With the latest advances in conversational agents like Siri and Alexa, and Large Language Models (LLMs) like ChatGPT and PaLM, Question Answering (QA) systems have become more important. Users submit millions of queries per day and it is up to the system to provide reliable, to-the-point answers. In this dissertation, we explore various aspects to…

The research in this dissertation consists of two parts: An active learning algorithm for hierarchical labels and an embedding-based retrieval algorithm. In the first part, we present a new approach for learning hierarchically decomposable concepts. The approach learns a high-level classifier (e.g., location vs. non-location) by separately…

This two-part dissertation centers on a re-examination of the role of book indexes in information retrieval research on full-text digital book collections in digital libraries. Early research focused on information retrieval and book indexes (in addition to other parts of books) in the 2000s when the Google Books corpus was first released to the…

The problem addressed was that many college students face difficulty in retrieving relevant documents that satisfy their academic needs from web-based systems and digital libraries. The study purpose was to determine strategies that college students could employ to increase the relevance of materials retrieved via online search systems. The…

Practical work involving laboratory experiments is agreed upon to be an essential component of secondary science education. Practical work encompasses a broad range of activity types. The different forms of practical work are not equal in terms of cognitive demand and learning benefit. Inquiry-based investigations provide experience of cognitive…

This mixed methods research study examined the reading motivation and retrieval practice ability of U. S. undergraduates aged 18 to 23, as well as the correlations between the two variables, with a focus on gender, year as an undergraduate, and race/ethnicity. A random national sample of 90 undergraduates and an additional minority sample of 17…

Shoeprints are a common type of evidence found at crime scenes and are regularly used in forensic investigations. However, their utility is limited by the lack of reference footwear databases that cover the large and growing number of distinct shoe models. Additionally, existing methods for matching crime-scene shoeprints to reference databases…

To meet the national and international call for creative and innovative engineers, many engineering departments and classrooms are striving to create more authentic learning spaces where students are actively engaging with design and innovation activities. For example, one model for teaching innovation is Innovation-Based Learning (IBL) where…

Unlike desktop computers, reading in virtual reality allows the reader and the information to cohabit in the three-dimensional space. However, virtual reality typography rarely exploits the new affordances three-dimensionality offers. This study addressed the need to understand the contributions of spatially distributed layouts on expository text…

This dissertation explores the utilization of a Knowledge Graph of "Micro-topics'' arranged into "Learning Pathways'' (KGMLP) through three learning activities: spaced retrieval, reading, and collaborative note-taking. The objective is to enhance four (out of six) levels of Bloom's digital taxonomy of cognitive processes: remembering,…

Educational Data Mining (EDM) is an emerging field that aims to better understand students' behavior patterns and learning environments by employing statistical and machine learning methods to analyze large repositories of educational data. Analysis of variable data in the early stages of a course might be used to develop a comprehensive…

The exponential growth of digital libraries and the proliferation of scholarly content in electronic formats have made data mining and information retrieval essential tools for effectively managing, organizing, and disseminating knowledge. This thesis provides a comprehensive analysis of the advancements and challenges in these fields, with a…

The problem addressed in this study was that students who use passive study techniques when learning medical terminology are less likely to perform well on exams and retain course content in long-term memory. The purpose of this qualitative exploratory multiple case study was to explore the perceptions of college faculty regarding the…

This study examined the processes of credibility monitoring used by secondary science and social studies teachers when conducting an online inquiry and examining websites and their perspectives on teaching these processes to students through verbal protocol analysis and semi-structured interviews. Eight educators, four science teachers and four…

Media like videogames (and novels, film, music, etc.) play an important role in most people's lives, and creation and comprehension of these works benefit from critical study. Scholarly analysis of media has been facilitated by information retrieval technology, which not only saves time, but also makes it possible to ask new kinds of questions.…