138,215 research outputs found
Comments on "State equation for the three-dimensional system of 'collapsing' hard spheres"
A recent paper [I. Klebanov et al. \emph{Mod. Phys. Lett. B} \textbf{22}
(2008) 3153; arXiv:0712.0433] claims that the exact solution of the
Percus-Yevick (PY) integral equation for a system of hard spheres plus a step
potential is obtained. The aim of this paper is to show that Klebanov et al.'s
result is incompatible with the PY equation since it violates two known cases:
the low-density limit and the hard-sphere limit.Comment: 4 pages; v2: title chang
Productivity measurement at the micro level
Bibliography: p. 45.Gabriel R. Bitran and Li Chang
An optimization approach to the Kanban system
Bibliography: p.31.by Gabriel R. Bitran and Li Chang
Text to 3D Scene Generation with Rich Lexical Grounding
The ability to map descriptions of scenes to 3D geometric representations has
many applications in areas such as art, education, and robotics. However, prior
work on the text to 3D scene generation task has used manually specified object
categories and language that identifies them. We introduce a dataset of 3D
scenes annotated with natural language descriptions and learn from this data
how to ground textual descriptions to physical objects. Our method successfully
grounds a variety of lexical terms to concrete referents, and we show
quantitatively that our method improves 3D scene generation over previous work
using purely rule-based methods. We evaluate the fidelity and plausibility of
3D scenes generated with our grounding approach through human judgments. To
ease evaluation on this task, we also introduce an automated metric that
strongly correlates with human judgments.Comment: 10 pages, 7 figures, 3 tables. To appear in ACL-IJCNLP 201
Standard & Poorâs Small Business Portfolio Model introduces a potential new tool for community development loan risk analysis
The Small Business Portfolio Evaluatorâą analytical model helps issuers and underwriters to assess the gross default and prepayment risk of small business loan portfolios using a Monte Carlo simulation. This new tool provides an important first step to securitizing existing community development loan portfolios.
Climate scientists and the public: interactions and knowledge exchanges
Raising public awareness of climate change is crucial for transforming individual behaviours and amassing support to policy measures, which may threaten prosperity and comfort levels that came to be expected in affluent societies. Scientists are one of several agents involved in public communication of climate chang
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