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HYPER Tables of Contents: 97X989900010203040506070809101112131415

Proceedings of the Eighteenth ACM Conference on Hypertext and Hypermedia

Fullname:Hypertext'07: Proceedings of the Eighteenth ACM Conference on Hypertext and Hypermedia
Editors:Simon Harper; Helen Ashman; Mark Bernstein; Alexandra Cristea; Hugh C. Davis; Paul De Bra; Vicki Hanson; Dave Millard
Location:Manchester, UK
Dates:2007-Sep-10 to 2007-Sep-12
Publisher:ACM
Standard No:ISBN 1-59593-820-6; 978-1-59593-820-6; ACM Order Number: 614071; ACM DL: Table of Contents hcibib: HYPER07
Papers:51
Pages:230
Links:Conference Home Page (defunct)
  1. Keynote address
  2. Practical hypertext (1)
  3. Posters, demonstrations, and the reading room (1)
  4. Practical hypertext (2)
  5. Hypertext & the person
  6. Hypertext culture & communication
  7. Posters, demonstrations, and the reading room (2)
  8. Hypertext & society (1)
  9. After dinner keynote address
  10. Hypertext models & theory
  11. Hypertext & society (2)
  12. Closing plenary

Keynote address

The return of the prodigal web: 1 BIBAFull-Text 2
  Carole A. Goble
We argue that the Semantic Web and Web 2.0 herald a return to hypertext's original visions and provide a means and an opportunity to bring full hypermedia capability to the Web.

Practical hypertext (1)

Experiments toward reverse linking on the web BIBAFull-Text 3-10
  Yeliz Yesilada; Darren Lunn; Simon Harper
Multi-headed reverse linking (incoming links) is a fundamental concept of Open Hypermedia Systems. However, this bi-directionality has been lost in the move to the World Wide Web (Web). Here, we suggest a Web based solution for rediscovering these reverse links, and develop a series of experiments to demonstrate our approach. Simply our algorithm involves parsing a Web server's log file, identifying each Web page viewed and saving an ordered list of referrers within a 'name-matched' XML file. This file is then used as a link point within a standard XHTML Web-page using a freely available Javascript library. While we have not performed any comprehensive user evaluation initial qualitative results suggest users are positive regarding our additions and that widespread adoption would increase user satisfaction due to constancy of the browsing experience.
User-assisted similarity estimation for searching related web pages BIBAFull-Text 11-20
  Lin Li; Zhenglu Yang; Kulwadee Somboonviwat; Masaru Kitsuregawa
To utilize the similarity information hidden in the Web graph, we investigate the problem of adaptively retrieving related Web pages with user assistance. Given a definition of similarities between pages, it is intuitive to estimate that any similarity will propagate from page to page, inducing an implicit topical relatedness between pages. In this paper, we extract connected subgraphs from the whole graph that consists of all pairs of pages whose similarity scores are above a given threshold, and then sort the candidates of related pages by a novel rank measure which is based on the combination distances of a flexible hierarchical clustering. Moreover, due to the subjectivity of similarity values, we dynamically supply the ordering list of related pages according to a parameter adjusted by users. We show our approach effectively handles a set of pages originating from three related categories of Web hierarchies, such as Google Directory. The experiments with three similarity measures demonstrate that using in-link information is favorable while using a combination measure of in-links and out-links lowers the precision of identifying similar pages.
Lesson learnt from a large-scale industrial semantic web application BIBAFull-Text 21-30
  Sylvia C. Wong; Richard M. Crowder; Gary B. Wills; Nigel R. Shadbolt
The design and maintenance of an aero-engine generates a significant amount of documentation. When designing new engines, engineers must obtain knowledge gained from maintenance of existing engines to identify possible areas of concern. We developed a Semantic Web based document repository for transferring front-line maintenance knowledge to design. The Semantic Web is an ideal candidate for this application because of the size and distributed nature of an aerospace manufacturer's operation. The Semantic Web allows us to dynamically cross reference documents with the use of an ontology. However, during the design and implementation of this project, we found deficiencies in the W3C recommended Semantic Web query language SPARQL. It is difficult to answer questions our users sought from the document repository using SPARQL. The problem is that SPARQL is designed for handling textual queries. In industrial applications, many common textual and semantic questions also contain a numerical element, be it data summarization or arithmetic operations. In this paper, we generalize the problems we found with SPARQL, and extend it to cover web applications in non-aerospace domains. Based on this analysis, we recommend that SQL-styled grouping, aggregation and variable operations be added to SPARQL, as they are necessary for industrial applications of the Semantic Web. At the moment, to answer the non-textual questions we identified with an RDF store, custom written software is needed to process the results returned by SPARQL. We incorporated the suggested numerical functionalities from SQL for an example query, and achieved a 21.7% improvement to the speed of execution. More importantly, we eliminate the need of extra processing in software, and thus make it easier and quicker to develop Semantic Web applications.

Posters, demonstrations, and the reading room (1)

Semport: a personalized semantic portal BIBAFull-Text 31-32
  Melike Þah; Wendy Hall; Nicholas M. Gibbins; David C. De Roure
This paper presents an ontology-based semantic portal, SEMPort, which aims to support both content providers and the users of the portal during providing information, browsing and searching. The content is enriched with context-based semantic hyperlinks and personalized views. Distributed content editing/provision is supplied for the maintenance of the contents in real-time. As a case study, SEMPort is tested on the school's Course Modules Web Page (CMWP) and evaluated using this domain.
Experiments towards web 2.0 accessibility BIBAFull-Text 33-34
  Elizabeth C. Stringer; Yeliz Yesilada; Simon Harper
Client side dynamic updating within World Wide Web (Web) pages is becoming a prevalent feature across popular websites and services. The problem is that screen readers cannot identify when these updates occur. Our solution proposes that, by analysis of network communication, the underlying information can be extracted and presented to assistive technologies.
Qtag: introducing the qualitative tagging system BIBAFull-Text 35-36
  Sung Eob Lee; Steve SanKi Han
Collaborative tagging provides exceptional performance in the domains of IF (Information Filtering) and IR (Information Retrieval). Based on various studies regarding the tagging behavior of users, it can be concluded that there is potential for expansion of this domain to the area of ratings. The paper presents Qtag, a qualitative tagging system that allows users to tag in order to rate and express opinions in more sharable vocabulary. A conceptual model and evaluation are presented.
Search habits of the computer literate BIBAFull-Text 37-38
  James Wells; Mark Truran; James Goulding
The World Wide Web is only feasible as a practical proposition because of the existence of hypermedia search engines. These search engines face a monumental challenge. They are routinely confronted with searching behaviour best characterised as unsophisticated and impatient. One popular explanation for poor querying technique is lack of computer literacy. Individuals who work closely with Information Technology are frequently exposed to retrieval engines, giving them the opportunity to develop successful searching strategies. In the following paper, we examine this assumption - is there really a correlation between computer literacy and searching skill.
Tags, networks, narrative: exploring the use of social software for the study of narrative in digital contexts BIBAFull-Text 39-40
  Bruce Lionel Mason; Sue Thomas
This poster reports on a project in progress that is assessing the potential of social software for trans-disciplinary research into narratives in a digital context. One aspect of the project is study of whether folksonomy can be of use in transdisciplinary communication. The study features 30 participants who are tagging 40 websites using Del.icio.us (http://del.icio.us) and then taking part in a series of tasks that involve re-examining their tags. In the poster we will present the background to the project, the methodology of the folksonomy study and the findings that may emerge from it. Through so doing, we aim to contribute to the emerging debate about the utility and role of folksonomy in the arts and the academy [3,7,9,10].
Using forum in an organizational learning context BIBAFull-Text 41-42
  Adeline Leblanc; Marie-Hélène Abel
Information and Communication Technologies have a growing impact on long life learning. Organizational Learning is an increasingly important area of research that concerns the way organizations learn and thus augment their competitive advantage, innovativeness, and effectiveness. Within the project MEMORAe2.0, we are interested by the capitalization of knowledge in the context of an organization, but also by the externalization and capitalization of tacit knowledge that's why we use a forum in an organizational learning context. We developed the E-MEMORAe2.0 environment which is based on the concept of learning organizational memory.
A study into user perceptions of information sharing and trust in virtual teams BIBAFull-Text 43-44
  Stephen Mogan; Weigang Wang
The effects of trust on the virtual team cannot be overstated. Trust is defined as the extent to which a person is confident in, and willing to act on the basis of, the words, actions and decisions of another [4]. It has been cited as the crucial aspect in virtual team development and effectiveness and has also been directly linked to virtual team efficiency, collaboration and performance [2] [3] [6]. This poster describes a questionnaire study into the types of information that most effectively build trust in the virtual team.
Interaction visualization in web-based learning using igraphs Álvaro Reis Figueira, Joanne Bras Laranjeiro BIBAFull-Text 45-46
 
Discussion forums are presently one of the most important tools in assisting distance education. Web learning is accomplished by using these communication tools and, particularly, by the interactions that take place in these settings. Therefore, students' participations in a discussion forum, the frequency and the way they participate, the types of interactions that they create with their colleagues and with the professor, can and should be analyzed in order to fully understand the group and, consequently, allow a more efficient and student focused education. In this article, suggest graphical representations (the iGraph) of these interactions and by using these tools, we describe forum participation according to the centralization of information, the density and intensity of interactions, and yet the quality of the moderation.
Predicting and solving web navigation problems BIBAFull-Text 47-48
  Mari Carmen Puerta Melguizo; Herre van Oostendorp; Ion Juvina
In the first experiment we explored the ability of different objective and subjective measures to predict user's success in finding information in a website. The results indicate that the subjective measure of lostness seems to be a better predictor of task performance than any of the objective measures. In the second experiment the probability of getting lost was reduced by presenting navigation support generated by the cognitive model CoLiDeS+, a model of web navigation that describes step-by-step which information presented on the screen is attended to and selected. CoLiDeS+ could be used as a software agent that automatically offers navigation suggestions in real time.
Visual features in genre classification of html BIBAFull-Text 51-52
  Ryan Levering; Michal Cutler; Lei Yu
Automatic genre classification historically has focused on extracting textual features from documents. In this research, we investigate whether visual features of HTML documents can improve the classification of fine grained genres. Three different sets of features were compared on a genre classification task in the e-commerce domain - one with just textual features, one with HTML features added, and a third with additional visual features. Our experiments show that adding HTML and visual features provides much better classification than textual features alone.
Wiki literacy: sandbox knowledge for the net BIBAFull-Text 53-54
  Anja Ebersbach; Markus Glaser
Wikis are not only a part of the internet but can be seen as a miniature and as an extended WWW. Therefore using a wiki helps training media literacy for the web on various levels and even goes beyond it. As a theoretical basis for this article we use the definition of media literacy by Baacke [1]. It is augmented by the aspect of media democracy.
Progressive enhancement in the real world BIBAFull-Text 55-56
  John Wells; Chrisina Draganova
Progressive Enhancement is a modern approach for developing web documents that are accessible across any browser or device that has access to the Internet. Based on the idea of separating a document's content, presentation, and behaviour, progressive enhancement embraces accessibility, semantics, forward-compatibility and usability. This poster illustrates a real world implementation of the progressive enhancement technique by following the steps in building a restaurant food menu that elegantly scrolls within a fixed page design.

Practical hypertext (2)

Real users, real results: examining the limitations of learning styles within AEH BIBAFull-Text 57-66
  Elizabeth Brown; Tony Fisher; Tim Brailsford
This paper examines the current state of AEH (adaptive educational hypermedia) research into explicit learning style modelling for user personalisation. It addresses the problem of non-naive test subjects, who are often in user trials, thus contributing to experimental bias. Instead, the authors suggest using real people, i.e. users with a range of backgrounds and abilities, in order to gain a truer insight into evidence-based research.
   We report on a study carried out with No statistically significant differences were found between experimental groups, learning style preferences or learning environments. We discuss the significance of this, and then critically analyse the use of learning styles in relation to this study and also in the wider context.real users: around 80 children at a UK primary school. The study investigated sequential and global learning styles as a personalisation mechanism in an AEH system. The user trial involved matching and mismatching users and learning environments to see if learning improved. The AEH system used by the children was DEUS, a new e-learning platform that is conceptually similar to WHURLE, an AEH that also used learning styles as its user model.
   No statistically significant differences were found between experimental groups, learning style preferences or learning environments. We discuss the significance of this, and then critically analyse the use of learning styles in relation to this study and also in the wider context.
HSTP: hyperspeech transfer protocol BIBAFull-Text 67-76
  Sheetal K. Agarwal; Dipanjan Chakraborty; Arun Kumar; Amit Anil Nanavati; Nitendra Rajput
HTTP provides a mechanism to connect web sites. Almost all sites have a large amount of hypertext content that provides connection to other sites in the World Wide Web. The success of the WWW can be partly attributed to the seamlessly browsable web that is formed through this connectivity. However, navigation of hypermedia content through non-visual interfaces has not received as much attention. Specifically, telephony voice applications offer immense usability and penetration benefits and can act as alternate information access and delivery mechanisms. Connectivity across voice applications poses interesting and novel challenges. In this paper, we define Hyperspeech as a voice fragment in a voice application that is a hyperlink to a voice fragment in another voice application. Further, we present Hyperspeech Transfer Protocol (HSTP) - a protocol to seamlessly connect telephony voice applications. HSTP enables the users to browse across voice applications by navigating the Hyperspeech content in a voice application. HSTP can also be used for developing cross-enterprise applications that allow a user to transact across two or more voice applications.
LLAMA: automatic hypertext generation utilizing language models BIBAFull-Text 77-80
  Dong Zhou; James Goulding; Mark Truran; Tim Brailsford
Manual hypertext construction is labour intensive and prone to error. Robust systems capable of automatic hypertext generation (AHG) could be of direct benefit to those individuals responsible for hypertext authoring. In this paper we propose a novel technique for the autonomous creation of hypertext which is dependent upon language models. This work is strongly influenced by those algorithms which process the hyperlinked structure of a corpus in an attempt to find authoritative sources. The algorithm was evaluated by experimental comparison with human hypertext authors, and we found that both approaches produced broadly similar results.
Clustering as an approach to support the automatic definition of semantic hyperlinks BIBAFull-Text 81-84
  José A. Camacho-Guerrero; Alex A. Carvalho; Maria G. C. Pimentel; Ethan V. Munson; Alessandra A. Macedo
We propose the use of clustering to support the automatic definition of semantic hyperlinks. We present a linking service that relates documents pertaining to a specific cluster created by a clustering process. The results of preliminary experiments are positive and illustrate our contribution in terms of creating hyperlinks considering the homogeneous contents represented by clusters.

Hypertext & the person

Revealing the hidden rationality of user browsing behaviour BIBAFull-Text 85-94
  Elizabeth Brown; Tim Brailsford; Tony Fisher; Cees van der Eijk
In this paper, we analyse web log data from user trials of the WHURLE-LS adaptive educational hypermedia (AEH) system from a behavioural perspective. This system allows users to switch from one presentational mode to another (visual, verbal or neutral), and this paper investigates users' choice of mode as they interacted with the system. We present the main findings of the browsing behaviours within the framework of rational choice theory, and discuss why and when switching might have occurred.
User-tailored web accessibility evaluations BIBAFull-Text 95-104
  Markel Vigo; Alfred Kobsa; Myriam Arrue; Julio Abascal
This paper presents a framework and system to evaluate the accessibility of web pages according to the individual requirements of users with disabilities. These requirements not only consist of users' abilities, but also users' assistive technologies and the delivery context. In order to ascertain interoperability with other software components, user requirements are specified taking advantage of the extensibility of the W3C CC/PP recommendation and other feature-specification vocabularies. An evaluation tool capable of understanding these specifications generates evaluation reports that are tailored to the user's individual needs. Quantitative accessibility measures resulting from personalized evaluation reports can be used to improve the web browsing experience for users with disabilities, such as through adaptive navigation support and by sorting the results of search engines according to users' personal requirements. In addition, developers benefit from personalized evaluations when developing websites for specific audiences.
Simplifying web traversals by recognizing behavior patterns BIBAFull-Text 105-114
  Christian Doerr; Daniel von Dincklage; Amer Diwan
Web sites must often service a wide variety of clients. Thus, it is inevitable that a web site will allow some visitors to find their information quickly while other visitors have to follow many links to get to the information that they need. Worse, as web sites evolve, they may get worse over time so that all visitors have to follow many links to find the information that they need.
   This paper describes an extensible system that analyzes web logs to find and exploit opportunities for improving the navigation of a web site. The system is extensible in that the inefficiencies that it finds and eliminates are not predetermined; to search for a new kind of inefficiency, web site administrators can provide a pattern (in a language designed specifically for this) that finds and eliminates the new inefficiency.

Hypertext culture & communication

Assembly lines: web generators as hypertexts BIBAFull-Text 115-122
  Elizabeth M. Losh
This paper treats web generators as a form of online hypertext and provides a taxonomy of some of the most popular generator types. It also characterizes the ideology of participatory culture associated with the generator phenomenon -- along with its subversion through parody -- and how specific processes that produce user-generated digital ephemera often mimic the constraints of familiar software applications and online forms. It includes a consideration of some of the knowledge-sharing practices of PHP coders and of members of the general public who exchange information about and from these digital phenomena.
What is an analogue for the semantic web and why is having one important? BIBAFull-Text 123-132
  m. c. schraefel
This paper postulates that for the Semantic Web to grow and gain input from fields that will surely benefit it, it needs to develop an analogue that will help people not only understand what it is, but what the potential opportunities are that are enabled by these new protocols. The model proposed in the paper takes the way that Web interaction has been framed as a baseline to inform a similar analogue for the Semantic Web. While the Web has been represented as a Page + Links, the paper presents the argument that the Semantic Web can be conceptualized as a Notebook + Memex. The argument considers how this model also presents new challenges for fundamental human interaction with computing, and that hypertext models have much to contribute to this new understanding for distributed information systems.
The evolution of authorship in a remix society BIBAFull-Text 133-136
  Nicholas Diakopoulos; Kurt Luther; Yevgeniy (Eugene) Medynskiy; Irfan Essa
Authorship entails the constrained selection or generation of media and the organization and layout of that media in a larger structure. But authorship is more than just selection and organization; it is a complex construct incorporating concepts of originality, authority, intertextuality, and attribution. In this paper we explore these concepts and ask how they are changing in light of modes of collaborative authorship in remix culture. We present a qualitative case study of an online video remixing site, illustrating how the constraints of that environment are impacting authorial constructs. We discuss users' self-conceptions as authors, and how values related to authorship are reflected to users through the interface and design of the site's tools. We also present some implications for the design of online communities for collaborative media creation and remixing.

Posters, demonstrations, and the reading room (2)

Breathalyzing physio-cybertext BIBAFull-Text 137-138
  Astrid Ensslin
This poster investigates the creative interplay between readerly intentionality and corporeality in 'physio-cybertext', exemplified by Kate Pullinger et al.'s The Breathing Wall. This gothic murder mystery uses the reader's respiratory system as driving force for disclosing essential referential meaning, or 'clues'. TBW deviates from - and thereby reconfirms metagenerically - the rules of the conventional thriller by leaving the solution of the mystery not only to the reader's intention-driven, cognitive engagement with the plot, but chiefly to his or her very physical condition. Drawing on Aarseth's (1997) 'text/machine' and notions of intentionality and physical situatedness, I introduce the concept of 'cybertextual retro-intentionalization'.
Strong vs. weak links: making processes prevail over structure in navigational design BIBAFull-Text 139-140
  José H/ Canós; Carlos Solís; Ma Carmen Penadés; Manuel Llavador
We introduce a process-based approach to navigational design of hypermedia applications. Unlike most current methods, which use the information structure as the basis for building the navigational structure, we start from a workflow-like process model to create a two-level navigational model. On one hand, the strong navigational schema is composed of nodes called activity views and links derived from control flow relationships of the process model. On the other hand, a weak navigational schema is developed for each activity view based on the information a given actor has to use to perform the associated activity. Our approach allows designers to solve in a natural way the problems where the business processes prevail over the information structure.
Image seeds: a communal picture-based narrative BIBAFull-Text 141-142
  Darren Lunn
Bitmapping is an art exhibition that seeks to create a linear story path through a collection of photographs. Bitmapping sends registered participants an image to their mobile phone. The participants must then take a related picture within two hours and send that image to the organisers. This is then forwarded to the next participant to create a chain. While Bitmapping fosters an interesting roadmap of images, it is limited by physical location and the linear stories that it seeks to create. Image Seeds is a global communal hypermedia art experiment that extends Bitmapping. Rather than receiving a single image, participants are invited to navigate a web of images, all of which can act as seeds of inspiration. If participants stumble across an image that inspires, they are invited to add their own image to the hypermedia and create a link from the image that instigated the inspiration. Images can have multiple links to create an evolving story that unfolds into a unique and diverse narrative as participants follow paths through the pictures.
Adaptive incremental browsing of ontology structure BIBAFull-Text 143-144
  Mária Bieliková; Michal Jemala
We present a method for effective navigation in structure of large information spaces. The method employs incremental browsing of the information space structure and visualizes in every moment only specific part of the space (a window) where its content is selected adaptively according to evaluations of the presented entities. Entity evaluations are gained from interactions with entities (manual browsing of people or automatic browsing by applications). We describe proposed method in the context of ontology structure navigation.
Incorporating culture in user-interface: a case study of older adults in malaysia BIBAFull-Text 145-146
  Syariffanor Hisham; Alistair D. N. Edwards
As people age they will hold the same pattern of thinking, acting, communication style and behaviours which they learn from living in a specific social environment. Regardless of demographics and geographic differences, older adults share similar age-related changes in perception, cognition and mobility that profoundly affect their daily activities including computer tasks. The problem is more apparent for Malaysian older adults who are not only struggling with their age-related difficulties but at the same time need to use a user-interface which has been designed out of their culture. As localization is not well-practised in Malaysia, the English user-interface is one of the biggest barriers for older adults who could not read the language. Thus, this paper reports the current trend of computer usage among Malaysian older adults and the roles of culture in user-interface design for this fast-growing user group in Malaysia.
Transforming DITA topics for speech synthesis output BIBAFull-Text 147-148
  Aidan Kehoe; Ian Pitt
Speech technology can be used to enhance user assistance systems by making help information more accessible. In this paper we describe our implementation of a transform that converts DITA topics to SSML/SAPI documents, thus allowing the assistance topics to be presented to users via speech synthesis.
Toward interactive learning by concept ordering BIBAFull-Text 149-150
  Shantanu Godbole; Sachindra Joshi; Sameep Mehta; Ganesh Ramakrishnan
In this paper we present a visual education tool for efficient and effective learning. The toolkit is based on a simple premise: simple concepts should be learned before advanced ones. We propose algorithms to automatically capture such pre-requisite dependence relationships between concepts. We extract concept definitions from the web's hyperlinked environment and create a concept graph arranged in a hierarchical structure and presented to the user in an interactive fashion. Thereafter, the user guides the learning process in a hyperlinked environment, by selecting a target concept, exploring the associated learning graph, learning pre-requisite concepts, and repeating this process till her learning goal is reached. To measure usefulness and correctness of our approach, we conducted a user study with 25 users using precision and recall measures. Overall, the feedback from users was encouraging. We believe this is a positive step toward building user driven interactive learning systems.
Ontology based course navigation BIBAFull-Text 151-152
  Zdenek Velart; Petr Saloun
Nowadays course navigation is mostly based on sequence order of pages prepared by the author of the course. Ontology based course navigation, where to every element of ontology some learning material is associated allows to effective navigation to desired information.
   Article is describing usage of keywords, which are searched in the learning material and keywords - ontology mapping for creating the course navigation. For every page two sets are created - prerequisite and outcome sets, where elements are elements of ontology. Implemented tool for creating this mapping and processing the material is described here.
A semantic tool to support navigation in a folksonomy BIBAFull-Text 153-154
  David Laniado; Davide Eynard; Marco Colombetti
We propose a new approach to integrate the navigation interface of a folksonomy adding explicit semantics provided by an ontology. We describe a tool that uses WordNet to build a semantic hierarchy of related tags that helps users find related resources in del.icio.us. In this way it is possible to combine the advantages of the traditional approach to classification with the ones of the collaborative paradigm that is emerging on the Web, dealing with some of the main limitations to which folksonomies are prone.
Collaborative annotation-driven adaptation in web portals BIBAFull-Text 155-156
  Andreas Nauerz; Stefan Pietschmann; Rene Pietzsch
Today's Web Portals suffer from information overload. We try to overcome this drawback by making them more adaptable and adaptive to the user's contexts. Therefore, we focus on the utilization of Web 2.0 techniques, especially semantic annotations, to make use of the portal users' collective intelligence.
A study of publisher, writer, and reader: different perspectives on digital fiction BIBAFull-Text 157-158
  Hazel Wright; Daniela Petrelli
This paper describes a study set up to investigate and map the landscape of digital writing today. Writers, readers and publishers have been interviewed and questioned for their opinions on different issues. Results show the area is still unsettled though much excitement surrounds experimentations and freedom of publishing online. Publishers are not yet involved in digital writing and this is seen simultaneously as a blessing and a curse. All interviewees agree that digital fiction will come, likely prompted by new reading technology.
Hypertext applications BIBAFull-Text 159-160
  Frank Wagner
The discussion about the future of hypertext made me wonder whether I could find another reason to consider a text to be 'hyper'. The answer I found may not be that interesting itself, but the discussions about it gave me some ideas which I want to present in the context of my project.
   The object of this project is to come to a better understanding of applications of information technology. In the context of my work applications often not only seem less than optimal but even contra productive.
   A different view may help to find better applications.
Dynamic link service 2.0: using wikipedia as a linkbase BIBAFull-Text 161-162
  Patrick A. S. Sinclair; Kirk Martinez; Paul H. Lewis
This paper describes how a Web 2.0 mashup approach, reusing technologies and services freely available on the web, have enabled the development of a dynamic link service system that uses Wikipedia as its linkbase.

Hypertext & society (1)

Towards better understanding of folksonomic patterns BIBAFull-Text 163-166
  Hend S. Al-Khalifa; Hugh C. Davis
Folksonomies provide a free source of keywords describing web resources; however, these keywords are free form and their semantics spans multiple contextual dimension. In this paper, we present a pragmatic experiment that analyzes folksonomies using three classification categories: Personal, Factual and Subjective, in order to gain more understanding of the types of tags used in the social tagging process. The rational for this work was to measure the potential portion of folksonomy tags that might be helpful when considering the creation of structured metadata.
Collaborative classification of growing collections with evolving facets BIBAFull-Text 167-170
  Harris Wu; Mohammad Zubair; Kurt Maly
There is a lack of tools for exploring large non-textual collections. One challenge is the manual effort required to add metadata to these collections. In this paper, we propose an architecture that enables users to collaboratively build a faceted classification for a large, growing collection. Besides a novel wiki-like classification interface, the proposed architecture includes automated document classification and facet schema enrichment techniques. We have implemented a prototype for the American Political History multimedia collection from usa.gov.
Does it matter who contributes: a study on featured articles in the german wikipedia BIBAFull-Text 171-174
  Klaus Stein; Claudia Hess
The considerable high quality of Wikipedia articles is often accredited to the large number of users who contribute to Wikipedia's encyclopedia articles, who watch articles and correct errors immediately. In this paper, we are in particular interested in a certain type of Wikipedia articles, namely, the featured articles - articles marked by a community's vote as being of outstanding quality. The German Wikipedia has the nice property that it has two types of featured articles: excellent and worth reading. We explore on the German Wikipedia whether only the mere number of contributors makes the difference or whether the high quality of featured articles results from having experienced authors contributing with a reputation for high quality contributions. Our results indicate that it does matter who contributes.
Identifying subcommunities using cohesive subgroups in social hypertext BIBAFull-Text 175-178
  Alvin Chin; Mark Chignell
Web pages can be modeled as nodes in a social network, and hyperlinks between pages form links (relationships) between the nodes. Links may take the form of comments, for example on blogs, creating explicit connections between authors and readers. In this paper, we describe a novel methodology and framework for identifying subcommunities as cohesive subgroups of n-cliques and k-plexes within social hypertext. We apply our methodology to a group of computer technologists in Toronto called TorCamp who communicate using a Google group. K-plex analysis is then used to identify a group of people that forms a subcommunity within the larger community. The results are then validated against the experienced sense of community of people inside and outside the subcommunity. Statistically significant differences in experienced sense of community are found, with people within the subcommunity showing higher levels of perceived influence and emotional connection.

After dinner keynote address

Back to the future with hypertext: a tale of two or three conferences BIBAFull-Text 179-180
  Wendy Hall
I hope the hypertext community will embrace these ideas and not remain isolationist as it has in the past -- so ironic for a community devoted to building systems to make links!

Hypertext models & theory

An agile hypertext design methodology BIBAFull-Text 181-184
  Gary B. Wills; Noura Abbas; Rakhi Chandrasekharan; Richard M. Crowder; Lester Gilbert; Yvonne M. Howard; David E. Millard; Sylvia C. Wong; Robert J. Walters
Customers are driving down lead times for software, especially for Web applications, to only a few months. While a number of hypertext design models exist, they do not address the issue of the requirements and analysis process that normally feeds the design process. In this paper we present an agile approach to developing hypertext applications, which focuses on the requirements and analysis stages, something that is largely ignored in current methodologies.
Architecting structure-aware applications BIBAFull-Text 185-188
  Jessica Rubart
An extension to the well-known MVC architectural pattern is proposed to include an explicit structure model. The proposed conceptual model is further extended to address requirements from the research fields CSCW and ubiquitous computing. Furthermore, data, structure, and behavior descriptions have been identified as basic abstractions. In summary, the proposed model addresses reuse as well as design for change on different levels of abstraction.
A semantics-based aspect-oriented approach to adaptation in web engineering BIBAFull-Text 189-198
  Sven Casteleyn; William Van Woensel; Geert-Jan Houben
In the modern Web, users are accessing their favourite Web applications from any place, at any time and with any device. In this setting, they expect the application to user-tailor and personalize content access upon their particular needs. Exhibiting some kind of user- and context-dependency is thus crucial in Web Engineering. In this research, we focus on separating the adaptation engineering process from regular Web engineering by applying aspect-oriented techniques. We show how semantic information and metadata associated with the content can be exploited in our aspect-oriented approach. Furthermore, the approach allows the use of global (structural) properties of the Web application in adaptation specification. We thus obtain several advantages, which are demonstrated in this paper: to control adaptation specification) separate from (regular) Web Engineering concerns in a richer, more consistent, robust and flexible way.

Hypertext & society (2)

ASSIST: adaptive social support for information space traversal BIBAFull-Text 199-208
  Rosta Farzan; Maurice Coyle; Jill Freyne; Peter Brusilovsky; Barry Smyth
Finding relevant information in a hyperspace has been a much studied problem for many years. With the emergence of so called Web 2.0 technologies we have seen the use of social systems for retrieval tasks increasing dramatically. Each system collects and exploits its own pool of community wisdom for the benefit of its users. In this paper we suggest a form of retrieval which exploits the pools of wisdom of multiple social technologies, specifically social search and social navigation. The paper details the added user benefits of merging several sources of social wisdom. We present details of the ASSIST engine developed to integrate social support mechanisms for the users of information repositories. The goal of this paper is to present the main features of the integrated community-based personalization engine that we have developed in order to improve retrieval in the hyperspace of information resources. It also reports the results of an empirical study of this technology.
Annotation consensus: implications for passage recommendation in scientific literature BIBAFull-Text 209-216
  Shannon Bradshaw; Marc Light
We present a study of the degree to which annotations overlap when several researchers read the same set of scientific articles. Our objective is to determine whether there is sufficient evidence to suggest that information about which passages initial readers tend to annotate might be used to recommend important passages to later readers of the same material. We found that readers exhibit a high degree of overlap in the passages they annotate, that these passages account for a small but significant fraction of the total document, and that such passages are distributed throughout a document rather than concentrated in the same few sections in each paper (e.g., the results section). These findings indicate that work on developing a passage recommendation model based on annotation is warranted.
Analysis of online video search and sharing BIBAFull-Text 217-226
  Martin J. Halvey; Mark T. Keane
It is now feasible to view video at home as easily as text-based pages were viewed when the Web first appeared. This development has led to the emergence of video search engines providing hosting, indexing and access to large, online video repositories. A key question in this new context is whether users search for media in the same way that they search for text. This paper presents a first step towards answering this question by providing novel analyses of people's linking and search behavior using a leading video search engine. Initial results show that page views in the video context deviate from the typical power-law relationships seen on the Web. However, more positively, there are clear indications that tagging and textual descriptions play a key role in making some video-pages more popular than others. This shows that many techniques based on text analysis could apply in the video context.

Closing plenary

Back to the future: hypertext the way it used to be BIBAFull-Text 227-228
  Theodor Holm Nelson; Robert Adamson Smith; Marlene Mallicoat
Others imitate paper (Word, Acrobat) and the constant 3D world we live in ("Virtual Reality"). Our system instead tries to create documents better than paper in a space better than reality.