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Description
The increasing popularity of Twitter renders improved trustworthiness and relevance assessment of tweets much more important for search. However, given the limitations on the size of tweets, it is hard to extract measures for ranking from the tweet's content alone. I propose a method of ranking tweets by generating a reputation score for each tweet that is based not just on content, but also additional information from the Twitter ecosystem that consists of users, tweets, and the web pages that tweets link to. This information is obtained by modeling the Twitter ecosystem as a three-layer graph. The reputation score is used to power two novel methods of ranking tweets by propagating the reputation over an agreement graph based on tweets' content similarity. Additionally, I show how the agreement graph helps counter tweet spam. An evaluation of my method on 16~million tweets from the TREC 2011 Microblog Dataset shows that it doubles the precision over baseline Twitter Search and achieves higher precision than current state of the art method. I present a detailed internal empirical evaluation of RAProp in comparison to several alternative approaches proposed by me, as well as external evaluation in comparison to the current state of the art method.
ContributorsRavikumar, Srijith (Author) / Kambhampati, Subbarao (Thesis advisor) / Davulcu, Hasan (Committee member) / Liu, Huan (Committee member) / Arizona State University (Publisher)
Created2013
Description
One theoretical research topic in organizational economics is the information issues raised in different organizations. This has been extensively studied in last three decades. One common feature of these research is focusing on the asymmetric information among different agents within one organization. However, in reality, we usually face the following situation. A group of people within an organization are completely transparent to each other; however, their characters are not known by other organization members who are outside this group. In my dissertation, I try to study how this information sharing would affect the outcome of different organizations. I focus on two organizations: corporate board and political parties. I find that this information sharing may be detrimental for (some of) the members who shared information. This conclusion stands in contrast to the conventional wisdom in both corporate finance and political party literature.
ContributorsWu, Zhenhua (Author) / Friedenberg, Amanda (Thesis advisor) / Manelli, Alejandro (Committee member) / Chade, Hector (Committee member) / Arizona State University (Publisher)
Created2014
Description
There are over 4,000 higher education institutions in the U.S., according to the National Center for Education Statistics. With a variety of options at an applicant’s disposal, the competition for institutions to attract their desired student body can be fierce. Some factors many consider when searching for the perfect college are its reputation and brand. Increasingly, universities have chosen to engage in marketing and branding techniques once reserved for corporations. According to a report by the Santa Clara Consulting Group, “a university is no longer just an institution of higher learning but also a business.” In coordination with this growing trend, institutions have been propelled to undergo some extent of a transformation to achieve their goals. This paper examines three institutions representing different higher education categories that have undergone or are currently undergoing some extent of a reputational shift. Looking at a large public university, an Ivy League institution and a liberal arts college, the research explores the various communications efforts made by each institution and how they compare. In some cases, the communications department is an integral component of the shift, while sometimes it provides mostly auxiliary support. Ultimately, this research hopes to provide insight into the following questions: what actions can an institution’s communications department take to help strengthen its reputation and grow its brand; and how do these strategies compare among various types of institutions?
ContributorsWolfe, Alexandra C (Author) / Hass, Mark (Thesis director) / Smiley, Andrea (Committee member) / Walter Cronkite School of Journalism & Mass Comm (Contributor) / Department of Marketing (Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
Description
This study examines the The Disney College Program, a semester-long paid internship hosted by the Walt Disney Company employing more than 10,000 students each year. With over 120,000 alumni in the past 10 years, this program offers students housing and community building opportunities within the "Living" component, college credit courses within the "Learning" component, and on-the-job experience at Disneyland Resort and Walt Disney World theme parks through the "Earning" component. Specifically, the research focuses on Walt Disney World in Orlando, Florida. The researcher conducted a 39-question online survey prompting 1,749 responses from Disney College Program alumni to help answer the following research questions: (1) Who are Disney College Program Cast Members, (2) What is their level of satisfaction with the program, and (3) Are they influencers? This study uses theoretical elements (e.g. levels of adoption, influencers and brand loyalty) to describe influence and psychological effects to describe satisfaction (e.g. indoctrination, human motivation and Stockholm Syndrome). With the findings showing discrepancies between the ratings of "Living," "Learning," and "Earning" and the average overall rating, some questions arise about the program's tendencies to form tightly cohesive groups approaching elements of Stockholm Syndrome and cult-like ethos. Focusing on the 1,490 of 1,749 respondents from Walt Disney World in the past 10 years, the study concludes that Walt Disney World College Program alumni are not influencers nor advocates, but rather evangelists (i.e., zealous advocate) and loyalists.
ContributorsMcgowan, Sloane Shea (Author) / Matera, Fran (Thesis director) / Archer, Ciara (Committee member) / School of Community Resources and Development (Contributor) / Walter Cronkite School of Journalism and Mass Communication (Contributor) / College of Public Service and Community Solutions (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
When does coercion succeed in international relations? Why do states resist coercion in some cases but concede in others? This dissertation adopts network analysis to investigate the network factors influencing the success and failure of economic and military coercion. The first chapter addresses the coercion target states’ information problem regarding how coercers would react to the targets’ resistances and concessions. By regarding resistances and concessions as network ties that can transmit information, it argues that past coercion outcomes endogenously influence targets’ current responses and coercion outcomes. Specifically, target states are more likely to concede to coercers who have been successful in gaining others’ compliance. Sender states are more likely to succeed in coercion when they had successful coercion in the past. The second chapter adds a condition to the first chapter’s argument. It argues that when being coerced by the same sender, a stronger sanction target’s compliance is likely to prompt a weaker target’s acquiescence, and that a weaker target’s resistance is likely to prompt a stronger target’s resistance. The third chapter explores how states’ positions in international security and economic networks influence the success and failure of military and trade coercion. States that occupy different network positions own different network power. I argue that when the coercion sender has relatively more network power than the target, the more likely coercion will be successful. I use interstate military alliances and arms transfer data to operationalize international security networks. International economic networks are operationalized by bilateral trade and regional trade agreements networks. Using military and trade coercion outcomes in the Military Compellent Threats (MCT) and the Threats and Imposition of Economic Sanctions (TIES) datasets as outcome variables, the statistical analysis partially supports my argument. Trade coercion is more likely to succeed when the sender has more network power. However, military coercion is less likely to succeed when the sender has more network power than the target.
ContributorsAi, Weining (Author) / Peterson, Timothy (Thesis advisor) / Thies, Cameron (Committee member) / Thomson, Henry (Committee member) / Chyzh, Olga (Committee member) / Arizona State University (Publisher)
Created2023
Description
Maryvale is the most densely populated neighborhood in Phoenix, Arizona. Originally master-planned for white middle-class families, Maryvale has become a majority-minority neighborhood that is still impacted by socioeconomic problems left from the 1980's white flight, as well as a reputation for being dangerous. Residents share their experiences living in the community and their opinions about its problematic reputation and its impact and current development efforts. Oral history brings a personal perspective to the literal history of Maryvale to create a more accurate and comprehensive story.
ContributorsVillalobos-Lopez, Azucena (Author) / Dao, Tramanh (Co-author) / O'Flaherty, Katherine (Thesis director) / Mullady, Allison (Committee member) / Barrett, The Honors College (Contributor) / Dean, New Interdisciplinary Arts and Sciences (Contributor) / School of Criminology and Criminal Justice (Contributor) / School of Social and Behavioral Sciences (Contributor)
Created2023-05
Description
This is what I had for the abstract: Maryvale is the most densely populated neighborhood in Phoenix, Arizona. Originally master-planned for white middle-class families, Maryvale has become a majority-minority neighborhood that is still impacted by socioeconomic problems left from the 1980's white flight, as well as a reputation for being dangerous. Residents share their experiences living in the community and their opinions about its problematic reputation and its impact and current development efforts. Oral history brings a personal perspective to the literal history of Maryvale to create a more accurate and comprehensive story.
ContributorsDao, Tramanh (Author) / Villalobos-Lopez, Azucena (Co-author) / O'Flaherty, Katherine (Thesis director) / Mullady, Allison (Committee member) / Barrett, The Honors College (Contributor) / School of Criminology and Criminal Justice (Contributor)
Created2023-05
Description
Scholars have been studying firm innovation as a process or an outcome. Recently a couple of studies have examined the less tangible aspect of firm innovation, that is, a firm’s reputation for innovation, and have suggested that reputation for innovation is a distinct resource. However, these studies have never dug deeper to uncover the mechanism of this reputation. As a result, it is unclear how this reputation is built, maintained, or utilized. Innovation, as a form of creative destruction, is associated with uncertainty, complexity, conflict, and setback. It is thus expected that the characteristics of innovation may endow reputation for innovation with distinctive organizational implications. Yet no systematic study that integrates innovation research with reputation research exists. The purpose of the dissertation is to provide a general theory that systematically explores the antecedents, outcomes, and nature of reputation for innovation. In the first chapter, I provide a literature review of reputation multiplicity and introduce a configurational framework that maps each reputation into the following facets: actor, attribute, audience, intermediary, and valence. In the second chapter, I integrate innovation research into reputation research to build a general theory of reputation for innovation and further conclude that reputation for innovation has a paradoxical nature, since it is easy to manipulate but hard to sustain. In the last chapter, I study how a firm’s reputation for innovation impacts its response strategy for a negative event: being sued for patent infringements. I propose and find that a firm’s reputation for innovation has differential effects on its response strategies for patent litigation initiated by different parties. By providing an integrative literature review, a conceptual framework, and an empirical verification of reputation for innovation, the dissertation builds a solid foundation for future research.
ContributorsLi, Fei (Author) / Semadeni, Matthew (Thesis advisor) / Bundy, Jonathan (Committee member) / Lange, Donald (Committee member) / Arizona State University (Publisher)
Created2021
Description
Two-sided online platforms are typically plagued by hidden information (adverse selection) and hidden actions (moral hazard), limiting market efficiency. Under the context of the increasingly popular online labor contracting platforms, this dissertation investigates whether and how IT-enabled monitoring systems can mitigate moral hazard and reshape the labor demand and supply by providing detailed information about workers’ effort. In the first chapter, I propose and demonstrate that monitoring records can substitute for reputation signals such that they attract more qualified inexperienced workers to enter the marketplace. Specifically, only the effort-related reputation information is substituted by monitoring but the capability-related reputation information. In line with this, monitoring can lower the entry barrier for inexperienced workers on platforms. In the second chapter, I investigate if there is home bias for local workers when employers make the hiring decisions. I further show the existence of home bias from employers and it is primarily driven by statistical inference instead of personal “taste”. In the last chapter, I examine if females tend to have a stronger avoidance of monitoring than males. With the combination of the observational data and experimental data, I find that there is a gender difference in avoidance of monitoring and the introduction of the monitoring system increases the gender wage gap due to genders differences in such willingness-to-pay for the avoidance of monitoring. These three studies jointly contribute to the literature on the online platforms, gig economy and agency theory by elucidating the critical role of IT-enabled monitoring.
ContributorsLiang, Chen, Ph.D (Author) / Gu, Bin (Thesis advisor) / Hong, Yili (Thesis advisor) / Chen, Peiyu (Committee member) / Arizona State University (Publisher)
Created2019
Description
An individual’s reputation can be beneficial or detrimental to their exchanges with others,
and these exchanges may be critical for achieving evolutionary goals, such as reproduction.
Depending on their reputation, an individual may or may not gain access to resources in order to
achieve their evolutionary goals. Reputation is typically described as being “positive” and
“negative,” but the current study aimed to identify potential nuances to reputations beyond the
traditional dichotomy. It was hypothesized that different types of reputations (such as “friendly”,
“dishonest”, and “aggressive”) would group together in categories beyond “positive” and
“negative.” Additionally, individuals with different life history strategies might find different
reputations important, because the reputations they find most important may help them get the
kinds of resources they need to attain their specific evolutionary goals. Therefore, it was also
predicted that the importance individuals place on different types of reputations would vary as a
function of life history strategy. Exploratory factor analysis identified a five factor structure for
reputations. Individuals also placed varying levels of importance on different types of
reputations, and found some reputations more important than others depending on their life
history strategy. This study demonstrates that reputational information is more nuanced than
previously thought and future research should consider that there may be more than just
“positive” and “negative” reputations in social interactions.
and these exchanges may be critical for achieving evolutionary goals, such as reproduction.
Depending on their reputation, an individual may or may not gain access to resources in order to
achieve their evolutionary goals. Reputation is typically described as being “positive” and
“negative,” but the current study aimed to identify potential nuances to reputations beyond the
traditional dichotomy. It was hypothesized that different types of reputations (such as “friendly”,
“dishonest”, and “aggressive”) would group together in categories beyond “positive” and
“negative.” Additionally, individuals with different life history strategies might find different
reputations important, because the reputations they find most important may help them get the
kinds of resources they need to attain their specific evolutionary goals. Therefore, it was also
predicted that the importance individuals place on different types of reputations would vary as a
function of life history strategy. Exploratory factor analysis identified a five factor structure for
reputations. Individuals also placed varying levels of importance on different types of
reputations, and found some reputations more important than others depending on their life
history strategy. This study demonstrates that reputational information is more nuanced than
previously thought and future research should consider that there may be more than just
“positive” and “negative” reputations in social interactions.
ContributorsPatterson, Danielle Nicole (Author) / Aktipis, Athena (Thesis director) / Corbin, William (Committee member) / West, Stephen G. (Committee member) / Ayers, Jessica D. (Committee member) / Department of Psychology (Contributor) / School of Human Evolution & Social Change (Contributor) / Barrett, The Honors College (Contributor)
Created2020-12