sw-app.org

About Michael Hausenblas

This page informs about my academic and practical activities and results. It contains information about:

• my PhD;
• current projects;
• recent PC and reviewing activities;
• some Web Of Data outreach and education;
• my publications;
• selected talks and events;
• some rather private aspects.

Abstract

The Semantic Web has become real over the past couple of years. However, while certain issues, such as interoperability, etc. have been addressed, the practical utilisation of multimedia metadata on the Semantic Web regarding scalability and expressivity is still widely neglected. However, existing Web applications handling millions of multimedia assets are starting to take advantage of Semantic Web technologies.

This work contributes to building scaleable and smart multimedia applications on the Semantic Web. Based on an analysis of practical issues stemming from diverse projects and activities the author has participated in over the past four years three areas have been identified, namely (i) performance and scalability issues on the data access level, (ii) the effective and efficient representation of multimedia content descriptions, and (iii) the deployment of multimedia metadata on the Semantic Web. The three research areas have as its common base the trade-off between expressivity and scalability.

We present our findings regarding scalable, yet expressive Semantic Web multimedia applications in a number of practical settings and discuss future directions.

Read more in the PhD Extended Abstract.

As a senior researcher at the Institute of Information Systems & Information Management (IIS) I am involved in all kind of activities and projects:

Ongoing

I'm the project leader of the Understanding Advertising (UAd) project (2007/2008).

As one project partner in the Together Anywhere, Together Anytime (TA2) project I coordinate the Institute's work (2008 - 2012).

The IIS participates in the K-Space project where I contribute regarding VAMP (2006 - 2008).

Via the W3C Semantic Web Deployment Working Group I'm a member of the RDF in XHTML Task Force (since 10/2006).

Just recently I joined the W3C Media Fragments Working Group (since 09/2008).

I also blog about Web Of Data, linked data and RDFa over at .

I invest a considerable amount of time helping to shape voiD, the Vocabulary Of Interlinked Datasets .

Recently

I was the scientific lead of the new millennium, new media (NM2) project (2004 - 2007).

I initiated the initiative (2007).

I am one of the three founding members of (2007)

I was a member of the W3C Multimedia Semantics Incubator Group (2006/2007).

In the realm of our projects and also in my spare time I like to hack around a bit; be it as a proof-of-concept or simple for fun:

... ubiquity - a collection of commands for the web of data (currently: Sindice, DBpedia and curl)

... RSS2RDFa - converts RSS 1.0 feeds into an XHTML+RDFa representation

... ve, the voiD editor

... CaMiCatzee - the multimedia data interlinking concept demonstrator

... rdf-o-meter, a util that allows gauging Semantic Web content embedded in (X)HTML pages such as RDFa, eRDF, microformats

... i r s, a generic linked-data editor with RDFa export (see also announcement)

... mle, the mailing list explorer.

... Ask SID!, a social (or semantic ID generator).

... a RDFiser showcase for flickr's machine tags, called PSIMeter.

... FOAFr, a tool to convert FOAF-RDF/XML docs into HTML+RDFa docs.

... VAMP, the semantic VAlidation service for MPEG-7 Profiles Descriptions.

... finally, I also maintain JRS Semantic Web Utils, our jump-start for Semantic Web engineers.

International Workshop on Interacting with Multimedia Content in the Social Semantic Web IMC-SSW (2008)

1st Social Data on the Web workshop SDoW2008 (2008)

Doctoral consortium at International Semantic Web Conference DC ISWC08 (2008)

First International Workshop on Story-Telling and Educational Games STEG08 (2008)

Semantic Authoring, Annotation and Knowledge Markup Workshop SAAKM08 (2008)

3rd International Conference on Semantic and Digital Media Technologies SAMT (2008)

4th Workshop on Scripting for the Semantic Web SFSW (2008)

Linked Data on the Web Workshop LDOW (2008)

European Interactive TV Conference EuroITV (2008)

Semantic Web User Interaction at CHI SWUI (2008)

Workshop on Multimedia Metadata Management & Retrieval MR3 (2008)

1st Workshop on Multimedia Annotation and Retrieval enabled by Shared Ontologies MAReSO (2007)

Knowledge Acquisition from Multimedia Content Workshop KAMC (2007)

Multimedia Metadata Applications M3A (2007)

Journal: International Journal on Semantic Web and Information Systems

Journal: IEEE Multimedia

Journal: SPIC (2007)

Journal: MTAP/JOWS (2007)

In the realm of the Web of Data and media semantics I also supervise master students:

COMPLETED: Hannes Bauer, New Media for a New Millennium – Semantic Description of Multimedia Content, Upper Austria University of Applied Sciences, 2006.

COMPLETED: Wolfgang Weiß, Visual Exploration, Query, and Debugging of RDF-Graphs and Ontologies, FH Joanneum University of Applied Sciences, 2007.

ONGOING: Martin Höffernig, Semantic Multimedia Metadata Mapping, Faculty of Computer Science, Graz University of Technology, 2007.

ONGOING: Selver Softic, Tracing and Understanding Discussions on the Web, Faculty of Computer Science, Graz University of Technology, 2008.

In case you are interested to do a master thesis in the realm of media semantics, please, let me know :)

Book Chapters

M. Hausenblas. Anreicherung von Webinhalten mit Semantik – Microformats und RDFa in Social Semantic Web, date of publication: 2008-10-02. (DE)

Project Deliverables

B. Huet et al. State of the Art on Multimedia Content Analysis, EU-project K-Space, Deliverable D.3.1. Jun 2006.

F. Höller, H. Zeiner, W. Bailer, M. Hausenblas. Metadata in the Digital Cinema Workflow and its Standards Report v1, EU-project IP-RACINE, Deliverable 3.2.1. Jun 2005.

W. Bailer, F. Hoeller, A. Messina, D. Airola, P. Schallauer, M. Hausenblas. State of the Art of Content Analysis Tools for Video, Audio and Speech, EU-project PrestoSpace, Deliverable D15.3 MDS3. Mar 2005.

Tutorials and Notes

A Quick Introduction Into Linked Data [slides] [video]. 2008.

Linked Data community Wiki: Interlinking Multimedia. 2008.

Linked Data community Wiki: Using Linking Open Data datasets. 2008.

RDFa community Wiki: How To Validate XHTML+RDFa. 2008.

RDFa community Wiki: Dynamic Content Parsing. 2008.

M. Hausenblas. Writing Functional Code with RDFa (how to convert RSS 1.0 news feeds to XHTML+RDFa), devx.com. Sep 2008.

M. Hausenblas. Eulen nach Jena (Article in German Magazine). Nov 2005.

Vocabularies

K. Alexander, R. Cyganiak, M. Hausenblas, J. Zhao. Vocabulary of Interlinked Datasets (voiD) since 2008.

D. Ayers, L. Feigenbaum, W. Halb. M. Hausenblas, T. Heath, Y. Raimond. The Statistical Core Vocabulary (scovo) since 2008.

M. Hausenblas, W. Bailer. RDFa-deployed Multimedia Metadata (ramm.x) since 2007.

W3C Activities

ESW Wiki: How to use HTML and RDF together

ESW Wiki: RDFa vs. RDF/XML

M. Hausenblas, B. Adida. RDFa Implementation Report. W3C Semantic Web Deployment Working Group, Editor's Draft. 2008.

M. Hausenblas, B. Adida. RDFa in HTML Overview. W3C Semantic Web Deployment Working Group, Editor's Draft. 2007.

B. Adida, M. Hausenblas. RDFa Use Cases: Scenarios for Embedding RDF in HTML. W3C Semantic Web Deployment Working Group, W3C Working Draft. 2007.

M. Hausenblas, W. Yung. RDFa Test Suite. W3C Semantic Web Deployment Working Group, Editor's Draft. 2007.

M. Hausenblas, S. Boll, T. Bürger, O. Celma, C. Halaschek-Wiener, R. Troncy. Multimedia Vocabularies on the Semantic Web. W3C Incubator Group Report, 24 Jul 2007.

O. Celma, S. Dasiopoulou, M. Hausenblas, S. Little, C. Tsinaraki, R. Troncy. MPEG-7 and the Semantic Web. W3C Incubator Group Editor's Draft, 14 Aug 2007.

Position Papers

R. Troncy, L. Hardman, J. van Ossenbruggen, M. Hausenblas. Position Paper on Identifying Spatial and Temporal Media Fragments on the Web. W3C Video on the Web Workshop. Dec 2007.

M. Hausenblas, W. Weiss. Position Paper on The Needs of Semantic Web Engineers. 4th International Semantic Web User Interaction Workshop. Jun 2007.

M. Hausenblas, H. Mayer, G. Thallinger. Position Paper on Frameworks for Semantics in Web Services. W3C Workshop on Frameworks for Semantics in Web Services. Jun 2005.

2008

S. Softic, M. Hausenblas. Towards Opinion Mining Through Tracing Discussions on the Web. Social Data on the Web (SDoW 2008) Workshop at the 7^th International Semantic Web Conference (ISWC). To appear.

M. Hausenblas, W. Halb. Interlinking Multimedia Data. Linking Open Data Triplification Challenge at the International Conference on Semantic Systems (I-Semantics08) at TRIPLE-I. Sep 2008.

M. Hausenblas, W. Halb, Y. Raimond, T. Heath. What is the Size of the Semantic Web? International Conference on Semantic Systems (I-Semantics08) at TRIPLE-I. Sep 2008.

M. Hausenblas. Non-linear Interactive Media Productions. Special Issue of ACM Multimedia Systems Journal on Canonical Processes of Media Production. 2008.

M. Hausenblas, W. Halb. Interlinking of Resources with Semantics. Poster at the 5^th European Semantic Web Conference (ESWC 08). Jun 2008.

M. Hausenblas, W. Halb, Y. Raimond. Scripting User Contributed Interlinking. 4^th Workshop on Scripting for the Semantic Web (SFSW 08), collocated with the European Semantic Web Conference (ESWC). Jun 2008.

W. Bailer, M. Hausenblas, W. Haas. Enabling Audiovisual Metadata Interoperability with the European Digital Library. First Workshop on Semantic Interoperability in the European Digital Library (SIEDL 08), collocated with the European Semantic Web Conference (ESWC). Jun 2008.

W. Halb, Y. Raimond, M. Hausenblas. Building Linked Data For Both Humans and Machines. Linked Data on the Web Workshop (LDOW 08) at WWW08. Apr 2008.

W. Weiss, M. Hausenblas. Visual Exploration, Query, and Debugging of RDF Graphs. Semantic Web User Interaction Workshop (SWUI 08) at CHI 2008. Apr 2008.

2007

M. Hausenblas, W. Bailer, T. Bürger, R. Troncy. Deploying Multimedia Metadata on the Semantic Web. Poster at the 2^nd International Conference on Semantics And digital Media Technologies (SAMT 07). Dec 2007.

M. Hausenblas, R. Mörzinger, P. Hofmair, W. Haas. Towards Intelligent Assembly of Media Assets for Automated Character Animation. Short paper at the 1^st Workshop on Multimedia Annotation and Retrieval enabled by Shared Ontologies (MAReSO 07), collocated with the 2^nd International Conference on Semantics And digital Media Technologies (SAMT 07). Dec 2007.

R. Kaiser, M. Umgeher, M. Hausenblas. Metadata-based Adaptive Assembling of Video Clips on the Web. 2^nd International Workshop on Semantic Media Adaptation and Personalization (SMAP 07). Dec 2007.

M. Hausenblas, W. Bailer, H. Mayer. Deploying Multimedia Metadata in Cultural Heritage on the Semantic Web. Long paper at the First International Workshop on Cultural Heritage on the Semantic Web (CH-SW 07), collocated with the 6^th International Semantic Web Conference (ISWC). Nov 2007.

M. Hausenblas, H. Rehatschek. mle: Enhancing the Exploration of Mailing List Archives Through Making Semantics Explicit. Semantic Web Challenge 2007, collocated with the 6^th International Semantic Web Conference (ISWC). Semantic Web Application: mle. Nov 2007.

T. Bürger, M. Hausenblas. Why Real-World Multimedia Assets Fail to Enter the Semantic Web. Semantic Authoring, Annotation and Knowledge Markup Workshop (SAAKM 07), collocated with the 4^th International Conference on Knowledge Capture (K-Cap). Oct 2007.

M. Hausenblas. Applying Media Semantics Mapping in a Non-linear, Interactive Movie Production Environment. 1^st International Conference on New Media Technology (I-Media 07). Sep 2007.

M. Höffernig, M. Hausenblas, W. Bailer. Semantics of Temporal Media Content Descriptions. 7^th Multimedia Metadata Applications Workshop (M3A 07). Sep 2007.

M. Ursu, J. Cook, V. Zsombori, I. Kegel, D. Williams, M. Hausenblas, M. Tuomola. ShapeShifting Screen Media: A Declarative Computational Model for Interactive Reconfigurable Moving Image Narratives. Poster at the 3^rd Artificial Intelligence and Interactive Digital Entertainment Conference (AIIDE 07). Jun 2007.

M. Hausenblas, W. Slany, D. Ayers. A Performance and Scalability Metric for Virtual RDF Graphs. 3^rd Workshop on Scripting for the Semantic Web (SFSW 07), collocated with the European Semantic Web Conference (ESWC). Jun 2007.

W. Haas, W. Bailer, M. Hausenblas. Media Semantics. ÖGAI Journal, 26(1). 2007.

M. Hausenblas, F. Nack. Interactivity = Reflective Expressiveness. IEEE MultiMedia, 14(2):1–7, 2007.

2006

R. Troncy, W. Bailer, M. Hausenblas, P. Hofmair, R. Schlatte. Enabling Multimedia Metadata Interoperability by Defining Formal Semantics of MPEG-7 Profiles. 1^st International Conference on Semantics And digital Media Technology (SAMT 06). Dec 2006.

H. Rehatschek, M. Hausenblas, G. Thallinger, W. Haas. Cross media aspects in the areas of media monitoring and content production. 5^th International Conference on Language Resources and Evaluation (LREC 06). May 2006.

2005

M. Lux, W. Klieber, M. Granitzer, M. Hausenblas, H. Mayer. Digital Rights Management for Distributed Multimedia E-Learning Content. In: Interactive Computer Aided Learning Conference. Sep 2005.

W. Bailer, P. Schallauer, M. Hausenblas, G. Thallinger. MPEG-7 Based Description Infrastructure for an Audiovisual Content Analysis and Retrieval System. In: Conference on Storage and Retrieval Methods and Applications for Multimedia, San Jose, CA, USA. Jan 2005.

2003/4

M. Hausenblas. Diploma Thesis: Semantic Representation and Query of Legal Norms in the Area of Academic Law (DE). Feb 2004.

H. Zeiner, G. Kienast, M. Hausenblas, C. Derler, W. Haas. Video Assisted Geographical Information Systems. In: Cross-Media Service Delivery, pp. 205-215, Kluwer Academic Publishers. May 2003.

[ANNOUNCEMENTS] 2008-10

How to Publish Linked Data on the Web (ISWC08-LinkedData-Tutorial). Half-day Tutorial at the 7th International Semantic Web Conference (ISWC2008). Oct 27, 2008, Karlsruhe, Germany.

RDFa - Bridging the Web of Documents and the Web of Data (ISWC08-RDFa-Tutorial). A Half-day Tutorial at the 7th International Semantic Web Conference (ISWC2008). Oct 26, 2008, Karlsruhe, Germany.

Web of Data Practitioners Days (WOD-PD08), Oct 22 and 23, 2008, Vienna, Austria.

2008-09

TRIPLE-I 08 conference: JR stand and LOD Triplification Challenge at I-Semantics 2008.

2008-09-01

Danny Ayers from Talis quizzed me (podcast, some 20min)

2008-06

ESWC 2008, Tenerife, Spain. Met many interesting people and had really good discussions. Presented User Contributed Interlinking at the 4th Workshop on Scripting for the Semantic Web and a short paper at the First Workshop on Semantic Interoperability in the European Digital Library. Finally, at the poster session it was time to show i r s; fun without network.

Most notably we kicked-off voiD (vocabulary of interlinked datasets). Big thanks to Richard, Keith, and Jun; it was a real pleasure to work on this with you ... let's continue it! See also Keith's blog post and Richard's blog post.

2007-12-05

Attended the SAMT 2007, Genova, Italy: Presented a paper at the MAReSO workshop.

2007-12

Interview about Cultural Heritage on the Semantic Web (with semantic-web.at, in German).

2007-11

ISWC 2007, Busan, South Korea. Presented ramm.x at the Cultural Heritage on the Semantic Web workshop and demonstrated mle at the Semantic Web Challenge 2007.

2007-10-28

Presented our (Tobias and mine) paper at SAAKM 07 workshop (K-Cap Conference) in Whistler, Canada. Oct 2007.

2007-09

Presented the current state of my PhD at the K-Space PhD workshop in Berlin - great fun AND great people discussing Media Semantics.

2007-09

Been at the JOANNEUM RESEARCH stand at TRIPLE-I 07 conference.

I met some very interesting people there (eg. Henry Story). At the I-Media main track I gave a presentation on 'Media Semantics Mapping' (NM2), and evangelised people regarding ramm.x ;)

2007-06-07

Semantic Web User Interaction Workshop 2007: SWUI 2007 Position Statement.

2007-06-06

Talk on A Performance and Scalability Metric for Virtual RDF Graphs at the 3rd Workshop on Scripting for the Semantic Web.

2007-05-23

Tutorial on Shape shifted TV: Authoring and delivering new forms of interactive TV at the EuroITV 2007.

2007-01

Interview about digital media productions (with semantic-web.at, in German).

2006-12

Co-presentation of Enabling Multimedia Metadata Interoperability by Defining Formal Semantics of MPEG-7 Profiles at SAMT 2006.

2006-09

Demonstration of New Media for a New Millennium (NM2) at the International Broadcasting Convention 2006.

2006-06-11

Tutorial on What you Mean is What you Watch: Multimedia and the Semantic Web at the 3rd Annual European Semantic Web Conference ESWC 2006.

2005-06-22

Talk on Frameworks for Semantic in Web Services at Austria's Competence Center for Knowledge Management (KNOW-Center).

2005-06-09

W3C Workshop on Frameworks for Semantics in Web Services: Position Paper on Frameworks for Semantics in Web Services.

2004-02-26

Presentation of Diploma Thesis at Internationales Rechtsinformatik Symposion 2004 (DE)

2002-03-14

Talk at the Austrian Oracle User Group Meeting on Semantic Web Technology in Application Service Providing (DE).

Private

We, my girlfriend Anneli and I, have three wonderful and vivid children: Iannis, Ranya and Saphira.

My CV (PDF file about 78k), may answer some more possible questions ...

My public SSH2 key (1024 Bit RSA) is

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