ease of use, perceived trust and perceived customer knowledge had significant and positive influence on adoption of mobile marketing, while perceived online negotiation did not influence adoption of mobile marketing in the telecommunication industry in Tanzania. The study indicates parsimonious contribution in knowledge by using small variables in predicting the customer’s adoption of mobile marketing in telecommunication industry in Tanzania. The findings of the study had significant practical implications for telecommunication industries in the context of developing countries. Keywords: Mobile marketing, Perceived usefulness, perceived ease of use, perceived customer knowledge, perceived online negotiatio

Perceived value of advanced mobile messaging services: A cross-cultural comparison of Greek and Spanish users

Purpose The purpose of this paper is to analyse the role of perceived value on post-acceptance behaviour for users of advanced mobile messaging services (AMMS). The paper also compares differences in the influence of perceived value on satisfaction and of satisfaction on loyalty to AMMS in Spain and Greece, to test the moderating effect of culture. Design/methodology/approach Partial least squares path modelling is used to test the model. Perceived value is modelled as a multidimensional reflective construct with four dimensions. Culture is studied at a national level. Differences between countries are tested using the multigroup analysis approach proposed by Henseler et al. (2009). Findings Perceived value contributes significantly to satisfaction. Satisfaction also has a significant effect on loyalty. Regarding the moderating effect of culture, the influence of perceived value on satisfaction is higher in Greece than in Spain. The authors report similar findings for the effect of satisfaction on loyalty, demonstrating the relevant moderating role of cultures with different degrees of masculinity, uncertainty avoidance and collectivism. Practical implications This cross-cultural comparison enables mobile phone companies to understand how to provide the greatest value with AMMS in each country in order to increase user satisfaction and loyalty to the service. Originality/value This is one of the first studies that develops cross-cultural research to analyse the post-acceptance of mobile services. It analyses the effect of perceived value and satisfaction, making an original comparison of two countries generally considered too similar to be compared

The Proceedings of the 23rd Annual International Conference on Digital Government Research (DGO2022) Intelligent Technologies, Governments and Citizens June 15-17, 2022

The 23rd Annual International Conference on Digital Government Research theme is “Intelligent Technologies, Governments and Citizens”. Data and computational algorithms make systems smarter, but should result in smarter government and citizens. Intelligence and smartness affect all kinds of public values - such as fairness, inclusion, equity, transparency, privacy, security, trust, etc., and is not well-understood. These technologies provide immense opportunities and should be used in the light of public values. Society and technology co-evolve and we are looking for new ways to balance between them. Specifically, the conference aims to advance research and practice in this field. The keynotes, presentations, posters and workshops show that the conference theme is very well-chosen and more actual than ever. The challenges posed by new technology have underscored the need to grasp the potential. Digital government brings into focus the realization of public values to improve our society at all levels of government. The conference again shows the importance of the digital government society, which brings together scholars in this field. Dg.o 2022 is fully online and enables to connect to scholars and practitioners around the globe and facilitate global conversations and exchanges via the use of digital technologies. This conference is primarily a live conference for full engagement, keynotes, presentations of research papers, workshops, panels and posters and provides engaging exchange throughout the entire duration of the conference

E-government iImplementation and adoption: the case study of Botswana Government

ABSTRACT The advancements in the ICT and internet technologies challenge governments to engage in the electronic transformation of public services and information provision to citizens. The capability to reach citizens in the physical world via e-government platform and render a citizen-centric public sector has increasingly become vital. Thus, spending more resources to promote and ensure that all members of society are included in the entire spectrum of information society and more actively access government online is a critical aspect in establishing a successful e-government project. Every e-government programme requires a clear idea of the proposed benefits to citizens, the challenges to overcome and the level of institutional reform that has to take place for e- government to be a success in a given context. E-government strategy is fundamental to transforming and modernising the public sector through identification of key influential elements or strategy factors and ways of interacting with citizens. It is therefore apparent that governments must first understand variables that influence citizens’ adoption of e-government in order to take them into account when developing and delivering services online. Botswana has recently embarked on e-government implementation initiatives that started with the e-readiness assessment conducted in 2004, followed by enactment of the National ICT policy of 2007 and the approval of the e-government strategy approved in 2012 for dedicated implementation in the 2014 financial year. Significant developments have taken place around national and international connectivity including initiatives that offer connectivity to citizens such as the I- partnership, community run Nteletsa projects, post office run tele-centres and Sesigo projects that have been deployed on a wider Botswana. In spite of these remarkable initiatives there is no change management strategy in place and evidence to suggest that citizens cluster groups, government employees, key influential citizens’ stakeholders and other local government administrative governing structures at district levels have been appropriately informed, consulted, engaged and participated in the design, development and implementation initiatives. This position has contributed largely to low e-readiness indices for Botswana, low PC, Internet and broadband penetration levels, which do not commensurate with levels of connectivity initiatives already in place and operational. The strategy development, which is the viability business plan for the entire project has been initiated and concluded without the appropriate input of citizens, employees and local government structures at the districts. Considering that that e-government is new and narrowly researched in Botswana. There is non existing research on both the impact of strategy factors to e-government implementation success and citizens’ involvement and participation in the e-government design and implementation through to adoption and continual use. This study therefore explores and investigates empirically the key e-government strategy influential success elements and the how citizens’ involvement and participation in e-government development can be secured, supported and facilitated towards adoption and continual future use. This culminates in the proposal of both theoretically supported and empirically validated e-government strategy framework and citizen centric conceptual model. The study is crucial as it aims understand how can influences upon success in e-government project be better understood and citizens’ stakeholder adoption of e-government enhanced to facilitate successful development of e-government in Botswana and is also timely as it comes at the time when Botswana has not yet implemented her e-government strategy, hence factors identified are critical to both strategy re-alignment and design of the citizens’ involvement and participation change management strategy to support both implementation and citizens’ adoption of e-government in Botswana. The study utilises the mixed methods research, employing both qualitative and quantitative methods to address the research question and triangulated data collection approaches used to select survey sample for two questionnaire sets carried on opinion holders within government and non government structures and ordinary citizens, use of observations on operating tele-centres, interviews with key e-government strategic stakeholders and document analysis which included e-government policies and related documentations as well as extensive review of e-government published literature including applied implementation and citizens adoption experiences of developing and developed countries. In the analysis of data the multiple regression analysis has been utilised and multivariate analysis performed to ensure linearity, normality and collinearity. The linear regression has been used to test the hypothesis through the Analysis of variance (ANOVA) technique. Keywords E-government, strategy critical success factors, key influential elements, citizen centric conceptual model, strategy framework, Botswana.Botswana International University of Science and Technology (BIUST)Botswana Embass

HealthCyberMap: Mapping the Health Cyberspace Using Hypermedia GIS and Clinical Codes

HealthCyberMap () is a Semantic Web service for healthcare professionals and librarians, patients and the public m general that aims at mappmg parts of medical/ health information resources in cyberspace in novel ways to improve their retrieval and navigation. The Semantic Web ( and ) aims to be the next-generation World Wide Web by giving machine-readable semantics and context to the currently presentation-based Web pages. HealthCyberMap features an unconventional use of GIS (Geographic Information Systems) to map conceptual spaces occupied by collections of medical/ health information resources. Besides mapping the semantic and non-geographical aspects of these resources using suitable spatial metaphors, HealthCyberMap also collects and maps the geographical provenance of these resources. Some of HealthCyberMap Web interfaces are visual (maps for browsing resources by clinical/ health topic, by provenance and by type), while others are textual (multilingual interfaces for browsing resources by language, and a directory of topical resource categories, besides HealthCyberMap Semantic Subject Search Engine that goes beyond conventional free-text and keyword-based search engines, and supports synonyms, disease variants, subtypes, as well as some semantic relationships between terms). HealthCyberMap adopts a clinical metadata framework built upon a clinical coding scheme (vocabulary or ontology—ICD-9-CM* clinical classification in the current pilot service). Clinical coding schemes serve as a reliable common backbone for topical resource indexing, automated topical classification, topical visualisation and navigation of coded resource pools (using suitable metaphors), and enhanced information retrieval and linking. A resource metadata base based on Dublin Core metadata set with HealthCyberMap’s own extensions holds information about selected high-quality resources. HealthCyberMap then uses GIS spatialisation methods to generate interactive navigational cybermaps from the metadata base. These visual cybermaps are based on familiar metaphors for image-word association to give users a broad overview and understanding of what is available in this complex conceptual space of medical/ health Internet resources and help them navigate it more efficiently and effectively. HealthCyberMap cybermaps can be considered as semantically-spatialised, ontology-based browsing views of the underlying resource metadata base. Using a clinical coding scheme as a metric for spatialisation (“semantic distance”) is unique to HealthCyberMap and is very much suited for the semantic categorisation and navigation of medical/ health Internet information resources. HealthCyberMap also introduces a useful form of cyberspatial analysis for the detection of topical coverage gaps in its resource pool using choropleth (shaded) maps of human body systems. The project features a cost-effective method for serving Web hypermaps with dynamic metadata base drill-down functionality. It also demonstrates the feasibility of Electronic Patient Record to Online Information Services (like HealthCyberMap) Problem to Knowledge Linking using clinical codes as crisp problem-knowledge linkers or knowledge hooks. The Semantic Subject Search Engine queries the same HealthCyberMap resource metadata base. Explicit concepts in resource metadata map onto a brokering domain ontology (ICD-9-CM) allowing the search engine to infer implicit meanings (synonyms and semantic relationships) not directly mentioned in either the resource or its metadata. Similarly, user queries would map to the same ontology allowing the search engine to infer the implicit semantics of user queries and use them to optimise retrieval. A formative evaluation study of HealthCyberMap pilot service using an online user evaluation questionnaire, in addition to analysis of HealthCyberMap server transaction log, has been conducted during the period from 18 April 2002 to 1 June 2002 with very encouraging results. This two-method evaluation approach was guided by methodologies described in NIH Web Site Evaluation and Performance Measures Toolkit among other resources. Many exciting future possibilities have been also investigated by the author, including the further development of HealthCyberMap as a customisable, location-based medical/ health information service