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
Policies aimed at bringing universities closer together have always been (and still are) sensitive political issues.
Ascertaining the position and weight of UTC in a COMUE* alongside two major French Universities (Paris 4
(Sorbonne) and University of Paris 6 (Pierre & Marie Curie, or UPMC) has been no simple matter. Among the issues
is the place for technology in a world of traditional ‘pure’ science. Another is the pedagogical contribution of the
arts and humanities that have been an integral factor for UTC, in both teaching and research since the beginning.
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.
Supporting Self-Regulated Learning by Information and Communication Technolo...Milos Kravcik
Applying Self-Regulated Learning (SRL) and related meta-cognitive learning strategies is an efficient way how to increase the learning progress. This is quite challenging to be facilitated with learning technologies as such training requires an individualized approach and a right balance between the learner’s freedom and guidance. The lecture introduces a brief theoretical background from various perspectives. Then technological solutions are proposed and case studies presented. Finally evaluation challenges will be discussed.
CSCL Luento B: Esimerkkejä todellisesta elämästä ja laboratorion perukoiltaJari Laru
Diat esityksestä: "CSCL Luento B: Esimerkkejä todellisesta elämästä ja laboratorion perukoilta". Tämä esitys videoitiin 30.11.2011 Oulun yliopiston koulutus- ja tutkimuspalvelujen etäopetushankkeen oppimateriaaliksi.
Cada noche un pequeño mira las estrellas desde su habitación y sueña con tener una para él. Un día, decide buscar la manera de atraparla ¿lo conseguirá?
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
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
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.
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
Policies aimed at bringing universities closer together have always been (and still are) sensitive political issues.
Ascertaining the position and weight of UTC in a COMUE* alongside two major French Universities (Paris 4
(Sorbonne) and University of Paris 6 (Pierre & Marie Curie, or UPMC) has been no simple matter. Among the issues
is the place for technology in a world of traditional ‘pure’ science. Another is the pedagogical contribution of the
arts and humanities that have been an integral factor for UTC, in both teaching and research since the beginning.
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.
Supporting Self-Regulated Learning by Information and Communication Technolo...Milos Kravcik
Applying Self-Regulated Learning (SRL) and related meta-cognitive learning strategies is an efficient way how to increase the learning progress. This is quite challenging to be facilitated with learning technologies as such training requires an individualized approach and a right balance between the learner’s freedom and guidance. The lecture introduces a brief theoretical background from various perspectives. Then technological solutions are proposed and case studies presented. Finally evaluation challenges will be discussed.
CSCL Luento B: Esimerkkejä todellisesta elämästä ja laboratorion perukoiltaJari Laru
Diat esityksestä: "CSCL Luento B: Esimerkkejä todellisesta elämästä ja laboratorion perukoilta". Tämä esitys videoitiin 30.11.2011 Oulun yliopiston koulutus- ja tutkimuspalvelujen etäopetushankkeen oppimateriaaliksi.
Cada noche un pequeño mira las estrellas desde su habitación y sueña con tener una para él. Un día, decide buscar la manera de atraparla ¿lo conseguirá?
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
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
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
EU Project Layers: Informal Learning at the Workplace with Video ClipsMilos Kravcik
Learning at the workplace is to a large extent informal. Trainees often need consultations with more experienced colleagues who can answer their questions or demonstrate certain practice. This process is usually very time consuming for the more knowledgeable ones, who often need to repeat their explanations for various trainees. There is a high potential to make this process more efficient by means of technology, especially by using the power of multimedia. We present a vision and work in progress for enhancing informal learning at the workplace by using video annotation and video adaptation techniques. This is part of the research and development in the Learning Layers project.
Identification of Learning Goals in Forum-based CommunitiesMilos Kravcik
When Internet users search for information, surf on websites or discuss with others, their actions are driven by certain goals. Extraction of users' goals can enable higher effectiveness and accuracy of web services. Supporting users in based on their goals can be highly beneficial, especially supporting of learners in the preparation for an exam as a learning process, Different phases of learning are identified when users learn collaboratively. We scrutinize how goals are constructed and achieved within a community, examining not only social activities based on patterns of behavior, but also emotions and intents users express in their posts. As a result we elicit users’ goals. We achieved good accuracy in defining emotions of users and recognizing their intents and social patterns in our case. Here we discuss how the obtained results contribute to mining of learning community goals.
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.
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.
NetLearn: Social Network Analysis and Visualizations for LearningMohamed Amine Chatti
The most valuable and innovative knowledge is hard to find,
and it lies within distributed communities and networks. Locating the
right community or person who can provide us with exactly the knowledge
that we need and who can help us solve exactly the problems that
we come upon, can be an ecient way to learn forward. In this paper, we
present the details of NetLearn; a service that acts as a knowledge lter
for learning. The primary aim of NetLearn is to leverage social network
analysis and visualization techniques to help learners mine communities
and locate experts that can populate their personal learning environments.
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
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
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
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
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
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
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
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
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/
In his public lecture, Christian Timmerer provides insights into the fascinating history of video streaming, starting from its humble beginnings before YouTube to the groundbreaking technologies that now dominate platforms like Netflix and ORF ON. Timmerer also presents provocative contributions of his own that have significantly influenced the industry. He concludes by looking at future challenges and invites the audience to join in a discussion.
How to Get CNIC Information System with Paksim Ga.pptxdanishmna97
Pakdata Cf is a groundbreaking system designed to streamline and facilitate access to CNIC information. This innovative platform leverages advanced technology to provide users with efficient and secure access to their CNIC details.
Pushing the limits of ePRTC: 100ns holdover for 100 daysAdtran
At WSTS 2024, Alon Stern explored the topic of parametric holdover and explained how recent research findings can be implemented in real-world PNT networks to achieve 100 nanoseconds of accuracy for up to 100 days.
Essentials of Automations: The Art of Triggers and Actions in FMESafe Software
In this second installment of our Essentials of Automations webinar series, we’ll explore the landscape of triggers and actions, guiding you through the nuances of authoring and adapting workspaces for seamless automations. Gain an understanding of the full spectrum of triggers and actions available in FME, empowering you to enhance your workspaces for efficient automation.
We’ll kick things off by showcasing the most commonly used event-based triggers, introducing you to various automation workflows like manual triggers, schedules, directory watchers, and more. Plus, see how these elements play out in real scenarios.
Whether you’re tweaking your current setup or building from the ground up, this session will arm you with the tools and insights needed to transform your FME usage into a powerhouse of productivity. Join us to discover effective strategies that simplify complex processes, enhancing your productivity and transforming your data management practices with FME. Let’s turn complexity into clarity and make your workspaces work wonders!
A tale of scale & speed: How the US Navy is enabling software delivery from l...sonjaschweigert1
Rapid and secure feature delivery is a goal across every application team and every branch of the DoD. The Navy’s DevSecOps platform, Party Barge, has achieved:
- Reduction in onboarding time from 5 weeks to 1 day
- Improved developer experience and productivity through actionable findings and reduction of false positives
- Maintenance of superior security standards and inherent policy enforcement with Authorization to Operate (ATO)
Development teams can ship efficiently and ensure applications are cyber ready for Navy Authorizing Officials (AOs). In this webinar, Sigma Defense and Anchore will give attendees a look behind the scenes and demo secure pipeline automation and security artifacts that speed up application ATO and time to production.
We will cover:
- How to remove silos in DevSecOps
- How to build efficient development pipeline roles and component templates
- How to deliver security artifacts that matter for ATO’s (SBOMs, vulnerability reports, and policy evidence)
- How to streamline operations with automated policy checks on container images
UiPath Test Automation using UiPath Test Suite series, part 5DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 5. In this session, we will cover CI/CD with devops.
Topics covered:
CI/CD with in UiPath
End-to-end overview of CI/CD pipeline with Azure devops
Speaker:
Lyndsey Byblow, Test Suite Sales Engineer @ UiPath, Inc.
Communications Mining Series - Zero to Hero - Session 1DianaGray10
This session provides introduction to UiPath Communication Mining, importance and platform overview. You will acquire a good understand of the phases in Communication Mining as we go over the platform with you. Topics covered:
• Communication Mining Overview
• Why is it important?
• How can it help today’s business and the benefits
• Phases in Communication Mining
• Demo on Platform overview
• Q/A
In the rapidly evolving landscape of technologies, XML continues to play a vital role in structuring, storing, and transporting data across diverse systems. The recent advancements in artificial intelligence (AI) present new methodologies for enhancing XML development workflows, introducing efficiency, automation, and intelligent capabilities. This presentation will outline the scope and perspective of utilizing AI in XML development. The potential benefits and the possible pitfalls will be highlighted, providing a balanced view of the subject.
We will explore the capabilities of AI in understanding XML markup languages and autonomously creating structured XML content. Additionally, we will examine the capacity of AI to enrich plain text with appropriate XML markup. Practical examples and methodological guidelines will be provided to elucidate how AI can be effectively prompted to interpret and generate accurate XML markup.
Further emphasis will be placed on the role of AI in developing XSLT, or schemas such as XSD and Schematron. We will address the techniques and strategies adopted to create prompts for generating code, explaining code, or refactoring the code, and the results achieved.
The discussion will extend to how AI can be used to transform XML content. In particular, the focus will be on the use of AI XPath extension functions in XSLT, Schematron, Schematron Quick Fixes, or for XML content refactoring.
The presentation aims to deliver a comprehensive overview of AI usage in XML development, providing attendees with the necessary knowledge to make informed decisions. Whether you’re at the early stages of adopting AI or considering integrating it in advanced XML development, this presentation will cover all levels of expertise.
By highlighting the potential advantages and challenges of integrating AI with XML development tools and languages, the presentation seeks to inspire thoughtful conversation around the future of XML development. We’ll not only delve into the technical aspects of AI-powered XML development but also discuss practical implications and possible future directions.
Climate Impact of Software Testing at Nordic Testing DaysKari Kakkonen
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
Maruthi Prithivirajan, Head of ASEAN & IN Solution Architecture, Neo4j
Get an inside look at the latest Neo4j innovations that enable relationship-driven intelligence at scale. Learn more about the newest cloud integrations and product enhancements that make Neo4j an essential choice for developers building apps with interconnected data and generative AI.
Removing Uninteresting Bytes in Software FuzzingAftab Hussain
Imagine a world where software fuzzing, the process of mutating bytes in test seeds to uncover hidden and erroneous program behaviors, becomes faster and more effective. A lot depends on the initial seeds, which can significantly dictate the trajectory of a fuzzing campaign, particularly in terms of how long it takes to uncover interesting behaviour in your code. We introduce DIAR, a technique designed to speedup fuzzing campaigns by pinpointing and eliminating those uninteresting bytes in the seeds. Picture this: instead of wasting valuable resources on meaningless mutations in large, bloated seeds, DIAR removes the unnecessary bytes, streamlining the entire process.
In this work, we equipped AFL, a popular fuzzer, with DIAR and examined two critical Linux libraries -- Libxml's xmllint, a tool for parsing xml documents, and Binutil's readelf, an essential debugging and security analysis command-line tool used to display detailed information about ELF (Executable and Linkable Format). Our preliminary results show that AFL+DIAR does not only discover new paths more quickly but also achieves higher coverage overall. This work thus showcases how starting with lean and optimized seeds can lead to faster, more comprehensive fuzzing campaigns -- and DIAR helps you find such seeds.
- These are slides of the talk given at IEEE International Conference on Software Testing Verification and Validation Workshop, ICSTW 2022.
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
GraphSummit Singapore | The Art of the Possible with Graph - Q2 2024Neo4j
Neha Bajwa, Vice President of Product Marketing, Neo4j
Join us as we explore breakthrough innovations enabled by interconnected data and AI. Discover firsthand how organizations use relationships in data to uncover contextual insights and solve our most pressing challenges – from optimizing supply chains, detecting fraud, and improving customer experiences to accelerating drug discoveries.
GraphSummit Singapore | The Future of Agility: Supercharging Digital Transfor...Neo4j
Leonard Jayamohan, Partner & Generative AI Lead, Deloitte
This keynote will reveal how Deloitte leverages Neo4j’s graph power for groundbreaking digital twin solutions, achieving a staggering 100x performance boost. Discover the essential role knowledge graphs play in successful generative AI implementations. Plus, get an exclusive look at an innovative Neo4j + Generative AI solution Deloitte is developing in-house.
Secstrike : Reverse Engineering & Pwnable tools for CTF.pptx
Virtual Campfire –A Hero’s Journey into Multimedia Storytelling
1. TeLLNet
Virtual Campfire –
A Hero’s Journey
into Multimedia Storytelling
Ralf Klamma
Kolloquium Universität Klagenfurt,
29. Januar, 2010
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke With thanks to Joseph Campbell: The Hero with a Thousand Faces. Novato, California: New World Library, 2008
I5-RK-0909-1
2. Agenda
WALL-E: A Hero's Journey.
TeLLNet
Conclusions and Outlook
UMIC at RWTH Aachen
Virtual Campfire
Storytelling
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke WALL·E – Der Letzte räumt die Erde auf
I5-RK-0909-2
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-0909-3
4. Ultra high-speed Mobile Information
and Communication (UMIC)
Excellence Cluster
TeLLNet
funded by DFG (2007-2011)
More than 15 institutes from
Electrical Engineering and
Computer Science
New professorships and
research groups
Own new building
http://www.umic.rwth-aachen.de
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0909-4
5. 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-0909-5
6. Storytelling
TeLLNet Ancient concept to
stimulate
knowledge sharing
and learning
How can storytelling
• Different roles
be utilized for
knowledge sharing • Different contexts
in mobile
professional
communities?
• Different
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
semantics
I5-RK-0909-6
7. Why Virtual Campfire?
Media is witness of Knowledge may get lost, if no
community / individual is telling
TeLLNet
cultural heritage stories any more
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 to
Reconstruction? do it better (Wenger, 1998)
How?
– Heterogeneous communities
– Media becomes only research
source when the physical object as
Lehrstuhl Informatik 5
(Informationssysteme) primary source gets lost
Prof. Dr. M. Jarke
I5-RK-0909-7
8. Non-linear
Multimedia Storytelling
Creation of non-linear multimedia stories
TeLLNet Definition of story paths compliant to Movement
Oriented Design
(Victoria University)
Linkage of story
elements with
multimedia
contents
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0909-8
9. UMIC Subproject Virtual Campfire
TeLLNet
Context-aware Semantic Multimedia
Services for Mobile Communities
2.
1.
A bridge
Context
between 5.
awareness of
multimedia 3. 4. Social
mobile
semantics Monitoring of Mobile network
communities
and mobile multimedia analysis of
via location
multimedia communities webservices multimedia
based
context via interaction
multimedia
metadata
services
Lehrstuhl Informatik 5
management
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0909-9
10. TeLLNet
Context awareness of
mobile communities
via location based multimedia
services
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0909-10
11. Car Race Scenario
Context-Aware Multimedia Sharing
Communities produce and consume media at different places, times, etc. via LBS
Semantic mapping of context data on semantic base types needed
TeLLNet – GPS data -> Tribunes, Curves, etc. (Places)
– Time data -> Lap, Start, Finish, Box stop, etc. (Events)
– Racing car data –> Ferrari, McLaren-Mercedes, BMW-Sauber Community, etc. (Agents)
Multimedia queries are dependent on context!
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke IJCSSE, May 2010
I5-RK-0909-11
12. Multimedia Semantics and
Multimedia Context
Context in computer science: Multimedia Multimedia
situational or environmental semantics context
TeLLNet
information [Abowd et al., 1999 ]
Computing
Context awareness Meaning
context
– For multimedia input
– For multimedia search User
Richness
context
– For multimedia retrieval
Information richness Physical
[Daft & Lengel, 1986] Precision
context
Problem: multimedia
semantics and multimedia Machine Time/
readability location
context are not well combined
for mobile multimedia Community
Lehrstuhl Informatik 5
(Informationssysteme) communities Context
Prof. Dr. M. Jarke
I5-RK-0909-12
13. The Multimedia Community
Processing Model
SPARQL
TeLLNet
Multimedia
resources
MPEG-7
Ontology A
(Commsonomy)
Ontology B Context
Dublin Core
OWL
More precise
RDFS Domain multimedia
TV-Anytime Information query results
RDF
EXIF
Community of
...
Practice (CoP)
Lehrstuhl Informatik 5
(Informationssysteme) Yiwei Cao, Ralf Klamma, Dejan Kovachev: Multimedia Processing on Multimedia Semantics and Multimedia Context ,
Prof. Dr. M. Jarke in Proc. SeMuDaTe'09,, Graz, Austria, December, 2009
I5-RK-0909-13
14. TeLLNet
A bridge between multimedia
semantics and multimedia context
via metadata management
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0909-14
15. Cross-Media Annotation Services
Collaborative indexing based on:
TeLLNet
– Free text annotations (a Agent
lá Flickr) Event
– Semantic MPEG-7 Concept
Basetypes annotations Object
– Image annotations Place
– Community aware Time
annotations: State
folksonomies
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0909-15
16. Concepts of CA3M
Community-Aware Static Multimedia
TeLLNet Adaptation based on Clustering
Algorithms [KSCa06] Uncertainty Management
Context-Aware Adaptation based on Context Reasoner
Semantic Einrichment of Multimedia [CKHJ08, MDM‘08]
Information [CKHJ08]
MPEG-7ToRDF
Context-Aware
Adaptation
How to support MPEG-7/MPEG-21 System
Media Adaptation
Semantic Enrichment for further System
(OWL)
Semantic Processing? (MPEG-7/21) [CKHJ08, MDM‘08]
How to systematically handle [KSCa06, ECTEL‘06]
Uncertain Information in further
Lehrstuhl Informatik 5
(Informationssysteme)
Semantic Processing?
Prof. Dr. M. Jarke
I5-RK-0909-16
17. Context Reasoner
Reasoning on context information
Uncertainty Management
Context Reasoner [CKHJ08]
TeLLNet
SPARQL
MPEG-7ToRDF Context-
– RDF Query Language Aware
Adaptation
– Ontology Reasoning Language Media
Adaptation
System
(OWL)
System
– Implementation using the Jena Framework (MPEG-7/21) [CKHJ08]
[KSCa06]
PREFIX mpeg7: <http://manet.informatik.rwth-aachen.de/~khodaei/mpeg7-v2.owl#>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
SELECT ?agent ?place
WHERE {
?agent mpeg7:name “FirstName LastName"
?agent mpeg7:hasGeographicPosition ?loc1
?loc1 mpeg7:longitude ?lon1
?loc1 mpeg7:latitude ?lat1
?place mpeg7:hasGeographicPosition ?loc2
?place mpeg7:definition “curve-n”
?loc2 mpeg7:longitude ?lon2
?loc2 mpeg7:latitude ?lat2
Lehrstuhl Informatik 5 FILTER Distance(?loc1, ?loc2) <= distance
(Informationssysteme)
Prof. Dr. M. Jarke
}
I5-RK-0909-17
18. Uncertainty Management
Clustering Algorithms based on User Preferences
– Calculation Euclidean Distance of Communities Uncertainty Management
TeLLNet
– Clusters are recalculated when new users come Context Reasoner [CKHJ08]
Rating/Ranking as User Query Feedback MPEG-7ToRDF Context-
Aware
Adaptation
Media System
Adaptation (OWL)
System
(MPEG-7/21) [CKHJ08]
[KSCa06]
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0909-18
19. Virtual Campfire Extentions
An interactive
TeLLNet semantic video
annotation platform
Metadata standard
based video tagging
on various levels
MPEG-7 based
GIS enabled
Granulation from
frames to videos
(Semi-) professional
communities
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0909-19
20. TeLLNet
Monitoring of mobile communities
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0909-20
21. How Virtual Campfire Works –
Lightweight Application Server LAS
(Mobile) Context-Aware Services
TeLLNet Interfaces Data Sources
Storytelling MPEG-7 Map Context SNA
Media Service Services Services Services Services
Creation
Databases
Connectors: HTTP, SOAP, XMPP
Media
Tagging
Media Multimedia Processor
Search Metadata
Multimedia Multimedia Multimedia
Semantic Adaptation Annotation Extractor
Browsing
Multimedia
Multimedia
Multimedia Multimedia Multimedia
Repository
Mashups Repository
Player Input Repository
Automatic
Discovery &
Configuration
WWW
Session User Object Data
Manager Manager Manager Access
Community Engine
Invoking services Data flows
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0909-21
22. Mobile Multimedia Community
Service Testbed
TeLLNet
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
Dominik Renzel, Ralf Klamma :Semantic Monitoring and Analyzing Context-aware Collaborative Multimedia Services
in Proceedings of the 2009 IEEE International Conference on Semantic Computing, 14-16 September 2009 / Berkeley, CA, USA
I5-RK-0909-22
23. youTell: A Web 2.0 Service for
Collaborative Storytelling
TeLLNet
Lehrstuhl Informatik 5
(Informationssysteme) Ralf Klamma, Yiwei Cao, Matthias Jarke: Storytelling on the Web 2.0 as a New Means of Creating Arts
Prof. Dr. M. Jarke in Borko Furht (Ed.): Handbook of Multimedia for Digital Entertainment and Arts, Springer, pp. 623-650, 2009
I5-RK-0909-23
24. Story-tellling Expert Finding
Knowledge Value of Community sorted by keywords
TeLLNet
# Recommendations
Amateur
Expert values Expert Keywords
Lehrstuhl Informatik 5
Measuring Development of Knowledge Value over Time
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0909-24
25. TeLLNet
Mobile multimedia web services
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0909-25
26. Mobile Interfaces to
Multimedia Web Services
TeLLNet
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0909-26
27. Alternative System Architecture
LAS access with Mobile Web
TeLLNet Services
LAS access via
Enterprise Service
Bus (ESB)
Lehrstuhl Informatik 5
(Informationssysteme) Yiwei Cao, Matthias Jarke, Ralf Klamma, O. Mendoza, Satish Srirama: Mobile Access to MPEG-7 Based Multimedia Services
Prof. Dr. M. Jarke in Proc. of the Tenth International Conference on Mobile Data Management, May 18-20, 2009, Taipei, Taiwan, pp. 102-111
I5-RK-0909-27
28. Evaluation Results
Multimedia files are retrieved on search request on mobile devices
TeLLNet
MPEG-7 based multimedia services are monitored by MobSOS
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0909-28
29. Lessons learnt for
Mobile Multimedia Webservices
Design and implementation of alternative architecture
Factors Mobile Web Services ESB as middleware
TeLLNet
Performance Response time is proportional to multi- Response time increases
media file size and increases exponentially linearly at a low rate
Scalability Not scalable, only one LAS server is Scalable, distributed access
connected to LAS services
Development Details must be known by clients WSDL is used to publish and
cost find Web services on the ESB
Reliability Long response time by Web Services Short response time
overload
Interoperability and scalability are crucial for mobile multimedia
services across various mobile platforms
Load balancing can reduce wireless data communication cost
and improve mobile multimedia service quality
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0909-29
Quality of services can be traced by service monitoring
30. TeLLNet
Social network analysis of
multimedia interaction
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0909-30
31. Reflective Information Systems as
an Architectural Foundation
Operational Support Community Reflective Support
Self-Modeling
TeLLNet Can we support CoPs with the Can CoPs continuously elicitate 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 their
knowledge management and networking complex media learning traces and
strategies in Social Software? how they can 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-0909-31
Communities of Practice Media Networks
32. 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-0909-32
33. 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
Plone/Zope, LAS, ...
Strategies of visualization
– Tree maps
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
– Cross-media graphs
I5-RK-0909-33 Klamma et al.: Pattern-Based Cross Media Social Network Analysis for Technology Enhanced Learning in Europe, EC-TEL 2006
34. Evolution of a
Database Research Community
TeLLNet
VLDB 1990 VLDB 1995
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke VLDB 2000 VLDB 2006
I5-RK-0909-34
35. Conclusions & Outlook
Mobile Multimedia Communities
TeLLNet
Community Use and
Facilitation Creation in
International Community
Mobile Server Community Non-linear stories
Standard-conform
MPEG-7 & MPEG-21
Web Services
Multimedia Adaptation
Further protocols
Context Reasoning
P2P data management GPS-enabled Context through
Media production storytelling
Media Structure
Organisation Media
Settings
Mobile Media
Management
Lehrstuhl Informatik 5
(Informationssysteme)
Prof. Dr. M. Jarke
I5-RK-0909-35