196,239 research outputs found

    The simplicity project: easing the burden of using complex and heterogeneous ICT devices and services

    Get PDF
    As of today, to exploit the variety of different "services", users need to configure each of their devices by using different procedures and need to explicitly select among heterogeneous access technologies and protocols. In addition to that, users are authenticated and charged by different means. The lack of implicit human computer interaction, context-awareness and standardisation places an enormous burden of complexity on the shoulders of the final users. The IST-Simplicity project aims at leveraging such problems by: i) automatically creating and customizing a user communication space; ii) adapting services to user terminal characteristics and to users preferences; iii) orchestrating network capabilities. The aim of this paper is to present the technical framework of the IST-Simplicity project. This paper is a thorough analysis and qualitative evaluation of the different technologies, standards and works presented in the literature related to the Simplicity system to be developed

    On content-based recommendation and user privacy in social-tagging systems

    Get PDF
    Recommendation systems and content filtering approaches based on annotations and ratings, essentially rely on users expressing their preferences and interests through their actions, in order to provide personalised content. This activity, in which users engage collectively has been named social tagging, and it is one of the most popular in which users engage online, and although it has opened new possibilities for application interoperability on the semantic web, it is also posing new privacy threats. It, in fact, consists of describing online or offline resources by using free-text labels (i.e. tags), therefore exposing the user profile and activity to privacy attacks. Users, as a result, may wish to adopt a privacy-enhancing strategy in order not to reveal their interests completely. Tag forgery is a privacy enhancing technology consisting of generating tags for categories or resources that do not reflect the user's actual preferences. By modifying their profile, tag forgery may have a negative impact on the quality of the recommendation system, thus protecting user privacy to a certain extent but at the expenses of utility loss. The impact of tag forgery on content-based recommendation is, therefore, investigated in a real-world application scenario where different forgery strategies are evaluated, and the consequent loss in utility is measured and compared.Peer ReviewedPostprint (author’s final draft

    Addressing the cyber safety challenge: from risk to resilience

    Get PDF
    Addressing the cyber safety challenge: from risk to resilience describes the cyber safety issues emerging from a range of technology trends, how different populations are using technologies and the risks they face, and how we can effectively respond to each group’s unique cyber safety needs. Written by the University of Western Sydney for Telstra Corporation Ltd, the report advocates for continuing to move cyber safety from a ‘risk and protection’ framework to one that focuses on building digital resilience, as well as fostering trust and confidence in the online environment. To do this we need to: Address the needs of populations often neglected by current policies and programs – including adults, seniors, parents, and small to medium enterprises Continue to build the digital literacy skills of all populations, because digital literacy strongly influences users’ ability to engage safely online – this is best achieved by a hands-on learning approach Keep risk in perspective – the risks and benefits of digital participation go hand in hand Broaden the focus from awareness-raising to long-term behaviour change. As digital technologies become further integrated into the everyday lives of Australians, users are potentially exposed to greater risks. However, the risks and benefits of digital participation go hand in hand. The challenge, therefore, is to support users to minimise the risks without limiting their digital participation and their capacity to derive the full benefits of connectivity. If Australians are to benefit as either consumers or providers of online services and products in the e-commerce environment, consumer safety and trust need to be improved. Cyber safety needs to be considered against a transforming backdrop of technology trends, products and practices. While the rise of social media has tended to dominate recent debate and developments in cyber safety, particularly in relation to young people, a range of other trends is also shaping how users engage online, the risks they potentially face in the new media landscape, and the strategies used to address them. These trends include the rise of user generated content and content sharing platforms; the uptake of mobile technologies and, in particular, the adoption of smartphones; cloud computing; platform integration and single sign-on mechanisms; and the rise of GPS and location based services

    Strengthening Pharmacovigilance System to Capture Safety Data from HIV Clients on ART in Tanzania: Identification of Gaps in Safety Reporting System

    Get PDF
    In Tanzania, pharmacovigilance system is implemented by Tanzania Food and Drugs Authority (TFDA) that monitors drug use countrywide. TFDA is the main national custodian for recording, analyzing and disseminating safety information that is generated through conventional health care facilities. Since the introduction of Care and Treatment Centre (CTC) in the health care system, little has been achieved on translating safety information from these facilities to the TFDA. Since the inception of national pharmacovigilance framework in 2003 there has been no systematic operational research to map the gaps in the existing pharmacovigilance system. Furthermore, it is not clear if there is adequate training and supervision. It is, therefore, important to strengthen antiretroviral therapy (ART) related adverse drug reactions (ADRs) reporting by mapping gaps in implementation of pharmacovigilance (PV) system. Information obtained will assist in addressing training needs to ensure effective reporting of ADRs through coordinated approach involving TFDA and National AIDS Control Program (NACP) in Tanzania. A cross-sectional study was conducted in four regions (Tanga, Singida, Dodoma and Mtwara) in two PV zones. Qualitative and quantitative data collection techniques with triangulation design were used. These included; desk document review of PV recording and reporting of drug safety information; in-depth interviews with various implementation stakeholders, exit interviews with patients, in-interviews with care takers and community based organizations (CBOs) involved in the provision of care and treatment of HIV/AIDS. A total of 801 respondents participated in the quantitative data component which included; 545 exit interviews to CTC clients, 177 health service providers, 62 in-depth interviews to CTC in-charges and 17 regional and district pharmacists. Ownership of these CTCs included 83.9% government, 12.9% faith based organizations and 3.2% co-owned by the government and faith based organizations. High proportions (97.2%) of the CTC health care providers had wide knowledge on ART related ADRs. However, more than half (53.4%) of the CTC service providers had not attended any training on ART related ADRs. Among the service providers, majority (67.8%) mentioned there was no guideline in place for reporting ART related ADRs. Only, 32.1% of health care providers indicated to be aware of the tool used for collection of ART related ADRs events. Of those, 37.5% mentioned that the forms were mainly obtained from district or regional pharmacists. The ADR reports were submitted to district and regional pharmacists 48.3%, TFDA 7.0%, and NACP 7.0%. Of those who indicated to have filled and submitted ADR form, only 7.4% received feedback. The proportion of ART clients who provided information was significantly different between urban and rural in Dodoma region (p=0.002). There was variation in proportions of ART clients who had mentioned seen/heard of ART related ADR by regions and difference was significant between rural and urban for all regions except Tanga (p<0.05). Majority (47.9%) of the ART clients reported ART related ADRs to the health provider for duration ranging from 3-7 days. The qualitative results revealed that that most of the guidelines from TFDA were not known and unavailable according to most of the respondents at national level (NACP), regional, district, and at health facility level. It was surprising that one of the district pharmacists interviewed was unaware of existence of guidelines in place for ADR and PV for use in the districts. It was also found that Sometimes even when available at health facilities, there was inadequate knowledge on how to fill the ADR forms according to Key Informant at national level. Moreover, several health workers admitted that that they were not reporting ADR due to a lack of forms according to some CTC in-charges interviewed. This study has shown that despite the established PV system in Tanzania, the frequency of reporting of ART related ADRs to TFDA is low. This is due to inadequate training of health care providers on ADR reporting, shortage of staff, unavailability of TFDA ADR reporting forms and lack of regular supportive supervision. Based on these results therefore we recommend TFDA should ensure that ADR reporting forms as well as guidelines are adequately supplied and utilized at CTC level NACP should ensure sharing of safety information with TFDA and recommend dedicated focal person liable for documenting and reporting ART related ADRs recorded in CTC II patient file. Regular training, supportive supervision and feedback on ART related ADR reporting system for health care providers is needed. The financial support was provided by the Global Fund Round 8. The total budget for the project was Tsh. 69,993,000/-
    • 

    corecore