Articles on AI governance, cybersecurity and systems architecture.
The Arduino YÚN pairs an ATmega32U4 microcontroller with an Atheros AR9331 SoC running OpenWrt. Technical notes on the serial bridge between the two chips and what changes for anyone prototyping connected objects.
Read moreDocker, open-sourced by dotCloud in March 2013, puts a uniform interface over cgroups, namespaces and a union filesystem already present in the Linux kernel. What changes is not the kernel but the distribution format.
Read moreA technical reading of DICOM in 2013: the object model, SOP Classes, DIMSE services, transfer syntaxes, and the move under way towards the REST services WADO-RS, QIDO-RS and STOW-RS. What you build with the Open Source toolkits.
Read moreThe BeagleBone Black ships in April 2013 at $45 with a TI AM335x SoC, 512 MB DDR3, 2 GB eMMC and two 200 MHz PRUs. Next to the core that runs Linux sits a real-time subsystem few same-price boards offer.
Read moreVagrant describes a development virtual machine in a Ruby Vagrantfile and recreates it with vagrant up. The 1.1.0 release, out today, decouples the workflow from the VirtualBox backend through its provider system.
Read moreDecree-law 179/2012 gives Italy's Electronic Health Record a national statutory basis while deferring its operational content to a Prime Ministerial decree that has yet to be issued. What Article 12 establishes, how it rests on the Digital Administration Code, and which technical questions remain open.
Read moreTraining a classifier is the easy part. Keeping it in service — serialisation, data drift, retraining, accountability for the decisions — is the bill you pay every day.
Read moreThe Raspberry Pi Model B, on sale from 29 February 2012 at 35 dollars, is an ARMv6 single-board computer built for teaching. What makes it suitable for teaching computing, and which layer stays closed even on a board this cheap.
Read moreHow an HL7 v2 message is built: pipe-delimited encoding, segments, message types, MLLP transport, and why the variability between implementations is the real cost of hospital integration.
Read moreOpenCDS exposes clinical logic as an HL7 DSS web service that takes a virtual Medical Record and returns structured recommendations, with Drools as the execution engine. A technical note on the architecture, the authoring bottleneck and the limits as of 2012.
Read moreRFC 6455 standardised WebSocket in December 2011. The least obvious detail is the mandatory XOR masking of client-to-server frames: a rule born from a real attack on transparent proxies, not a stylistic choice.
Read moreArduino 1.0 (30 November 2011) freezes the sketch format and core API: .ino extension, Arduino.h replacing WProgram.h, Stream return values, rewritten String and SoftwareSerial. Notes on the compatibility breaks.
Read moreIn 2011 the production data of a photovoltaic plant lives behind proprietary protocols. The state of open formats and free software that try to make it readable.
Read moreWhy digitising an editorial catalogue is mainly a problem of metadata and content typing, not of storage alone: the role of CMIS, SKOS, DITA and EPUB on top of an Alfresco core.
Read moreOpenStack's third release, Cactus (15 April 2011), brings live migration to Nova and static serving to Swift. Technical notes on the compute architecture and on what is still missing before production.
Read moreLinkedIn open-sourced Kafka in January 2011. Instead of a queue with single-consumption delivery, it builds messaging on top of a persistent, partitioned log.
Read moreOn 29 January 2011 the Hudson community voted to rename the project Jenkins. The code's licence was free; the name and the infrastructure were not. Where the real control of a project sits.
Read moreThe first stable LibreOffice release (25 January 2011) gathers OpenOffice.org 3.3, the Go-oo patches and the Linux distribution patches into a single tree. A technical note on import filters, build and governance.
Read moreNotes on the JAMIA paper describing cTAKES (Savova et al., 2010): its UIMA annotator architecture, the UMLS dictionary lookup, NegEx-based negation, and the component figures measured on the Mayo corpus.
Read moreA technical reckoning of free software in 2010: from distributed version control to licensing, what really changed in the daily work of standing up sites and applications.
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