Hypermedia-based discovery for source selection using low-cost linked data interfaces

Evaluating federated Linked Data queries requires consulting multiple sources on the Web. Before a client can execute queries, it must discover data sources, and determine which ones are relevant. Federated query execution research focuses on the actual execution, while data source discovery is often marginally discussed-even though it has a strong impact on selecting sources that contribute to the query results. Therefore, the authors introduce a discovery approach for Linked Data interfaces based on hypermedia links and controls, and apply it to federated query execution with Triple Pattern Fragments. In addition, the authors identify quantitative metrics to evaluate this discovery approach. This article describes generic evaluation measures and results for their concrete approach. With low-cost data summaries as seed, interfaces to eight large real-world datasets can discover each other within 7 minutes. Hypermedia-based client-side querying shows a promising gain of up to 50% in execution time, but demands algorithms that visit a higher number of interfaces to improve result completeness

Identifying candidate datasets for data interlinking

One of the design principles that can stimulate the growth and increase the usefulness of the Web of data is URIs linkage. However, the related URIs are typically in different datasets managed by different publishers. Hence, the designer of a new dataset must be aware of the existing datasets and inspect their content to define sameAs links. This paper proposes a technique based on probabilistic classifiers that, given a datasets S to be published and a set T of known published datasets, ranks each Ti ∈ T according to the probability that links between S and Ti can be found by inspecting the most relevant datasets. Results from our technique show that the search space can be reduced up to 85%, thereby greatly decreasing the computational effort. The final publication is available at Springer via http://dx.doi.org/10.1007/978-3-642-39200-9_29

Two approaches to the dataset interlinking recommendation problem

Whenever a dataset t is published on the Web of Data, an exploratory search over existing datasets must be performed to identify those datasets that are potential candidates to be interlinked with t. This paper introduces and compares two approaches to address the dataset interlinking recommendation problem, respectively based on Bayesian classifiers and on Social Network Analysis techniques. Both approaches define rank score functions that explore the vocabularies, classes and properties that the datasets use, in addition to the known dataset links. After extensive experiments using real-world datasets, the results show that the rank score functions achieve a mean average precision of around 60%. Intuitively, this means that the exploratory search for datasets to be interlinked with t might be limited to just the top-ranked datasets, reducing the cost of the dataset interlinking process. The final publication is available at Springer via http://dx.doi.org/10.1007/978-3-319-11749-2_25.EC/FP7/LinkedUpCNPq/160326/2012-5CNPq/303332/2013-1CNPq/557128/2009-9FAPERJ/E-26/170028/2008FAPERJ/E-26/103.070/2011FAPERJ/E-26/101.382/2014CAPES/141082

Using Genesis 34 in Christian Ethics: A Case Study in the Christian Ethical Appropriation of Old Testament Narratives

This thesis aims to set out parameters within which Christian ethical reappropriations of Old Testament Narratives can take place. Chapter One sets out the philosophical foundations for the project making special use of the work of Paul Ricoeur. It is argued that the notion of a narrative-self is crucial to understanding how it is that story can ethically shape its audience. Four specific ways in which it does this are set out. Chapter Two argues that story is far more important in OT ethics than has usually been appreciated. It moves' on to defend a hermeneutical model suggested by N. T. Wright for Christian interpretation of the OT. Having set forth the hermeneutical method in the first two chapters, Chapters Three to Five attempt to apply it to a case study. Chapter Three overviews the ethical use that has been made of Genesis 34 in the history of interpretation, whilst Chapter Four proposes an interpretation. Chapter Five is an attempt to interpret Genesis 34 within the context of the biblical metanarrative. It is argued that this sheds new light on appropriate and inappropriate Christian ethical uses of the chapter