Browsing by Title
Now showing items 3458-3477 of 4789
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Random Intersection Trees
(JMLRJournal of Machine Learning Research, 2014-02)Finding interactions between variables in large and high-dimensional datasets is often a serious computational challenge. Most approaches build up interaction sets incrementally, adding variables in a greedy fashion. The ...
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Random Lens Imaging
(2006-09-02)We call a random lens one for which the function relating the input light ray to the output sensor location is pseudo-random. Imaging systems with random lensescan expand the space of possible camera designs, allowing new ...
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RANDOM WALKS ON THE RANDOM GRAPH
(ANNALS OF PROBABILITY, 2018-01)
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Random-projection ensemble classification
We introduce a very general method for high-dimensional classification, based on careful combination of the results of applying an arbitrary base classifier to random projections of the feature vectors into a lower-dimensional ...
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Random-World Semantics and Syntactic Independence for Expressive Languages
(2008-05-03)We consider three desiderata for a language combining logic and probability: logical expressivity, random-world semantics, and the existence of a useful syntactic condition for probabilistic independence. Achieving these ...
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Range Segmentation Using Visibility Constraints
(2001-09-01)Visibility constraints can aid the segmentation of foreground objects observed with multiple range images. In our approach, points are defined as foreground if they can be determined to occlude some {em empty space} in the ...
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Rank Priors for Continuous Non-Linear Dimensionality Reduction
(2008-09-26)Non-linear dimensionality reduction methods are powerful techniques to deal with high-dimensional datasets. However, they often are susceptible to local minima and perform poorly when initialized far from the global optimum, ...
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Rapid mixing renders quantum dissipative systems stable
(APSPhysical Review A, 2015-04-09)The physics of many materials is modeled by quantum many-body systems with local interactions. If the model of the system is sensitive to noise from the environment, or small perturbations to the original interactions, ...
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Ratchet Current Landscape at Quantum Resonance
(2020-12-14)The ratchet effect is the rectified motion of atoms using an unbiased driving force. By ‘’unbiased’’ we mean to say that the time-average is equal to zero. This can be accomplished experimentally using cold atoms in a ...
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Rational Arithmetic For Mini-Computers
(MIT Artificial Intelligence Laboratory, 1977-09)A representation for numbers using two computer words is discussed, where the value represented is the ratio of the corresponding integers. This allows for better dynamic range and relative accuracy than single-precision ...
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Rational Robustness for Mechanism Design
(2009-11-10)The currently prevailing equilibrium-based approach to mechanism design suffers from a plurality of fundamental problems, and new conceptual frameworks are needed to solve or sufficiently alleviate them. In this paper, we ...
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Rayleigh-Taylor mixing: confinement by stratification and geometry
(University of CambridgeDepartment of Applied Mathematics and Theoretical PhysicsSelwyn College, 2010-03-16)Rayleigh-Taylor instability has been an area of active research in fluid dynamics for the last twenty years, but relatively little attention has been paid to the dynamics of problems where Rayleigh-Taylor instability ...
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Reactive Integrated Motion Planning and Execution Using Chekhov
(2013-06-06)We envision a world in which robots and humans can collaborate to perform complex tasks in real-world environments. Current motion planners successfully generate trajectories for a robot with multiple degrees of freedom, ...
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Readable Layout of Unbalanced N-ary Trees
(MIT Artificial Intelligence Laboratory, 1986-08)The automatic layout of unbounded n-ary tree structures is a problem of subjectively meshing two independent goals: clarity and space efficiency. This paper presents a minimal set of subjective aesthetics which insures ...
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A Real Time Data Stream Processing Model for a Smart City Application Leveraging Intelligent Internet of Things (Iot) Concept
(2017-12-09)Due to the vast amount of data that is being generated by the sensors through the smart devices in smart cities, streams of data must be processed in real time to gain insight quickly and to make decisions that are in most ...
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A Real Time Garbage Collector Based on the Lifetimes of Objects
(1981-10-01)In previous heap storage systems, the cost of creating objects and garbage collection is independent of the lifetime of the object. Since objects with short lifetimes account for a large portion of storage use, it's ...
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A Real-Time Data Stream Processing Model for a Smart City Application Leveraging Intelligent Internet of Things (IOT) Concepts
(2017-12-15)Due to the vast amount of data that is being generated by the sensors through the smart devices in smart cities, streams of data must be processed in real time to gain insight quickly and to make decisions that are in most ...
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Real-time generation of procedural forests
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2013)The creation of 3D models for games and simulations is generally a time-consuming and labour intensive task. Forested landscapes are an important component of many large virtual environments in games and film. To create ...
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Real-Time Part Position Sensing
(1988-05-01)A light stripe vision system is used to measure the location of polyhedral features of parts from a single frame of video camera output. Issues such as accuracy in locating the line segments of intersection in the image ...
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Realistic Modeling of Simple and Complex Cell Tuning in the HMAXModel, and Implications for Invariant Object Recognition in Cortex
(2004-07-27)Riesenhuber \& Poggio recently proposed a model of object recognitionin cortex which, beyond integrating general beliefs about the visualsystem in a quantitative framework, made testable predictions aboutvisual processing. ...