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  • Information foraging in debugging

    Creator:
    Lawrance, Joseph A.
    Abstract:
    Programmers spend a substantial fraction of their debugging time by navigating through source code, yet little is known about how programmers navigate. With the continuing growth in size and complexity of software, this fraction of time is likely to increase, which presents challenges to those seeking both to understand and...
    Resource Type:
    Dissertation
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    theory. Chapter 3 describes how information foraging theory relates to prior research into the

  • Designing and understanding information retrieval systems using collaborative filtering in an academic library environment

    Creator:
    Jung, Seikyung
    Abstract:
    Accessing information on the Web has become ingrained into our daily lives, and we seek information from many different sources, including conference and journal publications, personal web pages, and others. Increasingly, web-based information retrieval systems such as web-based search engines, library on-line catalog systems, and subscription-based federated search systems are...
    Resource Type:
    Dissertation
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    Computer Science presented on May 25, 2007. Title: Designing and Understanding Information

  • Automated web-based analysis and visualization of spatiotemporal data

    Creator:
    Keon, Dylan B.
    Abstract:
    Most data are associated with a place, and many are also associated with a moment in time, a time interval, or another linked temporal component. Spatiotemporal data (i.e., data with elements of both space and time) can be used to assess movement or change over time in a particular location,...
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    Dissertation
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    of processing and analyzing spatial information, most contain no (or minimal) features for handling

  • A GIS approach to estimating continuous hydraulic conductivity and equivalent hydraulic conductivity

    Creator:
    Arras, Tracy Lynn
    Abstract:
    Estimating the hydraulic conductivity of earth materials is important for many water resource modeling efforts, including predicting the transport of pollutants in ground water, computing surface runoff for flood control, and computing water budgets. This research implicitly used topography, soil, and climate data to estimate plausible continuous hydraulic conductivity values...
    Resource Type:
    Dissertation
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    geographic information system (GIS) approach are plausible. Manuscript 1 investigated the effects of

  • Understanding and improving error-correcting output coding

    Creator:
    Kong, Eun Bae
    Abstract:
    Error-correcting output coding (ECOC) is a method for converting a k-classsupervised learning problem into a large number L of two-class supervised learningproblems and then combining the results of these L evaluations. Previous researchhas shown that ECOC can dramatically improve the classi cation accuracy of supervisedlearning algorithms that learn to classify...
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    Dissertation
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    algorithm in splitting the feature space. ECOC is also extended to provide class probability information

  • Proximity theory and information-system acquisition techniques

    Creator:
    Huber, Jerry W.
    Abstract:
    STATEMENT OF THE PROBLEM Document-based educational information systems require systematic acquisition efforts that must be conscientiously undertaken to build an information system and to keep it current. These acquisition efforts can be influenced by several variables. The major thrust of this research was to investigate one of these variables, namely...
    Resource Type:
    Dissertation
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    programs, dial-access information retrieval 3 systems, and, of course, teacher prepared materials have

  • Multi-factor information theory models and their industrial applications

    Creator:
    Shirland, Larry Elwyn
    Abstract:
    This dissertation treats information theory and its applications to the general area of decision making. Specifically, three areas are covered; (1) information theory applied to Bayesian analysis, (2) estimation using multi-factor information channel models, and (3) information theory applied to Markov chain analysis. A major portion of this dissertation concerns...
    Resource Type:
    Dissertation
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    Bayesian analysis, (2) estimation using multi-factor information channel models, and (3) information

  • Observability and information structure of nonlinear systems

    Creator:
    Hwang, Chun Sik
    Abstract:
    An observability problem for both deterministic and stochastic systems is studied here. Deterministic observability is a determination of whether every state of the system is connected to the observation mechanism and how it is connected, if connected. On the other hand, stochastic observability discusses the "tightness" of the connection in...
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    Dissertation
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    ) and array SONAR tracking examples 42 Ch 3. Information theoretic observability of stochastic

  • Biogeochemical signals of mountainous forested watersheds' response to disturbance

    Creator:
    Guerrero-Bolaño Francisco J.
    Abstract:
    Small mountainous watersheds are disproportionate sources of land-derived particulate organic matter (POM) to long-term sinks like lake bottoms and the ocean. As such, these ecosystems are an essential component of the global carbon cycle. The burial of POM in lacustrine and marine sediments contributes to the drawdown of atmospheric CO2...
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    Dissertation
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    . Lastly, we calculated spectral entropies and the information content of particle size spectra from a

  • Determination of geographic information system database characteristics : an application of the information integration theory

    Creator:
    Brooks, Kris
    Abstract:
    The development of a geographic information system (GIS) requires the development of large databases of spatially related information. Scale, resolution and the classification of thematic data can vary considerably in terms of the level of detail at which the data are compiled and converted to machine readable form. The level...
    Resource Type:
    Dissertation
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    the Problem 3 Research Objectives, Design and Procedures 3 2. GEOGRAPHIC INFORMATION SYSTEM DESIGN