176 - 200 of 912
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CreatorTitleDescriptionSubjectDate
176 Boll, Steven F.Suppression of acoustic noise in speech using two microphone adaptive noise cancellationAcoustic noise with energy greater or equal to the speech is suppressed by filtering a separately recorded correlated noise signal and subtracting it from the speech waveform. This approach was investigated to determine the degree of noise suppression possible using an external correlated input. The...Suppression; acoustic noise; adaptive noise cancellation1979
177 Hibler, Michael J.Interface and execution models in the fluke kernelWe have defined and implemented a new kernel API that makes every exported operation either fully interruptible and restartable, thereby appearing atomic to the user. To achieve interruptibility, all possible states in which a thread may become blocked for a "long" time are completely representable ...Fluke kernel; Interruptibility1998
178 Henderson, Thomas C.Implementing multi-sensor systems in a functional languageWe discuss a methodology for configuring systems of sensors using a functional language. To date no such general methodology exists, and existing multi-sensor systems have been hand-crafted around a particular application. Our main point is that the use of abstraction and of functional language fe...Multi-sensor systems; Multisensor systems1984
179 Riloff, Ellen M.OpinionFinder: a system for subjectivity analysisOpinionFinder is a system that performs subjectivity analysis, automatically identifying when opinions, sentiments, speculations and other private states are present in text. Specifically, OpinionFinder aims to identify subjective sentences and to mark various aspects of the subjectivity in the...OpinionFinder; Subjectivity analysis2005
180 Carter, Tony M.The path programmable logic (PPL) user's manualThis manual describes the primitive NMOS path programmable logic cells currently in use at the University of Utah. It contains detailed descriptions, schematics and composite layout of all cells. Also included are PPL programming rules as well as layout design rules for each cell set.1982
181 Hansen, Charles D.; Shirley, Peter S.Parallel point reprojectionImprovements in hardware have recently made interactive ray tracing practical for some applications. However, when the scene complexity or rendering algorithm cost is high, the frame rate is too low in practice. Researchers have attempted to solve this problem by caching results from ray tracing an...Point reprojection; Ray tracing2001
182 Lefohn, Aaron; Kniss, Joe; Hansen, Charles D.; Whitaker, Ross T.Interactive deformation and visualization of level set surfaces using graphics hardwareDeformable isosurfaces, implemented with level-set methods, have demonstrated a great potential in visualization for applications such as segmentation, surface process- ing, and surface reconstruction. Their usefulness has been limited, however, by two problems. First, 3D level sets are relativel...Interactive deformation; Deformable isosurfaces; Level-set methods2003-04-16
183 Hansen, Charles D.CAD-based computer vision: the automatic generation of recognition stragtegiesThree-dimensional model-based computer vision uses geometric models of objects and sensed data to recognize objects in a scene. Likewise, Computer Aided Design (CAD) systems are used to interactively generate three-dimensional models during these fields. Recently, the unification of CAD and vision s...1988
184 Watkins, Gary ScottA real time visible surface algorithmWith the increasing use of computer graphics, a need is growing for a processor capable of displaying solid objects. Environmental simulation and architectural modeling are only two areas that would benefit from such a diplay processor. This dissertation describes an algorithm designed for such a ...Surface algorithm1970
185 Bruderlin, BeatInteraction with constraints in 3D modelingInteractive geometric modeling is an important part of the industrial product design process. This paper describes how constraints can be used to facilitate the interactive definition of geometric objects and assemblies. We have implemented a geometric modeling system that combines the definition o...Interactive geometric modeling; Industrial product design; Geometric constraints1990
186 Johnson, Christopher R.Map3d: scientific visualization program for multichannel time series data on unstructured, three-dimensional meshes. program user's guideThere are many examples in biomedical research of recording time signals with multi-sensor arrays whose elements are arranged in irregular, three-dimensional grids [1, 2, 3, 4]. If the nodes in such arrays can be connected into "surfaces", it is possible to employ linear interpolation techniques to ...Map3D; Multi-sensor arrays; Scientific visualization; Multichannel time series data; Three-dimensional meshes1994
187 Smith, Kent F.Automatic rapid prototyping of semi-custom VLSI circuits using FPGAsWe describe a technique for translating semi-custom VLSI circuits automatically, integrating two design environments, into field programmable gate arrays (FPGAs) for rapid and inexpensive prototyping. The VLSI circuits are designed using a cell-matrix based environment that produces chips with densi...Semi-custom; VLSI circuits1994
188 Balasubramonian, RajeevReducing the complexity of the register file in dynamic superscalar processorsDynamic superscalar processors execute multiple instructions out-of-order by looking for independent operations within a large window. The number of physical registers within the processor has a direct impact on the size of this window as most in-flight instructions require a new physical register a...Dynamic superscalar processors; Register file; Instruction-level parallelism; Microarchitecture; Reorder buffer2001
189 Hansen, Charles D.; Whitaker, Ross T.Streaming narrow-band algorithm: interactive computation and visualization of level setsAbstract-Deformable isosurfaces, implemented with level-set methods, have demonstrated a great potential in visualization and computer graphics for applications such as segmentation, surface processing, and physically-based modeling. Their usefulness has been limited, however, by their high computa...2004-07
190 Hansen, Charles D.Interactive texture-based volume rendering for large data setsVisualization is an integral part of scientific computation and simulation. State-of-the-art simulations of physical systems can generate terabytes to petabytes of time-varying data where a single time step can contain more than a gigabyte of data per variable. As memory sizes continue to increase, ...Parallel rendering; Volume rendering; TRex2001
191 Zhang, LixinISIM: The simulator for the impulse adaptable memory systemThis document describes ISIM, the simulator for the Impulse Adaptable Memory System. Impulse adds two new features to a conventional memory system. First, it supports a configurable, extra level of address remapping at the memory controller. Second, it supports prefetching at the memory controller. ...ISIM; Impulse Adaptable Memory System; Memory systems1999
192 Stoller, Leigh B.Message passing support in the Avalanche widgetMinimizing communication latency in message passing multiprocessing systems is critical. An emerging problem in these systems is the latency contribution costs caused by the need to percolate the message through the memory hierarchy (at both sending and receiving nodes) and the additional cost of ma...Avalanche widget; Message passing; Cache coherence; Message copying; Cache miss rates; Computer memory1996
193 Lindstrom, Gary E.Migrating relational data to an OODB: strategies and lessions from a molecular biology experienceThe growing maturity of OODB technology is causing many enterprises to consider migrating relational databases to OODBs. While data remapping is relatively straightforward, greater challenges lie in economically and non-invasively adapting legacy application software. We report on a genetics labora...OODB; Relational data; Data migration1997
194 Beazley, David. M.A wrapper generation tool for the creation of scriptable scientific applicationsIn recent years, there has been considerable interest in the use of scripting languages as a mechanism for controlling and developing scientific software. Scripting languages allow scientific applications to be encapsulated in an interpreted environment similar to that found in commercial scientific...1998
195 Henderson, Thomas C.; McMurtry, Patrick; Smith, Philip J.; Voth, Gregory Alan; Wight, Charles Albert; Pershing, David W.Simulating accidental fires and explosionsThe Center for the Simulation of Accidental Fires and Explosions at the University of Utah focuses on providing state-of-the-art, science-based tools for the numerical simulation of accidental fires and explosions, especially in the context of handling and storing highly flammable materials.Center for the Simulation of Accidental Fires and Explosions; PBX9501; HMX2000
196 Li, Guodong; Gopalakrishnan, Ganesh; Kirby, Robert Michael IIFormal specification of MPI 2.0: case study in specifying a practical concurrent programming APIWe describe the rst formal speci cation of a non-trivial subset of MPI, the dominant communication API in high performance computing. Engineering a formal speci cation for a non-trivial concurrency API requires the right combination of rigor, executability, and traceability, while also serving a...MPI 2.02009
197 Hansen, Charles D.Massively parallel visualization: parallel renderingThis paper presents rendering algorithms, developed for massively parallel processors (MPPs), for polygonal, spheres, and volumetric data. The polygon algorithm uses a data parallel approach whereas the sphere and volume renderer use a MIMD approach. Implementations for these algorithms are presente...Parallel visualization; Parallel rendering; Massively parallel processors1995
198 Fujimoto, Richard M.Performance measurements of distributed simulation strategiesA multiprocessor-based, distributed simulation testbed is described that facilitates controlled experimentation with distributed simulation algorithms. The performance of simulation strategies using deadlock avoidance and deadlock detection and recovery techniques are examined using various syntheti...Performance; Distributed simulation; Discrete simulation; Event-oriented; Queueing models1987
199 Creem-Regehr, Sarah Hope; Willemsen, Peter; Gooch, Amy A.; Thompson, William B.The influence of restricted viewing conditions on egocentric distance perception: implications for real and virtual environmentsThree experiments examined the influence of field of view and binocular viewing restrictions on absolute distance perception in the real world. Previous work has found that visually directed walking tasks reveal accurate distance estimations in full-cue, real world environments to distances of ab...Distance perception; Egocentric2003-08-29
200 Fujimoto, Richard M.Optimal performance of distributed simulation programsThis paper describes a technique to analyze the potential speedup of distributed simulation programs. A distributed simulation strategy is proposed which minimizes execution time through the use of an oracle to control the simulation. Because the strategy relies on an oracle, it cannot be used for ...Distributed simulation programs1987
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