Permutations of cooperative work practices:

A prediction technique for disconnection detection serves as the basic layer of a pervasive architecture for cooperative work and activity coordination in MANETs The widespread availability of network-enabled handheld devices (for example, PDAs with Wi-Fi capabilities) has made the development

Data are a fundamental component of science and engineering work, and the ability to share data is critical to the validation and progress of science. Data sharing and reuse in some fields, however, has proven to be a difficult problem. This paper argues that the development of effective CSCW

configurations, one which is identical to the state-of-the-art in intelligent tutoring technology (Immediate Feedback), and one which is based on a long line of investigation of the use of worked out examples for instruction (Delayed Feedback). While our conclusions remain tentative due to the small sample size

Build, creating software from source code, is a fundamental activity in software development. Build teams manage this process and en-sure builds are produced reliably and efficiently. This paper presents an exploration into the nature of build teams—how they form, work, and relate to other teams

Annotation is central to iterative reviewing and revising activities in asynchronous collaborative writing. Currently most digital annotation models and systems assume static context information and provide far less functionality than physical annotations. We extend prior annotation research by Marshall and Cadiz and design an activity-oriented annotation model to mimic the rich functionality of physical annotations for an enhanced collaborative writing process. In this model, we define an annotation life cycle and support annotation version control. We implement a collaborative writing system that supports improved in-situ communication and cross-role feedback based on our annotation model.

Newcomers to online communities often have trouble understanding the context and activities of other participants. But this is not just a problem to newcomers; even established members can struggle to comprehend social dynamics in their own communities. Social translucence is a conceptual approach to designing systems that facilitate better sensemaking about others and their actions in online social settings. We have been developing a framework to facilitate socially translucent tools and extensions for distributed contributor communities such as Wikipedia. This demo presents example tools and an evolving architecture to illustrate characteristics of social translucence.

Professional networking is a primary goal of people attending conferences and events. Over the past year we have develop online social networking and community tool for events, Pathable, to help attendees meet the right people. Pathable provides an online directory of attendee profiles, communication tools, and a recommendation system optimized to help people find eac based on commonalities. We performed a questionnaire study at a pathable-enabled event to assess the importance of social networking, and found that quality of conversations and sense of community were strong predictors of who said they w year after year. In addition, the more people used Pathable to meet others at the event, the greater their event attachment and sense of community. Based on lessons learned from an of seventeen Pathable-enabled events, we provide guidelin leveraging social software to optimize professional networking and community development at events.

distributed, behavior-based architecture that incorporates the use of mathematically-modeled motivations (such as impatience and acquiescence) within each robot to achieve adaptive action selection. Since cooperative robotic teams usually work in dynamic and unpredictable environments, this software

In tree-based multicast systems, a relatively small number of interior nodes carry the load of forwarding multicast messages. This works well when the interior nodes are highly available, d d cated infrastructure routers but it poses a problem for application-level multicast in peer-to-peer systems