Acaba de ser publicado o n. 1, v. 11 da International Journal on Digital
Libraries. Os artigos incluídos foram:
· Relevance feedback revisited: dealing with content and
structure in XML documents (Lobna Hlaoua, Karen Pinel-Sauvagnat & Mohand
Boughanem)
Abstract
Relevance feedback (RF) is a technique that allows to enrich an initial query
according to the user feedback. The goal is to express more precisely the
user's needs. Some open issues arise when considering semi-structured documents
like XML documents. They are mainly related to the form of XML documents which
mix content and structure information and to the new granularity of
information. Indeed, the main objective of XML retrieval is to select relevant
elements in XML documents instead of whole documents. Most of the RF approaches
proposed in XML retrieval are simple adaptation of traditional RF to the new
granularity of information. They usually enrich queries by adding terms
extracted from relevant elements instead of terms extracted from whole
documents. In this article, we describe a new approach of RF that takes
advantage of two sources of evidence: the content and the structure. We propose
to use the query term proximity to select terms to be added to the initial
query and to use generic structures to express structural constraints. Both
sources of evidence are used in different combined forms. Experiments were
carried out within the INEX evaluation campaign and results show the
effectiveness of our approaches.
· Historical research in archives: user methodology and
supporting tools Torou Elena, Akrivi Katifori, Costas Vassilakis, George
Lepouras & Constantin Halatsis
Abstract
Historic research involves finding, using, and correlating information within
primary and secondary sources, in order to communicate an understanding of past
events. In this process, historians employ their scientific knowledge,
experience, and intuition to formulate queries (who was involved in an event,
when did an event occur etc.), and subsequently try to locate the pertinent
information from their sources. In this article, the authors investigate how
historians formulate queries, which query terms are chosen, and how historians
proceed in searching for related information in sources. The insight gained
from this investigation can be subsequently used for organizing documents
within historical source repositories and building tools that will enable
historians to access the needed information more rapidly and fully.
· On Digital Library foundations (Leonardo Candela, Donatella
Castelli, Edward A. Fox & Yannis Ioannidis)
Abstract
This introduction and the following article by Meghini et al. are the beginning
of a planned series of articles on the topic of Digital Library foundations.
Authors working on this research topic are encouraged to submit articles about
their work to IJDL.
· A data model for digital libraries (Carlo Meghini, Nicolas
Spyratos & Jitao Yang)
Abstract
We present a data model for digital libraries supporting identification,
description, and discovery of digital objects. The model is formalized as a
first-order theory, certain models of which correspond to the intuitive and
practical notion of digital library. We use the model as a yardstick to assess
the adequacy of the World Wide Web as a digital library and show why, in its
present form, the Web is far from fulfilling this objective, while the Semantic
Web does better in that respect.
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Prof. Murilo Bastos da Cunha, Ph. D.
Universidade de Brasilia
Faculdade de Ciência da Informação (FCI)
Brasilia, DF 70710-900 Brasil
Blog: http://bibliotecadobibliotecario.blogspot.com/
Blog: http://a-informacao.blogspot.com/
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