نتایج جستجو برای: collaborative
تعداد نتایج: 74124 فیلتر نتایج به سال:
The primary application of collaborate filtering (CF) is to recommend a small set of items to a user, which entails ranking. Most approaches, however, formulate the CF problem as rating prediction, overlooking the ranking perspective. In this work we present a method for collaborative ranking that leverages the strengths of the two main CF approaches, neighborhoodand model-based. Our novel meth...
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A better understanding of how groupware systems have been evaluated in the past can help to frame the discussion of what methods and techniques should be considered for future evaluations. We reviewed all papers from the ACM CSCW conference (1990-1998) that introduced or evaluated a groupware system. Forty-five papers were included in the review. The main findings are that almost one-third of t...
One important goal of employing groupware is to make possible complex collaboration between geographically distributed groups. This requires a dual transformation of both technology and work practice. The challenge is to reduce the complexity of the coordination work by successfully integrating the protocol stipulating the collaboration and the artefact, in form of the groupware application, me...
Awareness is the knowledge about present and past group’s activities and it is a relevant issue for cooperative work. There are many devices that supply awareness information in synchronous collaborative editing systems. However, the current awareness devices have restrictions to both accomplish effective awareness and show the focus of attention identifying the exact place of the participants’...
This paper describes a model for studying collaborative knowledge building (CKB) as a group activity. We integrate the model described by Stahl (2000a) with an analysis based on the principles of cultural historical activity theory (CHAT), using the analysis of a self reflective case study to guide the description. The concept of the CKB activity system is developed, and the role of contradicti...
Purpose – The purpose of this paper is to provide a response to Christiansen’s paper, Ellen Christiansen (2014) “From ‘ethics of the eye’ to ‘ethics of the hand’ by collaborative prototyping”, Journal of Information, Communication and Ethics in Society, Vol. 12 No. 1. Design/methodology/approach – Reflection and critique of Christiansen’s position. Findings – The paper raises questions about th...
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