20 Jan 2020

feedPlanet RDF

Cloud Cipher Capabilities

… or, the lack of it. A recent discussion at a customer made me having a closer look around support for encryption in the context of XaaS cloud service offerings as well as concerning Hadoop. In general, this can be broken down into over-the-wire (cf. SSL/ TLS ) and back-end encryption. While the former is widely used, the latter is rather seldom to find. Different reasons might exits why one wants to encrypt her data, ranging from preserving a competitive advantage to end-user privacy issues. No matter why someone wants to encrypt the data, the question is do systems support ...

20 Jan 2020 3:06am GMT

18 Jan 2020

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[Paper Review] The Coerciveness of the Primary Key: Infrastructure Problems in Human Services Work

This blog post is a quick review and notes relating to a research paper called: The Coerciveness of the Primary Key: Infrastructure Problems in Human Services Work ( PDF available here ) It's part of my new research notebook to help me collect and share notes on research papers and reports. Brief summary This paper explores the impact of data infrastructure, and in particular the use of identifiers and the design of databases, on the delivery of human (public) services. By reviewing the use of identifiers and data in service delivery to support homelessness and those affected by AIDS, the ...

18 Jan 2020 1:05pm GMT

17 Jan 2020

feedPlanet RDF

SANSA 0.7.1 (Semantic Analytics Stack) Released

We are happy to announce SANSA 0.7.1 - the seventh release of the Scalable Semantic Analytics Stack. SANSA employs distributed computing via Apache Spark and Flink in order to allow scalable machine learning, inference and querying capabilities for large knowledge graphs . Website: http://sansa-stack.net GitHub: https://github.com/SANSA-Stack Download: http://sansa-stack.net/downloads-usage/ ChangeLog: https://github.com/SANSA-Stack/SANSA-Stack/releases You can find usage guidelines and examples at http://sansa-stack.net/user-guide . The following features are currently supported by SANSA: Reading and writing RDF files in N-Triples, Turtle, RDF/XML, N-Quad, TRIX format Reading OWL files in various standard formats Query heterogeneous sources (Data Lake) using SPARQL - CSV, Parquet, MongoDB, Cassandra, JDBC (MySQL, ...

17 Jan 2020 9:05am GMT

16 Dec 2013

feedSemantic Web Activity News

The new Data Activity at W3C

This is the last entry in this blog… A few days ago W3C started a new activity, called Data Activity, that also subsumes the (by now old) Semantic Web Activity. In order to have a fresh start, and to avoid … Continue reading

16 Dec 2013 9:22am GMT

08 Nov 2013

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RDF Json Alternate Serialization (RDF/JSON) Published

The RDF Working Group has published a Group Note of RDF 1.1 JSON Alternate Serialization (RDF/JSON). The Resource Description Framework (RDF) is a framework for representing information in the Web. This document defines a textual syntax for RDF called RDF/JSON that allows an … Continue reading

08 Nov 2013 9:28pm GMT

06 Nov 2013

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Proposed Recommendations for JSON-LD

The RDF Working Group has published two Proposed Recommendations today: JSON-LD 1.0. JSON is a useful data serialization and messaging format. This specification defines JSON-LD, a JSON-based format to serialize Linked Data. The syntax is designed to easily integrate into deployed systems … Continue reading

06 Nov 2013 10:02pm GMT

19 Jan 2012

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Mon intervention lors de l’inauguration du Retour à la Terre Rive Gauche

En attendant la publication des photos et vidéos sur le site du Retour à la Terre , voici le texte que j’avais préparé pour mon intervention lors de l’inauguration officielle du magasin de la Rive Gauche le 18 janvier. Catherine est inquiète parce qu’elle ne sait pas ce que je veux vous dire ce soir… Elle me connaît pourtant bien puisque cela fait plus de trente ans que nous vivons ensemble ! Nous avons la chance d’avoir étudié dans une grande école (l’École Centrale) où nous nous sommes rencontrés mais avons toujours eu du mal à nous intégrer au monde des ...

19 Jan 2012 12:59pm GMT

Yak shaving

If your brain works the way mine does, you often find yourself doing a variety of related but not necessary tasks along the way to fulfilling a larger goal. For some reason, the history of which I’m not entirely sure, this is called “yak shaving.” Some of my finest work has been done that way, so I’m happy to embrace it, even if I do add hours to the job at hand. This week’s yak shaving has neared epic proportions, but proved eminently satisfying. I’ve been working on collecting together an overview of big data products. It’s early days yet ...

19 Jan 2012 12:13am GMT

18 Jan 2012

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HttpURLConnection’s Dark Secrets

If you’re programming in the Java language and want to talk to a Web server, there are several libraries you can choose from. HttpURLConnection is one popular choice, and for Android programming, the engineering team has now officially suggested that you use it where possible. Since there are irritating orthographical and Web-Architecture issues with the name “HttpURLConnection”, let’s just say HUC. HUC is reasonably well documented, if by “reasonably well” you mean “omits any discussion of the relationship between method calls and underlying HTTP traffic”. Let me fill that in. Who knows, maybe some JavaDocs maintainer somewhere will feel inspired ...

18 Jan 2012 11:17pm GMT