Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 59 for “"Model representation"”.
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Design of a World-Wide Simulation Web
… distributed simulation environment whose use model parallels that of the World-Wide Web (WWW). The idea was developed from working with two generations of the Distributed Object-Modeling Environment (DOME). A design for the architecture of the WWSW is proposed. The specification for the WWSW …
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Boys will always be boys? The impacts of gender-based Affirmative Action and Role Models on competitiveness in the lab
… (gender-based Affirmative Action and Role Models) mitigate the gender differences in competitiveness. Although Affirmative Action has been explored in the literature, the longer-term implications of the preferential treatment creating role model representation have not been examined. …
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Nitrogen modeling of potato fields in the Bolivian Andes using GLEAMS
… was to assess the suitability of the GLEAMS model as a tool for evaluating fertilization and cropping system practices for potatoes in the Andes of central Bolivia, and make recommendations for the continued development of the model as an analysis tool to improve sustainable crop production. …
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Simulation modeling methodology: principles and etiology of decision support
Investigation in discrete event simulation modeling methodology has persisted for over thirty years. Fundamental is the recognition that the overriding objectives for simulation must involve decision support. Rapidly advancing technology is today exerting major influences on the course of …
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Probabilistic geometric grammars for object recognition
… presents a generative three-dimensional (3D) representation and recognition framework for classes of objects. The framework uses probabilistic grammars to represent object classes recursively in terms of their parts, thereby exploiting the hierarchical and substitutive structure inherent to …
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Development and Application of Pseudoreceptor Modeling
… These methods attempt to form a statistical model that relates descriptor properties of a ligand to the activity of that ligand compound towards a specific desired physiological response. QSAR methods are known as a ligand-based method, as they specifically use information from ligands and …
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3D Reconstruction of Building Interiors Using Point Clouds
The automatic modeling of as-built building interiors, known as indoor building reconstruction, is gaining increasing attention because of its widespread applications. With the development of sensors to acquire high-quality point clouds, a new modeling scheme called scan-to-BIM (building …
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Acoustic landmark detection and segmentation using the McAulay-Quatieri Sinusoidal Model
… algorithm using the McAulay-Quatieri Sinusoidal Model, in hopes of improving the performance of the recognizer in noisy conditions. We first discuss the sinusoidal model representation, in which rapid changes in spectral components are tracked using the concept of "birth" and "death" of …
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Conceptual frameworks for discrete event simulation modeling
… (CFs) for the design and implementation of a model. A literature review of CFs which are in common use is conducted. These CFs are applied to a complex modeling problem, a traffic intersection system. A comparative review of the CFs is given based upon the lessons learned from the above …
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THE USE OF ABSTRACTIONS IN MODEL MANAGEMENT.
The concept of a generalized model management System (GMMS) and its role in a decision support system are discussed. A paradigm for developing a GMMS which integrates artificial intelligence techniques with data management concepts is presented. The paradigm views a GMMS as a knowledge-based …
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Time series analysis of macroeconometric constructs
… persistence of economic shocks using time series models. First, it is shown that the log likelihood function for ARIMA models is not strictly quadratic with respect to the persistence estimate. This result explains why the persistence literature has attained conflicting results. In addition, …
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Developing a conceptual architecture for a generalized agent-based modeling environment (GAME)
… requires significant programmer expertise in model representation and implementation. This limits potential users and their ability to utilize the software. We develop a high level conceptual architecture for an agent-based modeling environment which overcomes this limitation. This thesis …
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Negotiation teams: The impact of caucusing and team accountability on interaction processes and outcomes
The model proposed here suggests that within-team processes in team negotiation moderate the effect of situational variables (e.g., accountability) on between-team negotiation processes. To test this model, representation structure (teams that caucus, teams that do not caucus, and solo negotiators) …
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Influence of Reading Proficiency on Text Representation in L1 and L2
… that readers construct multi-level text representation while reading. According to Van Dijk and Kintsch (1983), these are the surface level, textbase level, and situation model level. The current project aimed to explore the effects of reading proficiency on level of text representation …
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Efficient MCMC inference for material detection and classification In tomography
… the latent configuration as an intermediate representation. We use the framework of Probabilistic Inference to implement MCMC sampling of realizations of the latent configuration conditioned on the measurements. We exploit conditional-independence properties of the graphical-model …
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Viscoelastic characterization of angle ply advanced composites
… established for individual tests. Mechanical model representation, integral equation formulation and numerical integration methods based on linear viscoelasticity were used to predict constant strain rate and long time creep behavior of composites from nondestructive short time dynamic tests. …
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An Economic Impact Assessment of the Green Industry of Virginia
… data sources to create a more complete model representation of the green industry as a whole. Two separate model scenarios were created, the first using purely survey response data, the second including data from additional sources and factoring out for possible double-counting errors. …
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An approximate method for the transient response of nonlinear systems
… one of the most important is perhaps the model representation of the true structure. One method of representation is to judiciously idealize the structure into concentrated mass and to connect, each lumped mass to its neighbor by weightless springs and dashpots. The number of masses and …
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Uncertainty budgeting methods for conceptual aircraft design
… while also accounting for a cost budget. For models that are computationally costly to evaluate, a surrogate modeling approach based on high dimensional model representation achieves efficient computation of the sensitivities. Example problems in aircraft conceptual design illustrate the …
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Graphical models and message passing receivers for interference limited communication systems
… the assumption that noise in the system can be modeled as additive white Gaussian noise (AWGN). While appropriate for thermal noise, the AWGN model does not always capture the interference statistics in modern communication systems. Interference from uncoordinated users and sources is …
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