Towards objective measures of algorithm performance across instance space

This paper tackles the difficult but important task of objective algorithm performance assessment for optimization. Rather than reporting average performance of algorithms across a set of chosen instances, which may bias conclusions, we propose a methodology to enable the strengths and weaknesses of different optimization algorithms to be compared across a broader instance space. The results reported in a recent Computers and Operations Research paper comparing the performance of graph coloring heuristics are revisited with this new methodology to demonstrate (i) how pockets of the instance space can be found where algorithm performance varies significantly from the average performance of an algorithm; (ii) how the properties of the instances can be used to predict algorithm performance on previously unseen instances with high accuracy; and (iii) how the relative strengths and weaknesses of each algorithm can be visualized and measured objectively

Evaluating events data for cultural analytics : a case study on the economic and social effects of Covid-19 on the Edinburgh Festivals

Funding: This work was supported by the Arts and Humanities Research Council under Grant AH/W007533/1.The effects of the Covid-19 pandemic on the Creative and Cultural Industries can be difficult to quantify. Metadata about events (theatre productions, music and comedy gigs, sporting fixtures, days out, and more) are an untapped resource for cultural analytics that can be used as a proxy metric for financial and social impact. This article uses a sample of large-scale cultural events data from UK industry providers Data Thistle to ask: how can events data at scale be used to quantify the financial and social effects of the Covid-19 pandemic on the cultural events sector in a particular region? We analysed the changes in event provision in Edinburgh in August 2018, 2019, 2020 and 2021, revealing an estimated 97.3% fall in ticketing revenue between 2019 and 2020. Additionally, the effects that pandemic restrictions had on different categories of event reveal a disparity in how different audience sectors were affected, with ‘Visual Art’ and ‘Days Out’ showing most resilience and ‘Theatre’, ‘Comedy’ and ‘LGBT’ events being most reduced. Our findings indicate that events data are a rich but heterogenous source of information regarding the cultural and creative economy, which is not yet routinely used by researchers.Peer reviewe

Cultural analytics in the UK:Events data potential for the creative and cultural industries

This article investigates the potential for novel research utilising data generated by the Creative and Cultural Industries (CCI) in the UK, focussing on the long tail of metadata associated with the UK’s rich cultural events landscape. We conducted semi-structured interviews with 29 researchers and related domain experts to ascertain: (1) How cultural data is valued by academic, social and industry research in the UK and how this relates to how culture is valued; (2) How large-scale cultural events data fits into the existing landscape of cultural data; (3) How UK research can make better use of cultural events data (skills and infrastructure); (4) The benefits and pitfalls of an evidence-based approach to cultural policy; and (5) The repercussions of the Covid-19 pandemic on how data-led work is positioned within the CCI. We advocate for the potential value of cultural events data to academic research, policy and industry, and also for a humanities-led approach to counter the trends towards data-driven understandings of and appraisal of culture. We suggest that a centralised cultural events data service for use in research, industry and policy is one way of supporting this

The definition of a community paramedic: An international consensus

Community paramedicine is a globally evolving model of care where paramedics provide community-based, preventative and primary healthcare services. With increased global interest and adaptation of the community paramedicine model, there is a lack of a clear definition of the role of a community paramedic. This study sought to come to an international consensus on the definition of a community paramedic. A four-phase Delphi methodology was utilised to achieve a global consensus on the definition of a community paramedic. A systematic approach to expert identification was performed and reported in line with the Conducting and REporting of DElphi Studies standard. A total of 94 community paramedicine experts were identified and 76 experts consented to involvement in this Delphi. Response rate ranged from 81.6% (Phase 1) to 63.1% (Phase 2). Participants expressed the importance of community paramedic definition having components attributed to primary health care, health promotion, chronic disease management and advanced clinical assessment. Participants expressed that these are essential components of the community paramedic skill set, which distinguishes the role from other frontline paramedics. A final consensus with 91% agreement on the definition of a community paramedic was achieved. The four-phase Delphi achieved consensus on the definition of a community paramedic as follows: A community paramedic provides person-centred care in a diverse range of settings that address the needs of the community. Their practice may include the provision of primary health care, health promotion, disease management, clinical assessment and needs-based interventions. They should be integrated with interdisciplinary healthcare teams which aim to improve patient outcomes through education, advocacy and health system navigation. The adoption of the global consensus on the definition of a community paramedic will enhance efforts to promote the value of this specialist role, enabling a better understanding of how a community paramedic contributes to the wider healthcare system

Marxism, racism and the construction of ‘race’ as a social and political relation: an interview with Professor Robert Miles

Robert Miles has made a significant contribution to the field of racism and ethnic studies. In his early work, Miles drew upon structuralist Marxist theorizations of capitalism to offer a historically informed analysis of racism and migrant labour (Miles 1982). This perspective placed political economy at the centre of the study of racism. In addition, Miles' critical discussions with other influential contemporaries such as Paul Gilroy and Stuart Hall (Centre for Contemporary Cultural Studies (CCCS) 1982) raised crucial issues concerning the construction of ‘race’ as a social and political relation in Britain (Back and Solomos 2000). However, Miles became most renowned for his critique of the ‘race relations’ paradigm and his insistence that sociologists employ the concept of ‘racialization’ rather than ‘race’ (Miles 1982, 1989, 1993). Overall, Miles' work was rich both in its theoretical clarity and historical depth, and his contributions warrant critical analysis today. The following interview was conducted in December 2009

Developing the Effectiveness of Applied Sport Psychology Service Delivery: A Reflective Practice Intervention

Little empirical evidence exists to corroborate the proposed benefits that reflective practice may have for service delivery effectiveness in Applied Sport Psychology (ASP). To systematically address this gap, we collected data over a five-year period via a staggered, single-subject multiple-baseline intervention that aimed to: (a) investigate the effectiveness of a training program designed to enhance practitioners’ abilities to engage in higher levels of reflection; and (b) explore whether developments in level of reflection influenced practitioner effectiveness. Eight trainee and four professionally qualified, UK based practitioners participated in an individualized 14-week study, which contained a two week intervention and a two month post-study retention assessment. All participants demonstrated immediate improvements in the level they were able to reflect at, as well as augmented reflective learning following the intervention. Measures of effective practice (e.g., client feedback, self-assessments) also demonstrated improvements post-intervention. In-depth social validation procedures substantiated these findings, with participants reporting that through more critical levels of reflection they experienced enhanced self-awareness, approaches to meeting client needs, professional judgement and decision making, and a range of other characteristics associated with effective consultants. Our findings offer novel support for the links between reflective practice and service delivery effectiveness, as well as a better understanding of the mechanisms through which such adaptations occur. This study makes a significant contribution by providing an in-depth, longitudinal insight into the value of focusing practitioner training on reflective practice as a meta-cognitive strategy to enhance ASP practice

Malaysia Airlines flight MH370 search data reveal geomorphology and seafloor processes in the remote southeast Indian Ocean

© The Author(s), 2017. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Marine Geology 395 (2018): 301-319, doi:10.1016/j.margeo.2017.10.014.A high-resolution multibeam echosounder (MBES) dataset covering over 279,000 km2 was acquired in the southeastern Indian Ocean to assist the search for Malaysia Airlines Flight 370 (MH370) that disappeared on 8 March 2014. The data provided an essential geospatial framework for the search and is the first large-scale coverage of MBES data in this region. Here we report on geomorphic analyses of the new MBES data, including a comparison with the Global Seafloor Geomorphic Features Map (GSFM) that is based on coarser resolution satellite altimetry data, and the insights the new data provide into geological processes that have formed and are currently shaping this remote deepsea area. Our comparison between the new MBES bathymetric model and the latest global topographic/bathymetric model (SRTM15_plus) reveals that 62% of the satellite-derived data points for the study area are comparable with MBES measurements within the estimated vertical uncertainty of the SRTM15_plus model (± 100 m). However, > 38% of the SRTM15_plus depth estimates disagree with the MBES data by > 100 m, in places by up to 1900 m. The new MBES data show that abyssal plains and basins in the study area are significantly more rugged than their representation in the GSFM, with a 20% increase in the extent of hills and mountains. The new model also reveals four times more seamounts than presented in the GSFM, suggesting more of these features than previously estimated for the broader region. This is important considering the ecological significance of high-relief structures on the seabed, such as hosting high levels of biodiversity. Analyses of the new data also enabled sea knolls, fans, valleys, canyons, troughs, and holes to be identified, doubling the number of discrete features mapped. Importantly, mapping the study area using MBES data improves our understanding of the geological evolution of the region and reveals a range of modern sedimentary processes. For example, a large series of ridges extending over approximately 20% of the mapped area, in places capped by sea knolls, highlight the preserved seafloor spreading fabric and provide valuable insights into Southeast Indian Ridge seafloor spreading processes, especially volcanism. Rifting is also recorded along the Broken Ridge – Diamantina Escarpment, with rift blocks and well-bedded sedimentary bedrock outcrops discernible down to 2400 m water depth. Modern ocean floor sedimentary processes are documented by sediment mass transport features, especially along the northern margin of Broken Ridge, and in pockmarks (the finest-scale features mapped), which are numerous south of Diamantina Trench and appear to record gas and/or fluid discharge from underlying marine sediments. The new MBES data highlight the complexity of the search area and serve to demonstrate how little we know about the vast areas of the ocean that have not been mapped with MBES. The availability of high-resolution and accurate maps of the ocean floor can clearly provide new insights into the Earth's geological evolution, modern ocean floor processes, and the location of sites that are likely to have relatively high biodiversity