producción de sistemas de información agosto-diciembre 2007 sesión # 8

Producción de Sistemas de Información

Agosto-Diciembre 2007

Sesión # 8

Basic Concepts

Data

Database

Collection, Library, Archive

Digital Collection

Digital Repository

Digital Library

Digital Collection: Examples

Digital collections@UMArchives UM

Films@UM

DRUM

Sterling Family Papers

The Jim Henson Works

Etc…

Image collections

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/

Image Collections: Issues

Image users

Image collection

Image indexing

Image retrieval

Image Collections: Issues

Artists as information users

Fine Artists: producing artArt Historians: studying art

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.

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.

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

Fine Artists and Art Historians

Information use:The relevance criteria they generally use to assess the relevance of visual materials are:

TopicalityImage qualityImage accessibilityImage noveltyImage suggestiveness

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)

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 ArtVRA: Core Categories for Visual ArtBest Practice Guidelines for Digital Collections at UMD

(See PDF file)

Image Collections: IssuesDesign 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)ICONCLASSUnion List of Artist Names (ULAN)Thesaurus of Geographic Names (TGN)LC Thesaurus for Graphic Materials I (TGM I)Others

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/

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.

Digital Libraries: Examples

ICDL

MALACH

PDLib

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/

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?

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?

MALACH Project

MALACH (“angel”, in Hebrew)

Private video collection52,000 interviews32 languages

3,000 interviews manually indexed49,000 interviews waiting…http://www.usc.edu/schools/college/vhi/

(See PDF file)

MALACH Project5 year project:

design and develop an automated video indexing systemseveral research groupsseveral disciplines

System architecturespeech recognition algorithmscross-lingual retrieval algorithmssystem interface

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

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?

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/

PDLib: Client/Server Architecture

PDLib Project Basic features:

Store your own documentsShare documents with other usersFeed your library through Internet searchesSearch documents:

with metadata attributesusing full textwithin multiple collections

Retrieve your documents anytime, anywhere, from your cell phone or PDA

PDLib Research AreasFuncionality:

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?