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  • Understanding the Effects of Online Paywalls on Information Access

    Creator:
    Shah, Sneha
    Abstract:
    At the start of the public’s use of the internet in 1983, whatever news made it online was expected to be open and free of charge. However, the idea that news should always be accessible online changed as newspapers moved most of their content online and needed online subscriptions to...
    Resource Type:
    Honors College Thesis
    Full Text:
    1:The Financial Times trial period information Soft paywalls allow for freely available content

  • On feature relevance feedback methods : incorporating labeled user features

    Creator:
    Oberst, Ian
    Abstract:
    In text classification, labeling features is often less time consuming than labeling entire documents. In situations where very little labeled training data is available, feature relevance feedback has the potential to dramatically increase classification performance. We review previous work on incorporating feature relevance feedback in the form of labeled features...
    Resource Type:
    Masters Thesis
    Full Text:
    contribution of 1−G by the cosine similarity of xq and xi, using more information from G as the similarity of

  • Selected elements and organic chemicals in bed sediment and fish tissue of the Tualatin River Basin, Oregon, 1992-96

    Creator:
    Bonn, Bernadine A., Washington County (Or.). Unified Sewerage Agency., and Geological Survey (U.S.)
    Abstract:
    The U.S. Geological Survey (USGS) has worked cooperative with the Unified Sewerage Agency of Washington County (USA) since 1990 to assess water quality in the Tualatin River Basin. The objectives of this study were to: assess the occurrence and magnitude of trace element and selected organic contaminants in streams of...
    Resource Type:
    Technical Report

  • 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
    Full Text:
    ............................................................................................................... 1 2 Introduction to Information Foraging Theory

  • Using provenance to aid document re-finding

    Creator:
    Lonsdale, Heather
    Abstract:
    In the field of Human-Computer Interaction, provenance refers to the complete history and genealogy of a document. Provenance can be useful in identifying related resources, such as different versions of the same document or resources used in the creation of a new document. Though methods of provenance collection and applications...
    Resource Type:
    Masters Thesis
    Full Text:
    sector as “(1) those engaged in producing and distributing information and cultural products; (2) those

  • A BIM-based Simulation Framework for Fire Evacuation Planning

    Creator:
    Sun, Qi
    Abstract:
    Fire hazards threaten human life and property safety. Since it is unrealistic to study human behavior during a real fire hazard, computational tools are a better choice to computational tools are a better choice to simulate fire growth and human behavior for predicting evacuation performance in chaotic emergency situations. Although...
    Resource Type:
    Masters Thesis
    Full Text:
    results. The objectives of this thesis are to investigate the reliabilities of (1) using BIM to offer

  • Puget Sound Exhaust Gas Cleaning System (EGCS) Washwater Ecological Risk Assessment

    Creator:
    Word, Jay, Wang, Dayang (Cindy), McGrath, Joy, and Stubblefield, William
    Abstract:
    Beginning in 2020, the International Maritime Organization International Convention for the Prevention of Pollution from Ships (MARPOL) required vessels to comply with new sulfur air emission standards in Sulphur Emission Control Areas (Baltic Sea, North Sea, and off the coasts of the US and Canada) by: 1) using 0.1% sulfur...
    Resource Type:
    Technical Report
    Full Text:
    Report

  • 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
    Full Text:
    an Academic Library Environment 1. GENERAL INTRODUCTION Finding and using information has

  • 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,...
    Resource Type:
    Dissertation
    Full Text:
    of processing and analyzing spatial information, most contain no (or minimal) features for handling

  • 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...
    Resource Type:
    Dissertation
    Full Text:
    algorithm in splitting the feature space. ECOC is also extended to provide class probability information