Online communities need regular maintenance activities such as moderation and data input, tasks that typically fall to community owners. Communities that allow all members to participate in maintenance tasks have the ...
详细信息
ISBN:
(纸本)1581139985
Online communities need regular maintenance activities such as moderation and data input, tasks that typically fall to community owners. Communities that allow all members to participate in maintenance tasks have the potential to be more robust and valuable. A key challenge in creating member-maintained communities is building interfaces, algorithms, and social structures that encourage people to provide high-quality contributions. We use Karau and Williams' collective effort model to predict how peer and expert editorial oversight affect members' contributions to a movie recommendation website and test these predictions in a field experiment with 87 contributors. Oversight increased both the quantity and quality of contributions while reducing antisocial behavior, and peers were as effective at oversight as experts. We draw design guidelines and suggest avenues for future work from our results. Copyright 2005 ACM.
One of the outcomes of massive adoption of technology is that much of daily technology use and consumption is embedded into "unremarkable" daily life routines. Occasionally, these routines undergo major shif...
详细信息
ISBN:
(纸本)1581139985
One of the outcomes of massive adoption of technology is that much of daily technology use and consumption is embedded into "unremarkable" daily life routines. Occasionally, these routines undergo major shifts, often in conjunction with major life events such as marriage, birth of a child, or a residential move. We propose a model of settling into a new location as a function of balance between the pull of the things left behind and the demands of the new and unknown. It is through this experience of being unsettled that we explore the processes of behavior adjustment and re-evaluation of old patterns of technology use as it relates to the old location and the demands of the new location. Copyright 2005 ACM.
Tangible user interfaces, which provide interactivity using real physical objects, hold enormous promise for children. Exploring and manipulating physical objects is a key component of young children's learning. T...
详细信息
ISBN:
(纸本)1595930027
Tangible user interfaces, which provide interactivity using real physical objects, hold enormous promise for children. Exploring and manipulating physical objects is a key component of young children's learning. The educational power of digital technology for children has typically been limited by the fact that users explore and manipulate abstract two-dimensional screen-based representations, and not real physical objects. Embedding interactivity into physical objects, therefore, allows the "best of both worlds"- supporting traditional exploratory play with physical objects that can be extended and enhanced by the interactive power of digital technology. Participants in this SIG are invited to share ideas regarding the design and development of tangible interfaces, and to bring demos or slides/videos showing work in this area. Participants will review as many examples as time allows, and discuss the issues surrounding design and development of such interfaces. A primary goal of this SIG is to foster the development of a community of researchers and practitioners who are focused on designing and developing tangible interfaces for children.
We introduce CrossY, a simple drawing application developed as a benchmark to demonstrate the feasibility of goal crossing as the basis for a graphical user interface. We show that crossing is not only as expressive a...
详细信息
As we have moved to a more technology-based classroom, much attention has been paid to using computers to present material. computer-based presentations can be a powerful tool for faculty, but as more and more student...
详细信息
There are a wide variety of ways to present information at the front of a classroom. These include chalk on a blackboard, markers on a whiteboard, pens on transparencies, and computer projection systems. While compute...
详细信息
ISBN:
(纸本)1581137982
There are a wide variety of ways to present information at the front of a classroom. These include chalk on a blackboard, markers on a whiteboard, pens on transparencies, and computer projection systems. While computer-based presentation systems provide many opportunities both in and out of the classroom, there may also be many limitations. In-class spontaneity and dynamic exposition might be restricted. Class preparation time might increase dramatically when compared to the amount required to prepare handwritten materials. Certain presentation techniques may no longer be available. This paper will introduce a computer-based presentation system modeled on handwritten transparencies. It will then discuss how it addresses the above issues as well as how it can be used in and out of the classroom. These will be explored in the context of its use while teaching an undergraduate discrete mathematics course. Copyright 2004 ACM.
Nowadays, the performance of mobile devices such as personal digital assistants (PDA) or cell phones are rapidly improving. This improvement increased the demand for various functions in mobile devices. Among them, em...
详细信息
Nowadays, the performance of mobile devices such as personal digital assistants (PDA) or cell phones are rapidly improving. This improvement increased the demand for various functions in mobile devices. Among them, embedded speech recognizers are one of the major research topics. To guarantee an acceptable performance, the efficient usage of the hardware resources is very important. In this paper, we introduce our embedded speech recognizer and several important technologies implemented in it used to reduce hardware resources.
This paper sets forth a new technique for working with young children as design partners. Mixing ideas is presented as an additional Cooperative Inquiry design technique used to foster effective collaboration with you...
详细信息
This study examined the effects of synchrony and the number of cues on the person perception process in computer-mediated communication. One hundred and forty-two participants in groups of three or four engaged in col...
详细信息
暂无评论