Social Annotations in Digital Library Collections

Annotations: Enriching a Digital Library

Event-based Maintenance of Digital Library Collections

We consider the problem of updating a digital library collection automatically when certain events occur. Existing digital library systems require the user to either re-build manually or to schedule re-building at specified times. Ideally, a collection should be re-built whenever some collection-changing event occurs. We propose the Event Monitor for Greenstone, a tool that continually tests fo...

Computing Intensions of Digital Library Collections

We model a Digital Library as a formal context in which objects are documents and attributes are terms describing documents contents. A formal concept is very close to the notion of a collection: the concept extent is the extension of the collection; the concept intent consists of a set of terms, the collection intension. The collection intension can be viewed as a simple conjunctive query whic...

Enriching Digital Cultural Heritage Collections via Annotations: The CULTURA approach

This paper introduces the main characteristics of the CULTURA project and of the IPSA collection, which constitutes one relevant use case presently in use in the CULTURA environment. We describe the innovative annotation features of the CULTURA portal for digital humanities; these features are aimed at improving the interaction of users with digital cultural heritage (CH) content. The annotatio...

Evaluating User Behavior on Data Collections in a Digital Library

We evaluate the usage of a Digital Library with many different collections, by examining its log files, and we concluded that the access points that the users mostly refer to, depend heavily on the type of content of the collection. We also found that most users not only tend to use simple query structures (e.g. one search term) and very few operations per session but they also reduce the compl...