KMi Seminars
New Paradigms in Multimedia Management and Access
This event took place on Tuesday 13 December 2005 at 12:30

 
Prof. Stefan Rueger KMi, The Open University, United Kingdom

Digital Multimedia objects, in libraries or otherwise, hold the promise of being able to be indexed by their contents just as other documents can be indexed and searched by their full text. This talk presents new paradigms for digital knowledge management that were developed in my lab; they include

- novel browsing methods that utilise an automated structuring of the digital collection as a small-world graph with a low degree of separation

- content-based multimedia retrieval, eg, search of still images similar to given ones; finding a news story broadcast over TV by providing visual examples; finding a music piece by humming it etc. Our approach for finding material is not based on manual annotation but on /automated/ processing.

- clustering and visualisation techniques to present material in a collection or organise large document sets that were returned in a query.

Some of the challenges in this approach are given by the semantic gap between what computers can index and high-level human concepts and by polysemy, ie, the many meanings and interpretations that are inherent in visual material and the corresponding wide range of information need by the user. We try to overcome these challenges by utilising the skills of the user, for example through a process that we call relevance feedback, thus putting the user at centre stage. Behind the scene, we deploy learning algorithms that adapt themselves to the user and their information need.

We argue that these methods, when integrated into digital libraries, will not only enhance their searching and browsing capabilities but also give access through unconventional query methods such as sketching, similarity browsing and providing examples of what is relevant.

Download PowerPoint presentation (10.4Mb ZIP file)

 
KMi Seminars Event | SSSW 2013, The 10th Summer School on Ontology Engineering and the Semantic Web Journal | 25 years of knowledge acquisition
 

Future Internet is...


Future Internet
With over a billion users, today's Internet is arguably the most successful human artifact ever created. The Internet's physical infrastructure, software, and content now play an integral part of the lives of everyone on the planet, whether they interact with it directly or not. Now nearing its fifth decade, the Internet has shown remarkable resilience and flexibility in the face of ever increasing numbers of users, data volume, and changing usage patterns, but faces growing challenges in meetings the needs of our knowledge society. Globally, many major initiatives are underway to address the need for more scientific research, physical infrastructure investment, better education, and better utilisation of the Internet. Within Japan, USA and Europe major new initiatives have begun in the area.

To succeed the Future Internet will need to address a number of cross-cutting challenges including:

  • Scalability in the face of peer-to-peer traffic, decentralisation, and increased openness

  • Trust when government, medical, financial, personal data are increasingly trusted to the cloud, and middleware will increasingly use dynamic service selection

  • Interoperability of semantic data and metadata, and of services which will be dynamically orchestrated

  • Pervasive usability for users of mobile devices, different languages, cultures and physical abilities

  • Mobility for users who expect a seamless experience across spaces, devices, and velocities