We evaluate the performance and statistical accuracy of the fast Fourier transform method for unconditional and conditional simulation. The method is applied under difficult but realistic circumstances of a large field (1001 by 1001 points) with abundant conditioning criteria and a band limited, anisotropic, fractal-based statistical characterization (the von Kármán model). The simple Fourier u...

This paper looks at the impact of high technology employment concentrations on urban sprawl. A methodology for translating spatial employment patterns, into place of residence patterns, is presented. On this basis, the consumption of land at the urban fringe due to both residential and nonresidential uses, is estimated. The method is tested empirically using data relating to the two main outer ...

When a new brand is launched, consumers are initially both uncertain of and not inertial to the new brand. Though these barriers may disappear on their own over time, a savvy brand manager who knows the relative importance of both can use relevant marketing levers to increase profits in the long run. This paper studies exactly these barriers and measures their relative effects on the launch of ...

..\bstracl-Allocalin!( nodes in a concurrenl compuler ~yslem depends on Ihe lopolo~v of Ihe system. In this work, we presenl a number of processor allocation strategies for Hypercycle based concurrenl syslems. Hypercycles is a class of multidimensional interconnection nelworks \\'hich includes such widely used networks as the binary ll-cubes, /'--ary ll-cubes, generalized hypercubes etc. The al...

This paper presents a new period-finding method based on conditional entropy that is both efficient and accurate. We demonstrate its applicability on simulated and real data. We find that it has comparable performance to other information-based techniques with simulated data but is superior with real data, both for finding periods and for just identifying periodic behaviour. In particular, it i...

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We investigate the relationship between controversial roll call votes and support for Democratic incumbents in the 2010 midterm elections. Consistent with previous analyses, we find that supporters of health care reform paid a significant price at the polls. We go beyond these analyses by identifying a mechanism for this apparent effect: constituents perceived incumbents who supported health ca...

Online freelance marketplaces are websites that match buyers of electronically deliverable services with freelancers. While freelancing has grown in recent years, it faces the classic ‘information asymmetry’ problem – buyers face uncertainty over seller quality. Typically, these markets use reputation systems to alleviate this issue, but the effectiveness of these systems is open to debate. We ...

In order to build a simulated robot that accepts instructions in unconstrained natural language, a corpus of 427 route instructions was collected from human subjects in the office navigation domain. The instructions were segmented by the steps in the actual route and labeled with the action taken in each step. This flat formulation reduced the problem to an IE/Segmentation task, to which we app...