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Publicações

Publicações por Cristina Ribeiro

2022

Fostering the Adoption of DMP in Small Research Projects through a Collaborative Approach

Autores
Maciel, A; Castro, JA; Ribeiro, C; Almada, M; Midão, L;

Publicação
Int. J. Digit. Curation

Abstract
In order to promote sound management of research data the European Commission, under the Horizon 2020 framework program, is promoting the adoption of a Data Management Plan (DMP) in research projects. Despite the value of a DMP to make data findable, accessible, interoperable and reusable (FAIR) through time, the development and implementation of DMPs is not yet a common practice in health research. Raising the awareness of researchers in small projects to the benefits of early adoption of a DMP is, therefore, a motivator for others to follow suit. In this paper we describe an approach to engage researchers in the writing of a DMP, in an ongoing project, FrailSurvey, in which researchers are collecting data through a mobile application for self-assessment of fragility. The case study is supported by interviews, a metadata creation session, as well as the validation of recommendations by researchers. With the outline of our process we also outline tools and services that supported the development of the DMP in this small project, particularly since there were no institutional services available to researchers

2023

Getting in touch with metadata: a DDI subset for FAIR metadata production in clinical psychology

Autores
Castro, JA; Rodrigues, J; Mena Matos, P; M D Sales, C; Ribeiro, C;

Publicação
IASSIST Quarterly

Abstract
To address metadata with researchers it is important to use models that include familiar domain concepts. In the Social Sciences, the DDI is a well-accepted source of such domain concepts. To create FAIR data and metadata, we need to establish a compact set of DDI elements that fit the requirements in projects and are likely to be adopted by researchers inexperienced with metadata creation. Over time, we have engaged in interviews and data description sessions with research groups in the Social Sciences, identifying a manageable DDI subset. A recent Clinical Psychology project, TOGETHER, dealing with risk assessment for hereditary cancer, considered the inclusion of a DDI subset for the production of metadata that are timely and interoperable with data publication initiatives in the same domain. Taking a DDI subset identified by the data curators, we make a preliminary assessment of its use as a realistic effort on the part of researchers, taking into consideration the metadata created in two data description sessions, the effort involved, and overall metadata quality. A follow-up questionnaire was used to assess the perspectives of researchers regarding data description.

2022

Report on the 2nd Linked Archives International Workshop (LinkedArchives 2022) at TPDL 2022

Autores
Lopes, CT; Ribeiro, C; Niccolucci, F; Villalón, MP; Freire, N;

Publicação
SIGIR Forum

Abstract

2012

Digital preservation, archives management, format migration, transformation, at scale, normalization

Autores
da Silva, JR; Riberio, C; Lopes, JC;

Publicação
Proceedings of the 9th International Conference on Digital Preservation, iPRES 2012, Toronto, Canada, October 1 - 5, 2012

Abstract

1991

MAXIMAL INTERVALS - AN APPROACH TO TEMPORAL REASONING

Autores
RIBEIRO, C; PORTO, A;

Publicação
LECTURE NOTES IN ARTIFICIAL INTELLIGENCE

Abstract
Temporal reasoning is recognized as a key problem in many Al areas, namely knowledge bases, natural language processing and planning. The ability to deal with partial knowledge is particularly important in a temporal domain. We describe a temporal language that accounts for incompletely specified temporal information about propositions. The language is semantically based on the notion of maximal interval, the denotation of a proposition being a set of maximal intervals where it holds. The main differences between classical formalisms such as those by Allen, McDermott, Shoham and Kowalski and our approach are briefly discussed. In a partial KB, abduction on the temporal order is generally needed to answer a query, and the answer is then conditional on the abduced facts. To comply with the intended semantics, an implicit form of temporal consistency has to be enforced, and this presents the main challenge to the design of the inference mechanism. We present here the syntax and declarative semantics of a propositional version of the language of maximal intervals and a first discussion of the problems in designing an inference system adequate to work with this temporal framework.

1991

REASONING WITH MAXIMAL TIME INTERVALS

Autores
RIBEIRO, C; PORTO, A;

Publicação
LECTURE NOTES IN ARTIFICIAL INTELLIGENCE

Abstract
The ability to deal with partial knowledge is particularly important in a temporal domain. We describe a temporal language that accounts for incompletely specified temporal information about propositions. Temporal terms in the language denote time instants and inequality constraints are used to keep incomplete information about their order. The language is semantically based on the notion of maximal interval, the denotation of a proposition being a set of maximal intervals where it holds. The adequacy of maximal intervals for temporal knowledge representation has been justified elsewhere [5]. In a partial KB, abduction on the temporal order is generally needed to answer a query, and the answer is then conditional on the abduced facts. To comply with the intended semantics, an implicit form of temporal consistency has to be enforced, and this presents the main challenge to the design of the inference mechanism. We present here the syntax and declarative semantics of a propositional version of the language of maximal intervals and a first discussion of the problems in designing an inference system adequate to work with this temporal framework. Rather than presenting a complete solution, we discuss several a roaches.

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