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Creator | Title | Description | Subject | Date |
| 176 |
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Regehr, John | Poster abstract: TinyOS 2.1 adding threads and memory protection to tinyOS | The release of TinyOS 2.0 two years ago was motivated by the need for greater platform flexibility, improved robustness and reliability, and a move towards service oriented application development. Since this time, we have seen the community embrace these efforts and add support for additional hardw... | | 2008-01-01 |
| 177 |
 |
Mates, Phillip Lopes; Silva, Claudio T. | crowdLabs: a provenance enabled web repository | The National Science Foundation Science and Technology Center for Coastal Margin Observation and Prediction (CMPO) is a multi-institutional center dedicated to coastal margins, which are regions consisting of very productive ecosystems that play an important role in global elemental cycles. CMPO ma... | CrowdLabs; Web repository; Coastal margins; Trapeze Interactive Poster | 2010-03-15 |
| 178 |
 |
Regehr, John | Eliminating the call stack to save RAM | Most programming languages support a call stack in the programming model and also in the runtime system.We show that for applications targeting low-power embedded microcontrollers (MCUs), RAM usage can be significantly decreased by partially or completely eliminating the runtime callstack. We presen... | | 2009-01-01 |
| 179 |
 |
Hansen, Charles D. | Penumbra maps: approximate soft shadows in real-time | Generating soft shadows quickly is difficult. Few techniques have enough flexibility to interactively render soft shadows in scenes with arbitrarily complex occluders and receivers. This paper introduces the penumbra map, which extends current shadow map techniques to interactively approximate soft ... | | 2003-01-01 |
| 180 |
 |
Regehr, John | Precise garbage collection for C | Magpie is a source-to-source transformation for C programs that enables precise garbage collection, where precise means that integers are not confused with pointers, and the liveness of a pointer is apparent at the source level. Precise GC is primarily useful for long-running programs and programs t... | | 2009-01-01 |
| 181 |
 |
Gopalakrishnan, Ganesh | High level optimizations in compiling process descriptions to asynchronous circuits | Asynchronous/'Self-Timed designs are beginning to attract attention as promising means of dealing with the complexity of modern VLSI technology. In this paper, we present our views on why asynchronous systems matter. We then present details of our high level synthesis tool SHILPA that can automatic... | Self-timed; VLSI | 1992 |
| 182 |
 |
Gopalakrishnan, Ganesh | A general compositional approach to verifying hierarchical cache coherence protocols | Modern chip multiprocessor (CMP) cache coherence protocols are extremely complex and error prone to design. Modern symbolic methods are unable to provide much leverage for this class of examples. In [1], we presented a method to verify hierarchical and inclusive versions of these protocols using ... | Hierarchical cache coherence protocols; Verification | 2006-11-26 |
| 183 |
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Bennion, Scott Thomas | A method of solution for hydrodynamics and radiation diffusion as a multi-material problem in one dimension | | Multi-material problem | 1971 |
| 184 |
 |
Sobh, Tarek M.; Henderson, Thomas C. | URK: Utah robot kit - a three-link robot prototype | In this paper we will present the stages of designing and building a three-link robot manipulator prototype that was built as part of a research project for establishing a prototyping environment for robot manipulators. Building this robot enabled us determine the required subsystems and interfaces ... | URK; Utah robot kit; robot manipulator prototype; prototyping environment; robot manipulators; three-link | 1994 |
| 185 |
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Stark, Michael M.; Martin, William; Cohen, Elaine; Lyche, Tom; Riesenfeld, Richard F. | B-splines for physically-based rendering | Although B-spline curves and surfaces have enjoyed a long established place in the graphics community as constructive modeling tools, the use of B-spline approximation techniques has received relatively little attention in rendering. In this work we explore the use of 4D and 5D tensor product B-s... | B-spline curves; Rendering algorithms | 2002-01-09 |
| 186 |
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Sobh, Tarek M.; Henderson, Thomas C. | A dynamic recursive structure for intelligent inspection | We suggest a new approach for inspection and reverse engineering applications. In particular we investigate the use of discrete event dynamic systems DEDS to guide and control the active exploration and sensing of mechanical parts for industrial inspection and reverse engineering?? We introduce... | Intelligent inspection; Discrete event dynamic systems; DEDS; Industrial inspection; Dynamic recursive structure | 1992 |
| 187 |
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Richardson, William F.; Brunvand, Erik L. | The NSR processor prototype | The NSR (Non-Synchronous RISC) processor is a general purpose processor structured as a collection of self-timed units that operate concurrently and communicate over bundled data channels in the style of micropipelines. These units correspond to standard synchronous pipeline stages such as Instructi... | Self-timed Systems; Asynchronous systems; Micropipelines; FPGAs; RISC processor; NSR | 1992 |
| 188 |
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Boll, Steven F.; Done, William John | Noise suppression methods for robust speech processing (1 Oct. 1978- 31 Mar. 1981) | Robust speech processing in practical operating environments requires effective environmental and processor noise suppression. This report describes the technical findings and accomplishments during this reporting period for period for research program funded to develop real time, compressed speech ... | Noise suppression; Compressed speech analysis-synthesis algorithms; Signal contamination | 1978 |
| 189 |
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Carter, John B. | Reducing consistency traffic and cache misses in the avalanche multiprocessor | For a parallel architecture to scale effectively, communication latency between processors must be avoided. We have found that the source of a large number of avoidable cache misses is the use of hardwired write-invalidate coherency protocols, which often exhibit high cache miss rates due to exces... | Consistency traffic; Cache misses; Parallel architecture; Communication latency | 1995 |
| 190 |
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Henderson, Thomas C. | Multisensor knowledge systems: interpreting 3-D structure | We describe an approach which facilitates and makes explicit the organization of the knowledge necessary to map multisensor system requirements onto an appropriate assembly of algorithms, processors, sensors, and actuators. We have previously introduced the Multisensor Kernel System and Logical Sens... | Multisensors; Knowledge systems; 3-D structure; Logical Sensors | 1987 |
| 191 |
 |
Akella, Venkatesh | hopCP: language definition, semantics and examples | We describe a formalism for high level modeling of hardware based on flow graphs and nonatomic actions called hopCP. A module is the description of a hardware system in hopCP, which contains a flow graph to model the behavioral aspects and ports which represent the communication links. Operations ar... | hopCP | 1990 |
| 192 |
 |
Gopalakrishnan, Ganesh | Efficient symbolic simulation based verification using the parametric form of boolean expressions (rev.) | We present several new techniques to make symbolic simulation based verification efficient. These techniques hinge on the use of the parametric form of a boolean expression (e.g. the parametric form for the boolean expression XQ V -<xi is the equivalent expression 3a b . (XQ = a V 6) A (xi = b), whe... | Symbolic simulation; Verification | 1991 |
| 193 |
 |
Cohen, Elaine | Minimum distance queries for polygonal and parametric models | Calculation of the minimum distance to a geometric object or the minimum separation between objects is a fundamental problem that has application in a variety of arenas. Minimum separation queries for sculptured surfaces are believed particularly difficult, yet are increasingly important as modeli... | Minimum separation; Minimum distance; Virtual prototyping | 1997 |
| 194 |
 |
Organick, Elliott I. | Characteristics of a functional programming language | A programming language kernel is presented where an algorithm is a function defined through a functional expression. The only data structure introduced is an object that may be an atom or a sequence of objects. A number of functional forms are defined, with a notation close to ordinary mathematical ... | | 1980 |
| 195 |
 |
Parker, Steven G.; Hansen, Charles D. | Distributed interactive ray tracing for large volume visualization | We have constructed a distributed parallel ray tracing system that interactively produces isosurface renderings from large data sets on a cluster of commodity PCs. The program was derived from the SCI Institute's interactive ray tracer (*-Ray), which utilizes small to large shared memory platforms, ... | Ray tracing; Volume rendering; Large data; Cluster computing; Distributed shared memory | 2003 |
| 196 |
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Regehr, John; Eide, Eric Norman | Memory safety and untrusted extensions for TinyOS | Sensor network applications should be reliable. However, TinyOS, the dominant sensor net OS, lacks basic building blocks for reliable software systems: memory protection, isolation, and safe termination. These features are typically found in general-purpose operating systems but are believed to b... | TinyOS | 2006-06-30 |
| 197 |
 |
Hansen, Charles D.; Whitaker, Ross T. | Interactive deformation and visualization of level set surfaces using graphics hardware | Deformable isosurfaces, implemented with level-set methods, have demonstrated a great potential in visualization for applications such as segmentation, surface processing, and surface reconstruction. Their usefulness has been limited, however, by their high computational cost and and reliance on sig... | Deformation; Level sets; Deformable models; Image segmentation; Volume visualization; GPU; Streaming computation; Isosurfaces | 2003 |
| 198 |
 |
Subrahmanyam, P.A. | FUNLOG = functions + logic: a computational model integrating logic programming and functional programming (Rev. May 1983) | Funlog, a computational model which attempts to integrate functional programming and logic programming is described. The model supports computations with infinite data structures without the introduction of complex control issues at the user-level. Control characteristics are improved as compared wi... | FUNLOG; Functional programming; Logic programming | 1983 |
| 199 |
 |
Starkey, Mike | Switchbox routing by pattern matching | Many good algorithms have been designed that provide good solutions to the wire routing problem in VLSI. Unfortunately, many of these algorithms only consider a small subset of different parameters such as number of layers, routability of layers and technology. We believe that these algorithms can b... | Switchbox routing; pattern matching; wire routing problem; VLSI | 1991 |
| 200 |
 |
Balasubramonian, Rajeev | Dynamically tuning processor resources with adaptive processing | Using adaptive processing to dynamically tune major microprocessor resources, developers can achieve greater energy efficiency with reasonable hardware and software overhead while avoiding undue performance loss. | Adaptive processing; Energy efficiency; DRI-cache | 2003-12 |
