3,558 research outputs found
Ian G. Cook et Geoffrey Murray, China's Third Revolution. Tensions in the Transition to Post-Communism
No full textRocca Jean-Louis. Ian G. Cook et Geoffrey Murray, China's Third Revolution. Tensions in the Transition to Post-Communism. In: Perspectives chinoises, n°68, 2001. p. 69
Trading Time and Space in Catalytic Branching Programs
No full textAn m-catalytic branching program (Girard, Koucký, McKenzie 2015) is a set of m distinct branching programs for f which are permitted to share internal (i.e. non-source non-sink) nodes. While originally introduced as a non-uniform analogue to catalytic space, this also gives a natural notion of amortized non-uniform space complexity for f, namely the smallest value |G|/m for an m-catalytic branching program G for f (Potechin 2017).
Potechin (2017) showed that every function f has amortized size O(n), witnessed by an m-catalytic branching program where m = 2^(2ⁿ-1). We recreate this result by defining a catalytic algorithm for evaluating polynomials using a large amount of space but O(n) time. This allows us to balance this with previously known algorithms which are efficient with respect to space at the cost of time (Cook, Mertz 2020, 2021). We show that for any ε ≥ 2n^(-1), every function f has an m-catalytic branching program of size O_ε(mn), where m = 2^(2^(ε n)). We similarly recreate an improved result due to Robere and Zuiddam (2021), and show that for d ≤ n and ε ≥ 2d^(-1), the same result holds for m = 2^binom(n, ≤ ε d) as long as f is a degree-d polynomial over ₂. We also show that for certain classes of functions, m can be reduced to 2^(poly n) while still maintaining linear or quasi-linear amortized size.
In the other direction, we bound the necessary length, and by extension the amortized size, of any permutation branching program for an arbitrary function between 3n and 4n-4
The Sondheim Public Affairs Scholars Program w/ Dr. Laura Antkowiak & Jessica Cook
No full textOn this episode Dr. Anson speaks with Dr. Laura Antkowiak, Associate Professor in the UMBC Department of Political Science and the Director of the Sondheim Public Affairs Scholars Program at UMBC, as well as Jessica Reynolds Cook, Associate Director of the Sondheim Program. In their conversation they discuss the Sondheim program, its origins, its current work, and the fantastic students it serves.
Check out the following links for more information on UMBC, CS3, and our host:
The UMBC Center for the Social Sciences Scholarship
The University of Maryland, Baltimore County
Ian G. Anson, Ph.D.https://socialscience.umbc.edu/podcast/episode-38
Producing the NAPLAN machine: A schizoanalytic cartography
No full textEverything revolves around desiring-machines and the production of desire… Schizoanalysis merely asks what are the machinic, social and technical indices on a socius that open to desiring-machines (Deleuze & Guattari, 1983, pp. 380-381). Achievement tests like NAPLAN are fairly recent, yet common, education policy initiatives in much of the Western world. They intersect with, use and change pre-existing logics of education, teaching and learning. There has been much written about the form and function of these tests, the ‘stakes’ involved and the effects of their practice. This paper adopts a different “angle of vision” to ask what ‘opens’ education to these regimes of testing(Roy, 2008)? This paper builds on previous analyses of NAPLAN as a modulating machine, or a machine characterised by the increased intensity of connections and couplings. One affect can be “an existential disquiet” as “disciplinary subjects attempt to force coherence onto a disintegrating narrative of self”(Thompson & Cook, 2012, p. 576). Desire operates at all levels of the education assemblage, however our argument is that achievement testing manifests desire as ‘lack’; seen in the desire for improved results, the desire for increased control, the desire for freedom, the desire for acceptance to name a few. For Deleuze and Guattari desire is irreducible to lack, instead desire is productive. As a productive assemblage, education machines operationalise and produce through desire; “Desire is a machine, and the object of the desire is another machine connected to it”(Deleuze & Guattari, 1983, p. 26). This intersection is complexified by the strata at which they occur, the molar and molecular connections and flows they make possible. Our argument is that when attention is paid to the macro and micro connections, the machines built and disassembled as a result of high-stakes testing, a map is constructed that outlines possibilities, desires and blockages within the education assemblage. This schizoanalytic cartography suggests a new analysis of these ‘axioms’ of testing and accountability. It follows the flows and disruptions made possible as different or altered connections are made and as new machines are brought online. Thinking of education machinically requires recognising that “every machine functions as a break in the flow in relation to the machine to which it is connected, but at the same time is also a flow itself, or the production of flow, in relation to the machine connected to it”(Deleuze & Guattari, 1983, p. 37). Through its potential to map desire, desire-production and the production of desire within those assemblages that have come to dominate our understanding of what is possible, Deleuze and Guattari’s method of schizoanalysis provides a provocative lens for grappling with the question of what one can do, and what lines of flight are possible
Comparative Aging and Qualitative Theorizing
No full textThe principal aim of this argument is to analyse the swift expansion in the proportion of older people across the globe, and to highlight the main social and economic forces causing this through methodological challenges especially through the lens of qualitative methodology. We recognise the enormity of the task. Drawing from a range of qualitative research studies provides enriched meanings about aging identity that can be used to shed light on how aging is experienced in equal to how it has been defined in macro or populational terms. Balancing micro and macro levels of understanding is key to open up broader level of explaining what it means to be an older person in different cultures Whilst this is a noble aim, there is no doubt that the rapid increase in population aging across the globe is signalling the most astonishing populational changes in the history of humankind that qualitative levels of understanding are uniquely placed to balance the huge figures in describing complex demography in that qualitative methodology unravels the facts and instead reveals the narratives, meanings and identity formation of research subjects; whereas statistical research has pre-dominantly made its findings looking at people as research objects or as a ‘number’ (Gruber and Wise 2004). The balance is key but this paper explores the issue of comparative aging underpinned by what Powell and Cook (2001) call ‘qualitative theorising’ in making sense of statistical and experiential aging
Dual VP Classes
No full textWe consider the complexity class ACC^1 and related families of arithmetic circuits. We prove a variety of collapse results, showing several settings in which no loss of computational power results if fan-in of gates is severely restricted, as well as presenting a natural class of arithmetic circuits in which no expressive power is lost by severely restricting the algebraic degree of the circuits. These results tend to support a conjecture regarding the computational power of the complexity class VP over finite algebras, and they also highlight the significance of a class of arithmetic circuits that is in some sense dual to VP.Presented at the 40th International Symposium on Mathematical Foundations of Computer Science (MFCS '15).Published as a chapter in: Mathematical foundations of computer science 2015 : 40th International Symposium, MFCS 2015, Milan, Italy, August 24-28, 2015, Proceedings. Part II, as part of the series
Lecture notes in computer science 9235, edited by G.F. Italiano, G. Pighizzini, & D. Sannella (Berlin: Springer, 2015). LNCS 9235 forms part of the LNCS sublibrary Theoretical computer science and general issues.The final publication is available at http://dx.doi.org/10.1007/978-3-662-48054-0Peer reviewed.The later journal article version of this paper is available from the publisher at http://dx.doi.org/10.1007/s00037-016-0146-7 and at http://dx.doi.org/doi:10.7282/T3ZC8531 (Accepted Manuscript version)
Evidence based guidelines for vaccination practice
No full textVaccination programs have been so successful that concerns about sequelae of vaccine preventable disease have been replaced by concerns about the safety of vaccines. This context mandates the development and use of the best vaccines and the best vaccination practice (site and route of administration of vaccines). Evidence based medicine has been championed as a way of improving the quality of medical care. Assessment of vaccination guidelines from twelve countries, nine states/provinces and two counties reveals that recommendations for vaccination practice are largely based on expert opinion. In this thesis, clinical studies are presented on: The preferred route for administration of vaccines (intramuscular or subcutaneous). ; The needle length required for intramuscular injection.; The technique for intramuscular injection of vaccines.; The site for intramuscular injection of vaccines. These studies have resulted in the following publications in refereed journals: 1.Cook IF, Barr I, Hartel G, Pond D, Hampson AW. Reactogenicity and immunogenicity of an inactivated influenza vaccine administered by intramuscular or subcutaneous injection in elderly adults. Vaccine 2006; 24: 2395-402.; 2.Cook IF, Pond D, Hartel G. Comparative reactogenicity and immunogenicity of 23 valent pneumococcal vaccine administered by intramuscular or subcutaneous injection in elderly adults. Vaccine 2007; 25: 4767-74.; 3.Cook IF. Evidence based route of administration of vaccines. Human Vaccines 2008; 4: 67-73.; 4.Cook IF. Sexual dimorphism of humoral immunity with human vaccines. Vaccine 2008: 26: 3551-5.; 5.Cook IF, Murtagh J. Needle length required for intramuscular vaccination of infants and toddlers: an ultrasonographic study. Aust Fam Phys 2002; 3: 295-7.; 6.Cook IF, Murtagh J. Paediatric vaccination practice in a division of general practice. Aust Fam Phys 2001; 30: 1185-9.; 7.Cook IF, Murtagh J. Ventrogluteal area – a suitable site for intramuscular vaccination of infants and toddlers. Vaccine 2006; 24: 2403-8. ; 8.Cook IF, Williamson M, Pond D. Definition of needle length required for intramuscular deltoid injection in elderly adults: an ultrasonographic study. Vaccine 2006; 24: 937-40. ; 9.Cook IF, Murtagh J. Optimal technique for intramuscular injection of infants and toddlers: a randomised trial. Med J Aust 2005; 183: 60-3.; 10.Cook IF, Murtagh J. Comparative immunogenicity of hepatitis B vaccine administered into the ventrogluteal area and anterolateral thigh in infants. J Paediatr Child Health 2002; 38: 393-6. ; 11.Cook IF, Murtagh J. Comparative reactogenicity and parental acceptability of pertussis vaccines administered into the ventrogluteal area and anterolateral thigh in children aged 2, 4, 6 and 18 months. Vaccine 2003; 21: 3330-4.; 12.Cook IF. Sex differences in injection site reactions with human vaccines. Human Vaccines 2009; 5: 1-9. These studies allow evidence based guidelines to be formulated for vaccination practice which should help to maintain public confidence in vaccination programs by minimizing the adverse reactions of vaccines whilst maintaining their efficacy. It is noteworthy in this context that some recommendations made in this thesis have been translated into Australian Government policy in the 9th edition of “The Australian Immunisation Handbook” 2008, albeit a long time after their publication. This work also raises questions about contemporary clinical practice and identifies sex as a determinant of immune response and adverse reaction with some vaccines. Further studies in the area of vaccination practice and sex-difference in immune response to vaccines are suggested
Spinning in the NAPLAN ether: 'Postscript on the control societies' and the seduction of education in Australia
No full textThis paper applies concepts Deleuze developed in his ‘Postscript on the Societies of Control’, especially those relating to modulatory power, dividuation and control, to aspects of Australian schooling to explore how this transition is manifesting itself. Two modulatory machines of assessment, NAPLAN and My Schools, are examined as a means to better understand how the disciplinary institution is changing as a result of modulation. This transition from discipline to modulation is visible in the declining importance of the disciplinary teacher/student relationship as a measure of the success of the educative process. The transition occurs through seduction because that which purports to measure classroom quality is in fact a serpent of modulation that produces simulacra of the disciplinary classroom. The effect is to sever what happens in the disciplinary space from its representations in a luminiferous ether that overlays the classroom
Cold war theology: a controversial religious image of King James VI & I in England and on the Continent in 1603
No full textA former student of James Cameron’s, Ian Hazlett contributes a paper very much in the spirit of his teacher. It considers the afterlife of the King’s (or Negative) Confession, commissioned by James VI of Scotland in 1581 as a clear statement of his Calvinist credentials. By the time he gained the crown of England in 1603 however, his evolving religious views meant it had become a document he sought to distance himself from. Both Protestant and Catholic propagandists and publishers, keen to give a particular picture of the theological sympathies of the new English king, subsequently produced a surprisingly varied selection of versions of the Confession. These sources and what they can tell us about the theology and politics of the day are considered here for the first time in a scholarly study.Publisher PD
URI Disambiguation in the Context of Linked Data
No full textThe Linked Data initiative has given rise to an increasing number of RDF datasets, many of which are freely accessible online. These resources often arise as a result of database exports; however sufficient consideration may not be given to the unseen implications caused when they are used in the wider context of the Semantic Web. This paper investigates two popular resources, DBLP and DBpedia, and discusses whether the issues regarding identity management and co-reference resolution have been suitably addressed. We find that a large percentage of authors in DBLP have been conflated, and that disambiguation pages have been incorrectly linked using owl:sameAs within DBpedia. Systems for dealing with these issues are presented, and directions are given for future research
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