Robert P. Biuk-Aghai

Learn More
While traditional workflow management systems have proven useful in supporting well-defined organizational processes, they are less suitable for the support of less welldefined, emergent processes. These kinds of processes are better supported by systems which are based on the notion of workspaces. The research prototype LiveNet, which allows workspaces to(More)
Wikis, best represented by the popular and highly successful Wikipedia system, have established themselves as important components of a collaboration infrastructure. We suggest that the complex network of user-contributors in volunteer-contributed wikis constitutes a digital ecosystem that bears all the characteristics typical of such systems. This paper(More)
This paper reports on the development of the next generation of the MacauMap handheld digital tourist guide application. MacauMap is a tourism-oriented map application for the Macau territory. It includes common map viewing and navigation functions, searching functions, hotel, restaurant, and tourist guides (including photos), a bi-lingual (English/Chinese)(More)
Collaborative writing through wikis has become increasingly popular in recent years. When users contribute to a wiki article they implicitly establish a co-authorship relationship. Discovering these relationships can be of value, for example in finding experts on a given topic. However, it is not trivial to determine the main co-authors for a given author(More)
Wikis have become a popular online collaboration platform. Their open nature can, and indeed does, lead to a large number of editors of their articles, who create a large number of revisions. These editors make various types of edits on an article, from minor ones such as spelling correction and text formatting, to major revisions such as new content(More)
Collaborative virtual environments are becoming an intrinsic part of professional practices. In addition to providing collaboration support, they have the potential to collect vast amounts of data about collaborative activities. The aim of this research is to utilize this data effectively, extract meaningful insights out of it and feeding discovered(More)
Wiki are popular platforms for collaborative editing. In volunteer-driven wikis such as Wikipedia, which attracts millions of authors editing articles on a diverse range of topics, contributors' editing activity results in certain semantic coverage of topic areas. Obtaining an understanding of a given wiki's semantic coverage is not easy. To solve this(More)
Departmental workflows within a digital business ecosystem are often executed concurrently and required to share limited number of resources. However, unexpected events from the business environment and delay in activities can cause temporal exceptions in these workflows. Predicting temporal exceptions is a complex task since a workflow can be implemented(More)
Web-based collaboration is becoming increasingly common. Often such collaboration exhibits emergent characteristics, for which systems based on a notion of workspaces provide suitable support. Virtual teams collaborating in this manner create virtual organizational structures, the capture and retention of which into organizational memory promises to be of(More)