Claus Atzenbeck

Claus Atzenbeck
Hof University of Applied Sciences · Institute of Information Systems (iisys)

Professor

About

106
Publications
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212
Citations

Publications

Publications (106)
Article
Federica Cena is an associate professor at the Computer Science Department of the University of Turin and the head of "Smart City Lab" of academic center ICxT (from October 2015) (http://icxt.di.unito.it). She works on the intersection of Artificial Intelligence and Human-Computer Interaction. In the last years, she is mainly devoted to studying th...
Article
Dr Charlie Hargood is a Principal Academic in Games Technology in the Department of Creative Technology at Bournemouth University, UK. He has long been a contributor to Hypertext research and the ACM Hypertext Conference where he has twice won ACM SIGWeb's Engelbart Award. He is also Information Director for the ACM SIGWeb executive committee, and...
Chapter
Information retrieval systems support users in finding relevant information in data sets. List layouts are wide-spread, but spatial layouts are catching up. User studies that systematically show their benefits for users are missing. We report on a comparative between-subject study with 43 participants comparing a spatial layout with a list layout....
Article
Full-text available
Historically, there has been a tendency to consider hypertext as a type of system, perhaps characterised by provision of links or other structure to users. In this article, we consider hypertext as a method of inquiry, a way of viewing arbitrary systems. In this view, what are traditionally called “navigational hypertext systems” might be considere...
Article
Norm Meyrowitz is currently an Adjunct Professor of the Practice of Computer Science at Brown University. He received an Sc.B. in Computer Science from Brown in 1981, and is recognized for his work on linking and multimedia technology for the Internet and for the evolution of Web development software. In the 1980s, Norm served as a Co-Director of B...
Article
Full-text available
Social networks use several user interaction techniques for enabling and soliciting user responses, such as posts, likes and comments. Some of these triggers may lead to posts or comments that a user may regret at a later stage. In this article, we investigate how users may be supported in reflecting upon their past activities, making use of an exp...
Article
Beat Signer is Professor of Computer Science at the Vrije Universiteit Brussel (VUB) and co-director of the Web & Information Systems Engineering (WISE) research lab. He received a PhD in Computer Science from ETH Zurich where he has also been leading the Interactive Paper lab as a senior researcher for four years. He is an internationally distingu...
Conference Paper
User behavior and the resulting behavioral data forms the basis of personalized feeds, recommendations and advertisements in social networks such as Facebook. These platforms are now required to provide users with their personal data. However, these dumps with chronological data in different files do not provide users insight in overarching themes...
Article
John F. Barber convenes with The Creative Media & Digital Culture Program at Washington State University Vancouver, USA. His scholarship, teaching, and creative endeavors arise from intersections of art, humanities, and technology and manifests as literary media art where he feels that practice-based research discovers and puts into action new know...
Article
Dr. Anastasia Salter is the Director of Graduate Programs for the College of Arts and Humanities, including the innovative interdisciplinary doctoral program in Texts & Technology. They have authored five books that draw on humanities methods alongside computational discourse and subjects, including most recently Adventure Games: Playing the Outsid...
Article
Belinda Barnet is Senior Lecturer in Media & Communications at Swinburne University, Melbourne. She is the author of "Memory Machines: the Evolution of Hypertext" (Anthem Press UK, 2013), which can be obtained, e.g., via https://amzn.to/2KjqlYH. Alongside her research career, Dr Barnet has worked as Service Delivery Manager (Wireless Content Servic...
Book
The ACM Hypertext conference is a premium venue for high quality peer-reviewed research on hypertext theory, systems and applications. It is concerned with all aspects of modern hypertext research including social media, semantic web, dynamic and computed hypertext and hypermedia as well as narrative systems and applications.
Conference Paper
Full-text available
In this paper, we describe our project DemoMedia, a software demonstrator that combines hypertext and recommender functionality in the context of video acquisition or use. DemoMedia fills the gap that exists in today's video platforms which include recommender functionalities, but only trivial support for users to structure information. Thus, users...
Book
HUMAN '19 is the second workshop of a new series for the ACM Hypertext conferences. It has a strong focus on the user and thus is complementary to the strong machine analytics research direction that could be experienced in previous conferences. The user-centric view on hypertext not only includes user interfaces and interaction, but also discussio...
Conference Paper
Full-text available
The task of organizing and retrieving knowledge is often elaborative and involves different types of media including digital or analog. In this paper we describe a system that is based on related research in the fields of spatial hypertext, information retrieval, and visualization. It utilizes a 2D space on which users can add, remove, or manipulat...
Conference Paper
Full-text available
Historically, there has been a tendency to consider hypertext as a type of system, perhaps characterized by provision of links or other structure to users. In this paper, we consider hypertext as a method of inquiry, a way of viewing arbitrary systems. In this view, what are traditionally called "navigational hypertext systems" might be considered...
Article
Ben Shneiderman (http://www.cs.umd.edu/~ben) is a Distinguished University Professor in the Department of Computer Science, Founding Director (1983--2000) of the Human-Computer Interaction Laboratory (http://hcil.umd.edu), and a Member of the UM Institute for Advanced Computer Studies (UMIACS) at the University of Maryland. He is a Fellow of the AA...
Article
Dene Grigar is Professor and Director of The Creative Media & Digital Culture Program at Washington State University Vancouver whose research focuses on the creation, curation, preservation, and criticism of Electronic Literature, specifically building multimedial environments and experiences for live performance, installations, and curated spaces;...
Technical Report
Full-text available
Schlussbericht zum Pilotprojekt HEIMDALL. – HEIMDALL („Intelligente Benutzerschnittstelle“) ist ein Unterprojekt des Projekts ODIN („Open Data Innovation“). Das Projekt wurde finanziert vom BMBF.
Article
Dongwon Lee is an associate professor in the College of Information Sciences and Technology (a.k.a. iSchool) of the Pennsylvania State University, USA. From 2015 to 2017, in addition, he has served as a rotating program director at National Science Foundation (NSF), managing cybersecurity and data science programs. Since he obtained his Ph.D. in Co...
Book
Welcome to the Human Factors in Hypertext 2018 workshop (HUMAN'18) in Baltimore, Maryland, USA, the first workshop of a new series of workshops for the ACM Conference on Hypertext and Social Media. It has a strong focus on hypertext users and thus complements the machine analytics research that we experienced in previous conferences. The user-centr...
Poster
Full-text available
The idea to associate information with so-called links was developed by hypertext pioneers in the 1960s. In the 1990s the Dexter Hypertext Reference Model was developed with the goal to provide a general model for node-link hypertext systems. In the 1990s and 2000s there were important steps made for hypertext infrastructures, which led to componen...
Conference Paper
Full-text available
The idea to associate information with so-called links was developed by hypertext pioneers in the 1960s. In the 1990s the Dexter Hypertext Reference Model was developed with the goal to provide a general model for node-link hypertext systems. In the 1990s and 2000s there were important steps made for hypertext infrastructures, which led to componen...
Article
Siegfried Reich has been a scientific director of Salzburg Research since 2003. Salzburg Research is a non-profit research and technology organization (RTO), which conducts applied research in information and communication technologies (ICTs), focused on the "Internet of Things". His research interests are in Web Engineering, hypermedia systems, an...
Conference Paper
Full-text available
Software applications become more and more dominant in our daily life and work. However, it is very difficult to provide sophisticated tools for all arising use cases. End-User Development (EUD) is a term that describes the development of applications by end users rather than professional developers. This enables them creating highly specialized so...
Article
Andries van Dam, is the Thomas J. Watson Jr. University Professor of Technology and Education and Professor of Computer Science at Brown University. He has been a member of Brown's faculty since 1965, was a co-founder of Brown's Computer Science Department and its first Chairman from 1979 to 1985, and was also Brown's first Vice President for Resea...
Article
Professor Leslie Carr is Head of the Web and Internet Science research group and a Director of the Web Science Institute at the University of Southampton where he researches the impact of network technologies on our lives and economy, and in particular on the research and knowledge industries. Professor Carr runs the EPrints Services business that...
Article
Peter Dolog is associate professor at the department of computer science, Aalborg University in Denmark where he works since September 2006. His main research interests are applied machine learning, personalization, recommender systems, user modeling, and web science and engineering. Peter Dolog is a general chair of ACM Hypertext 2017 conference....
Conference Paper
Full-text available
Specialized systems aiming at offering hypertext functionality in users' computing have been discussed since the early days of hypertext. However, with the claim to also support other structure domains than node-link structures, hypertext systems had to overcome some challenges. Researchers came up with component-based approaches and low level stru...
Article
Prof. dr. Paul De Bra is Full Professor in the Department of Computer Science at the Eindhoven University of Technology (TU/e). He holds a doctorate in mathematics and computer science from the University of Antwerp, Belgium (1987), with a thesis on Horizontal Decomposition in the Relational Database Model. During 1988 and 1989 he was a post-doctor...
Article
Niels Olof Bouvin is 45 years old, and is an associate professor at the Department of Computer Science, Aarhus University, Denmark. His 2001 PhD dissertation was on the topic of augmenting the web with open hypermedia. He was a co-winner of the Douglas Engelbart Best Paper Award in 1997 and 2006.
Conference Paper
Spatial hypertext represents associations between chunks of information by spatial or visual attributes (such as proximity, color, shape, etc.). This supports expressing information structures implicitly and in an intuitive way. However, automatic recognition of such informal, implicitly encoded structures by a machine (a so-called spatial parser)...
Article
Helen Ashman has been interested in hypertext and user profiling for two decades now, initially in adaptive hypermedia systems, later including intrusion detection systems, and now in authorship attribution applications such as plagiarism detection and astroturfing detection. She was at the Australian Defence Science and Technology Organisation unt...
Article
Dick Bulterman is a professor of computer science at the Vrije Universiteit Amsterdam and a senior researcher at CWI: Centrum Wiskunde en Informatica, also in Amsterdam, where he has worked since 1988. From 2013--2015 he was President and CEO of FX Palo Alto Laboratories in California. From 1988--2013, he was head of the group Distributed and Inter...
Article
Eelco Herder works as a senior researcher at the L3S Research Center in Hannover, Germany. His main research interests include Web personalization, User Modeling, usability and HCI in general. Other research topics include Web usage analysis and the development of tools for Personal Information Management. His Ph.D. research at the University of Tw...
Article
Jamie is an Associate Professor (of Computer Science and Information Management) and director of the HAIKU (Hypertext Augmenting Intelligent Knowledge Use) research group at Dalhousie University. Jamie co-authored the ACM's first-ever hypertext-format conference article outside of the Hypertext conference.
Article
Yeliz Yesilada is an Assistant Professor at Middle East Technical University Northern Cyprus Campus (METU NCC) since 2009. She has previously worked as a postdoctoral research fellow in the School of Computer Science at the University of Manchester. She has received her B.Sc. in Computer Engineering from the Eastern Mediterranean University, Cyprus...
Article
Munmun De Choudhury is an assistant professor at the School of Interactive Computing, Georgia Tech and a faculty associate with the Berkman Center for Internet and Society at Harvard. Munmun's research interests are in computational social science, with a specific focus on reasoning about health behaviors from social digital footprints. She has bee...
Article
Kumiyo Nakakoji is currently a professor at the Unit of Design, Center for the Promotion of Interdisciplinary Education and Research, Kyoto University. She has also been directing the Key Technology Laboratory, Software Research Associates, Inc., Japan. She received her B.S. in information engineering from Osaka University, Japan (1986) and M.S. (1...
Article
Bebo White is a Departmental Associate (Emeritus) at the SLAC National Accelerator Laboratory, the U.S. national laboratory for high-energy physics and basic energy science at Stanford University. Working as a computational physicist, he first became involved with the emerging Web technology while on sabbatical at CERN in 1989. Upon his return he w...
Article
David Hicks is an Associate Professor with the Institute for Electronic Systems at Aalborg University. Previously he has served as Department Head for the Department of Computer Science and Engineering at Aalborg University's Esbjerg campus. He has also held positions in international research labs in the US as well as Europe, and spent time as a s...
Article
The Institute of Information Systems (iisys) is a young and upcoming research institute at Hof University, Germany, with a broad focus on information systems. Four scientific teams perform top level research in national and international projects. Additionally, associated experts add specific expertise of various application domains. Some of its re...
Article
Dr. Jessica Rubart (http://www.jessicarubart.de) is professor for business information systems at the University of Applied Sciences Ostwestfalen-Lippe, Germany, and SIGWEB's current Newsletter Editor. She has a strong industry background as software architect, project manager, system analyst, and software developer. Her main research areas are fle...
Conference Paper
As multitouch phones and tablets become more popular, multitouch technologies receive increasing attention. The underlying interaction paradigm of such devices is the space on which objects are manipulated by the user's fingertips. It is natural that hypertext narratives find their way from primarily mouse-driven interaction to spatial structures a...
Article
Ken Anderson is an associate professor in the Department of Computer Science at the University of Colorado Boulder. He is a fellow of CU's ATLAS Institute and the co-director of Project EPIC (http://epic.cs.colorado.edu), where he helped to design a large-scale data collection infrastructure for collecting tweets generated during times of mass emer...
Article
David Millard is a Senior Lecturer of Computer andWeb Science at the University of Southampton, UK, and is also an Associate Director of the University's Centre for Innovation in Technology and Education. He has been lucky enough to be involved in Hypertext and Web research for over fifteen years, firstly in the area of Open, Adaptive and Contextua...
Article
Prof. Dr. Dirk Riehle, M.B.A., is the Professor for Open Source Software at the Friedrich-Alexander University of Erlangen-Nürnberg. Before joining academia, Riehle led the Open Source Research Group at SAP Labs, LLC, in Palo Alto, California (Silicon Valley). Riehle founded the Wiki Symposium, a conference dedicated to wiki research and practice....
Article
Markus Strohmaier is an Assistant Professor at Graz University of Technology, and a Visiting Assistant Professor at Stanford University (USA) during the 2011/12 academic year. In addition he is a Distinguished Visiting Scholar at Stanford University's Media-X program (since 2010) and has been a visiting scientist/professor at XEROX Parc (2009, 2010...
Article
Simon Harper is Chair of ACM SIGWEB, a Senior Lecturer in Computer Science at the University of Manchester, a Senior Member of the Association for Computing Machinery (ACM), Chair of the W3C WAI Research and Development Working Group, and research lead for the Web Ergonomics Laboratory, in Manchester. He is interested in how users interact with the...
Article
Ethan Munson is a Professor of Computer Science at the University of Wisconsin-Milwaukee. He received a Ph.D. in Computer Science from the University of California, Berkeley in 1994. His research focuses on tools for managing software documents and on human-computer interaction. Dr. Munson is a recipient of a National Science Foundation CAREER awar...
Conference Paper
Some countries suffer from terrorism much more than others, Turkey as one of the most suffering countries who owns about a hundred terrorist groups; most of these organizations cooperate, and interchange knowledge, skills, materials used for terrorist attacks. From criminological perspective terrorist networks of Turkey are categorized into three m...
Conference Paper
Most of terrorist groups cooperate, interchange knowledge, skills and materials used for attacks. Terrorist groups in Istanbul are categorized into three main groups within criminological viewpoint: extreme left (i.e. Marxist) groups, extreme right (i.e. Fundamentalist, Radical Islamist) groups, and separatist (i.e. ethnic, racist) groups. Crime on...
Article
This paper investigates sources of crime data mining, methodologies for knowledge discovery, by pointing out which forms knowledge discovery is suitable for which methodology. Furthermore, it identifies which data sources should be used for which knowledge discovery form in crime data mining. Similarities and differences between crime data mining m...
Article
Since completing his ScB and ScM at Brown University in 1970 and his PhD in Computer Science at the University of Toronto in 1974, Frank Tompa has been on the faculty in Computer Science at the University of Waterloo. He has also worked for periods of several months at the Oxford University Press, Bellcore, Microsoft Research, the University of Tor...
Chapter
Call Detail Records (CDR) are commonly used by police and intelligence services all over the world. In many countries, GSM operators are obligated to keep CDR data for all of their subscribers. For prosecutors, courts, and judges investigating criminal cases it is beneficial to use CDR data. This case study shows how mining CDR data helped in the i...
Article
Dr. Peter King has been active in digital documents and hypertext for almost thirty years. He was one of the founders of the Electronic Publishing conference series and of the ACM Symposium on Document Engineering, whose Steering Committee he now chairs. He holds the position of Professor Emeritus of Computer Science at the University of Manitoba i...
Article
Based on the emergent nature of terrorist groups, we pro- pose spatial hypertext as a tool for intelligence analysts for representing, reasoning upon, and communicating information. Furthermore, we eval- uate awareness as an important feature for analysts to realise hidden associations between various people or objects. We also evaluate and discuss...
Article
Full-text available
Data collection of covert networks is an inherently difficult task because of the very nature of these networks. Researchers find it difficult to locate and access data relating to the structure and function of such networks in order to study this extreme social phenomenon. In addition, information collected by intelligence agencies and government...
Article
Jill Walker Rettberg is Associate Professor of Digital Culture at the University of Bergen, where she researches online narratives and social media. She is the author of "Blogging" (Polity Press, 2008) and co-editor of "Digital Culture, Play and Identity: A World of Warcraft Reader" (MIT Press, 2008). She has published on electronic literature, hyp...
Article
Manolis Tzagarakis is a Lecturer at the University of Patras, Greece and a researcher at the Computer Technology Institute. He holds a diploma from the Department of Computer Engineering and Informatics of the University of Patras, and a Ph.D. from the same university. His research interests includes hypermedia, structural computing, Web-technologi...
Article
Manolis Tzagarakis is a Lecturer at the University of Patras, Greece and a researcher at the Computer Technology Institute. He holds a diploma from the Department of Computer Engineering and Informatics of the University of Patras, and a Ph.D. from the same university. His research interests includes hypermedia, structural computing, Web-technologi...
Conference Paper
Four group detection models (e.g. GDM, OGDM, SoDM and ComDM) are developed based on crime data features. These detection models are compared more common baseline SNA group detection algorithms. It is intended to find out, whether these four crime data specific group detection models can perform better than widely used k-core and n-clique algorithms...
Article
Peter Brusilovsky has been working in the field of adaptive hypermedia and adaptive Web-based systems for more than 20 years. He served as a co-editor of several books and a guest editor of several special journal issues on adaptive hypermedia and the adaptive Web. He co-founded the Adaptive Hypermedia conference series and chaired several conferen...
Article
Ricardo Baeza-Yates is VP of Yahoo! Research for Europe and Latin America, leading the labs at Barcelona, Spain and Santiago, Chile, since 2006, as well as supervising the newer lab in Haifa, Israel. Until 2005 he was the director of the Center for Web Research at the Department of computer science of the Engineering School of the University of Chi...
Article
Kaj Grønbæk received his PhD in 1991 from University of Aarhus, Denmark. Since 1999 he is full professor at the Department of Computer Science, University of Aarhus, Denmark. He is a manager of the interdisciplinary Center for Interactive Spaces. His research includes hypermedia, Web-technologies, interactive spaces, augmented reality, context-awar...
Article
Ian Horrocks is a Professor in the Oxford University Computing Laboratory. He is internationally recognised for his work on ontology languages and reasoning systems. He was centrally involved in the development of the OIL, DAML+OIL and OWL ontology languages, and is co-chair of the W3C Working Group that is developing OWL 2. He has published more t...
Conference Paper
Law enforcement officers deal with various challenges regarding the management of information during an investigation. New information comes in frequently, some of it is uncertain, incorrect, or incomplete. Officers should be supported in developing interpretations of the provided information. Furthermore, it is beneficial (and demanded by some inv...
Conference Paper
This paper focuses on police investigations conducted by small teams of officers as they usually work on solving violent crimes. Collaboration and communication are important aspects as well as connecting pieces of information that become known to the officers over time. This is an important application domain of knowledge management, and in partic...
Article
David Brailsford is the John Dunford Emeritus Professor of Computer Science at the University of Nottingham, UK. In 1986 he co-founded the Computer Science department and he was appointed to the Dunford chair in 1990. He served as Head of Department from 1990 to 1998. Since 1982 his research interests have focused on digital documents and on docume...
Conference Paper
For decades hypertext has provided a means for structuring information. Versioning has been perceived as very important for hypertext, but research focusing on it has targeted almost exclusively one type of hypertext application: navigational hypertext (i.e., node-link structures). Spatial hypertext is an alternative paradigm for associating inform...
Article
George P. Landow is Professor of English and the History of Art, Brown University and Founder, Editor-in-chief, and Webmaster of The Victorian Web. His books on hypertext and digital culture include Hypermedia and Literary Studies (MIT, 1991), and The Digital Word: Text-Based Computing in the Humanities (MIT, 1993) both of which he edited with Paul...
Article
Cathy Marshall is a Senior Researcher at Microsoft Research, Silicon Valley; she has contributed to both the product and research divisions at Microsoft. Cathy has long worked in the disciplinary interstices of computer science, information science, and the humanities, with occasional collaborations in art and the sciences; one of the original memb...
Article
Frank Shipman is a Professor in the Department of Computer Science and Associate Director of the TEES Center for the Study of Digital Libraries. He has been pursuing research in the areas of hypermedia, computer-supported cooperative work, multimedia, computers and education, and intelligent user interfaces since 1987. Dr. Shipman's work at Baylor...
Conference Paper
Based on the emergent nature of terrorist groups, we propose spatial hypertext as a tool for intelligence analysts for representing, reasoning upon, and communicating information. Furthermore, we evaluate awareness as an important feature for analysts to realise hidden associations between various people or objects. Finally, we discuss our prototyp...
Article
Mark Bernstein is chief scientist at Eastgate Systems, Inc. A graduate of Swarthmore College, he received his Ph.D. (in physical chemistry) from Harvard University. After helping to organize Eastgate in 1982, he joined the research staff at the Artificial Intelligence group at E. I. duPont de Nemours & Co., where here remained until returning to Ea...
Article
Wendy Hall is Professor of Computer Science at the University of Southampton, UK, and was Head of the School of Electronics and Computer Science from 2002 to 2007. Her team invented the ground-breaking Microcosm hypermedia system, which pre-dated the Web, and for which a patent was granted. Her research interests now include the development of web...
Conference Paper
Many wikis provide good workspace awareness. Users see quickly what changes have been made or get notied about modications on selected pages. However, they do not sup- port a more sophisticated social or group awareness. Being aware of social structures is important for collabo- rative work. Adequate tools permit team members to reect upon their an...
Article
Uffe Kock Wiil is a professor at the Maersk Mc-Kinney Moller Institute, University of Southern Denmark. He holds a M.Sc. in Computer Engineering (1990) and a Ph.D. in Computer Science (1993) from Aalborg University, Denmark. He has previously held positions at Aalborg University and University of Aarhus (both in Denmark). He also spent time visitin...
Article
Peter J. Nürnberg is a Managing Partner of Xtructure, LLC, a company founded in 2002 to provide network modeling and simulation tools. He received his M.S. (1994) and Ph.D. (1997) in Computer Science at Texas A&M University, working on hypermedia and structural computing infrastructures. He spent two years at the University of Aarhus, Denmark, befo...
Article
Structural computing represents a form of hypertext, in which structure is foregrounded in the analysis, design and implementation of systems. Until now, the vast majority of structural computing work has focused on the implementation of frameworks. The applications implemented in these environments are often reimplementations of existing hypertext...
Conference Paper
People have become used to paper as an information carrier over thousands of years. Paper is usually easy to handle and has been adopted as a metaphor for information structures in computer applications. This article gives a brief overview of our analysis on real world bindings. We further compare those to some metaphor-based spatial structure appl...
Article
In general, metainformation plays an important role in knowledge management for finding information. However, adding metainformation usually takes additional time. We work on WildDocs, a spatial-based knowledge management system. One of its main tasks is providing implicit metainformation that was added automatically during the structuring process...
Conference Paper
Spatial structure supporting applications offer an abstract level of what can be found in the real world. However, in many systems, objects are aligned straight, rotation is not possible, they can be resized easily and can hold more text than is visible on the screen. Paper and structures created with paper seem to be more limited: Straight alignme...

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Projects (2)
Archived project
HEIMDALL (“Intelligent User Interface”) is a subproject of the joint research project ODIN (“Open Data Innovation”), funded by the German Federal Ministry of Education and Research (BMBF). Its goal is to find suitable software components (so-called “Cubbles”) and appropriately associate them for advanced data analytics. This happens in a 2D-space, in which these modules can be placed and connected. HEIMDALL analyses the structures created by a human user and assists by searching for and applying new components. As such, HEIMDALL fosters a creative process which helps users to reach appropriate solutions efficiently.