1,674 research outputs found
Identifying communities of practice: analysing ontologies as networks to support community recognition
No full textCommunities of practice are seen as increasingly important for creating, sharing and applying organisational knowledge. Yet their informal nature makes them difficult to identify and manage. In this paper we set out ONTOCOPI, a system that applies ontology-based network analysis techniques to target the problem of identifying such communities
Also By The Same Author: AKTiveAuthor, a Citation Graph Approach to Name Disambiguation
No full textThe desire for definitive data and the semantic web drive for inference over heterogeneous data sources requires co-reference resolution to be performed on those data. In particular, name disambiguation is required to allow accurate publication lists, citation counts and impact measures to be determined. This paper describes a graph-based approach to author disambiguation on large-scale citation networks. Using self-citation, co-authorship and document source analyses, AKTiveAuthor clusters papers, achieving precision of 0.997 and recall of 0.818 over a test group of eight surname clusters
Manure Application Standards and EQIP Payments: The Distribution of Economic and Environmental Costs and Benefits across US Hog Farms
No full textImplementation of new CAFO regulations and EQIP payments could have important implications for the structure of the hog sector. This study uses a farm-level positive mathematical programming model to estimate the distribution of the economic and environmental effects of these new policies across regional and scale typologies.Environmental Economics and Policy,
Combustion and Society: A Fire-Centred History of Energy Use
No full textFire is a force that links everyday human activities to some of the most powerful energetic movements of the Earth. Drawing together the energy-centred social theory of Georges Bataille, the fire-centred environmental history of Stephen Pyne, and the work of a number of ‘pyrotechnology’ scholars, the paper proposes that the generalized study of combustion is a key to contextualizing human energetic practices within a broader ‘economy’ of terrestrial and cosmic energy flows. We examine the relatively recent turn towards fossil-fuelled ‘internal combustion’ in the light of a much longer human history of ‘broadcast’ burning of vegetation and of artisanal pyrotechnologies – the use of heat to transform diverse materials. A combustion-centred analysis, it is argued, brings human collective life into closer contact with the geochemical and geologic conditions of earthly existence, while also pointing to the significance of explorative, experimental and even playful dispositions towards energy and matter. © 2014, SAGE Publications. All rights reserved
Open data and charities
No full textOpen data involves a paradigm shift in the way organisations manage their information and data: moving from a default of charities keeping data resources locked up in underused internal systems, to building a shared ‘Web of Data’. The emergence of the open data movement has supported powerful new models of creativity, innovation and public engagement.Although most of the recent stories of progress and success in the open data field come from government and research where open data is more established, this report sets out to explain the ways in which open data is increasingly coming to play a role in the charitable sector. Existing open government data can be used by charities to add value to their work, to target services better, to improve advocacy and fundraising, and to support knowledge sharing and collaboration between different charities and agencies. Crowdsourcing of open data also offers a new way for charities to gather intelligence, and a wide range of freely available online tools can support charities to analyse open data resources. Realising the potential of open data will require charities to meet a number of technical and organisational challenges. Indeed many charities will need to address key issues relating to open data, whether they choose to pursue benefits from open data or not (as regulatory, funding and performance indication is published online by researchers, by government and by others in the sector).This report reviews open data as it relates to the charitable sector, drawing on long experience of developing open data in research and government, as well as early work exploring open data with charities and third-sector organisations. It defines open data, describes the background context of a knowledge economy, and outlines key opportunities and challenges of open data in the charity sector.On the basis of this overview and analysis of the field, the report sets out in more detail a number of options for the further development of open data practices in the charitable sector, via five recommendations derived from the analysis
DOES CONTRACTING RAISE FARM PRODUCTIVITY? THE IMPACT OF PRODUCTION CONTRACTS ON HOG FARM PERFORMANCE
No full textThe costs and benefits of policies designed to regulate the use of production contracts will depend in part on the impact of these contracts on farm productivity. In this paper we measure the impact of contracting on 1) partial and total factor productivity and 2) the production technology for 479 US hog operations. A sample selection model accounts for the fact that unobservable variables may be correlated with both the decision to contract and farm productivity. Results also identify determinants of farmers' decisions to contract and factors influencing farm productivity.Livestock Production/Industries, Productivity Analysis,
The Writer Walking the Dog: Creative Writing Practice and Everyday Life
No full textCreative writing happens in and alongside the writer’s everyday life, but little attention has been paid to the relationship between the two and the contribution made by everyday activities in enabling and shaping creative practice. The work of the anthropologist Tim Ingold supports the argument that creative writing research must consider the bodily lived experience of the writer in order fully to understand and develop creative practice. Dog-walking is one activity which shapes my own creative practice, both by its influence on my social and cultural identity and by providing a time and space for specific acts instrumental to the writing process to occur. The complex socio-cultural context of rural dog-walking may be examined both through critical reflection and creative work. The use of dog-walking for reflection and unconscious creative thought is considered in relation to Romantic models of writing and walking through landscape. While dog-walking is a specific activity with its own peculiarities, the study provides a case study for creative writers to use in developing their own practice in relation to other everyday activities from running and swimming to shopping, gardening and washing up
Semiometrics: Applying Ontologies across Large-Scale Digital Libraries
No full textAs large-scale digital libraries become more available and complete, not to mention more numerous, it is clear there is a need for services that can draw together and perform inference calculations on the metadata produced. However, the traditional Relational Database Management System (RDBMS) model, while efficiently constructed and optimised for many business structures, does not necessarily cope well with issues of concurrent data updates and retrieval at the scale of hundreds of thousands of papers. At the same time the growth of RDF and the increasing interest in Semantic Web technologies perhaps begins to present a viable alternative at a scalable, practical level. This paper considers a specific application of large-scale metadata analysis and conducts scalability tests using real-world data. It concludes that RDF technologies are both a scalable and performance-realistic alternative to traditional RDBMS approaches. It also shows that for relationship-based queries on large-scale metadata stores, RDF technologies can significantly out-perform traditional RDBMS approaches by allowing both retrieval and updating of data in a timely manner
Advanced Introduction to International Conflict and Security Law
No full textThis updated and revised second edition of Advanced Introduction to International Conflict and Security Law provides a concise and insightful guide to the key principles of international law governing peacetime security, arms control, the use of force, armed conflict and post-conflict situations. Nigel D. White explores the complex legal regimes that have been created to control levels of armaments, to limit the occasions when governments can use military force, to mitigate the conduct of warfare and to build peace
NONPECUNIARY BENEFITS TO FARMING AND DECOUPLED PAYMENTS
No full textThe first part of this paper presents a simple labor supply and production model wherein farmers with diminishing marginal utility of income derive nonpecuniary benefits from farming. We use the model to show how lump-sum or decoupled government payments could have positive and substantial effects on the supply of agricultural products. The result is simple and intuitive: payments allow those who enjoy farming to continue farming while maintaining a reasonably high living standard. Without payments, a lower living standard leads to higher marginal utility of income, making higher off-farm wages more desirable than lower on-farm wages plus non-pecuniary benefits from farming. Farmers respond to a reduction in payments by shifting their labor off-farm or exiting farming. This effect on labor supply and production is potentially much larger than effects predicted by earlier theoretical models that rely on utility with declining absolute risk aversion. The second part of this paper estimates the hourly nonpecuniary benefits to farming, for farms where the operator or spouse works off-farm, by comparing returns to household labor on-farm and off-farm. Results indicate substantial nonpecuniary benefits to farming. The empirical findings support a necessary (though not sufficient) condition for lump-sum payments having a substantial influence on production via an income effect.Decoupled payments, government payments, nonpecuniary benefits, labor supply, trade, Agricultural and Food Policy,
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