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| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 1 |
 |
Boll, Steven F. | Application of the saber method for improved spectral analysis of noisy speech | A stand alone noise suppression algorithm is described for reducing the spectral effects of acoustically added noise in speech. A fundamental result is developed which shows that the spectral magnitude of speech plus noise can be effectively approximated as the sum of magnitudes of speech and noise.... | Noise suppression algorithm; SABER method | 1977 |
| 2 |
 |
Davis, A.L. | The architecture of DDMl: a recursively structured data driven machine | An architecture for a highly modular, recursively structured class of machines is presented. DDMl is an instance of such a machine structure, and is capable of executing machine language programs which are data driven (data flow) nets. These nets may represent arbitrary amounts of concurrency as wel... | DDMl; machine structure; machine language programs | 1977 |
| 3 |
 |
Lindstrom, Gary E. | Backtracking in generalized control settings | Backtracking is a powerful conceptual and practical technique in programming. However, its application in general has been limited to global control over recursive programs. In this paper we explore through several examples the coherence and utility of applying backtracking in more general control s... | Backtracking | 1977 |
| 4 |
 |
Lindstrom, Gary E. | CONSIM: a converstional simulation language implemented through interpretive control self-modeling | This paper describes an implementation technique termed interpretive control self-modeling (ICSM) and outlines its application in the implementation of CONSIM, a prototype conversational simulation language. ICSM may be defined as the use of a higher-level programming language (HLL) to specify its o... | CONSIM; Converstional simulation language; Interpretive control self-modeling; ICSM | 1977 |
| 5 |
 |
Keller, Robert M. | Denotational models for parallel programs with indeterminate operators | Several approaches to networks of concurrently-operating modules involving indeterminacy are discussed. Techniques for representing the denotational semantics of such networks, and for verifying properties of them, are presented, including an oracle approach, an axiomatic approach, a data-type reduc... | Denotational models; Indeterminate operators | 1977 |
| 6 |
 |
Dintelman, Sue Marie Thompson | Design and implementation of a relational data base system for a minicomputer | A data base system provides the advantages of centralized control of data including increased data independence. Design specifications for a low level relational data base interface are given in the form of a formal description which separates the implementation details from the description of the ... | Data base system | 1977 |
| 7 |
 |
Faugeras, Olivier Dominique | Digital color image processing and psychophysics within the framework of a human visual model | A three-dimensional homomorphic model of human color vision based on neurophysiological and psychophysical evidence is presented. This model permits the quantitative definition of perceptually important parameters such as brightness. saturation, huo and strength. By modelling neural interaction in t... | Human visual model; Neurophysiological evidence; Psychophysical evidence | 1977 |
| 8 |
 |
Lindstrom, Gary E. | Efficiency in nondeterministic control through non-forgetful backtracking | Nondeterministic (ND) control has long been used to express elegant solutions to complex search problems. Programs using ND control can be executed on conventional machines through a systematic examination of trial execution paths. Among the many approaches to the enumeration of these paths is backt... | Nondeterministic control; Non-forgetful backtracking; Search problems | 1977 |
| 9 |
 |
McDonald, Lee Edwin | Image recognition using generalized correlation | This paper investigates the use of generalized cross-correlation in pattern matching when the objects may be of one or two dimensions. Generalized correlation can be used to determine the amount of dilatation and rotation between a given template and an object, in addition to determining the relativ... | Image recognition; Generalized correlation | 1977 |
| 10 |
 |
Boll, Steven F. | Improving linear prediction analysis of noisy speech by predictive noise cancellation | The analysis of speech using Linear Prediction is reformulated to account for the presence of acoustically added noise and a technique is presented for reducing its effect on parameter estimation. The method, called Predictive Noise Cancellation (PNC), modifies the noisy speech autocorrelations ... | Linear prediction; Predictive Noise Cancellation; Noisy speech; Sppech analysis | 1977 |
| 11 |
 |
Brown, Bruce Eric | Modeling of solids for three-dimensional finite element analysis | The geometric modeling of solid objects is a major problem within the design analysis loop of the engineering design process. Models are analyzed by various computer programs to predict their performance. The format of each model is usually different for each analysis routine. The existence of sev... | Geometric modeling; Solid objects; Finite element analysis | 1977 |
| 12 |
 |
Boll, Steven F. | Noise suppression methods for robust speech processing (1 Oct. 1976 - 31 March 1977) | To develop robust speech processes, based upon the integration of digital noise suppression methods and narrow band speech analysis-synthesis methods, capable of realizing practical, real time methods for effectively processing speech recorded in practical operating environments. | Digital noise suppression | 1977 |
| 13 |
 |
Keller, Robert M. | Semantics of parallel program graphs | A denotational model for networks of parallel processes is presented which generalizes the work of Kahn by using alternative data types, e.g. Lisp-like operators on trees. It is shown that the ordering aspect of data types plays a central role in determining how much parallelism can be present. It i... | Parallel program graphs; Computer semantics; Denotational model | 1977 |
| 14 |
 |
Allen, Edgar S. | Sensory information processing (1 January 1976 - 30 June 1976) | The removal of the effects of atmospheric turbulence from optical images is a significant problem of long standing. Recent investigations by Knox and Thompson have led to the development of a restoration procedure which shows considerable promise. This procedure has not been successfully applied to ... | Removal; Atmospheric turbulence; Interference; Restoration procedure | 1977 |
| 15 |
 |
Allen, Edgar S. | Sensory information processing (1 July 1975 - 31 December 1975) | In the previous semi-annual report a new method was described for removing blur from photographic images. Several experiments are described here illustrating the effect of adjusting the cutoff frequency of filters used in the restoration scheme. | Blur; Photographic images; Restoration scheme | 1977 |
| 16 |
 |
Allen, Edgar S. | Sensory information processing (1 July 1976 - 31 March 1977) | The student of human visual perception is often overwhelmed by the vast amount of data that has been accumulated from experiments performed within the last century or so. It is often difficult to understand why a certain experiment has been performed.Results from similar experiments sometimes seem t... | Sensory information processing | 1977 |
| 17 |
 |
Stoller, Leigh B. | Shared memory as a basis for conservative distributed architectural simulation | This paper describes experience in parallelizing an execution-driven architectural simulation system used in the development and evaluation of the Avalanche distributed architecture. It reports on a specific application of conservative distributed simulation on a shared memory platform. Various comm... | Shared memory; Avalanche distributed architecture | 1977 |
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