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Creator | Title | Description | Subject | Date |
| 1 |
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Lindstrom, Gary E. | A framework for module-based language processors | A system composed of interconnected modules is a module-based system. We present an object-oriented (0-0) framework for the development of processors for module-based systems, such as compilers for 0-0 languages, linkers/loaders, and tools for user/system libraries. We claim t h a t this framework,... | Language processors; Jigsaw; Module-based | 1993 |
| 2 |
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Michell, Nick | A gallium arsenide mutual exclusion element | A mutual exclusion element is a key component in building asynchronous and self-timed circuits. As part of our effort to design high performance self-timed circuits, we have designed a mutual exclusion element in gallium arsenide. This circuit has been fabricated in a 1.2? process and tested. A test... | Mutual exclusion element; Self-timed circuits | 1993 |
| 3 |
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Mathews, V. John | A stochastic gradient adaptive filter with gradient adaptive step size | Abstract-This paper presents an adaptive step-size gradient adaptive filter. The step size of the adaptive filter is changed according to a gradient descent algorithm designed to reduce the squared estimation error during each iteration. An approximate analysis of the performance of the adaptive fil... | | 1993 |
| 4 |
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Gopalakrishnan, Ganesh | A transformational approach to asynchronous high-level synthesis | Asynchronous high-level synthesis is aimed at transforming high level descriptions of algorithms into efficient asynchronous circuit implementations. This approach is attractive from the point of view of the flexibility it affords in performing high level program transformations on users' initial d... | High level synthesis tool; SHILPA | 1993 |
| 5 |
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Sobh, Tarek M. | Active inspection and reverse engineering | We propose a new design for inspection and reverse engineering environments. 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 dyn... | Discrete event dynamic systems; DEDS; Industrial inspection | 1993 |
| 6 |
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Mathews, V. John | Adaptive lattice bilinear filters | Abstract-This paper presents two fast least squares lattice algorithms for adaptive nonlinear filters equipped with bilinear system models. Bilinear models are attractive for adaptive filtering applications because they can approximate a large class of nonlinear systems adequately, and usually with... | | 1993 |
| 7 |
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Mathews, V. John | Adaptive phase transform processors for time delay estimation | This paper introduces two recursive realizations of the phase transform (PHAT) processor for time-delay estimation (TDE), using a simple one-pole low-pass filter and the least-mean-square (LMS) adaptive filter, respectively. It is shown that these adaptive methods are capable of tracking time-varyin... | | 1993 |
| 8 |
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Khoche, Ajay | An extended cell set of self-timed designs | The high level synthesis approach described in [1] uses hopCP[2] language for behavioral descriptions. The behavioral specifications are then translated into Hop Flow Graphs (HFGs). The actions in the graph are then refined such that refined actions can be directly mapped onto asynchronous circuit b... | Self-timed designs; hopCP; Hop Flow Graphs; Asynchronous circuit blocks; Action-blocks | 1993 |
| 9 |
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Sobh, Tarek M. | Analysis of tolerance for manufacturing geometric objects from sense data | In this work we address the problem of manufacturing machine parts from sense data. Constructing geometric models for the objects from sense data is the intermediate step in a reverse engineering manufacturing system. Sensors are usually inaccurate, providing uncertain sense information. We constr... | Manufacture | 1993 |
| 10 |
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Stevens, Kenneth; Davis, Alan L. | Automatic synthesis of fast compact self-timed control circuits | We present a tool called MEAT which has been designed to automatically synthesize transistor level. CMOS, self-timed control circuits. MEAT has been used to specify and synthesize self-timed circuits for a fully self-timed 300,000 transistor communication coprocessor. The design is specified using f... | | 1993 |
| 11 |
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Riloff, Ellen M. | Automatically constructing a dictionary for information extraction tasks | Knowledge-based natural language processing systems have achieved good success with certain tasks but they are often criticized because they depend on a domain-specific dictionary that requires a great deal of manual knowledge engineering. This knowledge engineering bottleneck makes knowledge-based ... | Information extraction; Dictionary construction; Knowledge-based systems; AutoSlog; Domain-specific dictionary | 1993 |
| 12 |
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Christensen, Douglas A.; Herron, James N. | Comparison of robust coupling techniques for planar waveguide immunosensors | We have analyzed and fabricated two different coupling schemes to meet the requirements for a convenient means of coupling into a planar waveguide immunosensor that is relatively insensitive to beam alignment. These are the "launch" coupler and the grating coupler. Each possesses advantages and dis... | Planar waveguide immunosensors; Fluorescence; Launch coupler; Grating coupler | 1993 |
| 13 |
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Stringfellow, Gerald B. | Compositional ordering in semiconductor alloys | Compositional ordering has been observed in a wide variety of III/V semiconductor alloys as well as in SiGe alloys. The thermodynamic driving force is now understood in terms of minimization of the microscopic strain energy of the bonds in the solid. However, the mechanism leading to the specific o... | Semiconductor alloys; Transmission-electron-diffraction pattern; Organometallic Vaper-phase epitaxy; Cathodoluminescence | 1993 |
| 14 |
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Sobh, Tarek M.; Henderson, Thomas C. | Concurrent engineering and robot prototyping | This report addresses the theoretical basis for building a prototyping environment for electromechanical systems using concurrent engineering approach. In Designing a robot manipulator, as an example of electro-mechanical systems, the interaction between several modules (S/W, VLSI, CAD, CAM, Robotic... | Robot prototyping | 1993 |
| 15 |
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Bruderlin, Beat | Constraint objects - integrating constraint definition and interaction | This paper describes the implementation of a new constraint-based technique for direct manipulation in interactive CAD. We introduce so called Constraint Objects and Parameter Objects which constitute an object-oriented view on constraints. A graph algorithm is employed to analyze the relative degr... | Constraint objects | 1993 |
| 16 |
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Hansen, Charles D. | Data distributed, parallel algorithm for ray-traced volume rendering | This paper presents a divide-and-conquer ray-traced volume rendering algorithm and a parallel image compositing method, along with their implementation and performance on the connection Machine CM-5, and networked workstations. This algorithm distributes both the data and the computations to individ... | Volume rendering; Ray tracing; ; Computer algorithms; Scientific visualization; Network computing; Massively parallel processing | 1993 |
| 17 |
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Hansen, Charles D. | Data distributed, parallel algorithm for ray-traced volume rendering | This paper presents a divide-and-conquer ray-traced volume rendering algorithm and a parallel image compositing method, along with their implementation and performance on the Connection Machine CM-5, and networked workstations. This algorithm distributes both the data and the computations to individ... | Volume rendering; Ray tracing; ; Computer algorithms; Scientific visualization; Network computing; Massively parallel processing | 1993 |
| 18 |
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Stevens, Kenneth | Designing parallel specifications in CCS | We describe a style of specifying concurrent systems based upon the parallel composition operatorof CCS and apply it to several asynchronous hardware examples. | | 1993 |
| 19 |
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Lepreau, Jay | DRAFT: work in progress - - - comments solicited evolving Mach 3.0 to use migrating threads | Like most operating systems, Mach 3.0 views threads as statically associated with a single task. An alternative model is that of migrating threads, in which a single thread abstraction moves between tasks with the logical flow of control, and "server" code is passively executed. We have compatibly r... | DRAFT | 1993 |
| 20 |
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Hansen, Charles D. | Fast data parallel polygon rendering | This paper describes a data parallel method for polygon rendering on a massively parallel machine. This method, based on a simple shading model, is targeted for applications which require very fast rendering for extremely large sets of polygons. Such sets are found in many scienti c visualization ap... | | 1993 |
| 21 |
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Mathews, V. John | Fast recursive least squares adaptive second-order volterra filter and its performance analysis | Abstract-This paper presents a fast, recursive least squares (RLS) adaptive nonlinear filter. The nonlinearity is modeled using a second-order Volterra series expansion. The structure presented in the paper makes use of the ideas of fast RLS multichannel filters and has a computational complexity of... | | 1993 |
| 22 |
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Sobh, Tarek M.; Henderson, Thomas C. | Intermediate results in active inspection and reverse engineering | In previous work [18], we have proposed a new design for inspection and reverse engineering environments. We have investigated the use of the dynamic recursive context of discrete event dynamic systems (DRFSM DEDS) to guide and control the active exploration and sensing of mechanical parts for indu... | Industrial inspection; Discrete event dynamic systems; DRFSM; DEDS | 1993 |
| 23 |
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Liu, Feng | Liu et al reply | In our Letter [1], we have demonstrated the plausibility of a structure for ?-cristobalite SiC2 consisting of domains of I Aid symmetry, and provided strong evidence against other proposed models, based on first-principles total energy and lattice dynamics calculations. We are pleased that the Auth... | beta-Cristobalite SiO2; Rigid unit modes; RUM; Transient domain formation | 1993 |
| 24 |
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Lindstrom, Gary E. | Modular language processors as framework completions | The conceptual and specificational power of denotational semantics for programming language design has been amply demonstrated. We report here on a language implementation method that is similarly semantically motivated, but is based upon object-oriented design principles, and results in flexible an... | Modular language processors; Denotational semantics; Framework completions | 1993 |
| 25 |
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Lindstrom, Gary E. | Modules as values in a persistent object store | We report on an object manager (OM) providing persistent implementations for C ++ classes. Our OM generalizes this problem to that of managing persistent modules, where the module concept is an abstract data type (ADT). This approach permits a powerful suite of module manipulation operations to be ... | Object manager; OM; Persistent object store | 1993 |
