Producción de Sistemas de Información Agosto-Diciembre 2007 Sesión # 8

1. Producción de Sistemas de InformaciónAgosto-Diciembre 2007Sesión # 8

2. Basic Concepts • Data • Database • Collection, Library, Archive • Digital Collection • Digital Repository • Digital Library

3. Digital Collection: Examples • Digital collections@UM • Archives UM • Films@UM • DRUM • Sterling Family Papers • The Jim Henson Works • Etc… • Image collections

4. Image Collections • Fine Arts Museum of San Francisco http://www.thinker.org/ • Art Museum Image Consortium http://www.amico.org/ • SILS Art Image Browser http://www.si.umich.edu/Art_History/

5. Image Collections: Issues • Image users • Image collection • Image indexing • Image retrieval

6. Image Collections: Issues Artists as information users • Fine Artists: producing art • Art Historians: studying art

7. Fine Artists and Art Historians Information needs: • A strong need to access information in several formats and several languages. • Sometimes they need to find objects and images similar to one they have already found.

8. Fine Artists and Art Historians Information seeking: • Tend to search information by themselves. • Tend to browse and explore image collections without any specific idea of their information needs. • They tend to make extensive use of images in digital format.

9. Fine Artists and Art Historians Information seeking: • When they know the specific work of art they are looking for, the main criteria used to search for images are text-based attributes, such as: • Title • Author • Period • Country of origin • Type of art object

10. Fine Artists and Art Historians Information use: • The relevance criteria they generally use to assess the relevance of visual materials are: • Topicality • Image quality • Image accessibility • Image novelty • Image suggestiveness

11. Image Collections: Issues Design of new system features: • Browsing several images at a time • Exploring diverse collections at a time • Adaptive search strategies: • Concept-based search (ofness & aboutness) • Content-based search (bolbworlds: texture, shape & color)

12. Image Collections: Issues • Design of new standards and guidelines for image classification/indexing for digital collections. • Examples: • CDWA: Categories for the Descriptions of Works of Art • VRA: Core Categories for Visual Art • Best Practice Guidelines for Digital Collections at UMD (See PDF file)

13. Image Collections: Issues • Design of new standard vocabularies, authorities, and term lists used for classifying works of art. • Examples: • Library of Congress Subject Headings (LCSH) • Art and Architecture Thesaurus (AAT) • ICONCLASS • Union List of Artist Names (ULAN) • Thesaurus of Geographic Names (TGN) • LC Thesaurus for Graphic Materials I (TGM I) • Others

14. Digital Repository: Example Dspace: • An open-source digital archiving system designed by MIT Libraries and Hewlett Packard to capture, manage, and share research in digital formats. • Over 200 organizations have adopted Dspace as the basic architecture to develop their institutional repositories. • http://dspace.org/

15. Basic Concepts Digital Library: • A collection of information, sources, and services in digital format, organized for use, and maintained by a public body, an institution, or a private individual.

16. Digital Libraries: Examples • ICDL • MALACH • PDLib

17. ICDL Demo • ICDL: International Children Digital Library • HCILab at the UMD • KidsTeam: a design methodology in which children of diverse backgrounds participate as design partners • URL: http://www.icdlbooks.org/

18. ICDL Research Areas • How do children from diverse cultures search books: • In print format? • in digital format? • How do children interact with digital content? • How do children build communities of digital library users across cultures?

19. ICDL Research Areas • How do children learn when searching and interacting with information in digital environments? • What are the personal information seeking patterns of children, as opposed to those identified for imposed information seeking? • How do children select and evaluate information?

20. MALACH Project • MALACH (“angel”, in Hebrew) • Private video collection • 52,000 interviews • 32 languages • 3,000 interviews manually indexed • 49,000 interviews waiting… • http://www.usc.edu/schools/college/vhi/ (See PDF file)

21. MALACH Project • 5 year project: • design and develop an automated video indexing system • several research groups • several disciplines • System architecture • speech recognition algorithms • cross-lingual retrieval algorithms • system interface

22. MALACH Project Main features and information services: • Automated translation and indexing of digital video interviews • Access to interview content by: • Browsing • Using key words • Query extension and refinement using a Thesaurus • Online help

23. MALACH Project Research Funcionality: • How to increase the performance of speech-recognition algorithms? • How to integrate cross-lingual retrieval algorithms? Usability: • How do users search and interact with digital video environments? • What kind of user interface better supports information discovery and exploration?

24. PDLib Project • PDLib:Portable Digital Library • An open source DL architecture where users can store all kinds of documents, and then retrieve them from desktop or mobile devices. • http://pdlib.mty.itesm.mx/webclient/

25. PDLib: Client/Server Architecture

26. PDLib Project Basic features: • Store your own documents • Share documents with other users • Feed your library through Internet searches • Search documents: • with metadata attributes • using full text • within multiple collections • Retrieve your documents anytime, anywhere, from your cell phone or PDA

27. PDLib Research Areas Funcionality: • How to increase the performance of full-text search algorithms? • How to integrate cross-lingual retrieval algorithms? Usability: • How do PDLib users search and interact with information in digital environments? • Is it possible to develop an audio-based interface for mobile devices?