Physical Sciences and Mathematics Commons^™

Image-Based Change Detection Using An Integrated Spatiotemporal Gazetteer, Georgios Mountrakis

Electronic Theses and Dissertations

This thesis addresses image-based change detection. Motivation was provided by the lack of algorithms that incorporate in their solution diverse types of pre-existing and complementary information and have the ability to interact with a spatiotemporal environment. The main differentiation with our approach is that we develop our algorithm within an integrated spatiotemporal environment and we make use of all change evidence that might exist within that environment. In addition, a change resolution model is developed that will distinguish meaningful changes based on user requirements. A model for change is proposed that establishes a general framework for the incorporation of image …

Ria: Selecting Information To Include In Cooperative Task — Oriented Dialogues, Elise H. Turner

University of Maine Office of Research Administration: Grant Reports

The goal of this project was to delevop a technique for selecting information to volunteer in problem solving dialogues. The technique was to create usefulness ratings for information based on the problem solving of the agent that may communicate the information. Heuristics translate specific problem solving activities into contributions to the overall usefulness rating for the information. To this end, our objectives included determining the type of information that should be included in dialogues and implementing heuristics.

Using Raster Sketches For Digital Image Retrieval, James Carswell

Electronic Theses and Dissertations

This research addresses the problem of content-based image retrieval using queries on image-object shape, completely in the raster domain. It focuses on the particularities of image databases encountered in typical topographic applications and presents the development of an environment for visual information management that enables such queries. The query consists of a user-provided raster sketch of the shape of an imaged object. The objective of the search is to retrieve images that contain an object sufficiently similar to the one specified in the query. The new contribution of this work combines the design of a comprehensive digital image database on-line …

Concurrency Issues In Programmable Brick Languages, Gilliad E. Munden

Electronic Theses and Dissertations

Abstract

The programmable brick constitutes a domain for simple, autonomous robotics geared towards novice programmers in a constructionist setting. A large number of languages have been adapted from other domains to serve as a programming platform for this brick. However, there has yet to be an in-depth analysis of how these languages fit this domain. This work provides such an analysis of the existing brick languages in order to identify how they deal with the issue of concurrency as it relates to the brick. First, the brick domain is characterized and the languages involved are described. Second, the different approaches …