The document discusses how linked open data and semantic web technologies can be applied to educational data and resources on the web. It provides examples of projects that aim to expose, interlink, and enrich educational datasets using these technologies. The goal is to improve data sharing and interoperability, facilitate reuse of open educational resources, and leverage linked data as a knowledge base to support learning and education.
Big Linked Data - Creating Training CurriculaEUCLID project
This presentation includes an overview of the basic rules to follow when developing training and education curricula for Linked Data and Big Linked Data
This slideset introduces the LAK Dataset and Challenge, held at the Learning Analytics & Knowledge (LAK) conference in Leuven, Belgium, April 2013. Further information about the dataset and submissions is available at http://ceur-ws.org/Vol-974/ as well as http://www.solaresearch.org/events/lak/lak-data-challenge/.
Linked Data for Federation of OER Data & RepositoriesStefan Dietze
An overview over different alternatives and opportunities of using Linked Data principles and datasets for federated access to distributed OER repositories. The talk was held at the ARIADNE/GLOBE convening (http://ariadne-eu.org/content/open-federations-2013-open-knowledge-sharing-education) at LAK 2013, Leuven, Belgium on 8 April 2013
Usage of Linked Data: Introduction and Application ScenariosEUCLID project
This presentation introduces the main principles of Linked Data, the underlying technologies and background standards. It provides basic knowledge for how data can be published over the Web, how it can be queried, and what are the possible use cases and benefits. As an example, we use the development of a music portal (based on the MusicBrainz dataset), which facilitates access to a wide range of information and multimedia resources relating to music.
Big Linked Data - Creating Training CurriculaEUCLID project
This presentation includes an overview of the basic rules to follow when developing training and education curricula for Linked Data and Big Linked Data
This slideset introduces the LAK Dataset and Challenge, held at the Learning Analytics & Knowledge (LAK) conference in Leuven, Belgium, April 2013. Further information about the dataset and submissions is available at http://ceur-ws.org/Vol-974/ as well as http://www.solaresearch.org/events/lak/lak-data-challenge/.
Linked Data for Federation of OER Data & RepositoriesStefan Dietze
An overview over different alternatives and opportunities of using Linked Data principles and datasets for federated access to distributed OER repositories. The talk was held at the ARIADNE/GLOBE convening (http://ariadne-eu.org/content/open-federations-2013-open-knowledge-sharing-education) at LAK 2013, Leuven, Belgium on 8 April 2013
Usage of Linked Data: Introduction and Application ScenariosEUCLID project
This presentation introduces the main principles of Linked Data, the underlying technologies and background standards. It provides basic knowledge for how data can be published over the Web, how it can be queried, and what are the possible use cases and benefits. As an example, we use the development of a music portal (based on the MusicBrainz dataset), which facilitates access to a wide range of information and multimedia resources relating to music.
Within the course, we will present Linked Data as a set of best practices for publishing and connecting structured data on the Web. These best practices have been adopted by an increasing number of data providers over the past years, leading to the creation of a global data space that contains many billions of assertions – the Web of Linked Data.
Introduction to the Data Web, DBpedia and the Life-cycle of Linked DataSören Auer
Over the past 4 years, the Semantic Web activity has gained momentum with the widespread publishing of structured data as RDF. The Linked Data paradigm has therefore evolved from a practical research idea into
a very promising candidate for addressing one of the biggest challenges
of computer science: the exploitation of the Web as a platform for data
and information integration. To translate this initial success into a
world-scale reality, a number of research challenges need to be
addressed: the performance gap between relational and RDF data
management has to be closed, coherence and quality of data published on
the Web have to be improved, provenance and trust on the Linked Data Web
must be established and generally the entrance barrier for data
publishers and users has to be lowered. This tutorial will discuss
approaches for tackling these challenges. As an example of a successful
Linked Data project we will present DBpedia, which leverages Wikipedia
by extracting structured information and by making this information
freely accessible on the Web. The tutorial will also outline some recent advances in DBpedia, such as the mappings Wiki, DBpedia Live as well as
the recently launched DBpedia benchmark.
morning session talk at the second Keystone Training School "Keyword search in Big Linked Data" held in Santiago de Compostela.
https://eventos.citius.usc.es/keystone.school/
Analysing & Improving Learning Resources Markup on the WebStefan Dietze
Talk at WWW2017 on LRMI adoption, quality and usage. Full paper here: http://papers.www2017.com.au.s3-website-ap-southeast-2.amazonaws.com/companion/p283.pdf.
Exploration, visualization and querying of linked open data sourcesLaura Po
afternoon hands-on session talk at the second Keystone Training School "Keyword search in Big Linked Data" held in Santiago de Compostela.
https://eventos.citius.usc.es/keystone.school/
Towards digitizing scholarly communicationSören Auer
Slides of the VIVO 2016 Conference keynote: Despite the availability of ubiquitous connectivity and information technology, scholarly communication has not changed much in the last hundred years: research findings are still encoded in and decoded from linear, static articles and the possibilities of digitization are rarely used. In this talk, we will discuss strategies for digitizing scholarly communication. This comprises in particular: the use of machine-readable, dynamic content; the description and interlinking of research artifacts using Linked Data; the crowd-sourcing of multilingual
educational and learning content. We discuss the relation of these developments to research information systems and how they could become part of an open ecosystem for scholarly communication.
Build Narratives, Connect Artifacts: Linked Open Data for Cultural HeritageOntotext
Many issues are faced by scholars, book researchers, museum directors who try to find the underlying connection between resources. Scholars in particular continuously emphasizes the role of digital humanities and the value of linked data in cultural heritage information systems.
Talk delivered at YOW! Developer Conferences in Melbourne, Brisbane and Sydney Australia on 1-9 December 2016.
Abstract: Governments collect a lot of data. Data on air quality, toxic chemicals, laws and regulations, public health, and the census are intended to be widely distributed. Some data is not for public consumption. This talk focuses on open government data — the information that is meant to be made available for benefit of policy makers, researchers, scientists, industry, community organisers, journalists and members of civil society.
We’ll cover the evolution of Linked Data, which is now being used by Google, Apple, IBM Watson, federal governments worldwide, non-profits including CSIRO and OpenPHACTS, and thousands of others worldwide.
Next we’ll delve into the evolution of the U.S. Environmental Protection Agency’s Open Data service that we implemented using Linked Data and an Open Source Data Platform. Highlights include how we connected to hundreds of billions of open data facts in the world’s largest, open chemical molecules database PubChem and DBpedia.
WHO SHOULD ATTEND
Data scientists, software engineers, data analysts, DBAs, technical leaders and anyone interested in utilising linked data and open government data.
Linked Data for the Masses: The approach and the SoftwareIMC Technologies
Title: Linked Data for the Masses: The approach and the Software
@ EELLAK (GFOSS) Conference 2010
Athens, Greece
15/05/2010
Creator: George Anadiotis (R&D Director)
Within the course, we will present Linked Data as a set of best practices for publishing and connecting structured data on the Web. These best practices have been adopted by an increasing number of data providers over the past years, leading to the creation of a global data space that contains many billions of assertions – the Web of Linked Data.
Introduction to the Data Web, DBpedia and the Life-cycle of Linked DataSören Auer
Over the past 4 years, the Semantic Web activity has gained momentum with the widespread publishing of structured data as RDF. The Linked Data paradigm has therefore evolved from a practical research idea into
a very promising candidate for addressing one of the biggest challenges
of computer science: the exploitation of the Web as a platform for data
and information integration. To translate this initial success into a
world-scale reality, a number of research challenges need to be
addressed: the performance gap between relational and RDF data
management has to be closed, coherence and quality of data published on
the Web have to be improved, provenance and trust on the Linked Data Web
must be established and generally the entrance barrier for data
publishers and users has to be lowered. This tutorial will discuss
approaches for tackling these challenges. As an example of a successful
Linked Data project we will present DBpedia, which leverages Wikipedia
by extracting structured information and by making this information
freely accessible on the Web. The tutorial will also outline some recent advances in DBpedia, such as the mappings Wiki, DBpedia Live as well as
the recently launched DBpedia benchmark.
morning session talk at the second Keystone Training School "Keyword search in Big Linked Data" held in Santiago de Compostela.
https://eventos.citius.usc.es/keystone.school/
Analysing & Improving Learning Resources Markup on the WebStefan Dietze
Talk at WWW2017 on LRMI adoption, quality and usage. Full paper here: http://papers.www2017.com.au.s3-website-ap-southeast-2.amazonaws.com/companion/p283.pdf.
Exploration, visualization and querying of linked open data sourcesLaura Po
afternoon hands-on session talk at the second Keystone Training School "Keyword search in Big Linked Data" held in Santiago de Compostela.
https://eventos.citius.usc.es/keystone.school/
Towards digitizing scholarly communicationSören Auer
Slides of the VIVO 2016 Conference keynote: Despite the availability of ubiquitous connectivity and information technology, scholarly communication has not changed much in the last hundred years: research findings are still encoded in and decoded from linear, static articles and the possibilities of digitization are rarely used. In this talk, we will discuss strategies for digitizing scholarly communication. This comprises in particular: the use of machine-readable, dynamic content; the description and interlinking of research artifacts using Linked Data; the crowd-sourcing of multilingual
educational and learning content. We discuss the relation of these developments to research information systems and how they could become part of an open ecosystem for scholarly communication.
Build Narratives, Connect Artifacts: Linked Open Data for Cultural HeritageOntotext
Many issues are faced by scholars, book researchers, museum directors who try to find the underlying connection between resources. Scholars in particular continuously emphasizes the role of digital humanities and the value of linked data in cultural heritage information systems.
Talk delivered at YOW! Developer Conferences in Melbourne, Brisbane and Sydney Australia on 1-9 December 2016.
Abstract: Governments collect a lot of data. Data on air quality, toxic chemicals, laws and regulations, public health, and the census are intended to be widely distributed. Some data is not for public consumption. This talk focuses on open government data — the information that is meant to be made available for benefit of policy makers, researchers, scientists, industry, community organisers, journalists and members of civil society.
We’ll cover the evolution of Linked Data, which is now being used by Google, Apple, IBM Watson, federal governments worldwide, non-profits including CSIRO and OpenPHACTS, and thousands of others worldwide.
Next we’ll delve into the evolution of the U.S. Environmental Protection Agency’s Open Data service that we implemented using Linked Data and an Open Source Data Platform. Highlights include how we connected to hundreds of billions of open data facts in the world’s largest, open chemical molecules database PubChem and DBpedia.
WHO SHOULD ATTEND
Data scientists, software engineers, data analysts, DBAs, technical leaders and anyone interested in utilising linked data and open government data.
Linked Data for the Masses: The approach and the SoftwareIMC Technologies
Title: Linked Data for the Masses: The approach and the Software
@ EELLAK (GFOSS) Conference 2010
Athens, Greece
15/05/2010
Creator: George Anadiotis (R&D Director)
Open Education Challenge 2014: exploiting Linked Data in Educational Applicat...Stefan Dietze
Presentation from mentoring event of Open Education Europa Challenge (http://www.openeducationchallenge.eu/) about using Linked Data in educational applications.
Semantic Linking & Retrieval for Digital LibrariesStefan Dietze
An overview of recent works on entitiy linking and retrieval in large corpora, specifically bibliographic data. The works address both traditional Linked Data and knowledge graphs as well as data extracted from Web markup, such as the Web Data Commons.
Mining and Understanding Activities and Resources on the WebStefan Dietze
Research Seminar at KMRC Tübingen, Germany, on mining and understanding of Web acivities and resources through knowledge discovery and machine learning approaches.
Exposing Humanities Data for Reuse and Linking - RED, linked data and the sem...Mathieu d'Aquin
Presented at the workshop of the "Reading Experience Database" (RED) project - London - 25/02/2011.
Discussion on how linked data can benefit research in humanities, using RED and data.open.ac.uk as early examples.
Charleston 2012 - The Future of Serials in a Linked Data WorldProQuest
The educational objective of this session is to review today’s MARC-based environment in which the serial record predominates, and compare that with what might be possible in a future world of linked data. The session will inspire conversation and reflection on a number of questions. What will a world of statement-based rather than record-based metadata look like? What will a new environment mean for library systems, workflows, and information dissemination?
Similar to WWW2014 Tutorial: Online Learning & Linked Data - Lessons Learned (20)
Understanding Scientific and Societal Adoption and Impact of Science Through ...Stefan Dietze
Keynote on analysing scholarly discourse at Second International Workshop on Semantic Technologies and Deep Learning Models for Scientific, Technical and Legal Data SemTech4STLD, held on 26 May at ESWC2024
AI in between online and offline discourse - and what has ChatGPT to do with ...Stefan Dietze
Talk at Bonn University on general AI and NLP challenges in the context of online discourse analysis. Specific focus on challenges arising from the widespread adoption of neural large language models.
An interdisciplinary journey with the SAL spaceship – results and challenges ...Stefan Dietze
Keynote at HELMeTO2022 conference, Palermo, Italy on recent research in Search As Learning (SAL), at the intersection of machine learning and cognitive psychology.
From Web Data to Knowledge: on the Complementarity of Human and Artificial In...Stefan Dietze
Inaugural lecture at Heinrich-Heine-University Düsseldorf on 28 May 2019.
Abstract:
When searching the Web for information, human knowledge and artificial intelligence are in constant interplay. On the one hand, human online interactions such as click streams, crowd-sourced knowledge graphs, semi-structured web markup or distributional semantic models built from billions of Web documents are informing machine learning and information retrieval models, for instance, as part of the Google search engine. On the other hand, the very same search engines help users in finding relevant documents, facts, or data for particular information needs, thereby helping users to gain knowledge. This talk will give an overview of recent work in both of the aforementioned areas. This includes 1) research on mining structured knowledge graphs of factual knowledge, claims and opinions from heterogeneous Web documents as well as 2) recent work in the field of interactive information retrieval, where supervised models are trained to predict the knowledge (gain) of users during Web search sessions in order to personalise rankings. Both streams of research are converging as part of online platforms and applications to facilitate access to data(sets), information and knowledge.
Analysing User Knowledge, Competence and Learning during Online ActivitiesStefan Dietze
Research talk given at Italian National Research Council (CNR), Institute for Educational Technologies (ITD) on learning analytics in everyday online activities.
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
The Metaverse and AI: how can decision-makers harness the Metaverse for their...Jen Stirrup
The Metaverse is popularized in science fiction, and now it is becoming closer to being a part of our daily lives through the use of social media and shopping companies. How can businesses survive in a world where Artificial Intelligence is becoming the present as well as the future of technology, and how does the Metaverse fit into business strategy when futurist ideas are developing into reality at accelerated rates? How do we do this when our data isn't up to scratch? How can we move towards success with our data so we are set up for the Metaverse when it arrives?
How can you help your company evolve, adapt, and succeed using Artificial Intelligence and the Metaverse to stay ahead of the competition? What are the potential issues, complications, and benefits that these technologies could bring to us and our organizations? In this session, Jen Stirrup will explain how to start thinking about these technologies as an organisation.
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.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
zkStudyClub - Reef: Fast Succinct Non-Interactive Zero-Knowledge Regex ProofsAlex Pruden
This paper presents Reef, a system for generating publicly verifiable succinct non-interactive zero-knowledge proofs that a committed document matches or does not match a regular expression. We describe applications such as proving the strength of passwords, the provenance of email despite redactions, the validity of oblivious DNS queries, and the existence of mutations in DNA. Reef supports the Perl Compatible Regular Expression syntax, including wildcards, alternation, ranges, capture groups, Kleene star, negations, and lookarounds. Reef introduces a new type of automata, Skipping Alternating Finite Automata (SAFA), that skips irrelevant parts of a document when producing proofs without undermining soundness, and instantiates SAFA with a lookup argument. Our experimental evaluation confirms that Reef can generate proofs for documents with 32M characters; the proofs are small and cheap to verify (under a second).
Paper: https://eprint.iacr.org/2023/1886
Why You Should Replace Windows 11 with Nitrux Linux 3.5.0 for enhanced perfor...SOFTTECHHUB
The choice of an operating system plays a pivotal role in shaping our computing experience. For decades, Microsoft's Windows has dominated the market, offering a familiar and widely adopted platform for personal and professional use. However, as technological advancements continue to push the boundaries of innovation, alternative operating systems have emerged, challenging the status quo and offering users a fresh perspective on computing.
One such alternative that has garnered significant attention and acclaim is Nitrux Linux 3.5.0, a sleek, powerful, and user-friendly Linux distribution that promises to redefine the way we interact with our devices. With its focus on performance, security, and customization, Nitrux Linux presents a compelling case for those seeking to break free from the constraints of proprietary software and embrace the freedom and flexibility of open-source computing.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
Generative AI Deep Dive: Advancing from Proof of Concept to ProductionAggregage
Join Maher Hanafi, VP of Engineering at Betterworks, in this new session where he'll share a practical framework to transform Gen AI prototypes into impactful products! He'll delve into the complexities of data collection and management, model selection and optimization, and ensuring security, scalability, and responsible use.
Alt. GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using ...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.
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.
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
2. Motivation
Data on the Web
Some eyecatching opener illustrating growth and or diversity of web data
Linked Data as enabler for Open Education
Stefan Dietze
(L3S Research Center, DE,
@stefandietze,
http://purl.org/dietze)
Stefan Dietze 03/04/14
3. Research areas
Web science, Information Retrieval, Semantic Web & Linked
Data, data & knowledge integration (mapping, classification,
interlinking)
Application domains: education/TEL, Web archiving, …
Some projects
Introduction
http://www.l3s.de/
Stefan Dietze 03/04/14 3
See also: http://purl.org/dietze
(Linked) Web data & education
Early activities in the field: tutorials, workshops, competitions
(LILE – Linked Learning, LAK Data Challenge…)
http://linkededucation.org & http://linkeduniversities.org
4. Educational Data/Resources on the Web
(Open) Educational Resources
World
Wide
Web
Distance Universities
Linked Open Data
MOOCs
Stefan Dietze 03/04/14
http://linkededucation.org &
http://linkeduniversities.org
5. Linked Data: Pluto & the seven Dwarfs?
Stefan Dietze 03/04/14
„…solar
system…
#pluto“
pluto the dwarf planet ?
6. “A little semantics goes a long way” (J. Hendler1)
dbp:CelestialBody
dbp:Pluto
dbp:Pluto(mythology)
typeOf
dwarfPlanetOf
Semantic Web
Adding meaning through
shared vocabularies and
schemas (eg DBpedia)
W3C standards RDF &
SPARQL for data &
knowledge representation
and querying
Persistent URIs to reference
& interlink data on the Web
1 Hendler, J., The Dark Side of the Semantic Web, IEEE Intelligent Systems, Jan/Feb 2007
yago:AstronomicalObjects
typeOf
dbp:SolarSystem
dbp:DwarfPlanetPluto
redirectOf
namedAfter
„…solar
system…
#pluto“
7. Semantic Web / Linked Data
FOAF
Gene
Ontology
BIBO
Geo
Ontology
DBpedia
Ontology
Dublin
Core
BBC
Program
mes
De-facto standard for sharing data on the Web
Vision: well connected graph of open Web data
350+ datasets and 50 billion triples in LOD Cloud alone
Other „incarnations“:
Google Knowledge Graph
Facebook Open Graph
http://schema.org
Stefan Dietze
„HTTP-accessibility“
(SPARQL, URI-dereferencing)
„Structure“ & „Semantics“
(=> shared/linked vocabularies)
„Interlinked“
„Persistent“
03/04/14
8. World
Wide
Web
Distance Universities
Linked Open Data
MOOCs
Stefan Dietze 03/04/14
http://linkededucation.org &
http://linkeduniversities.org
(Open) Educational Resources
Actually, how “open” is open educational data?
9. Educational schemas/vocabularies – a case of „XKCD927“?
Stefan Dietze 03/04/14
https://xkcd.com/927/
eg OER schemas, vocabularies, interfaces etc
10. Actually, how “open” is open educational data?
Just a short while ago...
Educational Data on the Web
Open Educational Resource (OER) metadata & MOOC
collections (e.g. OCW, OpenLearn, Merlot, Coursera)
Competing Web interfaces (e.g. OAI-PMH, SOAP, REST)
Competing metadata standards (e.g. IEEE LOM, ADL
SCORM, DC…) & taxonomies & exchange formats (JSON,
RDF, XML)
Issues: heterogeneity & lack of interoperability
Stefan Dietze 03/04/14
11. Actually, how “open” is open educational data?
Educational Data & Linked Data?
Linked (Open) Data
Vision: well connected graph of open Web data
W3C standards (RDF, SPARQL) to expose data, URIs to
interlink datasets
Linking of schemas, vocabularies, data =>
interoperability
Educational Data on the Web
Open Educational Resource (OER) metadata & MOOC
collections (e.g. OCW, OpenLearn, Merlot, Coursera)
Competing Web interfaces (e.g. OAI-PMH, SOAP, REST)
Competing metadata standards (e.g. IEEE LOM, ADL
SCORM, DC…) & taxonomies & exchange formats (JSON,
RDF, XML)
Issues: heterogeneity & lack of interoperability
Pictures (c) by Paul Miller
Stefan Dietze 03/04/14
12. A shorter while ago
Bringing OER into the LOD landscape
http://datahub.io/dataset/meducator
Manually curated and automatically exported &
enriched OER from variety of sources
> 35000 triples so far
> enrichments to DBpedia & Bioportal ontologies
APIs used by several applications
Automated data lifting & enrichment
Stefan Dietze 03/04/14
13. Using LD in (medical) educational applications
Recommending educational resources across repositories
http://metamorphosis.med.duth.gr
Using LD for
integrating
educational
resources from
range of
universities and
OER repositories
(eg Open Learn,
Open Courseware
etc)
14. “Structured” descriptions of OER? http://metamorphosis.med.duth.gr
Metadata of educational resource (virtual
patient) lifted into RDF
18. before
vs
after
Embedding educational repositories into a joint graph
„HTTP-accessibility“
(SPARQL, URI-dereferencing)
„Structure“ & „Semantics“
(=> shared/linked vocabularies)
„Interlinked“
„Persistent“
19. Linked Data for Learning – How is it useful?
Stefan Dietze
1. Linked Data for data sharing, enrichment and interpretation
RDF, SPARQL & shared vocabularies to improve interoperability of learning/user data
facilitate OER reuse vision across isolated platforms
2. Linked Data as body of knowledge for learning & education
Vast amount of publicly available resources and data
Dedicated OER and university data + „knowledge resources“ (from DBpedia to Slideshare)
Interlinking educational Resources and the Web of Data – a Survey of Challenges and
Approaches, Stefan Dietze, Salvador Sanchez-Alonso, Hannes Ebner, Hong Qing Yu,
Daniela Giordano, Ivana Marenzi, Bernardo Pereira Nunes, Emerald Program: electronic
Library and Information Systems, Volume 47, Issue 1 (2013).
Linked Data for Open and Distance Learning, Mathieu d’Aquin, report for the Common
Wealth of Learning,
„HTTP-accessibility“
(SPARQL, URI-dereferencing)
„Structure“ & „Semantics“
(=> shared/linked vocabularies)
„Interlinked“
„Persistent“
03/04/14
http://linkededucation.org &
http://linkeduniversities.org
20. „Success models“:
data & applications
Stefan Dietze 03/04/14 26
LinkedUp Challenge
to identify innovative
tools & applications
Evaluation methods
and approaches
“LinkedUp” – Linking Web Data (for Education)
L
Data curation &
profiling
Technology transfer
& community-building
Collecting & exposing open
data of educational relevance
=> LinkedUp Data Catalog
Profiling and linking of Web
Data => profiles of educational
datasets
Disseminating knowledge &
building communities
(educators, computer
scientists, data engineers)
Gathering stakeholder
feedback: use cases, and
requirements
European project aimed at
advancing take-up of open data
and related technologies
http://linkedup-challenge.org/#usecases
http://linkedup-project.eu/events
http://www.linkedup-challenge.org/
http://linkedup-project.eu
http://data.linkededucation.org
21. Stefan Dietze
Who we areL
LinkedUp Network
LinkedUp Consortium
LinkedUp Advisory Board
22. Too many/diverse datasets, too little information
Stefan Dietze 03/04/14
?
?
? ?? ?
Which datasets are useful & trustworthy for case
XY (eg „learning about the solar system“) ?
Which topics (eg „Astronomy“) are covered?
Accessability/reliability?
Which datasets describe/offer videos (slides,
publications, statistics etc)?
23. Curating a catalog of data for education
LinkedUp
Dataset Catalog
Stefan Dietze 03/04/14
Catalog of data (LinkedUp
Catalog): classification of datasets
according to resource types,
disciplines/topics, data quality,
accessability, etc
Infrastructure for
distributed/federated querying
describes
Which datasets are useful & trustworthy for case
XY (eg „learning about the solar system“) ?
Which topics (eg „Astronomy“) are covered?
Accessability/reliability?
Which datasets describe/offer videos (slides,
publications, statistics etc)?
24. db:Astro. Objects
Building a registry for educational datasets
Dataset
Metadata
Stefan Dietze 03/04/14
BIBO
AAISO
FOAF
contains
Entity disambiguation &
linking [ESWC13]
Topic profile extraction
[WWW13, ESCW14]
db:Astronomy
db:Astro. Objects
LinkedUp
Dataset Catalog
yov:Video
po:Programme
BBC Programme
<po:Programme …>
<po:Series>Wonders of the Solar System</.>
<po:Actor>Brian Cox</…>
</po:Programme…>
<yo:Video …>
<dc:title>Pluto & the
Dwarf Planets</dc:title>
…
</yo:Video…>
Yovisto Video
bibo:Fil
bibo:Fi
bibo:Film
Schema mappings
[WebSci13]
25. LinkedUp Data Catalog
in a nutshell http://datahub.io/group/linked-education
http://data.linkededucation.org/linkedup/catalog/
RDF (VoID) dataset catalog: browse &
query distributed datasets & mappings
Live information about endpoint
accessibility
Federated queries using type mappings
Stefan Dietze 03/04/14
http://datahub.io/group/linked-education
26. Dataset profiling: exploring LOD datasets/topics
in a nutshell http://data-observatory.org/lod-profiles/
Stefan Dietze 03/04/14
Automatic extraction of dataset “topics” [ESWC2014]
Visualisation & exploration of dataset-topic graph
(datasets, topics, relationships)
Includes all (responsive) datasets of LOD Cloud
27. Stefan Dietze 03/04/14
http://data-observatory.org/led-explorer/
Type specific views on datasets/
categories
“Document” (foaf:document)
“Person “ (foaf:person)
“Course” (aaiso:course)
Currently applied to datasets in
LinkedUp Catalog only (as
schema mappings already
available here)
Type-specific exploration of dataset categories
28. LinkedUp Challenge: using open data for learning
Open Data Competition to promote tools and applications that analyse / integrate (Linked)
Web data
Organised by LinkedUp project over 2 years (“Veni”, “Vidi”, “Vici”) with 40.000 EUR awards
Veni Competition - 22 submissions, 8 shortlisted for presentation at Open Knowledge
Conference (17 September, Geneva Switzerland)
http://linkedup-challenge.org
Stefan Dietze 03/04/14 45
29. Open & focused track(s)
Final events at ESWC2014
(May, Crete)
Open Track only
Final events at OKCon 2013
(September 2013, Geneva)
Open track & focused tracks
Submission details and calls to be
released soon
Final events at ISWC2014
(October, Riva del Garda, Italy)
May –September 2013 October 2013 – May 2014 May 2014 – October 2014
?
31. 1st Place: PoliMedia
Exploring political debates & events
09/04/13Stefan Dietze
Exploration of political debates and news
coverage
Automatically generated links between transcripts
debates, newspaper articles,
Generated data available as Linked Data
(http://data.polimedia.nl)
Data sources: 1) newspapers in their original layout
of the historical newspaper archive, and 2) radio
bulletins of the Dutch National Press Agency (ANP)
9000+ debates (1945 – 1995)
Over 3000 media links
Martijn Kleppe, Max Kemman, Henri Beunders (Erasmus Universiteit
Rotterdam), Laura Hollink Damir Juric (Vrije Universiteit Amsterdam), Johan
Oomen Jaap Blom (Nederlands Instituut voor Beeld en Geluid)
http://www.polimedia.nl/
32. 2nd Place: GlobeTown
Open data for sustainable development
09/04/13Stefan Dietze
Exploring interaction between data about
environment, economy and society
(cause and effect in complex systems)
Diverse open government data:
SWERA renewable energy data:
http://swera.unep.net/,
UN Comtrade trade data:
http://comtrade.un.org/,
Country names and codes:
http://opengeocode.org,
OECD statistics: http://stats.oecd.org/,
World Bank:
http://data.worldbank.org
Top three at Apps4Climate competition,
held by the World Bank
Jack Townsend, Andrea Prieto-Vega, Richard Gomer, Will Fyson, Dom
Hobson, Huw Fryer (University of Southampton, UK)
http://www.globe-town.org/
33. 3rd Place/Peoples Choice: WeShare
Exploring, annotating, rating educational ICT tools
Stefan Dietze 03/04/14
Social & semantic annotation
application for educational ICT
tools
Aids educators to find tools to
support teaching at all educational
levels
Gathers and enriches data from
existing registries and datasets
Currently: approx. 7000 tool
descriptions
Crowdsourcing: educators, tutors
etc can modify and enrich data
Adolfo Ruiz-Calleja, Guillermo Vega-Gorgojo, Juan I. Asensio-Pérez, Eduardo
Gómez-Sánchez, Miguel L. Bote-Lorenzo, Carlos Alario-Hoyos
Universidad de Valladolid, Universidad Carlos III de Madrid, Valladolid, Spain
http://seek.cloud.gsic.tel.uva.es/weshare/
35. Learning Analytics & Knowledge Data & Challenge
Facilitating Research on Learning Analytics and EDM
a nutshell
Stefan Dietze 03/04/14
http://lak.linkededucation.org/
LAK Dataset (450 publications in RDF/R)
ACM International Conference on Learning Analytics and
Knowledge (LAK) (2011-13)
International Conference on Educational Data Mining (2008-13)
Journal of Educational Data Mining (2008-12)
LAK Data Challenge
Analyse, explore correlate the LAK Dataset
At ACM LAK 2014 (April 2014, Indianapolis)
36. Linked Data as enabler for educational resources
sharing
Interpretation of user & resource (meta)data
Understanding of learning contexts
Data disambiguation and integration
Cross-platform recommendations and analytics
Linked Data as body of knowledge for learning
Dedicated educational/learning content
Repurposing of knowledge resources (social media
etc)
Challenges
Noise & diversity
Gap between technical community and end users
/educators/learners
LinkedUp: technology transfer events, exploitation
workshops etc
EUCLID
Conclusions – “Lessons Learned”
Stefan Dietze 03/04/14 54
37. Outlook: some events & resources
03/04/14 55Stefan Dietze
LinkedUp Challenge
(http://www.linkedup-challenge.org)
Vidi events at ESWC2014, Vici calls coming soon
Learning Analytics & Knowledge Dataset
(http://lak.linkededucation.org)
+ associated annual challenge
PROFILES workshop @ ESWC2014
(http://keystone-cost.eu/profiles2014)
26 May, Crete, Greece
Linking User Data 2014 at UMAP2014
(http://liud.linkededucation.org)
Deadline: 1 April
LinkedUp Vici Workshop @ ESWC
26 May, Crete, Greece
38. Thank you!
WWW
See also (general)
http://linkedup-project.eu
http://linkedup-challenge.org
http://linkededucation.org
http://data.l3s.de
http://linkeduniversities.org
http://purl.org/dietze
See also (data)
http://datahub.io/group/linked-education
http://data.linkededucation.org
http://data.linkededucation.org/linkedup/catalog/
http://lak.linkededucation.org
03/04/14 56Stefan Dietze