National Library of Portugal

mundo a conhecer melhor 6. Folheando os livros que ficaram no mosteiro 7.

Elastic Optical Networking enables efficient use of spectral resources at the cost of a large parameter space which needs to be optimized to maximize transmission bandwidth. By formulating this optimization problem as a Markov Decision Process, we show that by using a state of the art Reinforcement Learning algorithm an agent can be trained, which is able to select near optimal parameters for different link conditions within seconds. Furthermore, the trained agent is able to generalize to unseen conditions, removing the need to optimize and train for every possible link scenario.

A proposito do lancamento do LabX em outubro de 2016, debate-se a pertinencia de se realizar investigacao em torno do funcionamento das Bibliotecas da Administracao Central do Estado, ligada ao envolvimento dos cidadaos na investigacao, concecao e experimentacao de novas ideias para a modernizacao administrativa em Portugal. Apresenta-se uma sintese de estudos realizados no âmbito da convergencia das politicas para a sociedade de informacao e para a modernizacao administrativa em Portugal desde 1997, focalizando nos resultados do ultimo estudo realizado em 2015, em que se discutiu uma reflexao estrategica envolvendo quatro grupos de stakeholders e 28 organismos em workshops de futuro, seguida da analise do seu posicionamento. Face aos quatro cenarios resultantes: interesse e colaboracao; condicoes diferenciadas e distanciamento, interesse e consolidacao dos papeis das secretarias gerais; interesse no desenvolvimento de uma politica e estrategia para o setor, equaciona-se se sera esta fase de envolvimento do cidadao na investigacao a etapa necessaria para a mudanca. Palavras-chave: Bibliotecas; Investigacao-Acao; Modernizacao administrativa; Sociedade de Informacao

The presente paper focuses on Exílio magazine in the continuity of Modernists publications, specially in its relations with Orpheu and Centauro.To reach the proposal about these dialogical relations,

This chapter presents an analysis and a recommended strategy to address the problem of the management of digital publications in deposit institutions. The perspective here assumed is of the national libraries, but part of the problem can be shared with archives and other similar institutions. In this chapter we will try to demonstrate that the problem raises new technical and formal issues to these institutions, with impact in multiple and not always clear dimensions, thus requiring a deep knowledge of the new emerging objects and also new and adjustable postures for management. To deal with the problem, we propose an approach based in a strategy taking in account three components: analysis of the structure of the problem, the concept of publication genre and the concept of scenarios. The work presented in this chapter is based on the results of the first phase of the project NEDLIB - Networked European Deposit Library, an international project promoted by a European consortium.Request access from your librarian to read this chapter's full text.

Orthogonal Block Structure models are a well know class of models. In this paper we will work with a special class of such models, the ones with Commutative Orthogonal Block Structure, COBS. In this models the orthogonal projection matrix on the space spanned by the mean vector commutes with variance‐covariance matrix.The algebraic structure of such models will be studied and we will carry out inference for structured families of COBS where the models in these families correspond to the treatment of a base design.

DIGMAP is a project to find solutions for digital libraries scenarios focused on digitised historical maps. The main service will reuse metadata from European national libraries and other relevant third party metadata sources to provide discovery and access to contents. This will also include a proof of concept of a scenario of reusing and enriching these metadata by automatic processes that will try to extract relevant indexing information from the images of the digitised maps, as well as from any kind of associated text.

UNIMARC is a family of bibliographic metadata schemas with formats for descriptive information, classification, authorities and holdings. This paper describes the problem of maintenance and management of these schemas, with their online publishing for human and machine readable. This is accomplished by a Model View Controller (MVC) architecture managing the format schemas and schema descriptions in XML, as model representations, and XSLT transformations for the publishing in HTML, PDF, and other possible option. This work is an activity of a larger project toward the development of the international UNIMARC Metadata Registry, in the scope of the IFLA-CDNL Alliance for Bibliographic Standards activities.

This chapter presents an analysis and a recommended strategy to address the problem of the management of digital publications in deposit institutions. The perspective here assumed is of the national libraries, but part of the problem can be shared with archives and other similar institutions. In this chapter we will try to demonstrate that the problem raises new technical and formal issues to these institutions, with impact in multiple and not always clear dimensions, thus requiring a deep knowledge of the new emerging objects and also new and adjustable postures for management. To deal with the problem, we propose an approach based in a strategy taking in account three components: analysis of the structure of the problem, the concept of publication genre and the concept of scenarios. The work presented in this chapter is based on the results of the first phase of the project NEDLIB - Networked European Deposit Library, an international project promoted by a European consortium.