This paper explores the transformative capacity of engaging teachers in constructive dialogue within ICT professional development activity. The paper reports on one aspect of an Australian Research Council funded Linkage project that is concerned with models of teacher Information and Communication Technologies (ICT) professional development that result in multiliterate teaching practices. The ...

The basic hypothesis of this research project is that since the perception and appropriation of affordances vary across cultural dimensions, representational guidance may be culturally relative. An experimental study was conducted to evaluate this hypothesis. The study design consisted of three independent groups of dyads from similar or different cultures (American-American, American-Chinese, ...

Annotated email corpora are necessary for evaluation and training of machine learning summarization techniques. The scarcity of corpora has been a limiting factor for research in this field. We describe our process of creating a new annotated email thread corpus that will be made publicly available. We present the trade-offs of the different annotation methods that could be used.

The utilization of social media material in journalistic workflows is increasing, demanding automated methods for the identification of misand disinformation. Since textual contradiction across social media posts can be a signal of rumorousness, we seek to model how claims in Twitter posts are being textually contradicted. We identify two different contexts in which contradiction emerges: its b...

The Maryland Electronic Learning Community (MELC) is part of the Baltimore Learning Community, a Challenge Grant project funded by the U.S. Department of Education. Created as a partnership between the Baltimore City Public Schools, the University of Maryland, and corporate and public sponsors, MELC was designed to investigate how an electronic learning community could be created around the dev...

We use fine-grained longitudinal data of user activities in a leading enterprise software vendor’s Internet-enabled community network to explore knowledge contribution and exchange patterns among countries. We measure knowledge contribution using data on 1.8 million forum discussion threads involving more than 276,000 active users from 224 countries over the period of 2004 2010. We find that a ...

In this paper, we highlight a concern with using online discussion for learning. We argue that there is a lack of technological support for the development of personalised knowledge representation for most online discussion forums. Analyses of existing discussion forums suggest that there is a range of collective knowledge representation mechanisms which support a group or a community of learne...

A number of software environments have been developed as media to support collaborative knowledge building, typically featuring a Web-based threaded discussion facility. We have recently developed such a system, known as WEBGUIDE. The distinctive feature of this system is support for structuring collaboration and knowledge construction with personal, group and comparison perspectives. While pil...