Digital Commons Network^™

Evaluation Of Artificial Intelligence Based Models For Chemical Biodegradability Prediction, James R. Baker, Dragan Gamberger, James R. Mihelcic, Aleksandar Sabljic

Michigan Tech Publications

This study presents a review of biodegradability modeling efforts including a detailed assessment of two models developed using an artificial intelligence based methodology. Validation results for these models using an independent, quality reviewed database, demonstrate that the models perform well when compared to another commonly used biodegradability model, against the same data. The ability of models induced by an artificial intelligence methodology to accommodate complex interactions in detailed systems, and the demonstrated reliability of the approach evaluated by this study, indicate that the methodology may have application in broadening the scope of biodegradability models. Given adequate data for biodegradability of …

Algorithms And Data Structures For Automated Change Detection And Classification Of Sidescan Sonar Imagery, Marlin Gendron

University of New Orleans Theses and Dissertations

During Mine Warfare (MIW) operations, MIW analysts perform change detection by visually comparing historical sidescan sonar imagery (SSI) collected by a sidescan sonar with recently collected SSI in an attempt to identify objects (which might be explosive mines) placed at sea since the last time the area was surveyed. This dissertation presents a data structure and three algorithms, developed by the author, that are part of an automated change detection and classification (ACDC) system. MIW analysts at the Naval Oceanographic Office, to reduce the amount of time to perform change detection, are currently using ACDC. The dissertation introductory chapter gives …

Gml Represntation For Interoperable Spatial Data Exchange In A Mobile Mapping Application, Venu Madhav Singh Kanaparthy

Theses and Dissertations

Geographic information is critical to GIS applications located remotely for executing business operations. GIS applications need to interoperate to be able to share information for analysis and decision making process. Heterogeneity and complexity of information models and structures limit the data flow and application interoperation. Advancements in Internet technologies provided new opportunities for delivering spatial information to remote users. However, spatial data delivered is in proprietary structures, limiting the utility to GIS applications. To enable information flow between GIS applications a portable data modeling approach is necessary. However, geographic information is inherently complex to model. A comprehensive and standardized vocabulary …

A Hybrid Model For Dtm Generation From Lidar Data, Hyun Seung Lee

Theses and Dissertations

This dissertation introduces an innovative technique to extract ground elevation models using smallootprint LIDAR data. This technique consists of a preprocessing step, ground modeling, and interpolation. In the preprocessing step, much of the non-terrain points are eliminated using a histogram-based clustering technique. Then, in the ground modeling stage, the information such as elevation and slope between nearest neighbor points is extracted. This step corresponds to an outlier detection process. In this stage, residuals and gradient indices for elevation and slope, are introduced. These indices are investigated for a constructed 95% confidence interval to discard the remaining non-terrain points. Finally, using …

Digital Government: Knowledge Management Over Time-Varying Geospatial Datasets, Peggy Agouris, Mary-Kate Beard-Tisdale, Anthony Stefanidis Editor

University of Maine Office of Research Administration: Grant Reports

Spatially-related data is collected by many government agencies in various formats and for various uses. This project seeks to facilitate the integration of these data, thus providing new uses. This will require the development of a knowledge management framework to provide syntax, context, and semantics, as well as exploring the introduction of time-varying data into the framework. Education and outreach will be part of the project through the development of an on-line short courses related to data integration in the area of geographical information systems. The grantees will be working with government partners (National Imagery and Mapping Agency, the National …

Atrazine Runoff In The Blue River Basin: Geomorphology, Rainfall, And Agronomic Practices, Kundan Dhakal

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Atrazine concentrations in the Big Blue River Basin (BRB) in Nebraska and Kansas periodically exceed the U.S. EPA Maximum Contaminant Level (MCL) of 3 µg L^-1. The present study is focused on watershed variables influencing surface runoff of atrazine. The assessment includes the impact of corn and sorghum planting progress (indicating atrazine application), rainfall, antecedent soil water content, and soil restrictive layer on stream-measured weekly atrazine load in independent BRB subwatersheds for 1997 - 2004. Maximum atrazine loading occurred after most of the corn had been planted but during sorghum planting from mid-May to early June, immediately following …

Volume 24, Number 4, December 2004 Olac Newsletter, Jain Fletcher, Jan Mayo, Jay Weitz, Barbara Vaughan

OLAC Newsletters

Digitized December 2004 issue of the OLAC Newsletter.

Bradford Lee Eden's Innovative Redesign And Reorganization Of Library Technical Services: Paths For The Future And Case Studies, Ellen T. Mcgrath

Law Librarian Book Reviews

No abstract provided.

Building Bridges Between Community Based Organizations And Technology: Exploring Tools For Community Participation And Economic Development For The Dudley Street Neighborhood Initiative, Michelle M. Thompson Phd, Gisp, Leila Aman, E.J. Neafsey, Anna Karwowska, Kyu-Sang (Josh) Lee, Jason Luger, Julienne Chen

Planning and Urban Studies Reports and Presentations

Technology plays a vital role in public and private businesses, governments, and organizations, and can be especially useful to organizations that may know the least about it. Unfortunately, many Community Based Organizations (CBOs) have traditionally been unable to embrace contemporary tools due to lack of capacity, time or money. This paper begins to identify issues related to the technology gap faced by CBOs in a case study that examines community economic empowerment for the Dudley Street Neighborhood Initiative® (DSNI). The problem was approached through a community-university partnership between the Cornell University CRP 607 GIS Workshop Class (Sibley Consulting) and DSNI. …

Context-Specific Preference Learning Of One Dimensional Quantitative Geospatial Attributes Using A Neuro-Fuzzy Approach, Georgios Mountrakis

Electronic Theses and Dissertations

Change detection is a topic of great importance for modern geospatial information systems. Digital aerial imagery provides an excellent medium to capture geospatial information. Rapidly evolving environments, and the availability of increasing amounts of diverse, multiresolutional imagery bring forward the need for frequent updates of these datasets. Analysis and query of spatial data using potentially outdated data may yield results that are sometimes invalid. Due to measurement errors (systematic, random) and incomplete knowledge of information (uncertainty) it is ambiguous if a change in a spatial dataset has really occurred. Therefore we need to develop reliable, fast, and automated procedures that …

Generating Linear Orders Of Events For Geospatial Domains, Suzannah Hall

Electronic Theses and Dissertations

Events in the world do not occur in neat chronological order, but may take place, for example, during or overlapping each other, or as simultaneous events. Efficient summaries of real-world events are important in many disciplines and require events to be modeled in a linear fashion. This thesis focuses on modeling events as intervals and using relations between the events to derive linear orders from more complex partially ordered sets. A method is developed for mapping Allen's thirteen temporal relations to only two relations, before and equals, which allow a linear ordering of all events present in the set. This …

Using Linear Features For Aerial Image Sequence Mosaiking, Caixia Wang

Electronic Theses and Dissertations

With recent advances in sensor technology and digital image processing techniques, automatic image mosaicking has received increased attention in a variety of geospatial applications, ranging from panorama generation and video surveillance to image based rendering. The geometric transformation used to link images in a mosaic is the subject of image orientation, a fundamental photogrammetric task that represents a major research area in digital image analysis. It involves the determination of the parameters that express the location and pose of a camera at the time it captured an image. In aerial applications the typical parameters comprise two translations (along the x …

Ecological Inventory Of The Cocheco River Watershed And The Follet’S Brook Watershed, Zankel, M, Mark Zankel

PREP Reports & Publications

No abstract provided.

A Watershed-Based Classification System For Lakes In Agriculturally-Dominated Ecosystems: A Case Study Of Nebraska Reservoirs, Henry N. N. Bulley

Department of Geography: Dissertations, Theses, and Student Research

In recent decades substantial progress has been made in improving the quality of surface waters in the United States (Hawkins et al., 2000; EPA, 2000; EPA, 2001); nevertheless, much work remains to be done in assessing the state of impairment of lake waters. Impairment implies that the existing water quality of a lake, as measured by selected criteria (e.g., nitrogen, phosphorus, chlorophyll-a, Secchi depth), exceeds a threshold value or standard that presumably reflects optimal attainable lake water quality conditions (or "reference" conditions) (Hughes, 1995; EPA, 2000; EPA, 2001). Such impaired waters are not suitable for designated uses such as drinking, …

Distribution Of Chemistry And Sexual Fecundity In The Lichenized-Fungi, Xanthoparmelia Cumberlandia And Xanthoparmelia Coloradoensis On Boulder Mountain, Aquarius Plateau, Ut, Heather Bird Jackson

Theses and Dissertations

Three aspects of Xanthoparmelia cumberlandia and Xanthoparmelia coloradoënsis populations found at two elevations are explored: clustering of secondary chemicals and the resulting implications for taxonomic distinctions, the usefulness of thallus size as an indirect measure of sexual fecundity, and the frequency of sexual reproduction.

First, we use clustering of 46 chemicals produced by X. cumberlandia and X. coloradoënsis to evaluate the adequacy of the current taxonomic distinction between them. Using principal components analysis and UPGMA, we find that the currently recognized species boundaries indicated by the presence of stictic acid in X. cumberlandia and salazinic acid in X. coloradoënsis are …

Supporting Field Study With Personalized Project Spaces In A Geographical Digital Library, Ee Peng Lim, Aixin Sun, Zehua Liu, John Hedberg, Chew-Hung Chang, Tiong-Sa Teh, Dion Hoe-Lian Goh, Yin-Leng Theng

Research Collection School Of Computing and Information Systems

Digital libraries have been rather successful in supporting learning activities by providing learners with access to information and knowledge. However, this level of support is passive to learners and interactive and collaborative learning cannot be easily achieved. In this paper, we study how digital libraries could be extended to serve a more active role in collaborative learning activities. We focus on developing new services to support a common type of learning activity, field study, in a geospatial context. We propose the concept of personal project space that allows individuals to work in their personalized environment with a mix of private …

Design Lessons On Access Features In Paper, Yin-Leng Theng, Dion Hoe-Lian Goh, Ming Yin, Eng-Kai Suen, Ee Peng Lim

Research Collection School Of Computing and Information Systems

Using Nielsen's Heuristic Evaluation, this paper reports a user study with six usability-trained subjects to evaluate PAPER's access features in assisting users to retrieve information efficiently, part of an on-going design partnership with stakeholders and designers/developers. PAPER (Personalised Adaptive Pathways for Exam Resources) is an improved version evolving from an earlier implementation of GeogDL built upon G-Portal, a geospatial digital library infrastructure. After two initial evaluations with student and teacher design partners, PAPER has evolved into a system containing a new bundle of personalized, interactive services with four modules: mock exam; personal coach (practice and review); trend analysis and performance …

Maine Campus November 18 2004, Maine Campus Staff

Maine Campus Archives

No abstract provided.

Design How-To-Know: Towards A Domain-Specific Ontology., Frances Joseph

DRS Biennial Conference Series

The title of this paper implies a repositioning of the notion of ‘design know how’ as tacit knowledge developed through practical experience into a questioning of the identity and being of design. This is not to valorise one form of knowing (through practice) over another (through cognition), but to imply a certain fuzziness about the definition, purpose and meaning of design. While this paper addresses issues of design, ontology and computation in relation to certain philosophical and theoretical positions, it is important to emphasise that my engagement comes from a practical involvement and concern with ‘design problems’ arising from the …

The Free Press Vol 36, Issue 10, 11-15-2004, John Bronson

Free Press, The

USM creates new designated smoking areas -- "Sorry, everybody. We tried" -- Ambassador Charles Dunbar addresses World Affairs Council of Maine:Less on what’s upcoming, more on what needs to be done -- Behold the blog: the internet’s role in Election 2004 -- USM faculty senate votes down chancellor motion -- USM community could use more student involvement -- $100,000 donated to new Muskie building

Washington University Record, November 12, 2004

Washington University Record

No abstract provided.

Ex. 281-Us-413, Craven Consulting Group

Hedden-Nicely Collection, All

A report of the Klamath Basin Fish Screen Inventory, Wood River Subbasin.

Ex. 281-Us-413, Craven Consulting Group

In re Klamath River (Klamath Tribe)

A report of the Klamath Basin Fish Screen Inventory, Wood River Subbasin.

Developing Articulation Agreements - Presentation Notes, Hank Lehrer, Brent D. Bowen

Tribal College / School Articulation Agreements

Developing Articulation Agreements - Tribal Colleges and Universities, Geospatial Curriculum Conference -11/28/2004 - Presentation Notes.

Developing Articulation Agreements - Slides, Hank Lehrer, Brent D. Bowen

Tribal College / School Articulation Agreements

Developing Articulation Agreements - Tribal Colleges and Universities, Geospatial Curriculum Conference -11/28/2004 - Slides

California State Information Technology Strategic Plan 2004, Office Of The State Chief Information Officer

California Agencies

No abstract provided.

Rule-Based And Case-Based Reasoning In Housing Prices, Gabrielle Gayer, Itzhak Gilboa, Offer Lieberman

Cowles Foundation Discussion Papers

People reason about real-estate prices both in terms of general rules and in terms of analogies to similar cases. We propose to empirically test which mode of reasoning fits the data better. To this end, we develop the statistical techniques required for the estimation of the case-based model. It is hypothesized that case-based reasoning will have relatively more explanatory power in databases of rental apartments, whereas rule-based reasoning will have a relative advantage in sales data. We motivate this hypothesis on theoretical grounds, and find empirical support for it by comparing the two statistical techniques (rule-based and case-based) on two …

Cmg Training In Spatio-Temporal Statistical Analysis Of Multi-Platform Ocean Optical Observations, Mary Jane Perry

University of Maine Office of Research Administration: Grant Reports

This project will be a five-week summer school on the topic of spatio-temporal statistical analysis and its application to multi-platform, multi-sensor bio-optical oceanic data. The summer school seeks to address some of the analysis challenges anticipated as the Integrated Ocean Observing System is established. These are associated with the very diverse range of spatial and temporal sampling afforded by the different components of such a system and contemporaneous process experiments. Statistical experts in spatial information engineering with experience in collaboration with ocean scientists will discuss some of the modern tools for statistical analysis of such data and associated challenges, while …

The Next Edition Of Iho-S-57 (4.0): A Primer, Lee Alexander

Center for Coastal and Ocean Mapping

The International Hydrographic Organization (IHO) is an intergovernmental consultative and technical organization that was established in 1921 to support the safety of navigation and the protection of the marine environment. IHO Special Publication 57 (IHO S-57) is the IHO Transfer Standard for Digital Hydrographic Data. It is the standard to be used for the exchange of digital hydrographic data between hydrographic offices (HOs), and for the distribution of hydrographic data to manufacturers, mariners and other data users (e.g., GIS). It was developed so that the transfer all forms of hydrographic data would take place in a consistent and uniform manner. …

A Mosquito In The Ointment: Adverse Hipaa Implications For Health-Related Remote Sensing Research And A "Reasonable" Solution, Paul M. Secunda

Faculty Publications

No abstract provided.