155,076 research outputs found

    Revisiting The Original Ghosh Model: Can It Be More Plausible?

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    We reconsider in this paper the alleged implausibility of Ghosh’s model and we do so reformulating the model to incorporate an alternative closure rule. Our proposed closure rule is in line with the original allocation rules defined by A. Ghosh. The closure solves, to some extent, the implausibility problem that was pointed out by Oosterhaven for then value–added is correctly computed and responsive to allocation changes resulting from supply shocks. Some numerical examples illustrate the sectoral and aggregate consistency of the allocation equilibrium.Multi-sectoral Input-Output Models, Market Economy, Planned Economy

    As scaling effects of research productivity diminish, India must step up R&D investment

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    Advanced economies may be facing declining returns on research effort. This makes it all the more imperative that the Modi government gets its house, with regard to R&D, in order write Aniruddha Ghosh and Sujan Bandyopadhyay

    On the dynamics of vector quantization and neural gas

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    Witolaer A, Biehl M, Ghosh A, Hammer B. On the dynamics of vector quantization and neural gas. In: Verleysen M, ed. Proc. Of European Symposium on Artificial Neural Networks (ESANN'2007). Brussels, Belgium: d-side publications; 2007: 127-132

    Mollitrichosiphum (Metatrichosiphon) rhusae Ghosh

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    <i>Mollitrichosiphum</i> (<i>Metatrichosiphon</i>) <i>rhusae</i> Ghosh <p>(Figures 8, 12 d, e)</p> <p> <i>Mollitrichosiphum</i> (<i>Metatrichosiphon</i>) <i>rhusae</i> Ghosh, 1974: 168.</p> <p> <i>Mollitrichosiphum</i> (<i>Metatrichosiphon</i>) <i>rhusae</i> Ghosh: Raychaudhuri & Chatterjee, 1980: 357; Ghosh & Agarwala, 1993: 294; Remaudière & Remaudière, 1997: 177.</p> <p> <b>Material examined. China, Fujian</b>: Mt. Wuyi, 4.vii.2003, No. 14405, 1 apterous viviparous female and 1 alate viviparous female on <i>Castanea</i> sp. (X.L. Huang). <b>China, Hainan</b>: Mt. Diaoluo, alt. 1050m, 29.iii.2006, No. 18508, 6 apterous viviparous females on <i>Helicia hainanensis</i>; Mt. Diaoluo, alt. 800m, 30.iii.2006, No. 18511, 6 apterous viviparous females on <i>Helicia hainanensis</i>; Mt. Diaoluo, alt. 800m, 30.iii.2006, No. 18514, 4 apterous viviparous nymphs on <i>Helicia hainanensis</i>; Mt. Diaoluo, alt. 800m, 30.iii.2006, No. 18513, 3 apterous viviparous females and 2 alate viviparous females on Fagaceae; Mt. Diaoluo, alt. 929m, 13.xii.2007, No. 20858, 6 apterous viviparous females on Meliaceae (X. Y. Wang); Mt. Wuzhi, alt. 727m, 7.xii.2007, No. 20811, on 1 apterous viviparous female Fagaceae (X. Y. Wang).</p> <p> <b>Distribution</b>. China (Fujian, Hainan), India.</p> <p> <b>Host plants.</b> <i>Rhus</i> sp. (Anacardiaceae), <i>Helicia hainanensis</i> (Proteaceae), <i>Castanea</i> sp. (Fagaceae) and Meliaceae.</p> <p> <b>Comments</b>. Here newly recorded from China, the specimens have been identified using the keys given by Ghosh (1974) and Ghosh & Agarwala (1993). They appear conspecific with <i>M</i>. (<i>Me.</i>) <i>rhusae</i> Ghosh, although some biometric data are slightly different. For example, antennae slightly longer, 1.46–1.74 mm long (1.26- 1.65 mm long from India); siphunculi 1.25-1.59 mm long (1.06-1.40 mm long from India).</p>Published as part of <i>Zhang, Dong & Qiao, Gexia, 2010, Mollitrichosiphum Suenaga from China (Hemiptera: Aphididae), with the description of one new species, pp. 1-24 in Zootaxa 2608</i> on pages 15-17, DOI: <a href="http://zenodo.org/record/197753">10.5281/zenodo.197753</a&gt

    Introduction

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    MeSH term explosion and author rank improve expert recommendations

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    Information overload is an often-cited phenomenon that reduces the productivity, efficiency and efficacy of scientists. One challenge for scientists is to find appropriate collaborators in their research. The literature describes various solutions to the problem of expertise location, but most current approaches do not appear to be very suitable for expert recommendations in biomedical research. In this study, we present the development and initial evaluation of a vector space model-based algorithm to calculate researcher similarity using four inputs: 1) MeSH terms of publications; 2) MeSH terms and author rank; 3) exploded MeSH terms; and 4) exploded MeSH terms and author rank. We developed and evaluated the algorithm using a data set of 17,525 authors and their 22,542 papers. On average, our algorithms correctly predicted 2.5 of the top 5/10 coauthors of individual scientists. Exploded MeSH and author rank outperformed all other algorithms in accuracy, followed closely by MeSH and author rank. Our results show that the accuracy of MeSH term-based matching can be enhanced with other metadata such as author rank
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