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- Title
- A Snapchat Marketing Perspective: Examining the Personality Traits and Motives that Predict Attitudes Toward and Engagement with Non-Sponsored and Sponsored Content in Snapchat.
- Creator
-
Sousa Garnica, Tiany, Kinnally, William, Rubenking, Bridget, Sellnow, Deanna, University of Central Florida
- Abstract / Description
-
Social networking sites (SNS) have revolutionized the communication between consumers and brands, publishers, and marketers. These platforms have become a way for advertisers to communicate directly and engage users with content that is innovative and less intrusive. The aim of this research is to examine the personality traits and motives (based on the uses and gratifications theory) that predict attitudes toward and engagement with non-sponsored and sponsored content in Snapchat. An online...
Show moreSocial networking sites (SNS) have revolutionized the communication between consumers and brands, publishers, and marketers. These platforms have become a way for advertisers to communicate directly and engage users with content that is innovative and less intrusive. The aim of this research is to examine the personality traits and motives (based on the uses and gratifications theory) that predict attitudes toward and engagement with non-sponsored and sponsored content in Snapchat. An online survey with 606 participants showed that the main motives of using Snapchat were social information seeking, entertainment, and impression management. Multiple regression analyses were used to determine what personality traits predict the motives for using Snapchat. Finally, hierarchical multiple regressions were used to examine the models that predict attitudes toward the non-sponsored and sponsored features in Snapchat as well as the engagement with them. Recommendations for practitioners were given to help them develop marketing strategies in Snapchat.
Show less - Date Issued
- 2017
- Identifier
- CFE0006799, ucf:51825
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0006799
- Title
- THE OFFLINE IMPACT OF CYBERBULLYING.
- Creator
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Ortiz, Kathleen, Donley, Amy, University of Central Florida
- Abstract / Description
-
Over the recent years, we have seen an immense increase in technology. Though the Internet can be convenient to students, it can also bear negative repercussions. Cyberbullying has impacted millions of people across the nation hindering them in many ways. The Bullying occurs through different outlets, from websites, emails to text messages. Victims cannot truly escape the matter because it follows them wherever they may go. The intent of this thesis was to see who the victims of cyberbullying...
Show moreOver the recent years, we have seen an immense increase in technology. Though the Internet can be convenient to students, it can also bear negative repercussions. Cyberbullying has impacted millions of people across the nation hindering them in many ways. The Bullying occurs through different outlets, from websites, emails to text messages. Victims cannot truly escape the matter because it follows them wherever they may go. The intent of this thesis was to see who the victims of cyberbullying are, what the aftermath effect is, and whether they notify an adult about their situation. Using data from the School Crime Supplement based on the National Crime Victimization Survey, the findings suggest that females are victims of cyber bullying more frequently than males and that adults are not commonly notified when victimization occurs. Furthermore, the repercussions of victimization include fear of harm or attack, as well as skipping classes to avoid the problem. By exploring cyberbullying and its effect, through time studies such as this one will raise awareness in society and contribute towards the solution of cyberbullying.
Show less - Date Issued
- 2013
- Identifier
- CFH0004398, ucf:44978
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFH0004398
- Title
- THE IMPACT OF INTRAORGANIZATIONAL TRUST AND LEARNING ORIENTED CLIMATE ON ERROR REPORTING.
- Creator
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Sims, Dana Elizabeth, Salas, Eduardo, University of Central Florida
- Abstract / Description
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Insight into opportunities for process improvement provides a competitive advantage through increases in organizational effectiveness and innovation As a result, it is important to understand the conditions under which employees are willing to communicate this information. This study examined the relationship between trust and psychological safety on the willingness to report errors in a medical setting. Trust and psychological safety were measured at the team and leader level. In addition,...
Show moreInsight into opportunities for process improvement provides a competitive advantage through increases in organizational effectiveness and innovation As a result, it is important to understand the conditions under which employees are willing to communicate this information. This study examined the relationship between trust and psychological safety on the willingness to report errors in a medical setting. Trust and psychological safety were measured at the team and leader level. In addition, the moderating effect of a learning orientation climate at three levels of the organization (i.e., team members, team leaders, organizational) was examined on the relationship between trust and psychological safety on willingness to report errors. Traditional surveys and social network analysis were employed to test the research hypotheses. Findings indicate that team trust, when examined using traditional surveys, is not significantly associated with informally reporting errors. However, when the social networks within the team were examined, evidence that team trust is associated with informally discussing errors was found. Results also indicate that trust in leadership is associated with informally discussing errors, especially severe errors. These findings were supported and expanded to include a willingness to report all severity of errors when social network data was explored. Psychological safety, whether within the team or fostered by leadership, was not found to be associated with a willingness to informally report errors. Finally, learning orientation was not found to be a moderating variable between trust and psychological safety on a willingness to report errors. Instead, organizational learning orientation was found to have a main effect on formally reporting errors to risk management and documenting errors in patient charts. Theoretical and practical implications of the study are offered.
Show less - Date Issued
- 2009
- Identifier
- CFE0002818, ucf:48050
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0002818
- Title
- Group Composition Characteristics as Predictors of Shared Leadership: An Exploration of Competing Models of Shared Leadership Emergence.
- Creator
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Currie, Richard, Ehrhart, Mark, Burke, Shawn, Jex, Steve, University of Central Florida
- Abstract / Description
-
The study of leadership in organizations has received much research attention over the past several decades. However, most of this research has examined hierarchical structures of leadership wherein one individual leads, or is perceived to lead, several other individuals. With a growing number of organizations structuring employees within teams or work groups, researchers have begun studying the ways in which leadership operates in groups. One alternative to the traditional hierarchical...
Show moreThe study of leadership in organizations has received much research attention over the past several decades. However, most of this research has examined hierarchical structures of leadership wherein one individual leads, or is perceived to lead, several other individuals. With a growing number of organizations structuring employees within teams or work groups, researchers have begun studying the ways in which leadership operates in groups. One alternative to the traditional hierarchical structure is for leadership to be distributed or shared in groups such that multiple group members contribute to the overall leadership function of the group. As a result, researchers have begun examining the construct of shared leadership, which is defined as the extent to which multiple group members share in the leadership function of the group. Because shared leadership is a relatively new concept in the research literature, our knowledge of the antecedents of shared leadership is limited. The primary aim of the present research was to explore group composition as a potential antecedent of shared leadership in teams. Group composition was examined in terms of the agreeableness, extraversion, collectivistic work orientation, and trait competitiveness within the group. Mean, minimum/maximum, and variance models of group composition were employed in the present research. A sample of 385 participants comprised a total of 97 groups of three to six individuals to complete a leaderless group discussion exercise and completed measures of shared leadership after completing the group exercise. Results from a series of hierarchical linear regression analyses found no significant relationships between any of predictors and shared leadership using either a social network analysis or a referent-shift approach. Given the short amount of time group members worked on the group task, a clear implication of these findings is that shared leadership requires adequate time to manifest in groups.
Show less - Date Issued
- 2019
- Identifier
- CFE0007446, ucf:52694
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0007446
- Title
- Trust-Based Rating Prediction and Malicious Profile Detection in Online Social Recommender Systems.
- Creator
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Davoudi, Anahita, Chatterjee, Mainak, Hu, Haiyan, Zou, Changchun, Rahnavard, Nazanin, University of Central Florida
- Abstract / Description
-
Online social networks and recommender systems have become an effective channel for influencing millions of users by facilitating exchange and spread of information. This dissertation addresses multiple challenges that are faced by online social recommender systems such as: i) finding the extent of information spread; ii) predicting the rating of a product; and iii) detecting malicious profiles. Most of the research in this area do not capture the social interactions and rely on empirical or...
Show moreOnline social networks and recommender systems have become an effective channel for influencing millions of users by facilitating exchange and spread of information. This dissertation addresses multiple challenges that are faced by online social recommender systems such as: i) finding the extent of information spread; ii) predicting the rating of a product; and iii) detecting malicious profiles. Most of the research in this area do not capture the social interactions and rely on empirical or statistical approaches without considering the temporal aspects. We capture the temporal spread of information using a probabilistic model and use non-linear differential equations to model the diffusion process. To predict the rating of a product, we propose a social trust model and use the matrix factorization method to estimate user's taste by incorporating user-item rating matrix. The effect of tastes of friends of a user is captured using a trust model which is based on similarities between users and their centralities. Similarity is modeled using Vector Space Similarity and Pearson Correlation Coefficient algorithms, whereas degree, eigen-vector, Katz, and PageRank are used to model centrality. As rating of a product has tremendous influence on its saleability, social recommender systems are vulnerable to profile injection attacks that affect user's opinion towards favorable or unfavorable recommendations for a product. We propose a classification approach for detecting attackers based on attributes that provide the likelihood of a user profile of that of an attacker. To evaluate the performance, we inject push and nuke attacks, and use precision and recall to identify the attackers. All proposed models have been validated using datasets from Facebook, Epinions, and Digg. Results exhibit that the proposed models are able to better predict the information spread, rating of a product, and identify malicious user profiles with high accuracy and low false positives.
Show less - Date Issued
- 2018
- Identifier
- CFE0007168, ucf:52245
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0007168
- Title
- Human Group Behavior Modeling for Virtual Worlds.
- Creator
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Shah, Syed Fahad Allam, Sukthankar, Gita, Georgiopoulos, Michael, Foroosh, Hassan, Anagnostopoulos, Georgios, University of Central Florida
- Abstract / Description
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Virtual worlds and massively-multiplayer online games are rich sources of information about large-scale teams and groups, offering the tantalizing possibility of harvesting data about group formation, social networks, and network evolution. They provide new outlets for human social interaction that differ from both face-to-face interactions and non-physically-embodied social networking tools such as Facebook and Twitter. We aim to study group dynamics in these virtual worlds by collecting and...
Show moreVirtual worlds and massively-multiplayer online games are rich sources of information about large-scale teams and groups, offering the tantalizing possibility of harvesting data about group formation, social networks, and network evolution. They provide new outlets for human social interaction that differ from both face-to-face interactions and non-physically-embodied social networking tools such as Facebook and Twitter. We aim to study group dynamics in these virtual worlds by collecting and analyzing public conversational patterns of users grouped in close physical proximity. To do this, we created a set of tools for monitoring, partitioning, and analyzing unstructured conversations between changing groups of participants in Second Life, a massively multi-player online user-constructed environment that allows users to construct and inhabit their own 3D world. Although there are some cues in the dialog, determining social interactions from unstructured chat data alone is a difficult problem, since these environments lack many of the cues that facilitate natural language processing in other conversational settings and different types of social media. Public chat data often features players who speak simultaneously, use jargon and emoticons, and only erratically adhere to conversational norms.Humans are adept social animals capable of identifying friendship groups from a combination of linguistic cues and social network patterns. But what is more important, the content of what people say or their history of social interactions? Moreover, is it possible to identify whether people are part of a group with changing membership merely from general network properties, such as measures of centrality and latent communities? These are the questions that we aim to answer in this thesis. The contributions of this thesis include: 1) a link prediction algorithm for identifying friendship relationships from unstructured chat data 2) a method for identifying social groups based on the results of community detection and topic analysis.The output of these two algorithms (links and group membership) are useful for studying a variety of research questions about human behavior in virtual worlds. To demonstrate this we have performed a longitudinal analysis of human groups in different regions of the Second Life virtual world. We believe that studies performed with our tools in virtual worlds will be a useful stepping stone toward creating a rich computational model of human group dynamics.
Show less - Date Issued
- 2011
- Identifier
- CFE0004164, ucf:49074
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0004164
- Title
- A QUALITATIVE INVESTIGATION OF ADOLESCENT FEMALES' USE OF SOCIAL NETWORKING WEBSITES.
- Creator
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Pate, Janine, DeLorme, Denise, University of Central Florida
- Abstract / Description
-
The aim of the present study was to explore the ways adolescent females, age 14 through 17, utilized social networking websites such as MySpace and Facebook for communication, self-presentation and identity development purposes. Uses and gratifications theory served as a framework for identifying the participantsÃÂ' motivations for heavily using these websites, which allow users to post pictures, interests and updates for their friends to view and interact with online....
Show moreThe aim of the present study was to explore the ways adolescent females, age 14 through 17, utilized social networking websites such as MySpace and Facebook for communication, self-presentation and identity development purposes. Uses and gratifications theory served as a framework for identifying the participantsÃÂ' motivations for heavily using these websites, which allow users to post pictures, interests and updates for their friends to view and interact with online. Using a qualitative method, one preliminary focus group and ten in-depth interviews were conducted, totaling fifteen female participants between the ages of 14 and 17. Interview questions covered topics such as peer interactions through social networking sites, posting personal content to their profile pages, self-presentations through pictures and text, creating and maintaining friendships through these sites, and negative and positive feedback received through comments. Results indicated that the participants frequently used social networking websites for five main gratifications: Information Sharing, Convenient Communication, Self-Expression, Friendship Formation and Social Support.
Show less - Date Issued
- 2010
- Identifier
- CFE0003180, ucf:48608
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0003180
- Title
- JEALOUSY AND ATTACHMENT 2.0: THE ROLE OF ATTACHMENT IN THE EXPRESSION AND EXPERIENCE OF JEALOUSY ON FACEBOOK.
- Creator
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Cole, Megan, Weger, Harry, University of Central Florida
- Abstract / Description
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The main objective of this research was to investigate how people use Facebook within the context of their romantic relationships from an attachment theory perspective. In the present study, a convenience sample (n = 179) completed an online survey with questions about Facebook use, attachment style, uncertainty-related behaviors, jealousy, relationship satisfaction and commitment. Results indicate that 1) there is a positive correlation between jealousy and Facebook use; 2) also, there is a...
Show moreThe main objective of this research was to investigate how people use Facebook within the context of their romantic relationships from an attachment theory perspective. In the present study, a convenience sample (n = 179) completed an online survey with questions about Facebook use, attachment style, uncertainty-related behaviors, jealousy, relationship satisfaction and commitment. Results indicate that 1) there is a positive correlation between jealousy and Facebook use; 2) also, there is a positive correlation between jealousy and the time an individual spends viewing their partnerÃÂ's profile; 3) further, jealousy is positively related to uncertainty-reducing behaviors. Taken together, these results support the assertion that there is a downward spiral involving jealousy and Facebook. Results also showed that there are two types of uncertainty-related behaviors: antisocial behaviors and territorial behaviors. Anxious-ambivalent attachment styles were found to engage in antisocial behaviors the most, whereas secure individuals engaged in antisocial behaviors the least. The findings provide ample areas for future research on social networking sites and relationship variables.
Show less - Date Issued
- 2010
- Identifier
- CFE0003078, ucf:48329
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0003078
- Title
- Assessing the Effect of Social Networks on Employee Creativity in a Fast-Food Restaurant Environment.
- Creator
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Rabinowitz, Mitchell, Karwowski, Waldemar, Elshennawy, Ahmad, Rabelo, Luis, Williams, Kent, Beitsch, Owen, University of Central Florida
- Abstract / Description
-
Creativity has been widely recognized as critical to the economic success of organizations for over 60 years. Today, it is considered to be the most highly prized (")commodity(") of businesses. As such, there have been numerous efforts to better understand creativity with the goal of increasing individual creativity and therefore improving the economic success of organizations. An emerging area of research on creativity recognizes creativity as a complex, social process that is dependent upon...
Show moreCreativity has been widely recognized as critical to the economic success of organizations for over 60 years. Today, it is considered to be the most highly prized (")commodity(") of businesses. As such, there have been numerous efforts to better understand creativity with the goal of increasing individual creativity and therefore improving the economic success of organizations. An emerging area of research on creativity recognizes creativity as a complex, social process that is dependent upon many factors, including those of an environmental nature. In support of this perspective, a growing amount of research has investigated the effect of social networks on individual creativity. This relationship is based on the premise that an individual's social network affects access to diverse information, which in turn, is critical for creativity. The previous studies on this relationship, however, have been conducted in a limited number of environments, most of which have been knowledge-intensive in nature. As such, this study was conducted in a fast-food restaurant environment to determine whether the relationship between social networks and creativity is the same as in other, previously studied environments.Data was collected for a sample of 247 employees of an organization consisting of seven fast-food franchise restaurants of a popular fast-food restaurant chain in the northeast region of the United States. An ordinary least squares regression model was developed to investigate the relationship between creativity and the commonly studied social network variables: number of weak ties, number of strong ties, clustering, and centrality. The social network variables accounted for 17.3% of the overall variance in creativity, establishing that a relationship does exist between social networks and creativity in the fast-food restaurant environment. This relationship, however, was not as expected. In contrast to expectations, weak ties were not found to be a significant, positive predictor of creativity. Also, strong ties were found to be a significant, positive predictor of creativity, where it was expected that this relationship would be in the negative direction. Centrality, however, was found to be a significant, positive predictor of creativity, as expected, while the results for clustering were inconclusive due to its high correlation with the other social network variables in the study.As such, it appears that the relationship between social networks and creativity may be different in the fast-food restaurant environment when compared to environments previously studied. It is possible that this difference is a result of the differences between high and low knowledge-intensive working environments. The lack of support for weak ties as a significant positive predictor of creativity in conjunction with limited opportunities for significant creative achievement suggests that access to diverse information may be less important for creativity in the fast-food restaurant environment than in other environments. The findings that strong ties and centrality are significant, positive predictors of creativity, however, appear to indicate that the ability to implement a creative idea, however minor it may be, is more important in the fast-food restaurant environment than the generation of that idea in the first place. Due to the limitations of this study, however, it is not possible to definitively conclude this notion without efforts to determine which factor afforded by positions rich in strong ties or high in centrality, the informational benefits or the organizational influence, is more important for creativity.
Show less - Date Issued
- 2016
- Identifier
- CFE0006846, ucf:51799
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0006846
- Title
- Wounded Warrior or War Hero? Or Maybe, Neither?: Resisting Common Tropes of the Veteran and Developing Digital Literacy Practices via Narrative Building and Identity Presentation in Social Networking Spaces.
- Creator
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Branham, Cassandra, Vie, Stephanie, Rounsaville, Angela, Salter, Anastasia, Grohowski, Mariana, University of Central Florida
- Abstract / Description
-
This project reports on the results of a study that investigated the social networking use of student and non-student veterans, with a particular focus on the narrative building and identity presentation practices involved in this use. In this dissertation, I argue that stereotypical and exclusionary tropes of the veteran, such as the veteran as war hero and the veteran as wounded warrior, are damaging to our veterans and to others, in both the society and the classroom. However, through the...
Show moreThis project reports on the results of a study that investigated the social networking use of student and non-student veterans, with a particular focus on the narrative building and identity presentation practices involved in this use. In this dissertation, I argue that stereotypical and exclusionary tropes of the veteran, such as the veteran as war hero and the veteran as wounded warrior, are damaging to our veterans and to others, in both the society and the classroom. However, through the detailed analysis of survey data and data collected from an interview and social networking profile tour with one student veteran participant, I highlight the exclusionary nature of these tropes and argue that the complex digital narratives crafted in social networking spaces can offer resistance to popular tropes of the veteran. The complexity of my participants' digital narratives also offers support for the argument that elements of one's social networking profiles, when viewed independently and decontextualized, can lead to invalid and unfair assumptions about the users' identity. Additionally, I argue that, for my participants, many of whom demonstrated a nuanced and critical understanding of audience, decisions to self-identify as military personnel in social networking spaces are intertwined with perceptions of privacy. Finally, this project culminates in the identification of a number of digital literacy practices present in my participants' social networking use, as well as a set of pedagogical and programmatic recommendations for writing teachers and writing program administrators interested in aiding student veterans in the process of transition and reintegration.
Show less - Date Issued
- 2016
- Identifier
- CFE0006268, ucf:51030
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0006268
- Title
- Road Networks, Social Disorganization and Lethality, an Exploration of Theory and an Examination of Covariates.
- Creator
-
Poole, Aaron, Corzine, Harold, Huff-Corzine, Lin, Mustaine, Elizabeth, Jarvis, John, Weaver, Gregory, University of Central Florida
- Abstract / Description
-
Utilizing a Criminal Event Perspective, the analyses of this dissertation test a variety of relationships to the dependent variable: the Criminal Lethality Index. Data from the National Incident-Based Reporting System, the Census and American Community Survey, the American Trauma Society, and data derived from the Census's mapping TIGER files are combined to create a database of 190 cities. This database is used to test road network connectivity (Gama Index), medical resources, criminal...
Show moreUtilizing a Criminal Event Perspective, the analyses of this dissertation test a variety of relationships to the dependent variable: the Criminal Lethality Index. Data from the National Incident-Based Reporting System, the Census and American Community Survey, the American Trauma Society, and data derived from the Census's mapping TIGER files are combined to create a database of 190 cities. This database is used to test road network connectivity (Gama Index), medical resources, criminal covariates and Social Disorganization variables in relation to a city's Criminal Lethality Index. OLS regression demonstrates a significant and negative relationship between a city's Gama Index and its Criminal Lethality Index. In addition, percent male, percent black, median income and percent of the population employed in diagnosing and treating medical professions were all consistently positively related to Criminal Lethality. The percent of males 16 to 24, percent of single parent households, and Concentrated Disadvantage Index were all consistently and negatively related to Criminal Lethality. Given these surprising results, additional diagnostic regressions are run using more traditional dependent variables such as the number of murders in a city and the proportion of aggravated assaults with major injuries per 100,000 population. These reveal the idiosyncratic nature of utilizing the Criminal Lethality Index. This dependent variable has proven useful in some circumstances and counterintuitive in others. The source of the seemingly unintuitive results is the fact that certain factors only reduce murders but many factors impact both murder and aggravated assaults, thereby creating difficultly when trying to predict patterns in Criminal Lethality.
Show less - Date Issued
- 2013
- Identifier
- CFE0005046, ucf:49961
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0005046
- Title
- INTELLIGENT DESIGN.
- Creator
-
Dudziak, Jillian, Poindexter, Carla, University of Central Florida
- Abstract / Description
-
As human beings we are designed and created in a fabric that is profound and complex. We are built with a framework where mind and body work in a concerted effort to maintain our lives automatically. A deep and defining part of our existence as humans is not just the innate desire to live but to live in consistent well-beingemotionally, physically, and mentally. I believe when we incorporate our knowledge of human physiology into our creative process then we allow ourselves a greater...
Show moreAs human beings we are designed and created in a fabric that is profound and complex. We are built with a framework where mind and body work in a concerted effort to maintain our lives automatically. A deep and defining part of our existence as humans is not just the innate desire to live but to live in consistent well-beingemotionally, physically, and mentally. I believe when we incorporate our knowledge of human physiology into our creative process then we allow ourselves a greater opportunity to create an authentic connection with our intended audience. My work during the past three years has been rooted in the study of these philosophical and scientific principles. I created a series of visual experimentations that aim to assist in my understanding of human beings at an emotional and biological level. Armed with a deep desire to understand humanity, my goal is to create work that fosters positive change and has significant impact in the world. My past and present research has been focused on human emotions, the intuitive creative process and the relationship between technology and establishing social identity.
Show less - Date Issued
- 2011
- Identifier
- CFE0003693, ucf:48844
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0003693
- Title
- Learning Dynamic Network Models for Complex Social Systems.
- Creator
-
Hajibagheri, Alireza, Sukthankar, Gita, Turgut, Damla, Chatterjee, Mainak, Lakkaraju, Kiran, University of Central Florida
- Abstract / Description
-
Human societies are inherently complex and highly dynamic, resulting in rapidly changing social networks, containing multiple types of dyadic interactions. Analyzing these time-varying multiplex networks with approaches developed for static, single layer networks often produces poor results. To address this problem, our approach is to explicitly learn the dynamics of these complex networks. This dissertation focuses on five problems: 1) learning link formation rates; 2) predicting changes in...
Show moreHuman societies are inherently complex and highly dynamic, resulting in rapidly changing social networks, containing multiple types of dyadic interactions. Analyzing these time-varying multiplex networks with approaches developed for static, single layer networks often produces poor results. To address this problem, our approach is to explicitly learn the dynamics of these complex networks. This dissertation focuses on five problems: 1) learning link formation rates; 2) predicting changes in community membership; 3) using time series to predict changes in network structure; 4) modeling coevolution patterns across network layers and 5) extracting information from negative layers of a multiplex network.To study these problems, we created a rich dataset extracted from observing social interactions in the massively multiplayer online game Travian. Most online social media platforms are optimized to support a limited range of social interactions, primarily focusing on communication and information sharing. In contrast, relations in massively-multiplayer online games (MMOGs) are often formed during the course of gameplay and evolve as the game progresses. To analyze the players' behavior, we constructed multiplex networks with link types for raid, communication, and trading.The contributions of this dissertation include 1) extensive experiments on the dynamics of networks formed from diverse social processes; 2) new game theoretic models for community detection in dynamic networks; 3) supervised and unsupervised methods for link prediction in multiplex coevolving networks for both positive and negative links. We demonstrate that our holistic approach for modeling network dynamics in coevolving, multiplex networks outperforms factored methods that separately consider temporal and cross-layer patterns.
Show less - Date Issued
- 2017
- Identifier
- CFE0006598, ucf:51306
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0006598
- Title
- MYSPACE OR OURSPACE: A MEDIA SYSTEM DEPENDENCY VIEW OF MYSPACE.
- Creator
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Schrock, Andrew, Brown, Timothy, University of Central Florida
- Abstract / Description
-
MySpace is a type of "social networking" website where people meet, socialize, and create friendships. The way MySpace members, particularly younger individuals, interact online underscores the changing nature of mass media. Media system dependency states that individuals become reliant on media in their daily life because of fundamental human goals. This reliance, termed a dependency, leads to repeated use. Media system dependency was applied in the current study to explain how and why...
Show moreMySpace is a type of "social networking" website where people meet, socialize, and create friendships. The way MySpace members, particularly younger individuals, interact online underscores the changing nature of mass media. Media system dependency states that individuals become reliant on media in their daily life because of fundamental human goals. This reliance, termed a dependency, leads to repeated use. Media system dependency was applied in the current study to explain how and why individuals became habitual MySpace users. To attain results a survey was administered to a convenience sampling of 401 adult undergraduates at the University of Central Florida. Members reported MySpace dependency had a moderate correlation to MySpace use, and they actively used the website an average of 1.3 hours of use per day. Results indicated members use MySpace to primarily satisfy play and interaction orientation dependencies. MySpace use was found to have a correlation with number of MySpace friends. "Number of friends created" in turn had a correlation with MySpace dependency, as people returned to interact with their friends. Individual factors were also found to be a source of influence in MySpace dependency. These individual factors were demographics, psychological factors related to use of the Internet, and psychological factors related to use of MySpace. Factors related to MySpace, extroversion and self-disclosure, were positively correlated with intensity of dependency. The influence of factors related to the Internet was partly supported; computer self-efficacy was not significantly related to MySpace dependency, while computer anxiety was significantly related to MySpace dependency. Speed of connection to the Internet and available time to use the Internet were not related to MySpace dependency. Additionally, significant differences were found between genders in overall dependency, extroversion, self-disclosure, computer anxiety, and computer self-efficacy. These findings provide evidence that MySpace members were little, if at all, constrained by factors related to use of the Internet, but were attracted to the websites for similar reasons as real-life relationships. Finally, MySpace is just one of the large number of online resources that are predominantly social, such as email, message boards, and online chat. This study found that through a "technology cluster" MySpace members use these other social innovations more frequently than non-members. However, members also used significantly more non-social innovations, which may indicate that MySpace members are part of a larger technology cluster than anticipated or perhaps are in the same category of innovation adopter.
Show less - Date Issued
- 2006
- Identifier
- CFE0001451, ucf:47057
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0001451
- Title
- PATCHWORK CULTURE: QUILT TACTICS AND DIGITEXTUALITY.
- Creator
-
Barrett Ferrier, Michelle, Saper, Craig, University of Central Florida
- Abstract / Description
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Embedded in the quilt top, the fabric patches are relays, time pathways to stories and memories of their former owners. Through the quilts, the voices of the past survive. The stories trace a path of connection between oral traditions, storytelling, the invention of meaning, and the preservation of cultural memory. The theory and method described herein use the quilt patchwork metaphor as the basis for a web interface for designing and modeling knowledge-based graphical, narrative, and...
Show moreEmbedded in the quilt top, the fabric patches are relays, time pathways to stories and memories of their former owners. Through the quilts, the voices of the past survive. The stories trace a path of connection between oral traditions, storytelling, the invention of meaning, and the preservation of cultural memory. The theory and method described herein use the quilt patchwork metaphor as the basis for a web interface for designing and modeling knowledge-based graphical, narrative, and multimedia data. More specifically, the method comprises a digital storytelling and knowledge management tool that allows one or more users to create, save, store, and visually map or model digital stories. The method creates a digital network of a community's stories for digital ethnography work. Digital patches that represent the gateway to the stories of an individual are pieced together into a larger quilt design, creating a visual space that yields the voices of its creators at the click of a mouse. Through this narrative mapping, users are able to deal with complexity, ambiguity, density, and information overload. The method takes the traditional quilt use and appropriates it into a digital apparatus so that the user is connected to multiple points of view that can be dynamically tried out and compared. The hypertextual quilting method fulfills the definition of a deconstructive hypertext and emancipatory social science research methodologies by creating a collaborative, polyvocal interface where users have access to the code, content and conduits to rewrite culture's history with subaltern voices. In this digital place of intertextuality, stories are juxtaposed with images in a montage that denies the authority of a single voice and refuses fixed meaning. In dialogue, contestation, and play, the digitextuality of the Digital Story Quilt provides a praxis for critical theory. The Digital Story Quilt method concerns itself with questions of identity, the processes through which these identities are developed, the mechanics of processes of privilege and marginalization and the possibility of political action through narrative performance against these processes.
Show less - Date Issued
- 2007
- Identifier
- CFE0001659, ucf:47239
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0001659
- Title
- Applying the Technology Acceptance Model to Predict and Explain Elementary and Secondary Preservice Teachers' Continuance Behavioral Intentions and Pedagogical Usage of Twitter to build Professional Capital: A Structural Equation Modeling Inquiry.
- Creator
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Gurjar, Nandita, Sivo, Stephen, Roberts, Sherron, Xu, Lihua, Vie, Stephanie, University of Central Florida
- Abstract / Description
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The purpose of this research study was to predict and explain elementary and secondary preservice teachers' continuance behavioral intentions and pedagogical usage of Twitter, a web based social networking, microblogging platform, to build professional growth and capital. The objective of the research study was to examine preservice teachers' beliefs associated with the specified constructs that formed the latent variables of the hypothesized research model; these latent variables were then...
Show moreThe purpose of this research study was to predict and explain elementary and secondary preservice teachers' continuance behavioral intentions and pedagogical usage of Twitter, a web based social networking, microblogging platform, to build professional growth and capital. The objective of the research study was to examine preservice teachers' beliefs associated with the specified constructs that formed the latent variables of the hypothesized research model; these latent variables were then measured with their associated indicators or manifest variables, and the relationship between the manifest variables was examined through the Structural Equation Modeling (SEM) process. A non-experimental empirical research study was conducted using the survey methodology; purposive, criterion referenced, sampling of elementary and secondary preservice teachers, N=379, was employed using social media platforms and intern listserv at a large Southeastern university. The final sample of N= 250 participants was determined through the process of regression imputation of elementary and secondary preservice teachers' survey responses. The results demonstrated that constructs of the extended Technology Acceptance Model showed significant goodness-of-fit indices and coefficients of determination after analyzing the data from the survey. Implications of this research contribute significantly toward teacher education and training by providing insights into the factors that impact the pedagogical use of Twitter, a web-based social networking and microblogging platform, for building professional capital in preservice teachers.
Show less - Date Issued
- 2016
- Identifier
- CFE0006314, ucf:51551
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0006314
- Title
- Settlement History and Interaction in the Manialtepec Basin of Oaxaca's Central Coast.
- Creator
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Menchaca, Victoria, Barber, Sarah, Walker, John, Chase, Arlen, University of Central Florida
- Abstract / Description
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As the focus of over 70 years' of archaeological research, Oaxaca, Mexico, is one of Mesoamerica's best understood regions. Yet, despite the volume of work in Oaxaca, information about one of its key resource areas, the central Pacific coast, remains limited. Specifically, the ambiguous role of Oaxaca's Central Coast in interregional relationships during pre-Hispanic times to the sites of Monte Alb(&)#225;n and Tututepec has been a chronic problem and major source of debate for decades. The...
Show moreAs the focus of over 70 years' of archaeological research, Oaxaca, Mexico, is one of Mesoamerica's best understood regions. Yet, despite the volume of work in Oaxaca, information about one of its key resource areas, the central Pacific coast, remains limited. Specifically, the ambiguous role of Oaxaca's Central Coast in interregional relationships during pre-Hispanic times to the sites of Monte Alb(&)#225;n and Tututepec has been a chronic problem and major source of debate for decades. The purpose of this thesis is to begin clarifying the role of Oaxaca's Central Coast in interregional networks and its pre-Hispanic history. Analysis utilized surface observations, surface collections, and information from limited excavations performed by the Proyecto Arqueol(&)#243;gico Laguna de Manialtepec (PALM) in the Manialtepec Basin, located on the Central Coast of Oaxaca. The data was then mapped using ArcGIS software to render settlement and artifact patterns. Based on the results of this project I suggest a history of settlement for this area. I also argue that the Basin contained three centers, maintained interregional interactions, and was invaded by the Mixtecs of highland Oaxaca during the Late Postclassic Period (A.D. 1200-1500).
Show less - Date Issued
- 2015
- Identifier
- CFE0005843, ucf:50920
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0005843
- Title
- Investigating The Relationship Between Adverse Events and Infrastructure Development in an Active War Theater Using Soft Computing Techniques.
- Creator
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Cakit, Erman, Karwowski, Waldemar, Lee, Gene, Thompson, William, Mikusinski, Piotr, University of Central Florida
- Abstract / Description
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The military recently recognized the importance of taking sociocultural factors into consideration. Therefore, Human Social Culture Behavior (HSCB) modeling has been getting much attention in current and future operational requirements to successfully understand the effects of social and cultural factors on human behavior. There are different kinds of modeling approaches to the data that are being used in this field and so far none of them has been widely accepted. HSCB modeling needs the...
Show moreThe military recently recognized the importance of taking sociocultural factors into consideration. Therefore, Human Social Culture Behavior (HSCB) modeling has been getting much attention in current and future operational requirements to successfully understand the effects of social and cultural factors on human behavior. There are different kinds of modeling approaches to the data that are being used in this field and so far none of them has been widely accepted. HSCB modeling needs the capability to represent complex, ill-defined, and imprecise concepts, and soft computing modeling can deal with these concepts. There is currently no study on the use of any computational methodology for representing the relationship between adverse events and infrastructure development investments in an active war theater. This study investigates the relationship between adverse events and infrastructure development projects in an active war theater using soft computing techniques including fuzzy inference systems (FIS), artificial neural networks (ANNs), and adaptive neuro-fuzzy inference systems (ANFIS) that directly benefits from their accuracy in prediction applications. Fourteen developmental and economic improvement project types were selected based on allocated budget values and a number of projects at different time periods, urban and rural population density, and total adverse event numbers at previous month selected as independent variables. A total of four outputs reflecting the adverse events in terms of the number of people killed, wounded, hijacked, and total number of adverse events has been estimated. For each model, the data was grouped for training and testing as follows: years between 2004 and 2009 (for training purpose) and year 2010 (for testing). Ninety-six different models were developed and investigated for Afghanistan and the country was divided into seven regions for analysis purposes. Performance of each model was investigated and compared to all other models with the calculated mean absolute error (MAE) values and the prediction accuracy within (&)#177;1 error range (difference between actual and predicted value). Furthermore, sensitivity analysis was performed to determine the effects of input values on dependent variables and to rank the top ten input parameters in order of importance.According to the the results obtained, it was concluded that the ANNs, FIS, and ANFIS are useful modeling techniques for predicting the number of adverse events based on historical development or economic projects' data. When the model accuracy was calculated based on the MAE for each of the models, the ANN had better predictive accuracy than FIS and ANFIS models in general as demonstrated by experimental results. The percentages of prediction accuracy with values found within (&)#177;1 error range around 90%. The sensitivity analysis results show that the importance of economic development projects varies based on the regions, population density, and occurrence of adverse events in Afghanistan. For the purpose of allocating resources and development of regions, the results can be summarized by examining the relationship between adverse events and infrastructure development in an active war theater; emphasis was on predicting the occurrence of events and assessing the potential impact of regional infrastructure development efforts on reducing number of such events.
Show less - Date Issued
- 2013
- Identifier
- CFE0004826, ucf:49757
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0004826