Ontology-based access to sensor data streams

Sensor networks are increasingly becoming one of the main sources of Big Data on the Web. However, the observations that they produce are made available with heterogeneous schemas, vocabularies and data formats, making it difficult to share and reuse these data for other purposes than those for which they were originally set up. In this thesis we address these challenges, considering how we can transform streaming raw data to rich ontology-based information that is accessible through continuous queries for streaming data. Our main contribution is an ontology-based approach for providing data access and query capabilities to streaming data sources, allowing users to express their needs at a conceptual level, independent of implementation and language-specific details. We introduce novel query rewriting and data translation techniques that rely on mapping definitions relating streaming data models to ontological concepts. Specific contributions include: • The syntax and semantics of the SPARQLStream query language for ontologybased data access, and a query rewriting approach for transforming SPARQLStream queries into streaming algebra expressions. • The design of an ontology-based streaming data access engine that can internally reuse an existing data stream engine, complex event processor or sensor middleware, using R2RML mappings for defining relationships between streaming data models and ontology concepts. Concerning the sensor metadata of such streaming data sources, we have investigated how we can use raw measurements to characterize streaming data, producing enriched data descriptions in terms of ontological models. Our specific contributions are: • A representation of sensor data time series that captures gradient information that is useful to characterize types of sensor data. • A method for classifying sensor data time series and determining the type of data, using data mining techniques, and a method for extracting semantic sensor metadata features from the time series.

Web-based access to mouse models of human cancers: the Mouse Tumor Biology (MTB) Database

The Mouse Tumor Biology (MTB) Database serves as a curated, integrated resource for information about tumor genetics and pathology in genetically defined strains of mice (i.e., inbred, transgenic and targeted mutation strains). Sources of information for the database include the published scientific literature and direct data submissions by the scientific community. Researchers access MTB using Web-based query forms and can use the database to answer such questions as ‘What tumors have been reported in transgenic mice created on a C57BL/6J background?’, ‘What tumors in mice are associated with mutations in the Trp53 gene?’ and ‘What pathology images are available for tumors of the mammary gland regardless of genetic background?’. MTB has been available on the Web since 1998 from the Mouse Genome Informatics web site (http://www.informatics.jax.org). We have recently implemented a number of enhancements to MTB including new query options, redesigned query forms and results pages for pathology and genetic data, and the addition of an electronic data submission and annotation tool for pathology data.

Ethics and access to teaching materials in the medical library: the case of the Pernkopf atlas*

Conflicts can occur between the principle of freedom of information treasured by librarians and ethical standards of scientific research involving the propriety of using data derived from immoral or dishonorable experimentation. A prime example of this conflict was brought to the attention of the medical and library communities in 1995 when articles claiming that the subjects of the illustrations in the classic anatomy atlas, Eduard Pernkopf's Topographische Anatomie des Menschen, were victims of the Nazi holocaust. While few have disputed the accuracy, artistic, or educational value of the Pernkopf atlas, some have argued that the use of such subjects violates standards of medical ethics involving inhuman and degrading treatment of subjects or disrespect of a human corpse. Efforts were made to remove the book from medical libraries. In this article, the history of the Pernkopf atlas and the controversy surrounding it are reviewed. The results of a survey of academic medical libraries concerning their treatment of the Pernkopf atlas are reported, and the ethical implications of these issues as they affect the responsibilities of librarians is discussed.

Environmental Information Access as a Security Risk

The United Sates was founded on the principles of freedom. Events in recent history have threatened the freedoms we as individuals enjoy. Notably, changes to government legislation and policies regarding access to environmentally sensitive information following September 11, 2001, are troubling. The government has struggled with a difficult balancing act. The public has the right of access to information, yet, information some view as sensitive or dangerous must be kept out of the hands of terrorists. This project examines and discusses the information access debate within the United States and how to best provide the public environmentally sensitive information.

The UN General Assembly Resolution on Access to Legal Aid in Criminal Proceedings - an Example for Europe. IES Policy Brief Issue 2013/04 • May 2013

Summary. The EU’s attempts to adopt an EU-wide instrument on the right to access to legal aid in criminal proceedings have not been successful so far. The important issue was originally part of Measure C of the Roadmap for criminal procedural rights,1 but due to political difficulties legal aid was dropped from the agenda. However, on a different plane agreement was reached on this topic as the United Nations General Assembly (UNGA) has adopted the world’s first international instrument dedicated to access to legal aid in December 2012.2 This policy brief argues that the EU should carry on in the ‘spirit’ of these recent developments and adopt a directive providing suspects and defendants with access to legal aid. 1 Council Resolution of 30 November 2009 on a Roadmap for strengthening procedural rights of suspected or accused persons in criminal proceedings, OJ C 295/1, 4 December 2009; hereafter will be referred to this Council Resolution as the ‘Roadmap’; for further information see M. Jimeno-Bulnes, ‘The EU Roadmap for Strengthening Procedural Rights of Suspected or Accused Persons in Criminal Proceedings’, 4 EUCrim (2009), 157-161. 2 United Nations Principles and Guidelines on Access to Legal Aid in Criminal Justice Systems, A/Res/67/187, 20 December 2012; from here on will be referred to this as the ‘Resolution’.

Access to Electronic Data by Third-Country Law Enforcement Authorities, Challenges to EU Rule of Law and Fundamental Rights. Center for European Policy Studies, 2015

This study examines the challenges posed to European law by third country access to data held by private companies for the purposes of law enforcement. It pays particular attention to the implications for rule of law and fundamental rights of foreign authorities’ direct access to electronic information falling outside pre-established channels of supranational cooperation. A special focus is given to EU-US relations and the practical issues emerging in transatlantic relations covering mutual legal assistance and evidence gathering for law enforcement purposes in criminal proceedings.

From data to information : new directions for the National Center for Education Statistics : conference proceedings /

"NCES 96-901."

Guide to information on research in marine science and engineering /

Mode of access: Internet.

Market research sources. a guide to information on domestic marketing.

At head of title, 1926-1928: Dept. of Commerce. Bureau of Foreign and Domestic Commerce; 1930- U.S. Dept. of Commerce. Bureau of Foreign and Domestic Commerce.

Problems in bibliographic access to non-print materials : final report /

Mode of access: Internet.

Access to parental leave in Australia: evidence from Negotiating the Life Course

Although unpaid parental leave has been available to most Australian employees for more than a decade, and public sector legislation and company policies provide at least some employees with an entitlement to paid parental leave, there is as yet little information available on accessibility, take-up rates or the extent to which current leave provisions meet the needs of parents. In this paper, data from the Negotiating the Life Course survey are used to examine the first of these issues: accessibility. Variations in perceptions of access to paid and unpaid parental leave are examined in bivariate and multivariate analyses, which emphasise marked divisions in the Australian labour market between permanent and casual status. The data also suggest that access to unpaid parental leave is more variable than might be expected from a reading of formal legislative provisions, and raise questions over the accessibility of paid parental leave to those who need it most-employees with young children.

Towards Content-Sensitive Access to the Artefacts of the Bulgarian Iconography

his paper presents an ontological model of the knowledge about Bulgarian iconographical artefacts. It also describes content-sensitive services for access, browse, search and group iconographical objects, based on the presented ontology that will be implemented in the multimedia digital library “Virtual encyclopedia of Bulgarian iconography”.

Digital Preservation and Access to Cultural and Scientific Heritage: Presentation of the KT-DigiCult-BG Project

The fast development and wide application of digital methods, combined with broadened access to the Internet and falling computing costs, have created intense interest in electronic presentation and access to cultural and scientific heritage resources. Information technologies have offered cultural institutions new opportunities for the presentation of their holdings, which are now made accessible not only to the specialists, but also to the citizens and interested parties worldwide. The paper presents an overview of the Bulgarian experience in the field of digital preservation and access and on-going work on the project “Knowledge Transfer for the Digitisation of Scientific and Cultural Heritage to Bulgaria” (MTKD-CT-2004-509754) supported by the Marie Curie programme of the FP6 of the EC.

Digital Preservation and Web Access to the Konkoly Observatory Schmidt Telescope Plate Archive

ACM Computing Classification System (1998): J.2.