Confession: In the past, I’ve been extremely quick to dismiss the value of Second Life in the context of teaching and learning.
Even worse, my dismissal was not fact-based … and, if truth be told, I’ve gone out of my way to avoid opportunities to ‘gather the facts’ by attending presentations at conferences, conducting my own research online, speaking with my colleagues, etc.
So I, dear reader, am as surprised as any of you to have had an egg-on-my-face epiphany this morning …
Please allow me to elaborate:
- Yesterday, I witnessed a demonstration of Nortel web.alive (dubbed by some as ‘Second Life for business’)
- This morning I was brainstorming content with a colleague for an upcoming presentation on computing resources available for researchers at York
It was at some point during this morning’s brainstorming session that the egg hit me squarely in the face:
Why not use Nortel web.alive to prepare graduate students for presenting their research?
Often feared more than death and taxes, public speaking is an essential aspect of academic research – regardless of the discipline.
As a former graduate student, I could easily ‘see’ myself in this environment with increasingly realistic audiences comprised of friends, family and/or pets, fellow graduate students, my research supervisor, my supervisory committee, etc. Because Nortel web.alive only requires a Web browser, my audience isn’t geographically constrained. This geographical freedom is important as it allows for participation – e.g., between graduate students at York in Toronto and their supervisor who just happens to be on sabbatical in the UK. (Trust me, this happens!)
As the manager of Network Operations at York, I’m always keen to encourage novel use of our campus network. The public-speaking use case I’ve described here has the potential to make innovative use of our campus network, regional network (GTAnet), provincial network (ORION), and even national network (CANARIE) that would ultimately allow for global connectivity.
While I busy myself scraping the egg off my face, please chime in with your feedback. Does this sound useful? Are you aware of other efforts to use virtual environments to confront the fear of public speaking? Are there related applications that come to mind for you? (As someone who’s taught classes of about 300 students in large lecture halls, a little bit of a priori experimentation in a virtual environment would’ve been greatly appreciated!)
Update (November 13, 2009): I just Google’d the title of this article and came up with a few, relevant hits; further research is required.
I bumped into a professional acquaintance last week. After describing briefly a presentation I was about to give, he offered to broker introductions to others who might have an interest in the work I’ve been doing. To initiate the introductions, I crafted a brief description of what I’ve been up to for the past 5 years in this area. I’ve also decided to share it here as follows:
As always, [name deleted], I enjoyed our conversation at the recent AGU meeting in Toronto. Below, I’ve tried to provide some context for the work I’ve been doing in the area of knowledge representations over the past few years. I’m deeply interested in any introductions you might be able to broker with others at York who might have an interest in applications of the same.
Since 2004, I’ve been interested in expressive representations of data. My investigations started with a representation of geophysical data in the eXtensible Markup Language (XML). Although this was successful, use of the approach underlined the importance of metadata (data about data) as an oversight. To address this oversight, a subsequent effort introduced a relationship-centric representation via the Resource Description Format (RDF). RDF, by the way, forms the underpinnings of the next-generation Web – variously known as the Semantic Web, Web 3.0, etc. In addition to taking care of issues around metadata, use of RDF paved the way for increasingly expressive representations of the same geophysical data. For example, to represent features in and of the geophysical data, an RDF-based scheme for annotation was introduced using XML Pointer Language (XPointer). Somewhere around this point in my research, I placed all of this into a framework.
In addition to applying my Semantic Framework to use cases in Internet Protocol (IP) networking, I’ve continued to tease out increasingly expressive representations of data. Most recently, these representations have been articulated in RDFS – i.e., RDF Schema. And although I have not reached the final objective of an ontological representation in the Web Ontology Language (OWL), I am indeed progressing in this direction. (Whereas schemas capture the vocabulary of an application domain in geophysics or IT, for example, ontologies allow for knowledge-centric conceptualizations of the same.)
From niche areas of geophysics to IP networking, the Semantic Framework is broadly applicable. As a workflow for systematically enhancing the expressivity of data, the Framework is based on open standards emerging largely from the World Wide Web Consortium (W3C). Because there is significant interest in this next-generation Web from numerous parties and angles, implementation platforms allow for increasingly expressive representations of data today. In making data actionable, the ultimate value of the Semantic Framework is in providing a means for integrating data from seemingly incongruous disciplines. For example, such representations are actually responsible for providing new results – derived by querying the representation through a ‘semantified’ version of the Structured Query Language (SQL) known as SPARQL.
I’ve spoken formally and informally about this research to audiences in the sciences, IT, and elsewhere. With York co-authors spanning academic and non-academic staff, I’ve also published four refereed journal papers on aspects of the Framework, and have an invited book chapter currently under review – interestingly, this chapter has been contributed to a book focusing on data management in the Semantic Web. Of course, I’d be pleased to share any of my publications and discuss aspects of this work with those finding it of interest.
With thanks in advance for any connections you’re able to facilitate, Ian.
If anything comes of this, I’m sure I’ll write about it here – eventually!
In the meantime, feedback is welcome.
I’ve added a few more articles over on Bright Hub:
I recently posted on a new article series on Google Chrome for Linux that I’ve been developing over on Bright Hub. My exploration has turned out to be more engaging than I anticipated! At the moment, there are six articles in the series:
- Google Chrome for Linux: Building from Source
- Google Chrome for Linux: Testing and Contributing
- Google Chrome for Linux: The WebKit Web Browser Engine
- Google Chrome for Linux: Android Availability
I anticipate a few more …
It’s also important to share that Google Chrome for Linux does not yet exist as an end-user application. Under the auspices of the Chromium Project, however, there is a significant amount of work underway. And because this work is taking place out in the open (Chromiun is an Open Source Project), now is an excellent time to engage – especially for serious enthusiasts.
What a difference a day makes!
Yesterday I learned that my paper on semantic platforms was rejected.
Today, however, the news was better as a manuscript on annotation modeling was
accepted for publication.
It’s been a long road for this paper:
- Its conception dates back to a presentation I gave at the 2006 Fall Meeting of the AGU.
- The paper was submitted as a contribution for Computers
& Geosciences Special Issue on Geoscience Knowledge Representation in
- The initial reviews called for major revisions. With tremendous support from my co-authors, the paper was significantly revised, and re-submitted.
- After some additional interactions, I just learned that the paper was finally accepted for publication.
The abstract of the paper is as follows:
Annotation Modeling with Formal Ontologies:
Implications for Informal Ontologies
L. I. Lumb, J. R. Freemantle, J. I. Lederman & K. D.
 Computing and Network Services, York University, 4700 Keele Street,
Toronto, Ontario, M3J 1P3, Canada
 Earth & Space Science and Engineering, York University, 4700 Keele
Street, Toronto, Ontario, M3J 1P3, Canada
Knowledge representation is increasingly recognized as an important component of any cyberinfrastructure (CI). In order to expediently address scientiﬁc needs, geoscientists continue to leverage the standards and implementations emerging from the World Wide Web Consortium’s (W3C) Semantic Web effort. In an ongoing investigation, previous efforts have been aimed towards the development of a semantic framework for the Global Geodynamics Project (GGP). In contrast to other efforts, the approach taken has emphasized the development of informal ontologies, i.e., ontologies that are derived from the successive extraction of Resource Description Format (RDF) representations from eXtensible Markup Language (XML), and then Web Ontology Language (OWL) from RDF. To better understand the challenges and opportunities for incorporating annotations into the emerging semantic framework, the present effort focuses on knowledge-representation modeling involving formal ontologies. Although OWL’s internal mechanism for annotation is constrained to ensure computational completeness and decidability, externally originating annotations based on the XML Pointer Language (XPointer) can easily violate these constraints. Thus the effort of modeling with formal ontologies allows for recommendations applicable to the case of incorporating annotations into informal ontologies.
I expect the whole paper will be made available in the not-too-distant future …
I learned yesterday that the manuscript I submitted to HPCS 2008 was not accepted 😦
It may take my co-authors and I some time before this manuscript is revised and re-submitted.
This anticipated re-submission latency, along with the fact that we believe the content needs to be shared in a timely fashion, provides the motivation for sharing the manuscript online.
To whet your appetite, the abstract is as follows:
Evolving a Semantic Framework into a Network-Enabled Semantic Platform
A data-oriented semantic framework has been developed previously for a project involving a network of globally distributed scientiﬁc instruments. Through the use of this framework, the semantic expressivity and richness of the project’s ASCII data is systematically enhanced as it is successively represented in XML (eXtensible Markup Language), RDF (Resource Description Formal) and ﬁnally as an informal ontology in OWL (Web Ontology Language). In addition to this representational transformation, there is a corresponding transformation from data into information into knowledge. Because this framework is broadly applicable to ASCII and binary data of any origin, it is appropriate to develop a network-enabled semantic platform that identiﬁes the enabling semantic components and interfaces that already exist, as well as the key gaps that need to be addressed to completely implement the platform. After brieﬂy reviewing the semantic framework, a J2EE (Java 2 Enterprise Edition) based implementation for a network-enabled semantic platform is provided. And although the platform is in principle usable, ongoing adoption suggests that strategies aimed at processing XML via parallel I/O techniques are likely an increasingly pressing requirement.
… unique business model allows [them] to bring [us] more focused information, giving [us] more of what [we] need to know, and less of what [we] don’t.
- Chapter 1 places the BlackBerry Enterprise Server (BES) in the broader context of Research In Motion’s (RIM) BlackBerry universe. In addition to itemizing relevant components, an introduction to the BlackBerry’s push model, security and Internet connectivity is provided.
- Though brief, Chapter 2 runs deep in addressing BES architecture and implementation planning. For example, we learn that the BES employs a modular architecture comprising over a dozen components. After succinctly enumerating the components and their function, BES requirements and prerequisites are identified. In addition to hardware and software requirements, recommendations are made with respect to networking your BES (e.g., firewall and/or proxy considerations) and providing it with a database. Easy to gloss over on first read are thoughtful recommendations on sizing the BES (including pointers to resources from RIM) and the database for the anticipated user load.
- Before BES components can be installed and enabled, the messaging environment and database server need to be configured. This is the subject of Chapter 3. Both local and remote database instances receive attention. Because each step is well illustrated, the book delivers on its intended purpose of serving as a solution guide.
- The installation of the BES is a multistep process enabled via a wizard. As in the previous chapter, in Chapter 4 the authors guide the reader through this process making appropriate use of illustrations. They interject appropriate commentary, and are clear on out-of-scope topics. The early emphasis on delineating BES architecture (Chapter 1) is realized as the authors transition the reader through the BES installation.
- Of course, installing the BES is just the beginning, and therefore the next few chapters focus on the additional tasks required to operationally deliver this service to its users. After introducing the six permissible levels of administrative role on the BES, attention shifts in Chapter 5 to the matter of provisioning users, groups and devices. And with respect to devices, wireline and wireless options for provisioning are given consideration.
- The BES ships with over 200 policies that can be applied variously to users, groups and devices. Also covered in Chapter 6 is the topic of provisioning software from RIM and third parties. Of particular value is the authors’ example of a software bundle targeted to a particular BlackBerry model. The ability to administer users, groups and devices with respect to policies (including software), from a single point of control (i.e., the BES server), speaks volumes to the appeal and value that this offering can deliver to corporate enterprise environments. This Chapter’s treatment of policies and software provisioning serves as an excellent introduction to topics BES administrators will return to repeatedly, and likely with increasing degrees of sophistication.
- Unlike many of the other chapters, Chapter 7 provides only an overview of multitiered administration – i.e., properties and tasks relating to users, groups, (BlackBerry) domains and servers. This enumeration of possibilities, presented in context, works effectively.
- A deeper discussion on security is the focus of the first part of the final chapter (Chapter 8). Encryption and authorization, both of which receive detailed consideration, amplify the value of the BES and its context in the overall BlackBerry universe for corporate enterprises. An unanticipated treatment of disaster recovery closes Chapter 8. In sufficient detail to enable a solution, the authors discuss in turn the measures needed to ensure that both the server (the BES) and its data (housed by the BES’s local or remote database) are readied for a disaster situation.