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Institution

University of New South Wales

EducationSydney, New South Wales, Australia
About: University of New South Wales is a education organization based out in Sydney, New South Wales, Australia. It is known for research contribution in the topics: Population & Poison control. The organization has 51197 authors who have published 153634 publications receiving 4880608 citations. The organization is also known as: UNSW & UNSW Australia.


Papers
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Proceedings ArticleDOI
21 Apr 2008
TL;DR: This paper proposes new filtering techniques by exploiting the ordering information and drastically reduce the candidate sizes and improve the efficiency of existing algorithms to find pairs of records such that their similarities are above a given threshold.
Abstract: With the increasing amount of data and the need to integrate data from multiple data sources, a challenging issue is to find near duplicate records efficiently. In this paper, we focus on efficient algorithms to find pairs of records such that their similarities are above a given threshold. Several existing algorithms rely on the prefix filtering principle to avoid computing similarity values for all possible pairs of records. We propose new filtering techniques by exploiting the ordering information; they are integrated into the existing methods and drastically reduce the candidate sizes and hence improve the efficiency. Experimental results show that our proposed algorithms can achieve up to 2.6x - 5x speed-up over previous algorithms on several real datasets and provide alternative solutions to the near duplicate Web page detection problem.

486 citations

Journal ArticleDOI
24 Oct 2018-Nature
TL;DR: Observation of the anisotropic propagation of polaritons along the surface of layered, semiconducting α-MoO3 confirms the existence of this phenomenon in natural materials.
Abstract: Polaritons-hybrid light-matter excitations-enable nanoscale control of light. Particularly large polariton field confinement and long lifetimes can be found in graphene and materials consisting of two-dimensional layers bound by weak van der Waals forces1,2 (vdW materials). These polaritons can be tuned by electric fields3,4 or by material thickness5, leading to applications including nanolasers6, tunable infrared and terahertz detectors7, and molecular sensors8. Polaritons with anisotropic propagation along the surface of vdW materials have been predicted, caused by in-plane anisotropic structural and electronic properties9. In such materials, elliptic and hyperbolic in-plane polariton dispersion can be expected (for example, plasmon polaritons in black phosphorus9), the latter leading to an enhanced density of optical states and ray-like directional propagation along the surface. However, observation of anisotropic polariton propagation in natural materials has so far remained elusive. Here we report anisotropic polariton propagation along the surface of α-MoO3, a natural vdW material. By infrared nano-imaging and nano-spectroscopy of semiconducting α-MoO3 flakes and disks, we visualize and verify phonon polaritons with elliptic and hyperbolic in-plane dispersion, and with wavelengths (up to 60 times smaller than the corresponding photon wavelengths) comparable to those of graphene plasmon polaritons and boron nitride phonon polaritons3-5. From signal oscillations in real-space images we measure polariton amplitude lifetimes of 8 picoseconds, which is more than ten times larger than that of graphene plasmon polaritons at room temperature10. They are also a factor of about four larger than the best values so far reported for phonon polaritons in isotopically engineered boron nitride11 and for graphene plasmon polaritons at low temperatures12. In-plane anisotropic and ultra-low-loss polaritons in vdW materials could enable directional and strong light-matter interactions, nanoscale directional energy transfer and integrated flat optics in applications ranging from bio-sensing to quantum nanophotonics.

485 citations

Journal ArticleDOI
TL;DR: The authors argue that the notion of a socially responsible corporation is potentially an oxymoron because of the naturally conflicted nature of the corporation, which has profound implications for our understanding of corporate social responsibility, what we view as the relevant issues relating to it, and how we investigate its role and impact.
Abstract: Executive Overview Despite differences of opinion about the efficacy of corporate social responsibility, there is a general consensus among academics, policy makers, and practitioners that corporations operate with a social sanction that requires that they operate within the norms and mores of the societies in which they exist. In this article I argue that the notion of a socially responsible corporation is potentially an oxymoron because of the naturally conflicted nature of the corporation. This has profound implications for our understanding of corporate social responsibility, what we view as the relevant issues relating to it, and how we investigate its role and impact.

484 citations

Journal ArticleDOI
TL;DR: The SDSS-III/Apache Point Observatory Galactic Evolution Experiment (APOGEE) survey operated from 2011-2014 using the APOGEE spectrograph, which collects high-resolution (R ~ 22,500), near-IR (1.51-1.70 µm) spectra with a multiplexing (300 fiber-fed objects) capability as discussed by the authors.
Abstract: The SDSS-III/Apache Point Observatory Galactic Evolution Experiment (APOGEE) survey operated from 2011–2014 using the APOGEE spectrograph, which collects high-resolution (R ~ 22,500), near-IR (1.51–1.70 µm) spectra with a multiplexing (300 fiber-fed objects) capability. We describe the survey data products that are publicly available, which include catalogs with radial velocity, stellar parameters, and 15 elemental abundances for over 150,000 stars, as well as the more than 500,000 spectra from which these quantities are derived. Calibration relations for the stellar parameters (Teff , log g, [M/H], [a/M]) and abundances (C, N, O, Na, Mg, Al, Si, S, K, Ca, Ti, V, Mn, Fe, Ni) are presented and discussed. The internal scatter of the abundances within clusters indicates that abundance precision is generally between 0.05 and 0.09 dex across a broad temperature range; it is smaller for some elemental abundances within more limited ranges and at high signal-to-noise ratio. We assess the accuracy of the abundances using comparison of mean cluster metallicities with literature values, APOGEE observations of the solar spectrum and of Arcturus, comparison of individual star abundances with other measurements, and consideration of the locus of derived parameters and abundances of the entire sample, and find that it is challenging to determine the absolute abundance scale; external accuracy may be good to 0.1–0.2 dex. Uncertainties may be larger at cooler temperatures (Teff < 4000 K). Access to the public data release and data products is described, and some guidance for using the data products is provided.

484 citations

Journal ArticleDOI
TL;DR: In this article, a cluster randomised controlled trial, urban residential sites were randomly assigned to person-centred care, dementia-care mapping, or usual care, and the primary outcome was agitation measured with the Cohen-Mansfield agitation inventory (CMAI).
Abstract: Summary Background Evidence for improved outcomes for people with dementia through provision of person-centred care and dementia-care mapping is largely observational. We aimed to do a large, randomised comparison of person-centred care, dementia-care mapping, and usual care. Methods In a cluster randomised controlled trial, urban residential sites were randomly assigned to person-centred care, dementia-care mapping, or usual care. Carers received training and support in either intervention or continued usual care. Treatment allocation was masked to assessors. The primary outcome was agitation measured with the Cohen-Mansfield agitation inventory (CMAI). Secondary outcomes included psychiatric symptoms including hallucinations, neuropsychological status, quality of life, falls, and cost of treatment. Outcome measures were assessed before and directly after 4 months of intervention, and at 4 months of follow-up. Hierarchical linear models were used to test treatment and time effects. Analysis was by intention to treat. This trial is registered with the Australia and New Zealand Clinical Trials Registry, number ACTRN12608000084381. Findings 15 care sites with 289 residents were randomly assigned. Pairwise contrasts revealed that at follow-up, and relative to usual care, CMAI score was lower in sites providing mapping (mean difference 10·9, 95% CI 0·7–21·1; p=0·04) and person-centred care (13·6, 3·3–23·9; p=0·01). Compared with usual care, fewer falls were recorded in sites that used mapping (0·24, 0·08–0·40; p=0·02) but there were more falls with person-centred care (0·15, 0·02–0·28; p=0·03). There were no other significant effects. Interpretation Person-centred care and dementia-care mapping both seem to reduce agitation in people with dementia in residential care. Funding Australian Health Ministers' Advisory Council.

484 citations


Authors

Showing all 51897 results

NameH-indexPapersCitations
Ronald C. Kessler2741332328983
Nicholas G. Martin1921770161952
John C. Morris1831441168413
Richard S. Ellis169882136011
Ian J. Deary1661795114161
Nicholas J. Talley158157190197
Wolfgang Wagner1562342123391
Bruce D. Walker15577986020
Xiang Zhang1541733117576
Ian Smail15189583777
Rui Zhang1512625107917
Marvin Johnson1491827119520
John R. Hodges14981282709
Amartya Sen149689141907
J. Fraser Stoddart147123996083
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
2023389
20221,183
202111,342
202011,235
20199,891
20189,145