Trond Aalberg

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Digital libraries (DLs) are new and innovative information systems, under constant development and change, and therefore evaluation is of critical importance to ensure not only their correct evolution but also their acceptance by the user and application communities. The Evaluation activity of the DELOS Network of Excellence has performed a large-scale(More)
This paper presents a generic process and a tool for the conversion of MARC-based bibliographic records to the ER-based model of the Function Requirements for Bibliographic Records. The interpretation of a record, the construction of a new set of records and the final normalization needed, is decomposed into a series of steps that is implemented in the tool(More)
Programming exercises are an important part of an introductory course in programming. To improve the focus on encapsulation, requirements-based testing and give better feedback given to the students during their work, we have created an Eclipse-based plugin called JExercise. Based on a model of an exercise, it presents the structure of requirements to the(More)
This paper presents an approach to automatically extract entities and relationships from textual documents. The main goal is to populate a knowledge base that hosts this structured information about domain entities. The extracted entities and their expected relationships are verified using two evidence based techniques: classification and linking. This last(More)
In this paper, we present an approach to automatically link FRBR works identied in metadata to the corresponding entity in Linked Open Data resources. The main contribution is a basis for semantic enrichment and verication of works identied in existing metadata. Through experiments, we demonstrate that FRBR works can be identi-ed in the LOD cloud, which(More)
The FRBR model has received much attention due to its potential for greatly improving user interaction with digital libraries. However, the amount of information found on the Web is far larger than in digital libraries. In this demo, we present an approach to transform Web-based resources to a FRBR compatible form, a process known as FRBRization. The(More)