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Experiment

This category contains 11 posts

MapReduce for and with the kids

Last week was Halloween and of course we went trick-or-treating with our three kids which resulted in piles of sweets in the living room. Powered by the sugar, the kids would stay up late to count their harvest and while I was observing them at it, I was wondering if it possible to explain the … Continue reading

Schema.org + WebIntents = Awesomeness

Imagine you search for a camera, say a Canon EOS 60D, and in addition to the usual search results you’re as well offered a choice of actions you can perform on it, for example share the result with a friend, write a review for the item or, why not directly buy it? Sounds far fetched? … Continue reading

Turning tabular data into entities

Two widely used data formats on the Web are CSV and JSON. In order to enable fine-grained access in an hypermedia-oriented fashion I’ve started to work on Tride, a mapping language that takes one or more CSV files as inputs and produces a set of (connected) JSON documents. In the 2 min demo video I … Continue reading

Processing the LOD cloud with BigQuery

Google’s BigQuery is a large-scale, interactive query environment that can handle billions of records in seconds. Now, wouldn’t it be cool to process the 26+ billion triples from the LOD cloud with BigQuery? I guess so ;) So, I did a first step into this direction by setting up the BigQuery for Linked Data project … Continue reading

Quick RDFa profiling report

Where some RDFa profiling is done (load time of an HTML+RDFa document depending on number of embedded triples …) Continue reading

Toying around with Riak for Linked Data

So I stumbled upon Rob Vesse’s tweet the other day, where he said he was about to use MongoDB for storing RDF. A week earlier I watched a nice video about links and link walking in Riak, “a Dynamo-inspired key/value store that scales predictably and easily” (see also the Wiki doc). Now, I was wondering … Continue reading

Linked Enterprise Data in a nutshell

Explains and demonstrates the usage of Linked Open Data in an enterprise setup using shell scripts. Continue reading

Keepin’ Up With A LOD Of Changes

So, the other day I had a look at caching support in the Linked Open Data cloud and it turns out that there is a related discussion regarding caching on the ietf-http-wg@w3.org mailing list. Then, there is another related update from Bill Roberts: Delivering Linked Data quickly with which I wholeheartedly agree. To take the … Continue reading

Linked Open Data Caching – Establishing a Baseline with HTTP

The other day I was pondering on Linked Open Data Source Dynamics and as a starting point I wanted to learn more about the caching characteristics of LOD data sources. Now, in order to establish a baseline, one should have a look at what HTTP, one of the pillars of Linked Data, offers (see also … Continue reading

Toying around with (embedded) WebAccessControl

So TimBL has provided a nice write-up on a Web of Data version of a simple authorization scheme and protocol called WebAccessControl (WAC). It includes a draft of a vocabulary and a protocol (see also open issues with it). I thought it might be nice to have a visual representation of the schema and hence … Continue reading

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