13 Dec 2018

feedPlanet RDF

SANSA 0.5 (Semantic Analytics Stack) Released

We are happy to announce SANSA 0.5 - the fifth 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 the FAQ and usage examples at http://sansa-stack.net/faq/ . The following features are currently supported by SANSA: Reading and writing RDF files in N-Triples, Turtle, RDF/XML, N-Quad format Reading OWL files in various standard formats Query heterogeneous sources (Data Lake) using SPARQL - CSV, Parquet, MongoDB, Cassandra, JDBC ...

13 Dec 2018 8:25am GMT

01 Dec 2018

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Cat detector with Tensorflow on a Raspberry Pi 3B+

Like this Download Raspian Stretch with Desktop Burn a card with Etcher. (Assuming a Mac) Enable ssh touch /Volumes/boot/ssh Put a wifi password in nano /Volumes/boot/wpa_supplicant.conf country=GB ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev update_config=1 network={ ssid="foo" psk="bar" } Connect the Pi camera, attach a dial to GPIO pin 12 and ground, boot up the Pi, ssh in, then sudo apt-get update sudo apt-get upgrade sudo raspi-config # and enable camera; reboot install tensorflow sudo apt install python3-dev python3-pip sudo apt install libatlas-base-dev pip3 install --user --upgrade tensorflow Test it python3 -c "import tensorflow as tf; tf.enable_eager_execution(); print(tf.reduce_sum(tf.random_normal([1000, 1000])))" get imagenet git clone ...

01 Dec 2018 8:48pm GMT

30 Nov 2018

feedPlanet RDF

DCMI to Maintain the Bibliographic Ontology (BIBO)

The Dublin Core Metadata Initiative is pleased to announce that it has accepted responsibility for maintaining the Bibliographic Ontology (BIBO). BIBO is a long-established ontology, is very stable and is widely used in bibliographic linked-data. We are also very pleased to announce that Bruce D'Arcus has joined the DCMI Usage Board, and will act as the point of contact for issues relating to BIBO. Bruce had this to say about the decision:

30 Nov 2018 12:00am 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