This document describes TeLLNet, a research project that aims to support communities on the web through reflection. It discusses community information systems, modeling community dependencies using the i* framework, analyzing social networks and disturbances in communities, and applying these techniques to case studies of open source software communities and a knowledge network of computer science research. The goal is to help communities better understand themselves and their learning and collaboration processes through reflective social network analysis and visualization tools.
Learning Analytics at Large: the Lifelong Learning Network of 160, 000 Europe...Ralf Klamma
Ergang Song, Zinayida Petrushyna, Yiwei Cao, and Ralf Klamma
Information Systems and Databases, RWTH Aachen University
EC-TEL 2011
Palermo, Italy
September 23, 2011
Learning Analytics at Large: the Lifelong Learning Network of 160, 000 Europe...Ralf Klamma
Ergang Song, Zinayida Petrushyna, Yiwei Cao, and Ralf Klamma
Information Systems and Databases, RWTH Aachen University
EC-TEL 2011
Palermo, Italy
September 23, 2011
Supporting Professional Communities in the Next Web Ralf Klamma
Keynote
PWM Wissenstag Social Enterprise @ I-KNOW 2013
Wednesday, September 4, 2013 in Graz (Austria)
Ralf Klamma
Advanced Community Information Systems (ACIS)
RWTH Aachen
Advanced Community Information Systems Group (ACIS) Annual Report 2013Ralf Klamma
Advanced Community Information Systems (ACIS)
Lehrstuhl Informatik 5 – Information Systems
RWTH Aachen University
Ahornstr. 55 | 52056 Aachen | Germany
Talk given at WCC2010 in Brisbane (KCKS 2010); Title:
EU Project MATURE / R&D RG DDI: ICT-Support for Knowledge Maturing in Learning Organizations and Communities
Herget, Josef. Learning and Working in the Web 2.0: Reconstructing Information and Knowledge. 4th International LIS-EPI meeting, Valencia, 26-27 de noviembre de 2009.
Ticet 2012 conference: elearning Virtual Centres Miguel Gea
The role of an e-leaning Centre in Higher Education Institutions
1st International Conference on Information and Communication Technologies for Education & Training, Hammamet (Tunis) 2012
http://www.ticet.org/
Telecommunication Networks and integrated Services (TNS) Living LabProf. P. Demestichas, Dr K. Tsagkaris, Dr G. Athanasiou, Dr Y. Kritikou, ENoLL 5th Wave, May 16th 2011.
The SeOppi Magazine is the only Finnish magazine in the field of elearning. It is a membership bulletin of the Association of Finnish eLearning Centre.
The SeOppi Magazine offers up-to-date information about the latest phenomena, products and solutions of e-learning and their use. The magazine promotes the use, research and development of e-learning and digital education solutions in companies, educational establishments and other organizations with the help of the best experts.
The SeOppi Magazine gathers professionals, companies, communities and practitioners in the field together and leads them to the sources offering information about e-learning.
Supporting Professional Communities in the Next Web Ralf Klamma
Keynote
PWM Wissenstag Social Enterprise @ I-KNOW 2013
Wednesday, September 4, 2013 in Graz (Austria)
Ralf Klamma
Advanced Community Information Systems (ACIS)
RWTH Aachen
Advanced Community Information Systems Group (ACIS) Annual Report 2013Ralf Klamma
Advanced Community Information Systems (ACIS)
Lehrstuhl Informatik 5 – Information Systems
RWTH Aachen University
Ahornstr. 55 | 52056 Aachen | Germany
Talk given at WCC2010 in Brisbane (KCKS 2010); Title:
EU Project MATURE / R&D RG DDI: ICT-Support for Knowledge Maturing in Learning Organizations and Communities
Herget, Josef. Learning and Working in the Web 2.0: Reconstructing Information and Knowledge. 4th International LIS-EPI meeting, Valencia, 26-27 de noviembre de 2009.
Ticet 2012 conference: elearning Virtual Centres Miguel Gea
The role of an e-leaning Centre in Higher Education Institutions
1st International Conference on Information and Communication Technologies for Education & Training, Hammamet (Tunis) 2012
http://www.ticet.org/
Telecommunication Networks and integrated Services (TNS) Living LabProf. P. Demestichas, Dr K. Tsagkaris, Dr G. Athanasiou, Dr Y. Kritikou, ENoLL 5th Wave, May 16th 2011.
The SeOppi Magazine is the only Finnish magazine in the field of elearning. It is a membership bulletin of the Association of Finnish eLearning Centre.
The SeOppi Magazine offers up-to-date information about the latest phenomena, products and solutions of e-learning and their use. The magazine promotes the use, research and development of e-learning and digital education solutions in companies, educational establishments and other organizations with the help of the best experts.
The SeOppi Magazine gathers professionals, companies, communities and practitioners in the field together and leads them to the sources offering information about e-learning.
Finding local lessons in software engineeringCS, NcState
Tim Menzies, WVU, USA, Tsinghua University, China, Nov’09.
An observation: surprisingly few general SE results.
A requirement: need simple methods for finding local lessons.
Take home lesson: (1) finding useful local lessons is remarkably simple; (2) e.g. using “W” or “NOVA”
Learning Analytics for the Lifelong Long Tail LearnerRalf Klamma
Learning Analytics for the Lifelong Long Tail Learner
Ralf Klamma
RWTH Aachen University
Informatik 5 (DBIS)
CELSTEC, Heerlen, The Netherlands
February 24, 2011
7 συμβουλές για να γίνεται επιτυχημένοι εξ αποστάσεως σπουδαστέςChristopher Pappas
Είστε νέοι(-ες) στην εξ αποστάσεως εκπαίδευση?
Αναρωτιέστε τι θα πρέπει να περιμένετε απο ένα εξ αποστάσεως μάθημα?
Μετά απο 3 χρόνια εμπειρίας ως εξ αποστάσεως εκπαιδευτής και εκπαιδευόμενος δημιούργησα το ακόλουθο κείμενο. Διαβάστε το κείμενο που ακολουθεί και μοιραστείτε μαζί μου τις απόψεις σας…
A brief description of what a PhotoCamp is, in preparation for PhotoCampMilwaukee taking place May 2, 2009 at Bucketworks in Milwaukee, Wisconsin.
http://photocampmilwaukee.org/
Ralf Klamma
Advanced Community Information Systems (ACIS)RWTH Aachen University, Germany
klamma@dbis.rwth-aachen.de
Dresden, January 22, 2015
las2peer is a distributed, highly reliable and secure platform for creating community information systems and community services.
The main goal of las2peer is to provide a fast and flexible way to create services which may communicate with each other and their users through standard protocols. The used and stored information is handled in a trustworthy way and within full control of the communities.
Technical Challenges for Realizing Learning AnalyticsRalf Klamma
Technical Challenges for Realizing Learning Analytics
Learntec 2015, January 28, 2015, Karlsruhe, Germany,
Ralf Klamma
Advanced Community Informations Systems (ACIS) Group
RWTH Aachen University
Enhancing Academic Event Participation with Context-aware and Social Recommen...Dejan Kovachev
The plethora of talks and presentations taking place at academic conferences makes it difficult, especially for young researchers to attend the
right talks or discuss with participants and potential collaborators with similar interests. Participants may not have a priori knowledge that allows
them to select the right talks or informal interactions with other participants. In this paper we present the context-aware mobile
recommendation services (CAMRS) based on the current context (whereabouts at the venue, popularity and activities of talks and presentations)
sensed at the conference venue. Additionally, we augment the current context with the academic community context of conference participants
which is inferred by using social network analysis and link prediction on large-scale co-authorship and citation networks of participants. By
combining the dynamic and social context of participants, we are able to recommend talks and people that may be interesting to a particular
participant. We evaluated CAMRS using data from two large digital libraries - the DBLP and CiteSeerX, and participants from two conferences -
ICWL 2010 and EC-TEL 2011. The result shows that the new approach can recommend novel talks and helps participants in establishing new
connections at conference venue.
The Legacy and the Future of Research Networks in Technology-Enhanced LearningRalf Klamma
Ralf Klamma
Orphée Rendevous 2017, Font Romeu, France
Advanced Community Information Systems (ACIS) RWTH Aachen University, Germany
klamma@dbis.rwth-aachen.de
Robust Expert Finding in Web-Based Community Information SystemsRalf Klamma
Robust Expert Finding in Web-Based Community Information Systems
Ralf Klamma
Advanced Community Information Systems (ACIS)RWTH Aachen University, Germany
Social Software and Community Information SystemsRalf Klamma
Social Software links social entities on the Internet. With this term we label new communication and collaboration media like wikis, blogs, social bookmarking but also traditional media supporting communities of practice. Scientific and professional communities challenge information systems engineering with high demands on traceable and secured collaboration and processing of scientific data. Flexibility, adaptation, interoperability are only a few requirements to mention.
With the advent of international standards XML-based standards like MPEG-7 for the handling of complex multimedia metadata and service oriented architectures engineers and community facilitators can create more generic services for the many communities with diverse but professional needs. Therefore, communities have to be incorporated in the community information systems engineering process.
In the talk we present a new reflective information system architecture called ATLAS offering self observation mechanisms for the establishment of a community-centered learning and improvement process for social software.
The Personalization Challenge: Context and Culture Metadata for Mobile Learning
In this keynote, we addressed m-learning adaptation based on a standardized context description. The context description contains cultural, organization and individual factors as a base for adaptable and adaptive systems. This is used on the openscout project which is about adaptation of learning resources also in the international context.
Community Learning Analytics - Challenges and Opportunities - ICWL 2013 Invit...Ralf Klamma
Community Learning Analytics –Challenges and Opportunities
Invited Talk ICWL 2013, Kensing, Taiwan, October 7, 2013
Ralf Klamma
Advanced Community Information Systems (ACIS)
RWTH Aachen University, Germany
klamma@dbis.rwth-aachen.de
Global knowledge management_pawlowski_2012Jan Pawlowski
The extensive slideset is used for a 5ECTS course on global knowledge management. It covers theoretical aspects as well as practical issues. It is accompanied by a case study on global knowledge management as a practical application of the theoretical concepts. For further information, please contact me.The slides can be used for non-commercial purposes but please inform me how you used them!
Augmented Reality (AR) is on the way to establishing itself in business and teaching once more. However, there is a lack of uniform guidelines or even standards both in the creation of teaching materials and in the use of AR in teaching. In addition, the industry needs enough well-trained specialists who can implement the established AR concepts, making a transfer from university to industry necessary. Therefore, in this talk we address both challenges in teaching with AR and the special needs of teaching about AR.
As teaching with AR will surely advance human performance and also brings in new perspectives with the communication, coordination and collaboration of AR in supporting human performance. As computer scientists, we have a European, interdisciplinary and application-oriented perspective, as our experience comes from several funded European projects in these areas. We also incorporate new incentives into teaching contexts in our framework, such as gamification, learning analytics and experience capturing. In addition, we refer to international standardization efforts such as IEEE ARLEM.
Teaching about AR adopts a multi-perspective view. First, there is scientific and technological basic knowledge helping to understand the underlying physical and technical principles. Second, there is engineering and design knowledge to master the creation, fabrication, and utilization of AR in many ways. Third, there is the necessary pedagogical knowledge to transform these complex settings in manageable teaching scenarios and processes, e.g. for higher education curricula.
Here, teaching AR can learn from traditions of science and engineering education as well as from more recent knowledge about computer science education. Examples from recent and on-going European projects will illustrate the argumentation.
Similar to Reflection Support for Communities on the Web (20)
Gamification of Community Information SystemsRalf Klamma
SAGE Dissemination Workshop, Sousse, Tunesia, April 2017
Ralf Klamma, Mohammad Abduh Arifin
Advanced Community Information Systems (ACIS)RWTH Aachen University, Germany
klamma@dbis.rwth-aachen.de
Scaling up digital learning support for smart workforce development in cluste...Ralf Klamma
4th Research Forum on Small and Medium Sized Enterprises, Chur, Switzerland, February 9-10, 2015
Ralf Klamma & Tobias Ley
RWTH Aachen University, Germany & Tallinn University, Estonia
klamma@dbis.rwth-aachen.de & tley@tlu.ee
Technology-Enhanced Learning at the Workplace – From islands of automation to...Ralf Klamma
Technology-Enhanced Learning at the Workplace – From islands of automation to broad deployment of informal learning in small and medium sized enterprises
Invited Talk - Siegen, January 20, 2015
Ralf Klamma, RWTH Aachen
Advanced Community Information Systems Group (ACIS)
Blueprint for Software Engineering in Technology Enhanced Learning ProjectsRalf Klamma
Blueprint for Software Engineering in Technology Enhanced Learning Projects
Ralf Klamma, Michael Derntl, István Koren, Petru Nicolaescu, Dominik Renzel
RWTH Aachen University Advanced Community Information Systems (ACIS) Aachen, Germany
klamma@dbis.rwth-aachen.de
9th European Conference on Technology Enhanced Learning (EC-TEL 2014)
September 18-21, 2014
Graz, Austria
Navigation Support in Evolving Communities by a Web-based DashboardRalf Klamma
Navigation Support in Evolving Communities by a Web-based Dashboard
10th IFIP WG 2.13 International Conference on Open Source Systems, OSS 2014, San José, Costa Rica, May 6-9, 2014
Anna Hannemann, KristjanLiiva, Ralf Klamma
RWTH Aachen UniversityAdvanced Community Information Systems (ACIS)
hannemann@dbis.rwth-aachen.de
EC-TEL 2013
8th European Conference on
Technology Enhanced Learning
“Scaling Up Learning for Sustained Impact”
17-21 September 2013, Paphos, Cyprus
Call for Sponsors
The Social Requirements Engineering (SRE) Approach to Developing a Large-scal...Ralf Klamma
The Social Requirements Engineering (SRE) Approach to Developing a Large-scale Personal Learning Environment Infrastructure
Effie Lai-Chong Law, Arunangsu Chatterjee, Dominik Renzel and Ralf Klamma
Department of Computer Science, University of Leicester, UK
Chair of Computer Science 5 - Information Systems, RWTH Aachen University, Germany
EC-TEL 2012, Saarbrücken, Germany
September 21, 2012
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
"Impact of front-end architecture on development cost", Viktor TurskyiFwdays
I have heard many times that architecture is not important for the front-end. Also, many times I have seen how developers implement features on the front-end just following the standard rules for a framework and think that this is enough to successfully launch the project, and then the project fails. How to prevent this and what approach to choose? I have launched dozens of complex projects and during the talk we will analyze which approaches have worked for me and which have not.
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
• The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
• Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
• Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
• Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
Search and Society: Reimagining Information Access for Radical FuturesBhaskar Mitra
The field of Information retrieval (IR) is currently undergoing a transformative shift, at least partly due to the emerging applications of generative AI to information access. In this talk, we will deliberate on the sociotechnical implications of generative AI for information access. We will argue that there is both a critical necessity and an exciting opportunity for the IR community to re-center our research agendas on societal needs while dismantling the artificial separation between the work on fairness, accountability, transparency, and ethics in IR and the rest of IR research. Instead of adopting a reactionary strategy of trying to mitigate potential social harms from emerging technologies, the community should aim to proactively set the research agenda for the kinds of systems we should build inspired by diverse explicitly stated sociotechnical imaginaries. The sociotechnical imaginaries that underpin the design and development of information access technologies needs to be explicitly articulated, and we need to develop theories of change in context of these diverse perspectives. Our guiding future imaginaries must be informed by other academic fields, such as democratic theory and critical theory, and should be co-developed with social science scholars, legal scholars, civil rights and social justice activists, and artists, among others.
Neuro-symbolic is not enough, we need neuro-*semantic*Frank van Harmelen
Neuro-symbolic (NeSy) AI is on the rise. However, simply machine learning on just any symbolic structure is not sufficient to really harvest the gains of NeSy. These will only be gained when the symbolic structures have an actual semantics. I give an operational definition of semantics as “predictable inference”.
All of this illustrated with link prediction over knowledge graphs, but the argument is general.
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Knowledge engineering: from people to machines and back
Reflection Support for Communities on the Web
1. TeLLNet
Reflection Support for
Communities on the Web
Ralf Klamma
RWTH Aachen University
TU Delft, February 19, 2010
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0210-1
2. I5-RK-0210-2
Prof. Dr. M. Jarke
TeLLNet
Lehrstuhl Informatik 5
(Informationssysteme)
RWTH Aachen
Community Information Systems
Data Management: Mediabases
PALADIN
Case Studies
Agenda
Conclusions and Outlook
3. RWTH Aachen University
• 260 institutes in 9 faculties as Europe’s
leading institutions for science and research
TeLLNet • Currently around 31,400 students are enrolled
in over 100 academic programs
• Over 5,000 of them are international students
hailing from 120 different countries
• 1,250 spin-off businesses have created
around 30,000 jobs in the greater Aachen
region over the past 20 years.
• IDEA League
• Germany’s Excellence Initiative:
3 clusters of excellence, a graduate school
Lehrstuhl Informatik 5 and the institutional strategy “RWTH
Aachen 2020: Meeting Global Challenges”
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0210-3
4. Community Information Systems
Research Group
TeLLNet
Established at DBIS chair, RWTH Aachen University
9 Phd students & researchers
10-15 paid student workers & thesis workers
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0210-4
5. Communities of Practice
TeLLNet Analysis of Traces of
CoPs in the Web
Community of
practice (CoP) as the
Engineering of
basic research object
Community
for our Web Science
Information Systems
approach
Communities of
practice are groups of
people who share a
concern or a passion
for something they do
and who interact
regularly to learn how Wenger:
Communities of Practice:
Lehrstuhl Informatik 5
(Informationssysteme)
to do it better Learning, Meaning and
Prof. Dr. M. Jarke Identity, 1998
I5-RK-0210-5
6. i* Model of Requirements
Engineering in CoP
TeLLNet
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0210-6
7. ATLAS: Reflective IS as an
Architectural Foundation
Operational Support Community Reflective Support
Self-Modeling
TeLLNet Can we support CoPs with the Can CoPs continuously elicit and
collaborative creation of complex implement requirements? How much
multimedia objects? computer science support is needed?
Community
Can CoPs make use of metadata over Can CoPs learn meaningful social
the frontiers of media and standards? Self-Observation interaction and make use of
disturbances?
Can we support CoPs by personalized How can CoPs record their complex
knowledge management and networking media learning traces and how they can
strategies in Social Software? deal with them?
How do adaptive, mobile web-based Can CoPs maintain or even improve their
interfaces for CoPs look like? agency (Learning, Researching, Working)
in the Web 2.0?
Actor-
Agent-oriented
Network
RE
Community Theory
Information Systems Social
Participatory Community Game
Network
Design IS Design Theory
Analysis
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0210-7
Communities of Practice Media Networks
8. Solution idea for Reflective Support:
Cross-Media Social Network Analysis
Interdisciplinary multidimensional model of digital networks
TeLLNet
– Social network analysis (SNA) is defining measures for social
relations
– Actor network theory (ANT) is connecting human and media agents
– I* framework is defining strategic goals and dependencies
– Theory of media transcriptions is studying cross-media knowledge
social software Media Networks network of artifacts
Wiki, Blog, Podcast, IM, Chat, Microcontent, Blog entry, Message, Burst, Thread,
Email, Newsgroup, Chat … Comment, Conversation, Feedback (Rating)
i*-Dependencies
(Structural, Cross-media)
network of members
Lehrstuhl Informatik 5
Members
(Social Network Analysis: Centrality,
(Informationssysteme)
Prof. Dr. M. Jarke
Efficiency)
Communities of practice
I5-RK-0210-8
9. Simplified Meta Model
Attribute has Actor
TeLLNet
isA
Medium Artifact Process Member Community
isA
stores creates is affected by belongs go
represents consumes performs ranks
Lehrstuhl Informatik 5
Browse Address Transcribe … Localize
(Informationssysteme)
Prof. Dr. M. Jarke
Latour: On Recalling ANT, 1999
I5-RK-0210-9
10. MediaBase
Collection of Social Software
artifacts with parameterized
TeLLNet
PERL scripts
– Mailing lists
– Newsletter
– Web sites
– RSS Feeds
– Blogs
Database support by IBM DB2,
eXist, Oracle, ...
Web Interface based on Firefox
Plugin, Plone/Zope, LAS, ...
Strategies of visualization
– Tree maps
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
– Cross-media graphs
I5-RK-0210-10 Klamma et al.: Pattern-Based Cross Media Social Network Analysis for Technology Enhanced Learning in Europe, EC-TEL 2006
11. Media Base Web 2.0 Commander
Personalization (user annotates resources with tags and has his page)
TeLLNet
Community-awareness (resources and annotation of others are open)
User-friendly interface (Firefox plug-in, easy insertion of resources, tags, tracking of
recent changes)
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0210-11
12. Modeling Dependencies
Using the i* Framework
Coordination Iterant
Coordinator
Broker
TeLLNet
isA
isA
isA
Member Gatekeeper Artifact
isA
URL
Hub
Legend:
Agent
Goal
Communication
Network
Resource
Lehrstuhl Informatik 5 Task
(Informationssysteme)
Prof. Dr. M. Jarke
Eric S. K. Yu, Towards Modeling and Reasoning Support for Early-Phase Requirements Engineering, RE 1997
I5-RK-0210-12
13. Web 2.0 Media Operations in ATLAS
TeLLNet
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0210-13
14. PALADIN: Disturbances in
Cross-media Social Networks
What is a disturbance?
TeLLNet – Sensing an incompatibility
between theories exposed
and theories-in-use
Disturbances are starting
points of learning processes
– Disturbances disturb,
prevent … but they are
creating reflection
Disturbances are hard to
detect or to forecast
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0210-14
15. Pattern Language for PALADIN:
Example Troll
Troll Pattern: This pattern tries to discover the cases when a troll exists in a digital social
network. A troll in the network is considered a disturbance.
TeLLNet
Disturbance:
(EXISTS [medium | medium.affordance = threadArtefact]) &
(EXISTS [troll |(EXISTS [thread | (thread.author = troll) &
(COUNT [message | (message.author = troll) &
(message.posted = thread)]) > minPosts]) &
(~EXISTS[ thread1, message1| (thread1.author1 != troll) &
(message1.author = troll & message1.posted = thread1 ]))])])
Forces: medium; troll; network; member; thread; message; url
Force Relations: neighbour(troll, member); own thread(troll, thread)
Solution: No attention must be paid to the discussions started by the troll.
Rationale: The troll needs attention to continue its activities. If no attention is paid, he/she
Lehrstuhl Informatik 5
will stop participating in the discussions.
Pattern Relations: Associates Spammer pattern.
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0210-15
16. Pattern Discovery Process
Pattern 1. Set pattern Pattern Template
parameters Disturbance
Disturbance
TeLLNet
Variables Pattern
4a. Variables Parameters
Change
Pattern Instance Pattern
Parameters
Disturbance Digital Social Network 2. Instantiate
disturbances
4b. Apply
Variables Pattern Pattern Solution
Parameters
Pattern Template Instance
Forces Force
Relations
Disturbance Instances
Description Solution
Variables Pattern
Parameters
Rationale
Dependencies 3. Evaluate
disturbances
Lehrstuhl Informatik 5
(Informationssysteme) Pattern Relations
Prof. Dr. M. Jarke
I5-RK-0210-16
17. PALADIN Case Study
10 patterns of disturbance over 119 social network instances,
TeLLNet 17359 individuals, 215 345 mails
Pattern Occurrences Remarks
Burst 22 The pattern finds out topics which were very important for certain
period of time. Scalability is necessary.
No Conversationalist 76 The existence implies little communication in the network.
No Questioner 67 The existence implies that the network is not popular.
No Answering Person 61 Occurs in small networks. The effects of the lack of an answering
person must be further checked with content analysis.
Troll 2 Troll occurs very rarely in cultural communities. True negatives exist.
Spammer 86 Spammers can be found often in discussion groups. False positives
exist.
Leader 37 The pattern occurs in the network centered around a member.
No Leader 40 Occurs in big networks where the members are distributed in
different clusters.
Structural Hole 67 Occurs for members having neighbors with only one contact.
Lehrstuhl Informatik 5
(Informationssysteme) Independent 13 Occurs in large networks where disconnected subnetworks exist.
Prof. Dr. M. Jarke
I5-RK-0210-17
Discussions Scalability is necessary.
18. Social Network Analysis of
Open Source Communities
Eclipse components network based on analysis of
TeLLNet source code repository (Software Architecture)
Eclipse components network based on analysis of
mailing list communication (Social Structure)
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0210-18
19. Community Reflection about
Development Process
TeLLNet
Social platform: Eclipse forum eclipsezone
Forum: Eclipse communication framework (ECF)
Measure: degree centrality
Lehrstuhl Informatik 5
(Informationssysteme)
Statistics: 225 nodes, 283 edges
Prof. Dr. M. Jarke
I5-RK-0210-19
20. Conversationalist Pattern
Social platform: Eclipse mailing list
TeLLNet
Forum: Device debugging developer discussion
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0210-20
21. Questioner Pattern
Social platform: Eclipse mailing list
TeLLNet
Forum: Device debugging developer discussion
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0210-21
22. Correlation Estimation between
Architecture and Social Structure
TeLLNet
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0210-22
23. Requirements Reflection Compared
to Community Performance
With increasing number of boundary spanners it becomes
TeLLNet
easier to induce / implement requirements, which can be
evidenced by increased release rates and vice-versa
As most bugs are due to insufficient understanding [NOHI99]
and knowledge creation as well as sharing is supported by
boundary spanners [BDBu07], then increased number of
boundary spanners should be evidenced by decreased bug
rate and vice-versa
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0210-23
24. Identification of End-Users and
Developers in OSS Communities
Community
TeLLNet Clustering
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0210-24
25. Textual Analysis of Postings from
Community Experts
TeLLNet
Postings from experts
of one of the identified
communities
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0210-25
26. Knowledge Network of Computer
Science with AERCS
Knowledge network to understand major research areas and how they
TeLLNet are interconnected
Dataset: combination of DBLP and CiteSeerX
- DBLP: 788,259 author’s names, 1,226,412 publications, 3,490 series.
- CiteSeerX: 7,385,652 publications; 22,735,140 references and over 4 million
author’s names
- Matching: 70% publications in DBLP using canopy clustering technique
Method:
- Citation analysis: bibliographic coupling
- Relatedness measure: cosine similarity
- Series cluster analysis
Visualization:
Lehrstuhl Informatik 5 - yFiles organic layout (forced-directed paradigm)
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0210-26
27. Knowledge Network:
the Visualization
TeLLNet
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(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0210-27
28. Interdisciplinary Series:
Top Betweenness Centrality
TeLLNet
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(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0210-28
29. High Prestige Series:
Top PageRank
TeLLNet
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0210-29
30. TeLLNet: SNA for European
Teachers‘ Life Long Learning
TeLLNet Management Analysis Visualization
How to manage and handle
large scale data on social
networks?
How to analyse social network
data in order to develop
teachers’ competence, e.g. to
facilitate a better project
collaboration?
How to make the network
visualization useful for teachers’
lifelong learning?
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0210-30
31. eTwinning
Network Information Visualization
TeLLNet
• Teacher network 2008 as example
Lehrstuhl Informatik 5
•Cooperation among countries
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0210-31
32. Visual Analytics
• Labels and dates help to identify complete substructures
TeLLNet
• substructures
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(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0210-32
33. Meta Competence Development
for TeLLNet
TeLLNet
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(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0210-33
34. Network Simulation & Evaluation
Network Simulation
Teachers profiles (skills, knowledge, identity)
TeLLNet
Identification of payoffs and strategies
Network formation
Network Evaluation
Nash equilibrium (win-win situation)
Quality labels
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(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0210-34
35. Conclusions
Can CoPs continuously elicit and implement requirements?
– Eclipse case study
TeLLNet
– EU IP ROLE: RE for personal learning environments
Can CoPs learn meaningful social interaction and make use of disturbances?
– Pattern-based Cross-Media Network Analysis
– PALADIN case study
How can CoPs record their complex media learning traces and how they can
deal with them?
– Media Bases
– AERCS case study
Can CoPs maintain or even improve their agency (Learning, Researching,
Working) in the Web 2.0?
– Measurement, Analysis and Simulation
– TellNet case study
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0210-35
36. Outlook
Cloud Data Management for Communities
TeLLNet
– Data uncertainty & security management
– Scaling up analysis in cloud computing
Mobile Social Software
– Merging Virtual Campfire and spatiotemporal
social network analysis
Self-Modeling and Self-Observation of Communities
– End-user developement for social network analysis
– Development of meta-competences
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
– Lesser need for computer science & IT experts
I5-RK-0210-36