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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
381

A geotemporal framework for hydrologic analysis

Goodall, Jonathan Lee, Maidment, David R. January 2005 (has links) (PDF)
Thesis (Ph. D.)--University of Texas at Austin, 2005. / Supervisor: David R. Maidment. Vita. Includes bibliographical references.
382

Business process atomicity analysis supporting late task property bindings /

Lo, Yuet Mei. January 2005 (has links)
Thesis (M.Phil.)--Hong Kong University of Science and Technology, 2005. / Includes bibliographical references (leaves 85-87). Also available in electronic version.
383

A feasibility study of hillfire management in Hong Kong Country Parks using GIS analysis /

Chan, Wu-wah, Elaine. January 2005 (has links)
Thesis (M. Sc.)--University of Hong Kong, 2005.
384

Application-aware resource scheduling /

Carney, Donald P. January 2005 (has links)
Thesis (Ph.D.)--Brown University, 2005. / Vita. Thesis advisor: Stan Zdonik. Includes bibliographical references (leaves 115-120). Also available online.
385

Spatial Aspects of Metaphors for Information: Implications for Polycentric System Design

Schroeder, Paul Charles January 2003 (has links) (PDF)
No description available.
386

The use of System Dynamics simulation models in project management education

Ahmed, Heba Saleh January 2016 (has links)
This thesis explores the impact of using System Dynamics (SD) as a simulation tool to help learners understand complex, dynamic concepts in project management education, and specifically with the learning of the theory associated with Earned Value Management (EVM). SD simulation models have been used widely but mainly in business contexts to support managers in the decision making process. However the application of SD in the field of project management education has been limited and particularly in terms of assessing its potential impact to help improve learners’ skills and understanding about project management concepts. ‘Projects’ are considered to be complex information feedback systems, characterized by causality and underlying dynamic relations between multiple variables, and the ability of junior project managers to apply and experience higher practical skills in the management of these complex systems presents a real challenge in the higher education context. The ability of SD to simulate the behaviour of a system, to reveal the underlying relationships, and to help visualize its dynamic changes over time, makes SD a potential modelling tool to help supporting the learners in the project management education area. This study sets out to evaluate the use of SD in an instructional context to help postgraduate project management students to visualize and to more understand the complex dynamic relationships in the concept of EVM, a topic that features significantly in project management education. In this study, SD was deployed to teach EVM through a series of computer based models to visualize changes of multiple interacting variables over time. The SD simulations were evaluated and improved in a series of pilot and formal studies. In an experimentally controlled study involving 46 students, EVM content was delivered with SD simulations and using traditional methods respectively. Results, both quantitative and qualitative, demonstrated a positive impact of SD on the learning of the EVM concept. Recommendations of further work to deploy SD in the delivery of complex project management content and other challenging topics, with wider pool of learners are discussed.
387

An intelligent form system

Liu, Heyun January 1992 (has links)
This thesis presents an investigation of developing a user-centred formbase system. It is based on the previous developments in Office Information Systems. It is technically related to AI Planning Systems and Database Systems. An Office System is an open system inside which the data, as well as the operations upon the data can not be pre-defined exactly. In order to set up a stable and flexible information system in such environments, the task representation, activity representation and data representation must be dynamically related to each other. This research concerns how to use AI planning system concepts to develop a formbase system. There are three crucial aspects: (a) how to represent an activity of information processing, (b) how to represent and refer to the data in the forms, and (c) how to construct the problem solving process for the task of information processing. For reasons of flexibility and stability in the open environment, it is important that a proper link between data representation and activity representation is achieved. This research has generated an Intelligent Form System. The contributions are: (a) the development of a form pattern language and the formbase which can represent and refer to the forms, (b) the identification of the formbase activity schema which can represent the activity upon the forms, and (c) the development of a problem solving process for the information processing tasks of the forms. The research has also recognized that the information processing activities upon forms are very different from the activities which are automatically performed by the Humans. Key Words: Office Information Systems; AI Planning Systems; Activity Representation; Action Reasoning; Knowledge Representation; Office Form Systems.
388

An evaluation of online GIS-based landscape and visual impact assessment tools and their potential for enhancing public participation in wind farm planning in the UK

Berry, Robert January 2009 (has links)
Effective information communication and public participation in the planning process are important elements for facilitating successful environmental decision-making. Previous research has demonstrated the importance of such factors for delivering benefits to a wide range of stakeholders in the planning system by increasing the transparency and efficiency of the planning process. Given the current problems facing onshore wind farm planning in the UK there is an urgent need to investigate alternative approaches for enhancing the quality of information dissemination and public participation in the planning process. Planning information relating to the potential visual impacts of wind farms is particularly important in the case of the wind farm planning, given the high levels of concern amongst members of the public regarding the perceived negative visual impact of proposed wind turbines on the landscape. However, shortcomings associated with traditional techniques used to assess such impacts have been highlighted in previous research, along with drawbacks related to the dissemination of such information to the public during the planning stages of wind farm development. This has been shown to affect the overall quality of public participation in the planning process. This research is concerned with evaluating the potential of innovative digital landscape visualisation and Internet-based techniques for addressing some of the shortcomings in these areas. This thesis describes the implementation of two survey studies designed to meet these objectives. The first study uses a postal questionnaire approach in order to determine the current 'state-of-play' regarding the levels of use of such innovative techniques for improving impact assessment and information dissemination in wind farm planning. In addition to a review of the existing literature, the findings of the survey provide further rationale for conducting the second (Internet-based) survey study, designed to evaluate the potential of online visualisation-based approaches for improving the quality and dissemination of visual information, and enhancing public participation in wind farm planning. The survey is based on visualisations created for an actual proposed wind farm development in South Wales, UK. The findings reinforced much of the existing research literature, confirming that innovative visualisation and Internet-based approaches do have good potential for augmenting existing methods of visual information creation, dissemination and public participation although a variety of observations and concerns were raised by survey respondents that highlighted the potential limitations of such approaches. Further avenues for research are then identified.
389

A unified spatial data structure for GIS

Dakowicz, Maciej January 2009 (has links)
Most GIS systems use separate thematic "layers" to store different types of spatial data. Each of them contains specific characteristics of the area, so there are separate layers for the distribution of buildings, the road network or the relief of the terrain. The spatial information used in GIS can be grouped into four main groups: polygonal maps, terrain models, networks and discrete, unconnected objects. Polygonal maps and terrain models are considered to be "field" models of space, covering the whole map, so there is some kind of information available at every location. On the other hand, networks and discrete objects are representations of the "object" model of space, in which the map is populated by entities and the space between them is empty. Choropleth maps are the most common examples of polygonal maps and the three main representations of terrain models are Triangular Irregular Networks (TINs), grids and contour lines. Networks consist of connected edges, while discrete objects can be points, lines or polygons. In networks, polygonal maps and surfaces there is some model of connectivity available. Polygons are adjacent to each other, as are the elements in terrain models. Network data is connected along the edges and junctions are defined. Unconnected objects need have no connectivity information, but in that case the possible spatial queries are limited. The layers can be stacked on top of each other to perform various operations and analyses on them. However, there is no consistent method applicable to all data types because GIS has traditionally separated field and object layers and used different data structures to represent them. This thesis presents a unified spatial data model for these most common types of spatial information and intends to show that it has clear advantages for geographical analysis. The idea is to represent discrete object models as fields, so there is information available at all locations. The model is based on the Voronoi Diagram (VD) and the dual Delaunay Triangulation (DT), two well studied geometric structures. Depending on the application it may be appropriate to represent the data on the map by the simple VD/DT, or their derivatives - the Constrained DT (CDT), the Line Segment VD (LSVD) or the crust and the skeleton. All of these are directly related to each other and may be handled in a single manner in the computer. Algorithms and the storage of these various forms of the VD using the quad-edge data structure is described. This structure may be updated locally, and dynamic algorithms for each of these representations are presented. This allows for the development of a common interactive framework for what are traditionally considered to be distinct data types. The unified model is illustrated by a variety of GIS applications, and the implementation of several traditional GIS operations and queries is discussed.
390

Provision of better VLE learner support with a Question Answering System

Stamoulos, Marios Nikolaos January 2016 (has links)
The focus of this research is based on the provision of user support to students using electronic means of communication to aid their learning. Digital age brought anytime anywhere access of learning resources to students. Most academic institutions and also companies use Virtual Learning Environments to provide their learners with learning material. All learners using the VLE have access to the same material and help despite their existing knowledge and interests. This work uses the information in the learning materials of Virtual Learning Environments to answer questions and provide student help by a Question Answering System. The aim of this investigation is to research if a satisfactory combination of Question Answering, Information Retrieval and Automatic Summarisation techniques within a VLE will help/support the student better than existing systems (full text search engines).

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