Machine learning (ML) techniques have been successfully applied to a wide array of applications. This dissertation aims to take application data handling into account when developing ML-based solutions for real-world problems through a holistic framework. To demonstrate the generality of our framework, we consider two real-world applications: spam…

As data becomes an integral part of our lives, the general public faces the increasing need to actively engage with data to participate in daily activities, support personal goals, and understand social issues. Formal data science training, however, remains out of reach for most people and does not cater to their diverse needs related to data.…

This article-format dissertation focuses on how scholars use social media to support their scholarship. The first article is a scoping literature review that outlines current research. While overviewing an emergent field of literature, the article highlights motivations for using social media use, discusses benefits and drawbacks of this use for…

Online networks, as digital images reflecting every aspects of real world especially under the current context of information technology, have become the most massive and opulent data source these days, where vast amount of information keeps being produced and transmitted. Their rapid expansion in scale and data volume draws wide attention and…

A Massive Open Online Course (MOOC) is a course that is offered fully online and is usually open for enrollment by any individual, with no limit on the number of participants. MOOCs are a popular resource for learning worldwide with over 23 million new learners registering for MOOCs in 2017 alone. Coursera, the most popular MOOC platform, has…

This dissertation examines conversations and attitudes about mental health in Twitter discourse. The research uses big data collection, machine learning classification, and social network analysis to answer the following questions (1) what mental health topics do people discuss on Twitter? (2) Have patterns of conversation changed over time? Have…

The patient portal is an electronic repository of health information, including doctor's notes, laboratory test results, and diagnostic imaging reports. There are limited studies that explore how individuals make sense of their health information, and use that understanding to increase health literacy. Education leaders should consider the ways…

This quantitative, correlational study used learning analytics to examine correlations between predictor variables (student-content, student-instructor, and student-system interactions) and criterion variable (student-student interactions) and to determine if the four predictor variables were significant predictors of grades in graduate students…

This qualitative study explored the experiences of an online learner at a community college. The purpose of the study was to investigate community college students' perception of online courses through an examination of their experiences with online learning. The community of inquiry theory was used as a guide to better understand the importance…

The goal of this study was to examine the professional development experiences of two contrastive participants while they were creating standards-based individualized education plan (IEP) goals using a virtual world called TeacherSim. Two specific focuses of the study were on how special educators engaged with the task of creating standards-based…

In this multiple-case study, the author investigated fully online students' perceptions of and experiences with asynchronous and synchronous writing support options of an institutional writing center and a commercial tutoring service. This dissertation used a multiple-case study design (Merriam, 1998, 2009; Yin, 2009) to ascertain which features…

The focus of this study was to answer the following overarching question: How does a Twitter discussion format compare to a Facebook discussion format in terms of promoting collaborative argumentative discourse? Data analysis focused on the difference in amount of arguments, counter-arguments, reasons, and elaborations generated by participants…

This study explored the phenomenon of success factors of job applicants utilizing Second Life to gain employment. The study focused on identifying the perception of what qualified as a successful interview through the lived common experiences of 16 employment recruiters. The research problem was that a gap existed in scholarly research on…

Recent scholarship in Human-Computer Interaction, science and technology studies, and design research has focused on hacker communities as sites of innovation and entrepreneurship, novel forms of education, and the democratization of technological production. However, hacking practices are more than new technical practices; they are also…

In the last couple of years, a new aspect of online social networking has emerged, in which the strength of social network connections is based not on social ties but mutually shared interests. This dissertation studies these "curation-based" online social networks (CBN) and their suitability for the diffusion of electronic word-of-mouth…