244,592 research outputs found

    Identification and Extraction of Binary, Ternary, Transitive associations and Frequent Patterns from Text Documents in an Interactive Way

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    poster abstractAs the amount of electronically accessible textual material has been growing exponentially, Text mining is a new and exciting research area that tries to solve the information overload problem. It is a promising and automated approach for extracting knowledge from unstructured textual documents. The purpose of this research in text mining area is to find compact but high quality associations from Neuroscience related text documents. Here, we try to find the relationships (binary, ternary and transitive) between the terms related to some of the common disorders in neuroscience like Alcoholism and Schizophrenia from a database PubMed, using Vector Space Model (VSM) and the Artificial Neural Network (ANN). We also use Graphviz to visualize these associations. This research reveals many stronger and weaker associations between the different terms in different comorbidities, which are otherwise difficult to understand by reading articles or journals manually. Once the model is developed, it can be generalized to different terms and can be used to study different combinations of terms and comorbidities. As response time of these models is very fast, it will greatly contribute towards speeding up medical research. In such light, extracting associations between keywords could provide very interesting insights into their roles in various diseases and other biological processes. We also try to prove that instead of mining all frequent patterns, all of which may not be interesting to user, interactive method to mine only desired and interesting patterns is far better approach in terms of utilization of resources. We find the compact but high-quality frequent patterns in an interactive way using MCMC sampling method. In interactive patterns mining, a user gives feedback on whether a pattern is interesting or not. The discovery of interesting Associations has application in many fields. Few of them are business decision-making processes, web usage mining, intrusion detection and bioinformatics

    Binding time: Harold Innis and the balance of new media

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    Much has been made of the impacts of digital media on the experience of space: new modes of perception and action at a distance: accelerating globalisation; shifting boundaries between work and home life; and so on. It is less common to read about the impacts of digital media on the experience of time. Yet, the digitisation of cultural practices and artefacts has significant implications for structuring our relationships with both the future and the past. In the theoretical traditions concerned with technology and time, the work of Harold Innis, a Canadian economist and communications theorist, offers an approach to understanding the social significance of all kinds of media. He analysed how different media relate to space and time: space-binding media extend influence and meanings over distances, helping to build empires and develop cohesion across space; while time-binding media influence cultural patterns in duration. For Innis, civilisations can be measured by their balance between managing time and controlling space. If this remains the case today, how has the computer changed this balance in our own culture? This paper examines the extent to which Innis’s concepts about media still apply today

    Web 2.0 technologies for learning: the current landscape – opportunities, challenges and tensions

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    This is the first report from research commissioned by Becta into Web 2.0 technologies for learning at Key Stages 3 and 4. This report describes findings from an additional literature review of the then current landscape concerning learner use of Web 2.0 technologies and the implications for teachers, schools, local authorities and policy makers

    Preserving Social Media: the Problem of Access

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    As the applications and services made possible through Web 2.0 continue to proliferate and influence the way individuals exchange information, the landscape of social science research, as well as research in the humanities and the arts, has the potential to change dramatically and to be enriched by a wealth of new, user-generated data. In response to this phenomenon, the UK Data Service have commissioned the Digital Preservation Coalition to undertake a 12-month study into the preservation of social media as part of the ‘Big Data Network’ programme funded by the Economic and Social Research Council (ESRC). The larger study focuses on the potential uses and accompanying challenges of data generated by social networking applications. This paper, ‘Preserving Social Media: the Problem of Access’, comprises an excerpt of that longer study, allowing the authors a space to explore in closer detail the issue of making social media archives accessible to researchers and students now and in the future. To do this, the paper addresses use cases that demonstrate the potential value of social media to academic social science. Furthermore, it examines how researchers and collecting institutions acquire and preserve social media data within a context of curatorial and legislative restrictions that may prove an even greater obstacle to access than any technical restrictions. Based on analysis of these obstacles, it will examine existing methods of curating and preserving social media archives, and second, make some recommendations for how collecting institutions might approach the long-term preservation of social media in a way that protects the individuals represented in the data and complies with the conditions of third party platforms. With the understanding that web-based communication technologies will continue to evolve, this paper will focus on the overarching properties of social media, analysing and comparing current methods of curation and preservation that provide sustainable solutions

    Web 2.0 technologies for learning: the current landscape – opportunities, challenges and tensions: supplementary materials

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    These supplementary materials accompany the report ‘Web 2.0 technologies for learning: the current landscape – opportunities, challenges and tensions’, which is the first report from research commissioned by Becta into Web 2.0 technologies for learning at Key Stages 3 and 4. This report describes findings from the commissioned literature review of the then current landscape concerning learner use of Web 2.0 technologies and the implications for teachers, schools, local authorities and policy makers

    16th century Persian tiles in dialogue with 21st century digital tiles in the Sadrian universe

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    This article brings together tiles of 16th century Persian architecture and 21st century digital tiles of moving image to explore new potentials beyond the perceived image. As minimal parts of a bigger image, they both appear still and motionless. However, Persian Islamic philosopher, Mulla Sadrā Shirazi’s (1571-1640) theory of ‘substantial motion’ (al-harakat al-jawhariyya) argues that, at the level of substance, an invisible internal motion and change takes place. Due to this internal change, aspects of the Divine Being constantly manifest in the existence of entities. Sadrā’s unique view on existence suggests that all living and non-living entities, as manifestations of the Divine Being, have certain experiences of the universe. To think that an image, a tile, or a pixel, as an existing entity, has certain experiences can unfold new avenues for creative thinking/making in digital moving image that can reveal what is hidden from human perception

    Challenges in Developing Applications for Aging Populations

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    Elderly individuals can greatly benefit from the use of computer applications, which can assist in monitoring health conditions, staying in contact with friends and family, and even learning new things. However, developing accessible applications for an elderly user can be a daunting task for developers. Since the advent of the personal computer, the benefits and challenges of developing applications for older adults have been a hot topic of discussion. In this chapter, the authors discuss the various challenges developers who wish to create applications for the elderly computer user face, including age-related impairments, generational differences in computer use, and the hardware constraints mobile devices pose for application developers. Although these challenges are concerning, each can be overcome after being properly identified
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