A bibliography is traditionally characterized by the judgments, bounded by explicit selection criteria, made by a single compiler. Because these criteria concern the attributes ascribed to a work and the needs of readers, bibliographic work is largely conceptual even across technological eras and domains. Yet, the development of networked information services, made possible by WWW infrastructur...

When collaborators are doing a task and then they interactively explore some subtask that emerges, they are collaborating beneath the surface of the task. Depth of collaboration refers to both the frequency of, and the degree to which, students collaborate beneath the surface. In this paper we examine the notion of depth in relation to collaborative learning. We provide evidence that the extent...

In this paper, we consider collaborative filtering as a ranking problem. We present a method which uses Maximum Margin Matrix Factorization and optimizes ranking instead of rating. We employ structured output prediction to optimize for specific non-uniform ranking scores. Experimental results show that our method gives very good ranking scores and scales well on collaborative filtering tasks.

Increasingly, organisations are emphasizing more cooperative trading relationships with the view to constructing long-term collaborative partnerships. Often firms introduce Internet-based systems to integrate strategic suppliers into collaborative networks. In reality, many of these collaborative supply chain systems have underperformed or been terminated. Frequently these inter-organisational ...

Though discussion of the teacher factor in ICT-enabled science learning abounds in the literature, the investigation of Teacher Enactments (TEs) of ICT-facilitated lessons through exploring teaching practices is still under-explored and under-recognized. Current studies are still lacking in evidence-based findings of TEs based on the investigation of teaching practices. This study explores the ...

We present the results of a study1 in which we contrast alternative forms of collaborative learning support in the midst of a collaborative design task in which students negotiate between increasing power and increasing environmental friendliness. In this context, we evaluated the instructional effectiveness of four alternative support conditions as well as a goal manipulation. Both manipulatio...

Business Networking is an innovative business paradigm that can help companies to remain competitive in the market. Nevertheless, its practical implementation is very complicated because of the several dimensions that it involves. There are several cases of business network cooperation; however, each one has its particular characteristics that determine its success. This paper addresses the dom...

The effects of three kinds of individual differences (a difference in the knowledge domain, a difference in the Big Five personality, and a difference in nationality) on a knowledge collaboration of the distributed and cooperative KJ method were examined with a groupware in an anonymous environment. The collaboration method has three steps: brainstorming, grouping, and writing. Twelve individua...