Recognition technologies are being used extensively in both the commercial and research worlds. But recognizers are still error-prone, and this results in performance problems and brittle dialogues. These problems are...
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Context is an important, yet poorly understood and poorly utilized source of information in interactive computing. It will be of particular importance in the new millennium as users move away from their desktops and i...
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Home networking is becoming an essential part of everyday life. However, empirical studies and consumer reports indicate that the complexities of configuring and maintaining the home network impose a high barrier for ...
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This paper describes a Tcl/Tk widget set extension that supports three animated be-haviors: Fading, tickering, and rolling. This extension is targeted for use in informa-tion awareness applications that monitor and co...
Ray-tracing is a well-known method for producing realistic images. If we wish to view a ray-traced image stereoscopictlly, we must create two distinct views of the image: a left-eye view and a right-eye view. The most...
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The anticipated observation of the gravitational microlensing of gravitational waves (GWs) promises to shed light on a host of astrophysical and cosmological questions. However, extracting the parameters of the lens f...
The anticipated observation of the gravitational microlensing of gravitational waves (GWs) promises to shed light on a host of astrophysical and cosmological questions. However, extracting the parameters of the lens from the modulated GWs requires accurate modeling of the lensing amplification factor, accounting for wave-optics effects. Analytic solutions to the lens equation have not been found to date, except for a handful of simplistic lens models. While numerical solutions to this equation have been developed, the time and computational resources required to evaluate the amplification factor numerically make large-scale parameter estimation of the lens (and source) parameters prohibitive. On the other hand, surrogate modeling of GWs has proven to be a powerful tool to accurately, and rapidly, produce GW templates at arbitrary points in parameter space, interpolating from a finite set of available waveforms at discrete parameter values. In this work, we demonstrate that surrogate modeling can also effectively be applied to the evaluation of the time-domain microlensing amplification factor F˜(t). We show this by constructing F˜(t) for two lens models, viz. point-mass lens, and singular isothermal sphere, which notably includes logarithmic divergence behavior. We find both surrogates reproduce the original lens models accurately, with mismatches ≲5×10−4 across a range of plausible microlensed binary black hole sources observed by the Einstein Telescope. This surrogate is between 5 and 103 times faster than the underlying lensing models, and can be evaluated in about 100 ms. The accuracy and efficiency attained by our surrogate models will enable practical parameter estimation analyses of microlensed GWs.
作者：
Ayers, Eric Z.Stasko, John T.Graphics
Visualization and Usability Center College of Computing Georgia Institute of Technology AtlantaGA30332 United States
Users ofhypertext systems oftenfind themselves eagerlyfollowing hypertext links deeper and deeper into a hypertext weh, only to find themselves "lost" and unable find their way back to previously visited pag...
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作者：
Smith, IanGraphics
Visualization and Usability Center College of Computing Georgia Institute of Technology AtlantaGA30332-0280 United States
This tutorial provide attendees with an understanding of the possibilities provided by the World Wide Web for application development and a more detailed understanding of the issues involved in developing user interfa...
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ISBN:
(纸本)0897919262
This tutorial provide attendees with an understanding of the possibilities provided by the World Wide Web for application development and a more detailed understanding of the issues involved in developing user interfaces for the Web in Java.
This paper describes work to provide mappings between Xbased graphical interfaces and auditory interfaces. In our system, dubbed Mercator, this mapping is transparent to applications. The primary motivation for this w...
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