HT2015, Call for Papers for Main Research Tracks
26th ACM Conference on Hypertext and Social Media

2-4 September 2015

— Conference Scope —

The ACM Conference on Hypertext and Social Media conference (HT) is a premium venue for high quality peer-reviewed research on theory, systems and applications for hypertext and social media. It is concerned with all aspects of modern hypertext research, including social media, adaptation and personalisation, user modeling, linked data and semantic web, dynamic and computed hypertext, and its application in digital humanities.

HT2015 will focus on the role of hypertext and hyperlink theory on the web and beyond, as a foundation for approaches and practices in the wider community. Therefore, HT2015 has the following tracks:

* Digital Connectivity
* Data Connectivity
* Digital Humanities


In modern Web environments hypermedia content is increasingly generated, processed, filtered, adjusted, and personalised. Online social networks further generalise the conventional notion of the hypermedia to imply connections between users via their content and media. Making sense of     these complex processes has attracted significant attention in various research disciplines.

The Digital Connectivity track targets developing deeper insights into the mechanisms of information generation and dissemination, characterization of evolutionary processes on online social networks, studies of models and systems that support these processes, and the broader implications of these for organisations and society. The track provides a forum for researchers and practitioners to exchange information regarding     advancements in the current state of art.

Addressing problems in the Digital Connectivity space necessitates expertise in several domains: Computer and Information Science, Social Sciences, Psychology, and Economics. Hence submissions of inter-disciplinary works are highly encouraged. We also welcome works that explore how Digital Connectivity can be applied in diverse domains, such as Education, Health, Journalism, Government, Environment, and Media.

Topics of interest of the track include (but are not limited to):
• Adaptive authoring and design of hypermedia
• Adaptive hypertext frameworks and toolkits
• Community and social circle evolution
• Crowdsourcing and social media
• Enhancing hyperspace with recommendations
• Expertise and trust in online social networks
• Hypermedia classification and metadata systems
• Information diffusion in social networks
• Information interfaces and navigation support
• Information visualization of social data
• Language analytics in social media
• Mobile hypermedia and social media
• Narrative generation and presentation
• Personalisation for hypermedia and social networks
• Social information seeking and retrieval
• Social network and social media analytics
• Spam and malicious activity discovery in social systems
• Spatio-temporal analysis of hypermedia and social networks
• Usability and scrutability of adaptive hypermedia
• User modelling for adaptive hypermedia

Track Chairs:
• Shlomo Berkovsky, CSIRO, Australia
• Markel Vigo, University of Manchester, UK


The need to make data available on the Web using formats and protocols that make them easier to consume by potential data reusers has been widely recognised and accepted by data owners.     This is especially the case with Open Government Data initiatives, although this need has also arisen and dealt with in areas such as Culture, Journalism, Science, etc.     Besides the obvious method of placing isolated datasets as files on Web servers, probably with some simple metadata associated to them, several other alternative methods have been proposed for making different types of data available on the Web: Linked Data, CSV on the Web, REST APIs, etc. Once these are available, they can be used inside data value chains to generate more added-value data, data-intensive applications, etc.

This track deals with the methods, techniques and technologies that can be used to make data available on the Web, with a special focus on how heterogeneous data sources can be connected to each other, hence breaking data silos on the Web.     We are not only focused on using Linked Data approaches, which sit naturally for this purpose, but also on any other alternative approaches that may allow for such data publishing, description and interlinking.     In fact, we welcome submissions that address any of the steps of the data-on-the-Web lifecycle, including the creation, interlinking, entity and relation extraction, semantic annotation, analysis and modeling, dynamics and evolution, and applications of connected data on the Web.

Topics of interest include, but are not limited to:
• Web and connected data publication, annotation and curation
• Web and connected data linking and integration
• Web and connected data wrangling
• Analysis, mining, modeling and management of Web and connected data, including Linked Data, knowledge graphs, Web tables, and social network data
• Web and connected data dynamics and evolution
• Web and connected data provenance, privacy, and trust
• Web and connected data in scholarly communication and publication
• Crowdsourcing for Web and connected data
• Applications using Web and connected data for the Web, mobile devices, and social media
• Scalability of data connectivity and linking algorithms and infrastructures
• User experience with Web and connected data
Track Chairs:
• Oscar Corcho, Universidad Politιcnica de Madrid and LocaliData, Spain
• Erjia Yan, Drexel University, USA


With its wide-spread adoption, the World Wide Web has become a highly detailed yet biased reflection of human social behavior. The web in general and social media in particular have become attractive textual and non-textual data sources that potentially capture aspects of how people think/feel/behave in social situations (social psychology), relate to each other (sociology), govern themselves (political science), handle wealth (socioeconomics), or create culture (anthropology). While these phenomena have received attention from different communities, understanding human social behavior via unobtrusive methods (i.e. methods where the researcher doesn’t intrude into the research context) remains a challenging endeavor and an open problem. Tackling these challenges requires the development of new methods, instruments and techniques as well as an interdisciplinary effort from researchers across disciplines.
In this track, we seek submissions contributing to studies of the web from an interdisciplinary perspective. In particular, we are seeking to attract work on the intersection between computer science on one hand, and the humanities and social sciences on the other.
Topics of interest of the track include (but are not limited to):
• Studies of human culture based on online social networks and encyclopedia, computational methods to assess human culture along different dimensions (such as language, food, music, literature etc)
• Using social media to study psychological phenomena, and corresponding methods to assess psychological phenomena via web-based investigations
• Biases in social media, such as population biases, channel bias, self-selection bias, etc and computational methods for assessment and correction
• The study of limitations of tools used in digital humanities, extension of traditional source criticism into the development of systematic “tool criticism”
• Social and individual inequalities on the web, e.g. gender or race disparities, computational methods and instruments to assess and track inequalities
• Studies of political processes and dynamics on the web, such as elections, political unrest, grassroots movements
• Predictions with social media, e.g. stock markets, spread of language, culture, memes or diseases.
• Longitudinal studies of social phenomena and social change on the web
• Computational methods to assess and improve social and/or individual well-being via the web
• Studies investigating the role and causal impact of algorithms in facilitating social interactions on the web
• Innovative instruments for distant reading and quantitative methods in humanities and social sciences
• (Semi-)automated instruments to annotate social media data with constructs relevant for social sciences / the humanities.
Track Chair:

• Jacco van Ossenbruggen, Centrum Wiskunde & Informatica (CWI) & VU University, The Netherlands
• Markus Strohmaier, GESIS / University of Koblenz-Landau, Germany

— Important Dates for Research Tracks

03 April 2015: Research paper submission deadline
29 May 2015: Research paper notifications
19 June 2015: Camera ready deadline
02 - 04 September: Hypertext 2015 conference

— Venue —
The Hypertext 2015 conference will be held in the Culture and Convention Center (CCC) at Middle East Technical University Northern Cyprus Campus (METU NCC).

— Organisation —
General Chair
Yeliz Yesilada, Middle East Technical University Northern Cyprus Campus

Program Chairs
Rosta Farzan, University of Pittsburgh, USA
Geert-Jan Houben, Delft University of Technology, The Netherlands

Workshop and Tutorial Chairs
Alvin Chin, Microsoft, China
Ethan Munson, University of Wisconsin-Milwaukee, USA

Posters and Demos Chair
Jessica Rubart, University of Applied Sciences Ostwestfalen-Lippe, Germany

Doctoral Consortium Chairs
Denis Parra, Catholic University of Chile, Chile
Christopher Trattner,Norwegian University of Science and Technology, Norway

Proceedings Chair
Claus Atzenbeck, Hof University, Germany

Caring, Child Care and Disability Support Chairs
Andy Brown, BBC, UK
Caroline Jay, University of Manchester, UK

Treasurer and Local Chair
Ilknur Celik, Middle East Technical University Northern Cyprus Campus

Publicity Chairs
Federica Cena, University of Torino, Italy
Michael Yudelson, Carnegie Learning, Inc., USA

Local Publicity Chair
Elgin Akpinar, Middle East Technical University, Turkey

Web Chair
Sukru Eraslan, Middle East Technical University Northern Cyprus Campus

SIGWEB Representative and Liason
Simon Harper, University of Manchester, UK


Call for Papers: Special Issue on Networked Knowledge Organization Systems (NKOS)
To be published in the International Journal on Digital Libraries <>

If you are thinking of submitting it would be helpful if you could let us know so that we can start planning for the review process.

Important Dates
Paper Submission deadline: January 5, 2015
First notification: March 31, 2015
Revision submission: May 31, 2015
Second notification: July 31, 2015
Final version submission: September 1, 2015

Guest Editors
- Philipp Mayr, GESIS - Leibniz Institute for the Social Sciences, Germany (contact person)
- Douglas Tudhope, Hypermedia Research Unit, Faculty of Computing, Engineering and Science, University of South Wales, UK
- Xia Lin, College of Computing and Informatics, Drexel University,Philadelphia, PA 19104, USA
- Stella Dextre Clarke, Information Consultant and Chair, ISKO UK, Luke House, UK
- Marcia Lei Zeng, School of Library and Information Science, Kent State University, Ohio, USA

Description & Objectives
Since 1998, NKOS as a community has been concerned with discussion of the different ways knowledge organization systems (KOS), such as classification systems, thesauri, gazetteers, and ontologies, can act as networked interactive information services that support the description and retrieval of diverse information resources through the Internet. KOS model the underlying semantic structure of a domain for information retrieval purposes. Embodied as Web-based services, they can facilitate resource discovery and retrieval. They act as semantic road maps and make possible a common orientation by indexers and future users (whether human or machine).

Today, KOS play a crucial role in digital information management and applications generally. Carrying semantics in a well-controlled and documented way, KOS serve a variety of important functions: tools for representation and indexing of information and documents, knowledge-based support to information searchers, semantic road maps to domains and disciplines, communication tool by providing conceptual framework, and conceptual basis for knowledge based systems, e.g. automated classification systems.

NKOS workshops ( have focused discussion (amongst other topics) on early drafts of BSI and ISO KOS standards, the W3C SKOS standard, the interface between traditional Library Science vocabularies and Semantic Web efforts, KOS linked data, mapping and linking between vocabularies, meaningful concept display and visualization, KOS-based user interfaces and user evaluation, social tagging and its relation to established vocabularies, KOS metadata and the different types of KOS.

This focused issue arises from topics covered by the NKOS workshop series but invites submissions from all researchers in the general area. All submissions within the broad NKOS/KOS scope are welcome; the special issue calls for papers by KOS researchers and developers from different perspectives, such as KOS design and construction, API and service developers, retrieval-support implementations, user-oriented issues, management of KOS in registries, etc.

This special issue will solicit high quality papers that demonstrate exceptional achievements on KOS, including but not limited to:
•           Mapping between KOS Linked Data vocabularies
•           Meaningful Concept Display and Meaningful Visualization of KOS
•           Applications of KOS systems in relation to 'Big data'
•           KOS-based recommender systems for suggestion of meaningful concepts.
•           KOS in e-Research metadata contexts - intersection between research data, KOS and the Semantic Web.
•           Management and integration of multiple vocabulary types
•           SKOS extensions
•           Social tagging. The role of social tagging and informal knowledge structures versus established KOS.
•           Users' interaction with KOS in the online environment.
•           Quality issues in web-based KOS. Issues concerning large metadata sets. Version management.
•           KOS and learning. The requirement for using KOS effectively to convey meaning, to assist users expressing their information needs, and to facilitate in sense making and learning.
•           Multilingual and Interdisciplinary KOS applications and tools.

Submission Details
Papers submitted to this special issue for possible publication must be original and must not be under consideration for publication in any other journal or conference. Previously published or accepted conference papers must contain at least 30% new material to be considered for the special issue. All papers are to be submitted by referring to At the beginning of the submission, under “Article Type”, please select the appropriate special issue. All manuscripts must be prepared according to the journal publication guidelines which can also be found on the website provided above or here <>. Papers will be reviewed following the journal standard review process.

Please address inquiries to This e-mail address is being protected from spambots. You need JavaScript enabled to view it. .


The 13th European NKOS workshop will take place on the afternoon of Thursday Sept 11th and  morning  of Friday 12th. as part of JDL 2014 (joint JCDL/TPDL conferences) in London.

Important Dates:
Submission deadline: Monday 23 June 2014
Notification of acceptance: Monday 14 July 2014

Proposals are invited for the following:

a) Presentations (typically 20 minutes plus discussion time, potentially longer if warranted) on work related to the themes of the workshop (see below). An option for a short 5 minute project report presentation is also possible.

b) Demos on work related to the themes of the workshop (see below).

Please email proposals (maximum 1000 words for presentations and 500 words for demos, including aims, methods, main findings and underlying work, relevance to themes of workshop) to Douglas Tudhope (douglas.tudhope at Proposals will be peer-reviewed by the program committee. At least one presentation author needs to register for the workshop by Monday 4 August (this is a strict requirement).

After the workshop, copies of presentations will be made available on the workshop website. Presentations from the workshop may be encouraged to be submitted as extended papers for peer reviewed journal publication.

Themes for the 13th NKOS workshop will be:
1) Mapping between Linked Data vocabularies.
This last year has seen a major growth in Linked Data publication of KOS. How can we encourage and support quality linking between this vocabularies.
How should these mappings be described in metadata? What methods are appropriate for creating mappings? We need discussion of practical initiatives to link between congruent vocabularies and provide effective web services and APIs so that applications can build upon them.

2) Meaningful Concept Display and Meaningful Visualization of KOS. Visualization has been an
important application domain for KOS and often a driver for KOS use in Digital Libraries.

3) Applications of KOS systems in relation to 'Big data' - natural language processing and semantic analysis of content pose huge challenges.

Further presentations/demonstrations will be selected from current KOS applications, including:
4) KOS-based recommender systems for suggestion of meaningful concepts.
5) KOS in e-Research metadata contexts - intersection between research data, KOS, Semantic web.
6) Social tagging. What is the role of social tagging and informal knowledge structures versus
established KOS?
7) Users interaction with KOS in the online environment.
8) Quality issues in web-based KOS. Issues concerning large metadata sets. Version management.
9) KOS and (e)learning.
10) Multilingual and Interdisciplinary KOS applications and tools.
11) Specific domains, such as environmental, medical, new application contexts, etc

More information on the workshop can be found under


Doctoral Consortium at the ACM Symposium on Document Engineering

Call for Submissions

Submission Deadline: June 1, 2014 (24:00 CEST)

Notification of Acceptance: June 30, 2014


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