Proceedings of the 2006 20th anniversary conference on Computer supported cooperative work - CSCW '06, 2006
Ten years ago, Whittaker and Sidner published research on email overload, coining a term that wou... more Ten years ago, Whittaker and Sidner published research on email overload, coining a term that would drive a research area that continues today. We examine a sample of 600 mailboxes collected at a high-tech company to compare how users organize their email now to 1996. While inboxes are roughly the same size as in 1996, our population's email archives have grown tenfold. We see little evidence of distinct strategies for handling email; most of our users fall into a middle ground. There remains a need for future innovations to help people manage growing archives of email and large inboxes.
ABSTRACT How can disproportionate prior exposure cause a behavior to evolve in a population? This... more ABSTRACT How can disproportionate prior exposure cause a behavior to evolve in a population? This article investigates how this mechanism might evolve cooperation in a manner that can overcome the tendency towards defection in human societies. We extend Mark's analysis by testing his emulation model in a social setting where defection is likely, and we offer new models that more accurately capture the learning process of disproportionate prior exposure. Our results suggest that this mechanism can account for some evolution of cooperation, and that its strength is greatly influenced by conditions that alter actors' perceptions of the joint distribution of fitness and cooperation. We conclude by discussing how cultural mechanisms like stories and myths may magnify the evolutionary potential of disproportionate prior exposure in cultural evolution.
Although trust is a lively area of research, it is rarely investigated in countries outside of co... more Although trust is a lively area of research, it is rarely investigated in countries outside of commonly available cross-national public-opinion datasets. In an effort to fill this empirical void and to draw conclusions concerning the general determinants of trust, the current article employs detailed survey data from a frequently overlooked Central Asian country, Uzbekistan, to test the relationship between particularized trust and demographic traits previously identified as influential. While a number of Uzbek demographic characteristics coincide with previously identified determinants of trust, age and education yield negative effects not previously found. Interestingly, individual-level demographic variables become insignificant when controlling for regional, religious, and linguistic variation. We conclude with a discussion of the theoretical implications.
e-Research: transformation in scholarly practice, Jul 2, 2009
... A Picture Is Worth a Thousand Questions. Stephen Ribisi Jr., Kristina Yu, Lori Lambertson. ..... more ... A Picture Is Worth a Thousand Questions. Stephen Ribisi Jr., Kristina Yu, Lori Lambertson. ... Using your unaided eyes as well as the magnifying lens, take a close look at the images in each of the six small photos and write down as many observations as you can. ... 21 Dupont Circle ...
What is the distribution of successful topic starting practices, what characterizes the content o... more What is the distribution of successful topic starting practices, what characterizes the content of large thread-starting messages, and what is the source of that content? A 6-month analysis of almost 40,000 authors in 20 political Usenet newsgroups identified authors who received a disproportionate number of replies. We labeled these authors ''discussion catalysts.'' Content analysis revealed that 95 percent of discussion catalysts' messages contained content imported from elsewhere on the web, about 2/3 from traditional news organizations. We conclude that the flow of information from the content creators to the readers and writers continues to be mediated by a few individuals who act as filters and amplifiers.
Although the social exchange paradigm has produced a vibrant research program, the theoretical tr... more Although the social exchange paradigm has produced a vibrant research program, the theoretical tradition is rarely used to model the structure of social networks outside of experiments and simulations. To address this limitation, we derive power-dependence predictions about network structure and geographic mobility-the outcomes of poweruse-and test these predictions using complete data on competition networks and travel schedules among amateur sports teams. Poisson regression and exponential random graph models provide strong support for our predictions. The findings illustrate exchange dynamics in which status resources desired by teams, coupled with the availability of geographically proximal alternatives, create power and dependence that dictate where and with whom teams compete. Although evidence supports Georg Simmel's classic proposition that networks form on the basis of values and propinquity, we show that this complex dynamic is conditional on power and dependence. We conclude by discussing implications and directions for future research.
Proceedings of the 2006 20th anniversary conference on Computer supported cooperative work - CSCW '06, 2006
Ten years ago, Whittaker and Sidner published research on email overload, coining a term that wou... more Ten years ago, Whittaker and Sidner published research on email overload, coining a term that would drive a research area that continues today. We examine a sample of 600 mailboxes collected at a high-tech company to compare how users organize their email now to 1996. While inboxes are roughly the same size as in 1996, our population's email archives have grown tenfold. We see little evidence of distinct strategies for handling email; most of our users fall into a middle ground. There remains a need for future innovations to help people manage growing archives of email and large inboxes.
ABSTRACT How can disproportionate prior exposure cause a behavior to evolve in a population? This... more ABSTRACT How can disproportionate prior exposure cause a behavior to evolve in a population? This article investigates how this mechanism might evolve cooperation in a manner that can overcome the tendency towards defection in human societies. We extend Mark's analysis by testing his emulation model in a social setting where defection is likely, and we offer new models that more accurately capture the learning process of disproportionate prior exposure. Our results suggest that this mechanism can account for some evolution of cooperation, and that its strength is greatly influenced by conditions that alter actors' perceptions of the joint distribution of fitness and cooperation. We conclude by discussing how cultural mechanisms like stories and myths may magnify the evolutionary potential of disproportionate prior exposure in cultural evolution.
Although trust is a lively area of research, it is rarely investigated in countries outside of co... more Although trust is a lively area of research, it is rarely investigated in countries outside of commonly available cross-national public-opinion datasets. In an effort to fill this empirical void and to draw conclusions concerning the general determinants of trust, the current article employs detailed survey data from a frequently overlooked Central Asian country, Uzbekistan, to test the relationship between particularized trust and demographic traits previously identified as influential. While a number of Uzbek demographic characteristics coincide with previously identified determinants of trust, age and education yield negative effects not previously found. Interestingly, individual-level demographic variables become insignificant when controlling for regional, religious, and linguistic variation. We conclude with a discussion of the theoretical implications.
e-Research: transformation in scholarly practice, Jul 2, 2009
... A Picture Is Worth a Thousand Questions. Stephen Ribisi Jr., Kristina Yu, Lori Lambertson. ..... more ... A Picture Is Worth a Thousand Questions. Stephen Ribisi Jr., Kristina Yu, Lori Lambertson. ... Using your unaided eyes as well as the magnifying lens, take a close look at the images in each of the six small photos and write down as many observations as you can. ... 21 Dupont Circle ...
What is the distribution of successful topic starting practices, what characterizes the content o... more What is the distribution of successful topic starting practices, what characterizes the content of large thread-starting messages, and what is the source of that content? A 6-month analysis of almost 40,000 authors in 20 political Usenet newsgroups identified authors who received a disproportionate number of replies. We labeled these authors ''discussion catalysts.'' Content analysis revealed that 95 percent of discussion catalysts' messages contained content imported from elsewhere on the web, about 2/3 from traditional news organizations. We conclude that the flow of information from the content creators to the readers and writers continues to be mediated by a few individuals who act as filters and amplifiers.
Although the social exchange paradigm has produced a vibrant research program, the theoretical tr... more Although the social exchange paradigm has produced a vibrant research program, the theoretical tradition is rarely used to model the structure of social networks outside of experiments and simulations. To address this limitation, we derive power-dependence predictions about network structure and geographic mobility-the outcomes of poweruse-and test these predictions using complete data on competition networks and travel schedules among amateur sports teams. Poisson regression and exponential random graph models provide strong support for our predictions. The findings illustrate exchange dynamics in which status resources desired by teams, coupled with the availability of geographically proximal alternatives, create power and dependence that dictate where and with whom teams compete. Although evidence supports Georg Simmel's classic proposition that networks form on the basis of values and propinquity, we show that this complex dynamic is conditional on power and dependence. We conclude by discussing implications and directions for future research.
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Papers by E. Gleave