Content analysis: What are they talking about?

Quantitative content analysis is increasingly used to surpass surface level analyses in Computer-Supported Collaborative Learning (e.g., counting messages), but critical reflection on accepted practice has generally not been reported. A review of CSCL conference proceedings revealed a general vagueness in definitions of units of analysis. In general, arguments for choosing a unit were lacking and decisions made while developing the content analysis procedures were not made explicit. In this article, it will be illustrated that the currently accepted practices concerning the ‘unit of meaning’ are not generally applicable to quantitative content analysis of electronic communication. Such analysis is affected by ‘unit boundary overlap’ and contextual constraints having to do with the technology used. The analysis of e-mail communication required a different unit of analysis and segmentation procedure. This procedure proved to be reliable, and the subsequent coding of these units for quantitative analysis yielded satisfactory reliabilities. These findings have implications and recommendations for current content analysis practice in CSCL research

Reflexions on Cultural Bias and Adaption

SvenskMud1 is an Internet-accessible Multi-User Domain (MUD) system. But, in contrast to 99% of all Internet-accessible MUDs, SvenskMud is not a global community. SvenskMud is instead the first vernacular (i.e. non-English speaking) MUD in the world, and the only Swedish-speaking MUD in Sweden today. This paper problematizes four questions regarding cultural attitudes and their relationship to CMC technologies. Moving from the historical and the general to the present and the specific I will in turn discuss the following questions: (1) how have American cultural attitudes (historically) shaped the development and use of CMC technologies? (2) how do cultural attitudes (today) shape the implementation and use of CMC technologies? (3) how do cultural attitudes manifest themselves in the implementation and use of MUDs? (4) how do cultural attitudes manifest themselves in the implementation\ud and use of SvenskMud

Distance, multimedia and web delivery in surveying and GIS courses at the University Of Southern Queensland

[Abstract]: The University of Southern Queensland has been involved with the distance education of surveying courses for over 25 years. In recent times, staff of the Surveying and Land Information Discipline, and the University as a whole, have embarked on multimedia enhancement and web delivery of curricula. This paper examines some of the initiatives undertaken to enhance the delivery of educational materials and discusses some of the issues involved in the effective delivery of distance education materials. The significant experience in the delivery of traditional educational materials has proven to be an advantage in the repackaging and enhancement of teaching materials. Delivery of education to off-campus students requires a significant support infrastructure which is often not recognised by new entrants into the flexible delivery arena. Traditional support mechanisms such as phone, fax and standard media (eg. videos, audio tapes etc) are being replaced by email, ‘electronic’ discussion groups, CDs and internet resources. These enhancements, when developed professionally, require a significant commitment of resources and expertise and often require a team approach to their design and development. Access by off-campus students to internet services and affordable software packages also require careful consideration in the design and offering of distance education materials

New Kids on the Net. Deutschsprachige Philosophie elektronisch\ud

Mailing lists tend to be shaped by core groups of dedicated participants, developing their interests and opinions in front of a predominantly receptive audience of subscribers. A new kind of communicative praxis is established on top of some guidelines on how computers should exchange data: participation in quasi-instantaneous, globally distributed, non-hierarchical discursive interchange. Computer networks, as is well known, are not confined by any historical or geographical borders. As a consequence, the cultural impact of the technical devices seems to affect arbitrary collections of users availing themselves of the necessary equipment and know-how. One of the most dazzling experiences of communication on the net, it has correctly been pointed\ud out, is its global egalitarianism. While it is true that large parts of the planet are still excluded and the predominance of the English language imposes important\ud constraints on the participants, it is difficult to avoid an initial euphoria, a cosmopolitan state of mind, as one becomes familiar with a machinery that can support spatially unlimited cooperation between equals with a minimum of\ud administrative overhead

Ethics @ email: Do new media require new ethics?

As more and more day-to-day interaction in business and academia has begun to take place through electronic mail, probably every one of its users has experienced some breakdown. By now, we have come to expect occasional hardware failures, but the human ones still catch us by surprise. That message we dashed off with no ill intent is received with hard feelings. Or it is forwarded to someone we never meant should see it. Or, unbeknown to us, it is read by our boss. E-mail has raised a host of ethical questions about how we treat one another and how we work, but its very newness as a medium can make the answers more obscure

Towards Dual-functional Radar-Communication Systems: Optimal Waveform Design

We focus on a dual-functional multi-input-multi-output (MIMO) radar-communication (RadCom) system, where a single transmitter communicates with downlink cellular users and detects radar targets simultaneously. Several design criteria are considered for minimizing the downlink multi-user interference. First, we consider both the omnidirectional and directional beampattern design problems, where the closed-form globally optimal solutions are obtained. Based on these waveforms, we further consider a weighted optimization to enable a flexible trade-off between radar and communications performance and introduce a low-complexity algorithm. The computational costs of the above three designs are shown to be similar to the conventional zero-forcing (ZF) precoding. Moreover, to address the more practical constant modulus waveform design problem, we propose a branch-and-bound algorithm that obtains a globally optimal solution and derive its worst-case complexity as a function of the maximum iteration number. Finally, we assess the effectiveness of the proposed waveform design approaches by numerical results.Comment: 13 pages, 10 figures. This work has been submitted to the IEEE for possible publication. Copyright may be transferred without notice, after which this version may no longer be accessibl

First Looks: CATaC '98\ud

The First International Conference on Cultural Attitudes Towards Technology and Communication (CATaC’98), and its affiliated publications, seek to bring together current insights from philosophy, communication theory, and cultural sciences in an interdisciplinary dialogue. The synthesis of disparate scholarly ideas will shed greater light on just how culture impacts on the use and appropriation of new communications technologies. Beyond the individual contributions themselves, some of our most significant insights will emerge as we listen and discuss carefully with one another during the conference itself. As a way of preparing for that discussion, I offer the following overview of the CATaC papers and abstracts, along with a summary of the insights and questions they suggest