Mostrando recursos 1 - 20 de 347

  1. Deep reinforcement learning for conversational robots playing games

    Cuayahuitl, Heriberto
    Deep reinforcement learning for interactive multimodal robots is attractive for endowing machines with trainable skill acquisition. But this form of learning still represents several challenges. The challenge that we focus in this paper is effective policy learning. To address that, in this paper we compare the Deep Q-Networks (DQN) method against a variant that aims for stronger decisions than the original method by avoiding decisions with the lowest negative rewards. We evaluated our baseline and proposed algorithms in agents playing the game of Noughts and Crosses with two grid sizes (3x3 and 5x5). Experimental results show evidence that our proposed...

  2. Testimonio and torture in the North of Ireland

    White, Lisa
    Drawing upon the language of ‘testimonio’ which has emerged from human rights activism in Latin America, the paper explores the narrative experiences of former detainees who ‘went public’ with accounts of state brutality and torture relating to the conflict in the North of Ireland. It takes a multidisciplinary approach to examine the extent to which narratives of state violence can be understood as a form of resistance. Drawing directly from the findings of a series of interviews with Republican former detainees, the paper also comments upon the complicated feelings of ‘ownership’ of those whose personal experiences of state violence have...

  3. Raising levels of student satisfaction with assessment and feedback: reflecting on the staff experience of an ambitious change management programme

    Benton, Helen Marie; Everett, Sally; Hunt, Abigail
    An exploration of the impact of an ambitious programme of changes in assessment and feedback in the Business School. This research explored the change in student satisfaction, but also the experience of academic and administrative staff during the time of change.

  4. A multiplicative human steering control model

    Martinez-Garcia, Miguel; Gordon, Timothy
    A non-linear, yet simple, multiplicative human-control model is developed by studying the statistical properties of human subjects’ motor response to a visual input; statistical analysis of the magnitude of the steering angle, from subjects performing a tracking task with a steering wheel, shows that the data is consistent with a log-normal distribution. Thus the possibility of modelling human-control as a multiplicative process, that replicates the statistical properties found in the human-operator is considered. The proposed multiplicative controller is contrasted with real data and with the Crossover Model. This research has potential applications in a wide range of fields, from human...

  5. Keeping it in the family: exploring tribal entrepreneurial behaviour in Nigeria

    Igwe, P.; Newbery, R.; White, G. T.; Nihar, A.
    An emergent theme in the field of entrepreneurship research focuses on understanding how institutions, ethnicity and culture affect entrepreneurial behaviour. Despite the many scholarly work in this field, very little is known about the links between family, institutions and entrepreneurial behaviour in the African context. By interviewing 50 entrepreneurs and community leaders of the Igbo tribe in Nigeria, this paper applies an induction method via the lens of effectuation theory (Sarasvathy, 2001) as a process by which entrepreneurs manage resource and stakeholders to create opportunities. This paper examines the attributes of the Igbos in relation to their entrepreneurial behaviour. In...

  6. Falls at home in the ageing population: the role of allied health professionals in preventative public health

    Christopher, Sarah
    Falls in the home, particularly repeat fallers, result in ambulances being called. A high number of these patients are taken to Emergency Departments by the attending paramedics

  7. Romancing the earth

    Whelan, Deborah
    In a post-Apartheid South Africa, the perpetuation and preservation of any architectural history that existed prior to 1994 can be tricky, let alone those buildings constructed from earth. Emotional and political baggage, whether real or imagined, exists. This, together within a larger social and organizational dis-functionalism, creates challenges that have to be met and engaged with at every level. From a broader perspective, the future of built heritage in most developing countries is inextricably tied to development, or creating the perception of development. In the case study of Georgetown, Edendale, a project with which I have been involved with for...

  8. An unlikely association: James Allison and Langalibalele ka Mthimkhulu

    Whelan, Deborah
    James Allison was a controversial Wesleyan minister who established a number of Mission stations in the colony of Natal in the mid-nineteenth century. He is noted for his expulsion from the Wesleyan Ministry and was ultimately ejected from the Edendale Mission at Georgetown. A milliner by trade, he had crossed the subcontinent, dragging converts with him as he went. Part of his journey to ultimately settle in Natal Colony took him through the upper Mzinyathi region, around the present day town of Utrecht. Here he stayed for a while with Langalibalele, later to achieve notoriety in the Colony for his...

  9. Sites of dangerousness: the visibility and invisibility of black victims of police violence

    White, Lisa
    The paper explores police violence against ‘Black bodies’ and argues that such bodies are rendered both hyper-visible and invisible in interactions with the formal criminal justice system. It shows how ‘Black bodies’ are hyper-visible and subjected to high levels of over-policing, surveillance and control, yet those same bodies then become invisible through repeated failures to successfully prosecute the perpetrators of state violence, despite the existence of camera-phone and closed-circuit television footage which repeatedly shows state brutality. The paper illustrates how ‘Black bodies’ are continually marked out as risky, dangerous bodies, and comments on the role played by this racist gaze...

  10. Sustainable development through heritage and education: the new Peterborough effect

    Hunt, Abigail; Kershaw, Alice
    This paper argues that engagement with heritage by educational organisations is an effective tool in transforming the lives of young people and developing sustainable futures for England's urban areas (UNESCO, 2011). ?The Peterborough Effect? was a slogan employed by the Peterborough Development Corporation in the 1970s and 1980s to promote one of the most successful New Town developments in post-war Britain and to encourage economic investment in the city from external businesses (Bendixson, 1988). Nearly 40 years later the Development Corporation has been superseded by Opportunity Peterborough, an urban regeneration company that recognises the role of heritage and education in...

  11. Re-thinking employee recognition: understanding employee experiences of recognition

    Smith, Charlotte
    Despite widespread acceptance of the importance of employee recognition for both individuals and organisations and evidence of its increasing use in organisations, employee recognition has received relatively little focused attention from academic researchers. Particularly lacking is research exploring the lived experience of employee recognition and the interpretations and meanings which individuals give to these experiences. Drawing on qualitative interviews conducted as part of my PhD research with 29 employees at a UK insurance company, this paper examines the ways employees interpret their experiences of recognition. The findings of this study indicate that employee recognition is a form of message sent by...

  12. Good and bad gifts: the communicative function of employee recognition

    Smith, Charlotte
    Purpose Through an interpretation of individuals’ accounts of their recognition experiences, this paper contributes to knowledge about employee recognition by offering insights into how individuals experience and understand recognition in the workplace and its possible social functions and implications. Design/methodology/approach In-depth interviews were conducted with individuals drawn from two research organisations, an insurance company and a local council, in order to understand how individuals experience and understand employee recognition within particular social and organisational contexts. To make sense of the co-constructed accounts produced in these interviews, an inductive, exploratory (thematic) approach to analysing the data has been taken which is consistent with the...

  13. A critical review of the safeguarding problem in construction procurement: unpicking the coherent current model

    Pasquire, Christine; Sarhan, Saad; King, Andrew
    The construction industry has, over a long period, been criticised for its short term 'hit-and-run' relationships which are focused on win-lose situations and poor performance. Despite the wide recognition of these problems the industry persistently resists the radical demanded of it. This paper attempts to investigate why this might be the case by reviewing prevailing safeguarding practices within the current commercial systems and structures through literature review and industry observation. Findings reveal that clients and decision makers often tend to safeguard their project-specific assets, against opportunism and exploitation, through the deployment of formal contractual arrangements and governance structures. These arrangements...

  14. Creating and sharing stories of work: from individual experience to collective reflection

    Rydzik, Agnieszka
    This paper explores the preposition that individual stories when shared collectively can become powerful catalysts for learning, reflection and empowerment. Individuals ‘use story to make sense of their lives’ (Boland & Griffin, 2015: 90) and ‘to make sense of the world that surrounds them, and their place in it’ (Forster et al., 1999). This paper argues that whilst individually stories are valuable and can foster reflection, it is when shared collectively that new understandings can emerge. The interest of this paper lies in the often untold stories of work, specifically in students working part-time in tourism and hospitality. Students increasingly work...

  15. The role of collective trust and gender in fostering collaboration within women-only networks in a niche industry

    Rydzik, Agnieszka
    Drawing from a study of an informal network of women brewers, this article explores the multi-faceted role trust and single-gender membership play in strengthening collaboration and forging relationships within contemporary women-only entrepreneurial networks. It argues that trust is not only integral but also a facet without which such networks would not work effectively. It is also argued that for trust to emerge and maintain, creation of a safe environment and trust building activities - both online and face-to-face - is necessary. While studies have been conducted on trust in networks, these are largely quantitative, gender-blind and based within large organisations. Providing...

  16. E-mail advertising: a Middle Eastern perspective and the moderating role of gender

    Ali, Mahmoud; Grigoriou, Nicholas; Hack-polay, Dieu
    This study assesses Middle Eastern consumers’ beliefs regarding attitude and behavioural responses toward e-mail advertising. To date, little is known about Middle Eastern consumers’ attitudes and behavioural responses towards email advertising. Our findings show that gender moderates the relationship between beliefs and attitudes, and responses to email advertising. A cross-sectional survey was conducted among 1200 respondents and yielded 321 valid responses. The hypothesized model was tested using structural equation modelling. Our findings show that both informativeness and entertainment beliefs positively predicted Middle Eastern consumers’ attitudes toward e-mail advertising. Additionally, attitude was found to fully mediate the relationship between beliefs regarding...

  17. The playful experiences (PLEX) framework as a guide for expert evaluation

    Lucero, Andrés; Holopainen, Jussi; Ollila, Elina; Suomela, Riku; Karapanos, Evangelos
    The Playful Experiences (PLEX) framework is a categorization of playful experiences based on previous theoretical work on pleasurable experiences, game experiences, emotions, elements of play, and reasons why people play. While the framework has been successfully employed in design-related activities, its potential as an evaluation tool has not yet been studied. In this paper, we apply the PLEX framework in the evaluation of two game prototypes that explored novel physical interactions between mobile devices using Near-Field Communication, by means of three separate studies. Our results suggest that the PLEX framework provides anchor points for evaluators to reflect during heuristic evaluations....

  18. Social and privacy aspects of a system for collaborative public expression

    Holopainen, Jussi; Lucero, Andrés; Saarenpää, Hannamari; Nummenmaa, Timo; El Ali, Abdallah; Jokela, Tero
    In this paper, we are concerned with how a real-world social situation shapes the interaction with a novel technology that combines collocated mobile phone and public display use for groups of people. We present a user study of a system that allows collaborative creation and sharing of comic strips on public displays in a social setting such as a pub or café. The system utilizes mobile phones and public displays for shared collaborative expression between collocated users. A user study spanning three sessions was conducted in real-world settings: one during the social event following a seminar on games research and...

  19. Applying the PLEX framework in designing for playfulness

    Arrasvuori, Juha; Boberg, Marion; Holopainen, Jussi; Korhonen, Hannu; Lucero, Andrés; Montola, Markus
    In addition to functionality and usability, interactive products are increasingly expected to provide pleasurable experiences to their users. Playfulness is a part of these experiences. However, playfulness can manifest in many different ways as humans are inherently playful by nature. This poses challenges for designing for playfulness. To tackle this broad field, we have developed the Playful Experiences (PLEX) framework. The two-fold purpose of the PLEX framework is to be a conceptual tool for understanding the playful aspects of user experience (UX), and be a practical tool for designing for such experiences through established user-centered design (UCD) methods. In this...

  20. Pass-them-around: collaborative use of mobile phones for photo sharing

    Lucero, Andrés; Holopainen, Jussi; Jokela, Tero
    In this paper we explore shared collocated interactions with mobile phones. We introduce a phone-based application that allows a small group of collocated people to share photos using the metaphor of passing paper photos around. The prototype encourages people to share their devices and use them interchangeably while discussing photos face-to-face. The prototype supports ad-hoc photo sharing in different contexts by taking into account the spatial arrangement of users around a table, measured with sensors embedded in their mobile phones. Our evaluations show that people are willing to share and connect their mobile phones to engage in collaborative interactions. Participants...

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