Cliff Lampe's research while affiliated with University of Michigan and other places

Publications (105)

Article
Online retributive harassment refers to a range of abusive online behaviors targeted at offenders with the intent of sanctioning norm violations. Online retributive harassment is common in online interactions, can be devastating in its effect, and is hard to moderate. We examined the role that negative interface cues (i.e., Dislikes, flags) might h...
Article
In this article, we examine how a loosely knit, mediated community in the massively multiplayer online game EverQuest II rapidly coalesced to carry out collective action in response to a request to help a terminally ill child. We examine the factors that motivated hundreds of people to donate their time, expertise, and in-game resources to people t...
Preprint
Full-text available
Understanding how ML models work is a prerequisite for responsibly designing, deploying, and using ML-based systems. With interpretability approaches, ML can now offer explanations for its outputs to aid human understanding. Though these approaches rely on guidelines for how humans explain things to each other, they ultimately solve for improving t...
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Past research suggests Facebook use is linked to perceptions of social capital, a concept that taps into the resources people gain from interactions with their social network. In this study, we examine a sample of public Facebook status updates (N=20,000) for instances in which users request a response from their network. These attempts to mobilize...
Preprint
Substance Use Disorders (SUDs) involve the misuse of any or several of a wide array of substances, such as alcohol, opioids, marijuana, and methamphetamine. SUDs are characterized by an inability to decrease use despite severe social, economic, and health-related consequences to the individual. A 2017 national survey identified that 1 in 12 US adul...
Article
Norms are central to how online communities are governed. Yet, norms are also emergent, arise from interaction, and can vary significantly between communities---making them challenging to study at scale. In this paper, we study community norms on Reddit in a large-scale, empirical manner. Via 2.8M comments removed by moderators of 100 top subreddit...
Article
Most models of criminal justice seek to identify and punish offenders. However, these models break down in online environments, where offenders can hide behind anonymity and lagging legal systems. As a result, people turn to their own moral codes to sanction perceived offenses. Unfortunately, this vigilante justice is motivated by retribution, ofte...
Conference Paper
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With rising use of multiple social network sites (SNSs), people now have an increasing number of options for audience, media, and other SNS features at their disposal. In this paper, our goal is to build machine learning models that can predict people»s multi-SNS posting decisions, thus enabling technology that can personalize and augment current S...
Conference Paper
The ACM SIGCHI community has been at the forefront of addressing issues of equity and inclusivity in the design and use of technology, accounting for various aspects of users' identities such as gender, ethnicity, and sexuality. With this panel, we wish to explore how we, as SIGCHI, might better target similar goals of equity and inclusivity - acro...
Conference Paper
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This study documents users' changes in psychological wellbeing across the lifecycle of their participation in an online community. Through in-depth interviews with 30 long-term users of Everything2.com, and content analysis of their posts, we found that psychological wellbeing plays a large role in the evolution of how users participate in the comm...
Article
Adults who are 65 years or older have increasingly adopted social network sites (SNSs), Facebook in particular. Yet the ramifications of SNS use in this population remain understudied. Using a nationally representative sample of U.S. adults (N = 2,003), this study focuses on Facebook users (N = 1,138) and examines patterns of Facebook use by younge...
Article
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Online harassment is a pervasive and pernicious problem. Techniques like natural language processing and machine learning are promising approaches for identifying abusive language, but they fail to address structural power imbalances perpetuated by automated labeling and classification. Similarly, platform policies and reporting tools are designed...
Conference Paper
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Public organizations increasingly collaborate with civic-minded technologists to develop digital interventions for public issues through civic hacking projects. However, civic hacking cannot be a long-term solution without a proper handover and sustainability plan. In this study, we investigated how to design sustainable civic hacking projects for...
Conference Paper
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Courts are increasingly adopting online information and communication technology, creating a need to consider the potential consequences of these tools for the justice system. Using survey responses from 209 litigants who had recently used an online case resolution system, we investigate factors that influenced litigants' experiences of fairness an...
Conference Paper
Many social media platforms provide features for commenting, which often provide affordances for people to give feedback to others. Around the theme of advancing research about online comments, this workshop aims to bring together a diverse range of researchers for cross-discipline community building and especially dedicated time for productive, ea...
Article
HCI education reflects the continual evolution of HCI, embracing the changing landscapes of technology, infrastructure, and technology use. This forum aims to provide a platform for HCI educators, practitioners, researchers, and students to share their perspectives, reflections, and experiences related to HCI education. --- Sukeshini Grandhi, Edito...
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Anonymous interactions may have important implications for adolescents’ social and psychological development. In this article, we use semi-structured interview data collected from US adolescents aged 13–18 years (N = 22) to explore how the specific affordances of an online platform that enables selective anonymity shape adolescents’ practices and p...
Conference Paper
Many existing studies of social media focus on only one platform, but the reality of users' lived experiences is that most users incorporate multiple platforms into their communication practices in order to access the people and networks they desire to influence. In order to better understand how people make sharing decisions across multiple sites,...
Conference Paper
Undergraduates interviewed about privacy concerns related to online data collection made apparently contradictory statements. The same issue could evoke concern or not in the span of an interview, sometimes even a single sentence. Drawing on dual-process theories from psychology, we argue that some of the apparent contradictions can be resolved if...
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Increasing numbers of American parents identify as lesbian, gay, bisexual, or transgender (LGBT). Shifting social movements are beginning to achieve greater recognition for LGBT parents and more rights for their families; however, LGBT parents still experience stigma and judgment in a variety of social contexts. We interviewed 28 LGBT parents to in...
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Demonstrations that analyses of social media content can align with measurement from sample surveys have raised the question of whether survey research can be supplemented or even replaced with less costly and burdensome data mining of already-existing or “found” social media content. But just how trustworthy such measurement can be—say, to replace...
Conference Paper
From amateur creativity to social media status updates, nearly every Internet user is also a content creator—but who owns that content? Policy, including intellectual property rights, is a necessary but often invisible part of online content sharing and social computing environments. We analyzed the copyright licenses contained in the Terms of Se...
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Recent years have seen an increase in the amount of statistics describing different phenomena based on “Big Data.” This term includes data characterized not only by their large volume, but also by their variety and velocity, the organic way in which they are created, and the new types of processes needed to analyze them and make inference from them...
Conference Paper
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Social media sites are increasingly adopted by small nonprofit organizations (NPOs) to help them meet their public engagement goals. However, several characteristics of small organizations make it hard for them to effectively use social media sites. We present findings from interviews with 26 small NPOs' social media professionals on how they use m...
Conference Paper
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While extensive research has investigated the risks of children sharing their personal information online, little work has investigated the implications of parents sharing personal information about their children online. Drawing on 102 interviews with parents in the U.S., we investigate how parents decide what to disclose about their children on s...
Article
Most electronic behavior traces available to social scientists offer a site-centric view of behavior. We argue that to understand patterns of interpersonal communication and media consumption, a more person-centric view is needed. The ideal research platform would capture reading as well as writing and friending, behavior across multiple sites, and...
Conference Paper
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Recently, many community nonprofit organizations (NPOs) have used social media to support a variety of organizational public engagement goals. Using survey and content analysis, we explored 31 community environmental NPOs' social media practices and we found there were many differences in how Facebook and Twitter were used in these NPOs. Facebook w...
Article
Challenges of the local context such as encouraging civic engagement and facilitating collaboration to address local issues have motivated researchers and practitioners to explore the role of technologies in supporting life in cities, neighborhoods, and local communities. The goal of this workshop is to open a discussion on how to design, build and...
Chapter
Social capital refers to the benefits that people receive through their connections to others in their social network. Various theorists have described the concepts of social capital in different ways, but the common denominator is that people are able to access a variety of resources through their relationships to others, and the nature of these r...
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The vast majority of YouTube videos never become popular, languishing in obscurity with few views, no likes, and no comments. We use information theoretical measures based on entropy to examine how time series distributions of common measures of popularity in videos from YouTube's "Trending videos" and "Most recent" video feeds relate to the theore...
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Facebook-enabled resource mobilization attempts—broadcasted status updates in which people ask questions or request information, favors, or other forms of assistance from one’s network—can provide insight into social capital dynamics as they unfold on Facebook. Specifically, these requests and the responses they receive can serve as a window into h...
Article
Research in computer-mediated communication has consistently asserted that Facebook use is positively correlated with social capital. This research has drawn primarily on Williams’ (2006) bridging and bonding scales as well as behavioral attributes such as civic engagement. Yet, as social capital is inherently a structural construct, it is surprisi...
Chapter
Research on online communities raises a number of challenges. It is difficult to get access to usage data, to users (to interview), and to the system itself to introduce new features (e.g., participation incentive mechanisms). One solution is for researchers to create an online community themselves. Although this provides more control and access, i...
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This study explores the relationship between perceived bridging social capital and specific Facebook-enabled communication behaviors using survey data from a sample of U.S. adults (N=614). We explore the role of a specific set of Facebook behaviors that support relationship maintenance and assess the extent to which demographic variables, time on s...
Conference Paper
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The BBC, New York Times and other media channels are abuzz with reports about Mark Zuckerberg’s desire to connect everyone on the planet through social media. Missing from these online articles are reports of the realities “bottom of the pyramid” users in developing countries encounter when trying to access Facebook. This panel brings together rese...
Conference Paper
Research suggests that social network sites can support social capital exchanges, which are often triggered by requests for assistance, such as seeking recommendations or asking for favors. Responsiveness to these requests for help is important to study because these interactions have the potential to affect users' overall satisfaction with the exp...
Article
Online communities depend on the persistent contributions of heterogeneous users with diverse motivations and ways of participating. As these online communities exist over time, it is possible that users change the way in which they contribute to the site. Through interviews with 31 long-term members of a user-generated content community who have d...
Article
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Citizen journalists can participate in political user-generated news websites in différent ways, including providing content, discussing with other users, and rating the content posted on the site. Also, users of these types of sites form impressions of other users based on the information provided by different sources. The information supplied by...
Conference Paper
Full-text available
Past research suggests Facebook use is linked to perceptions of social capital, a concept that taps into the resources people gain from interactions with their social network. In this study, we examine a sample of public Facebook status updates (N=20,000) for instances in which users request a response from their network. These attempts to mobilize...
Article
In this short introductory piece, we define open collaboration and contextualize the diverse articles in this special issue in a common vocabulary and history. We provide a definition of open collaboration and situate the phenomenon within an interrelated set of scholarly and ideological movements. We then examine the properties of open collaborati...
Conference Paper
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Past research has demonstrated a link between perceptions of social capital and use of the popular social network site, Facebook. Williams' Internet Social Capital Scales, based on Putnam's formulation, tap into sub-dimensions of social capital that have not been broadly used yet may enlighten our understanding of the different ways in which connec...
Conference Paper
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Although Facebook is the largest social network site in the U.S. and attracts an increasingly diverse userbase, some individuals have chosen not to join the site. Using survey data collected from a sample of non-academic staff at a large Midwestern university (N=614), we explore the demographic and cognitive factors that predict whether a person ch...
Conference Paper
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Research has identified a link between Facebook use and bridging social capital, which speaks to the informational resources provided by a diverse network of connections. In order to explicate the mechanism through which Facebook may help individuals mobilize these embedded informational and support resources, this study explores the role of bridgi...
Conference Paper
Social media question asking, in which people use Internet technologies to solicit help from other people, is an increasingly common way for people to find information. This workshop brings together researchers studying social media question asking from a variety of perspectives, including social scientists seeking to understand and describe the ph...
Conference Paper
We (the authors of CSCWs program) have finite time and energy that can be invested into our publications and the research communities we value. While we want our work to have the most impact possible, we also want to grow and support productive research communities within which to have this impact. This panel discussion explores the costs and benef...
Conference Paper
In this paper we explore effects of perceived ideology of news outlets on consumption and sharing of news in Twitter. Selective exposure theory suggests that when given access to a broad range of information, people will tend to consume and share news that confirms their existing beliefs and biases. We find that users share news in similar ways reg...
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By understanding how social network sites work, researchers can better assess their effects on different kinds of social interactions as well as the associated benefits and risks. The Web extra at http://youtu.be/_Dz9FR1Bf-U is a video interview with column editor John Riedl, who discusses the topics and writing styles that work best if you're inte...
Article
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In this paper, we explore the relationship between Facebook users' privacy concerns, relationship maintenance strategies, and social capital outcomes. Previous research has found a positive relationship between various measures of Facebook use and perceptions of social capital, i.e., one's access to social and information-based resources. Other res...
Article
The HCI research community grows bigger each year, refining and expanding its boundaries in new ways. The ability to effectively review submissions is critical to the growth of CHI and related conferences. The review process is designed to produce a consistent supply of fair, high-quality reviews without overloading individual reviewers; yet, after...
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User activities in peer-production communities have mainly been examined under the assumption that individuals are rational individuals who are always cognizant of what they are doing and why. We argue that not all use is the same; while some behaviors are governed by conscious motivations, others may be a habitual response that is developed out of...
Article
In this paper, we examine how user ratings of content produced for an online community are taken into account by administrators when they decide whether to delete content. Incorporating about 10 years of server data from the online peer-production community Everything2, we looked at how specific features of voting predicted deletion of posts. We fo...
Article
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Facebook has become an increasingly important tool for people engaging in a range of communication behaviors, including requesting help from their social network to address information needs. Through a study of 614 staff members at a large university, we show how social capital, network characteristics, and use of Facebook are related to how useful...
Conference Paper
Social computing and social media systems depend on contributions from users. We posit the existence of a latent demand for contribution: many users want to contribute but don't. We then test a simple interface that can induce these users to actually contribute: we display a popup window asking users to contribute. In a real-world randomized field...
Conference Paper
In this paper, we examine how specific features of participation and feedback can predict the length of membership within a user generated content based online community called 'Everything2'. Examining almost 10 years of server data we found that not all feedback is the same: feedback on the user's initial contribution was the strongest factor expl...
Conference Paper
One of the biggest challenges faced by social media sites like Wikipedia is how to motivate users to contribute content. Research continues to demonstrate that only a small percentage of users contribute to user-generated content sites. In this study we assess the results of a Wikimedia Foundation initiative, which had graduate and undergraduate st...
Conference Paper
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Social media is one way that individuals share information, present themselves, and manage their social interactions in both personal and professional contexts. While social media benefits have been examined in the literature, relatively little attention has been paid to the relationship of privacy to these benefits. Privacy has traditionally been...
Conference Paper
Social media has been widely adopted by organizations in the recent past, and public sector organizations are also showing an increased interest in using this tool to meet their goals. In this paper, we describe three cases of social media adoption by public sector organizations, and the struggles faced in that implementation. We argue through the...
Chapter
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1. Introduction During the past decade usage of online social network sites has grown dramatically, now rivaling search engines as the most visited Internet sites (Experian Hitwise, 2010). With the rise of such mega‐sites as Facebook, which by itself now boasts more than 400 million active users around the world (Facebook Press Room, 2010), online...
Conference Paper
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This poster presents a preliminary analysis of data collected from staff personnel at a large U. S. university regarding their use of the social network site (SNS) Facebook in their personal and professional lives. Sixty-five percent of online American adults now have a profile on a SNS, and Facebook is increasingly utilized in organizational setti...
Article
In light of a thriving interest in social media’s ability to enhance various forms of political and organizational communication, a survey of 169 representatives from 53 national advocacy/activist groups operating in the United States was conducted to assess the extent to which these groups perceive and use social media as tools for facilitating ci...
Article
Research community has been studying the social dynamics of new technologies that suggests about the role of social science today. The Coburn Report, prepared by the staff of Sen. Tom Coburn (R-OK), is entitled 'The National Science Foundation: Under the Microscope', focuses on the number of researches. The report states that a significant percenta...
Article
Research on social network sites (SNSs) typically employ measures that treat SNS use as homogenous although the user-base, user practices, and feature sets of these tools are increasingly diverse. Using a uses and gratifications approach, we address this problem by reconceptualizing SNSs as collections of features. Survey data collected from underg...
Article
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Social media has the potential to foster interactions between policy makers, government officials, and their constituencies. Opportunities to receive feedback from residents, inform them of government-provided opportunities, and increase engagement with the governance process have all been proposed as ways social media can play a role in Governance...
Conference Paper
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Online communities, while primarily enacted through technology-mediated environments, can also include offline meetings between members, promoting interactivity and community building. This study explores the offline interactions of online community members and its subsequent impact on online participation. We argue that offline interactions have a...
Article
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Social network sites such as Facebook are often conceived of as purely social spaces; however, as these sites have evolved, so have the ways in which students are using them. In this study, we examine how undergraduate students use the social network site Facebook to engage in classroom-related collaborative activities (e.g., arranging study groups...
Article
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This study assesses whether Facebook users have different ‘connection strategies,’ a term which describes a suite of Facebook-related relational communication activities, and explores the relationship between these connection strategies and social capital. Survey data (N = 450) from a random sample of undergraduate students reveal that only social...
Chapter
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Social network sites (SNSs) are becoming an increasingly popular resource for both students and adults, who use them to connect with and maintain relationships with a variety of ties. For many, the primary function of these sites is to consume and distribute personal content about the self. Privacy concerns around sharing information in a public or...
Article
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In the 2008 U.S. presidential election, social network sites such as Facebook allowed users to share their political beliefs, support specific candidates, and interact with others on political issues. But do political activities on Facebook affect political participation among young voters, a group traditionally perceived as apathetic in regard to...