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Theses/Dissertations

Physical Sciences and Mathematics

2014

Articles 1 - 6 of 6

Full-Text Articles in Library and Information Science

#Mplp: A Comparison Of Domain Novice And Expert User-Generated Tags In A Minimally Processed Digital Archive, Edward A. Benoit Iii Aug 2014

#Mplp: A Comparison Of Domain Novice And Expert User-Generated Tags In A Minimally Processed Digital Archive, Edward A. Benoit Iii

Theses and Dissertations

The high costs of creating and maintaining digital archives precluded many archives from providing users with digital content or increasing the amount of digitized materials. Studies have shown users increasingly demand immediate online access to archival materials with detailed descriptions (access points). The adoption of minimal processing to digital archives limits the access points at the folder or series level rather than the item-level description users' desire. User-generated content such as tags, could supplement the minimally processed metadata, though users are reluctant to trust or use unmediated tags. This dissertation project explores the potential for controlling/mediating the supplemental metadata from …

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Using The Web 1t 5-Gram Database For Attribute Selection In Formal Concept Analysis To Correct Overstemmed Clusters, Guymon Hall May 2014

Using The Web 1t 5-Gram Database For Attribute Selection In Formal Concept Analysis To Correct Overstemmed Clusters, Guymon Hall

UNLV Theses, Dissertations, Professional Papers, and Capstones

Information retrieval is the process of finding information from an unstructured collection of data. The process of information retrieval involves building an index, commonly called an inverted file. As part of the inverted file, information retrieval algorithms often stem words to a common root. Stemming involves reducing a document term to its root. There are many ways to stem a word: affix removal and successor variety are two common categories of stemmers. The Porter Stemming Algorithm is a suffix removal stemmer that operates as a rule-based process on English words. We can think of stemming as a way to cluster …

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Google Books As Infrastructure Of In/Justice: Towards A Sociotechnical Account Of Rawlsian Justice, Information, And Technology, Anna Lauren Hoffmann May 2014

Google Books As Infrastructure Of In/Justice: Towards A Sociotechnical Account Of Rawlsian Justice, Information, And Technology, Anna Lauren Hoffmann

Theses and Dissertations

The Google Books project is germane for examining underappreciated dimensions of social justice and access to information from a Rawlsian perspective. To date, however, the standard account of Rawls as applied to information and technology has focused almost exclusively on rights to access and information as a primary good (Drahos 1996; van den Hoven and Rooksby 2008; Duff 2011). In this dissertation, the author develops an alternative to the standard account--the sociotechnical account--that draws on underappreciated resources available within discussions of Rawls' work. Specifically, the author focuses on the importance of Rawls' basic structure argument and the value of self-respect--two …

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Essays On The Digital Divide, Belal Abdelfattah Jan 2014

Essays On The Digital Divide, Belal Abdelfattah

Open Access Theses & Dissertations

The digital divide is a phenomenon that is globally persistent, despite rapidly decreasing costs in technology. While much of the variance in the adoption and use of information communication technology (ICT) that defines the digital divide can be explained by socioeconomic and demographic variables, there is still significant unaccounted variance that needs to be explained if the world's population is expected to be brought more fully into the digital age. The present research addresses this need with three cross-country studies. Study 1 primarily investigates the time individuals spend with traditional media sources as a likely explanation for their frequency of …

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Time Will Tell : Temporal Reasoning In Clinical Narratives And Beyond, Weiyi Sun Jan 2014

Time Will Tell : Temporal Reasoning In Clinical Narratives And Beyond, Weiyi Sun

Legacy Theses & Dissertations (2009 - 2024)

Temporal reasoning in natural language refers to the extraction and understanding of time-related information conveyed in free text. A clinical narrative temporal reasoning component can enable a spectrum of medical natural language processing (NLP) applications that directly improve patient care documentation efficiency, accessibility and accountability. This dissertation contributes in three subtasks under temporal reasoning: temporal annotation, temporal expression extraction and temporal relation inferences. The temporal annotation work described in the dissertation produced one of the first publicly available clinical narratives. We published one of the first sets of temporal

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Exploratory Study Of Student Instructional Choice In Online Learning, Andrew Hurd Jan 2014

Exploratory Study Of Student Instructional Choice In Online Learning, Andrew Hurd

Legacy Theses & Dissertations (2009 - 2024)

This exploratory study considers choice theory, decision theory, and the constructivist theory of education to explore college-level computer science learners' behavior when presented with multiple instructional modes (instructional methods for the presentation of course content, such as video, text, audio, animation, etc.) in an online learning environment.

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