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Creator | Title | Description | Subject | Date |
| 526 |
 |
Ingebretsen, Robert Bergstrom | Log spectral estimation for stationary and nonstationary processes | This research is concerned with two log spectral estimators in the context of both stationary and nonstationary signals. They differ because in one smoothing is realized before the logarithmic transformation, while the other is smoothed in the logarithimc domain. It is shown that for stationary sign... | Log spectral estimation; Nonstationary processes; Log spectral estimators | 1975 |
| 527 |
 |
Henderson, Thomas C. | Logical behaviors | In this paper we describe an approach to high-level multisensor integration in t h e context of an autonomous mobile robot. Previous papers have described the development of t h e INRIA mobile robot subsystems: 1. sensor and actuator systems 2. distance and range analysis 3. feature extraction ... | Multisensor integration; 3-D environment descriptions | 1989 |
| 528 |
 |
Henderson, Thomas C. | Logical sensor systems | Multi-sensor systems require a coherent and efficient treatment of the information provided by the various sensors. We propose a framework the Logical Sensor Specification System, in which the sensors can be abstractly defined in terms of computational processes operating on the output from other se... | Logical sensor systems; Multi-sensor systems; Multisensor systems; Logical Sensor Specification System | 1984 |
| 529 |
 |
Riloff, Ellen M. | Looking under the hood: tools for diagnosing your question answering engine | In this paper we analyze two question answering tasks : the TREC-8 question answering task and a set of reading comprehension exams. First, we show that Q/A systems perform better when there are multiple answer opportunities per question. Next, we analyze common approaches to two subproblems: ter... | TREC-8; Performance | 2001 |
| 530 |
 |
Balasubramonian, Rajeev | LOT-ECC: LOcalized and tiered reliability mechanisms for commodity memory systems | Memory system reliability is a serious and growing concern in modern servers. Existing chipkill-level mem- ory protection mechanisms suffer from several draw- backs. They activate a large number of chips on ev- ery memory access - this increases energy consump- tion, and reduces performance due to t... | | 2012-01-01 |
| 531 |
 |
Brunvand, Erik L. | Low latency self-timed flow-through FIFOs | Self-timed flow-through FIFOs are constructed easily using only a single C-element as control for each stage of the FIFO. Throughput can be very high in this type of FIFO as the communication required to send new data to the FIFO is local to only the first element of the FIFO. Circuit density can ... | | 1995 |
| 532 |
 |
Stoller, Leigh B. | Low latency workstation cluster communications using sender-based protocols | The use of workstations on a local area network to form scalable multicomputers has become quite common. A serious performance bottleneck in such "carpet clusters" is the communication protocol that is used to send data between nodes. We report on the design and implementation of a class of communic... | Workstations; Scalable multicomputers; Sender-based; Communication protocols | 1996 |
| 533 |
 |
Tinker, Peter | Managing large address spaces effectively on the Butterfly | The BBN Butterfly? Parallel Processor is a commercially-available multiprocessor which uses a memory management strategy based on a segmentation of the available memory. Using all of the memory of the machine efficiently is difficult because of the need to change the memory mapping dynamically. This... | BBN Butterfly Parallel Processor; Large address spaces | 1987 |
| 534 |
 |
Freire, Juliana; Silva, Claudio T. | Managing the evolution of dataflows with VisTrails | Scientists are now faced with an incredible volume of data to analyze. To successfully analyze and validate various hypotheses, it is necessary to pose several queries, correlate disparate data, and create insightful visualizations of both the simulated processes and observed phenomena. Data explor... | VisTrails; Dataflows; Provenance management | 2006 |
| 535 |
 |
Freire, Juliana | Managing XML data: an abridged overview | XML's flexibility makes it a natural format for both exchanging and integrating data from diverse data sources. In this survey, the authors give an overview of issues in managing XML data, discuss existing solutions, and outline the current technology's open problems and limitations. | XDM | 2004-07 |
| 536 |
 |
Johnson, Christopher R. | Map3d: scientific visualization program for multichannel time series data on unstructured, three-dimensional meshes. program user's guide | There 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 meshes | 1994 |
| 537 |
 |
Gopalakrishnan, Ganesh | MAPPED: Predictive dynamic analysis tool for MPI applications | Abstract-Formal dynamic analysis of MPI programs is critically important since conventional testing tools for message passing programs do not cover the space of possible non-deterministic communication matches, thus may miss bugs in the unexamined execution scenarios. While modern dynamic verificati... | | 2012-01-01 |
| 538 |
 |
Pascucci, Valerio | Mapping applications with collectives over sub-communicators on torus networks | The placement of tasks in a parallel application on specific nodes of a supercomputer can significantly impact performance. Traditionally, this task mapping has focused on reducing the distance between communicating tasks on the physical network. This minimizes the number of hops that point-to-point... | | 2012-01-01 |
| 539 |
 |
Parker, Steven G. | Massively parallel software rendering for visualizing large-scale data sets | For some time, researchers have done production visualization almost exclusively using high-end graphics workstations. They routinely archived and analyzed the outputs of simulations running on massively parallel supercomputers. Generally, a feature extraction step and a geometric modeling step t... | Parallel rendering; Volume rendering; Ray tracing; Isosurfacing | 2001 |
| 540 |
 |
Hansen, Charles D. | Massively parallel visualization: parallel rendering | This 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 processors | 1995 |
| 541 |
 |
Logan, Nelson Stanley | Master schedule building and the flexibly scheduled school | This paper contains a model of a technique for increasing the quality of educational and instructional opportunity for all students. This model is developed around the flexible or modularly scheduled secondary school. Also included is a procedure containing a computer program, with which the adminis... | Flexible scheduling; Flexibly scheduled school; Modularly scheduled school | 1970 |
| 542 |
 |
Joshi, Sarang; Venkatasubramanian, Suresh | Matching shapes using the current distance | Current Distance: It was introduced by Vaillant and Glaunès as a way of comparing shapes (point sets, curves, surfaces). This distance measure is defined by viewing a shape as a linear operator on a k-form field, and constructing a (dual) norm on the space of shapes. Shape Matching: Given two s... | | |
| 543 |
 |
Davis, Alan L. | Mathematical representation for VLSI arrays | This paper introduces a methodology for mapping algorithmic description into a concurrent implementation on silicon. This methodology can help in the solution of important problems using a new technique for the representation of highly parallel networks. This new approach for the representation of c... | VLSI arrays | 1980 |
| 544 |
 |
Baker, Jason; Hsieh, Wilson C. | Maya: multiple-dispatch syntax extension in Java | We have designed and implemented Maya, a version of Java that allows programmers to extend and reinterpret its syntax. Maya generalizes macro systems by treating grammar productions as generic functions, and semantic actions on productions as multimethods on the corresponding generic functions. P... | Maya; Syntax extension | 2001-12-11 |
| 545 |
 |
Balasubramonian, Rajeev | Memory hierarchy reconfiguration for energy and performance in general-purpose processor architectures | Conventional microarchitectures choose a single memory hierarchy design point targeted at the average application. In this paper we propose a cache and TLB layout and design that leverages repeater insertion to provide dynamic low-cost configurability trading of size and speed on a per application ... | Translation lookaside buffer (TLB) | 2000 |
| 546 |
 |
Regehr, John | 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 be t... | | 2006-01-01 |
| 547 |
 |
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 |
| 548 |
 |
Parker, Steven G. | Memory sharing for interactive ray tracing on clusters | We present recent results in the application of distributed shared memory to image parallel ray tracing on clusters. Image parallel rendering is traditionally limited to scenes that are small enough to be replicated in the memory of each node, because any processor may require access to any piece o... | Ray tracing; Out-of-core rendering; Distributed shared memory; Cache miss reduction; Parallel rendering | 2005-02 |
| 549 |
 |
Zhang, Lixin; Carter, John | Memory system support for image processing | Processor speeds are increasing rapidly, but memory speeds are not keeping pace. Image processing is an important application domain that is particularly impacted by this growing performance gap. Image processing algorithms tend to have poor memory locality because they access their data in a non-se... | Processor speeds; Memory system support; Memory speeds | 1999 |
| 550 |
 |
Parker, Steven G. | Memory-savvy distributed interactive ray tracing | Interactive ray tracing in a cluster environment requires paying close attention to the constraints of a loosely coupled distributed system. To render large scenes interactively, memory limits and network latency must be addressed efficiently. In this paper, we improve previous systems by moving to ... | | 2004 |
