Posts Tagged ‘how to’

5 Ways to Add Machine Learning Java

javaSerdar Yegulalp of InfoWorld recently wrote, “After spending decades in the shadows as a specialty discipline, machine learning is suddenly front and center as a business tool. The hard part, though, is making it useful, especially to the developers and budding data scientists who are being tasked with the job. To that end, we rounded up some of the most common and useful open source machine learning tools we’ve spotted in the wild.” Read more

New Technical Brief Available from LRMI and Cetis

Image of Technical Brief by LRMI about Learning Resource Metadata Initiative (LRMI) has released a technical briefing about The paper was co-authored by Phil Barker and Lorna M. Campbell of Cetis, the Centre for Educational Technology, Interoperability and Standards.

LRMI, which we have reported on here, “has developed a common metadata framework for describing or ‘tagging’ learning resources on the web.”

The Cetis website says, “This briefing describes for a technical audience. It is aimed at people who may want to implement markup in websites or other tools they build but who wish to know more about the technical approach behind and how to implement it. We also hope that this briefing will be useful to those who are evaluating whether to implement to meet the requirements of their own organization.”

In making the announcement in a W3C list, Barker explained, “We often find that when explaining the technology approach of LRMI we are mostly talking about, so this briefing, which describes the specification for a technical audience should be of interest to anyone thinking about implementing or using LRMI in a website or other tool. It should also be of interest to people who plan to use for describing other types of resources.”

The technical brief can be downloaded from:

Elephant Hunting for Pygmies: How To Introduce Big Data and Linked Data to Your Company

[Editor’s Note: This guest post was provided by Tom Ilube, Managing Director, Callcredit Consumer Markets, and includes additional contributions from Rob Styles, Principal Technical Consultant, Callcredit)]

Photo of African Elephant

If you intend to introduce Big Data and Linked Data approaches to your company you may wish to learn from the way pygmies hunt elephants.

Forty years ago my father took me on safari in remote parts of Kenya. We ended up slightly off the beaten track, in a pygmy village. They were very welcoming and one evening as we sat around chatting some of the young men told us how they hunt elephants. Pygmies, I am reliably informed, approach this formidable task in three easy steps.

Step 1: A team of two pygmies roll around in elephant dung, so that they can sneak up on said elephant without being detected;

Step 2: Pygmy A (let us call him “Joe”) climbs on Pygmy B’s (“Fred”) shoulders, underneath the elephant (“Nelly”). Joe uses a short, sharp spear to attack the soft underbelly and aim directly for Nelly’s heart. Then they run. Fast.

Step 3: Joe and Fred return to the village, carrying an ear each, and are received as heroes as the whole village feasts for weeks.

Mind you, if Joe and Fred return covered in dung and without ears then they are given pretty short shrift by their fellow village, let me tell you! There is also the minor risk of being stomped on. But otherwise, it’s a foolproof plan.

This is precisely the approach that Rob Styles (Pygmy A) and I (Pygmy B) are taking in introducing Big Data concepts at Callcredit, the UK credit reference agency. Well, perhaps not precisely. But let’s see how far I can push this ridiculous analogy.

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WEBCAST: Introduction to SKOS with Bob DuCharme

If you missed the excellent live webcast introduction to SKOS by Bob DuCharme (of TopQuadrant and the recently released Learning SPARQL), the recorded webcast is now available.

Introduction to SKOS by Bob DuCharme - click to watch the webcast.

You will probably find this webcast useful if: Read more

Upcoming Webcast: “Introduction to SKOS” with Bob DuCharme

Date: Thursday, October 6, 2011
Register Now
Time: 2:00pm ET / 11:00am PT
Cost: FREE

In August, we had the pleasure of hosting the excellent instructor, Bob DuCharme, as he walked us through an introduction to SPARQL: “SPARQL Queries, SPARQL Technology.” Next week, Bob will join us again, this time to introduce us to SKOS, the Simple Knowledge Organization System standard.


You manage a taxonomy, thesaurus, or some other kind of controlled vocabulary using a proprietary tool or perhaps even by emailing around spreadsheets to each other. Read more

New Course Offering: Intro to Semantic Technologies, Linked Data, & Ontologies

Learn the conceptual framework and principles required to apply
semantic technologies to various domains

semsphere logoSemsphere is offering a three-module, distance-learning course called, “Intro to Semantic Technologies, Linked Data, and Ontologies,” and is pleased to announce that our readers get a 10% discount on course fees.  The course will take place over four weeks and is designed for researchers, evangelists, and hobbyists who want to use semantic technologies.

It features live, weekly webcasts, guided tutorials, course materials, interaction with the instructor, and access to recorded instructional sessions. The modules cover three core topics: semantic technologies, linked data, and ontologies.

WHEN: 4 weeks (October 17 - November 7)
WHERE: Online
LEVEL: Introductory
WHO: Researchers, evangelists, and hobbyists who want to use semantic technologies
PRICE: $1,278
(SemanticWeb readers receive a 10% discount off the regular price of $1,420.)

Click to Register


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WEBCAST: SPARQL Queries, SPARQL Technology with Bob DuCharme

If you missed last week’s excellent introduction to SPARQL by Bob DuCharme of TopQuadrant and the recently released Learning SPARQL, the recorded webcast is now available.  In this presentation, Bob shows how to create and run SPARQL queries. He also talks about the role that the query language can play in application development. Lastly, he looks at the range of uses people are finding for SPARQL above and beyond querying of RDF data, such as querying relational data, defining rules to enhance data quality, and more…

SPARQL Queries, SPARQL Technologies with Bob DuCharme - Watch the Webcast

Watch the webcast here:

There were some questions we did not get to during the hour, and Bob has been kind enough to answer these offline.

BONUS Q&A with Bob DuCharme:

Q: Can sparql engines integrate reasoners and reason over the data on the fly? Read more

The Simplicity of RDFa

Bob DuCharme, the presenter of next week’s webcast SPARQL Queries, SPARQL Technology recently wrote a brief article showing how simple RDFa can be. DuCharme begins, “I got so tired of hearing people complain about how confusing RDFa is that while I was on hold during a recent phone call I threw together a demo of just how simple it can be. The document has the two basic kinds of triples: one with a literal for an object, with data typing thrown in for good measure, and one with a resource URI as its object.” Read more

Treating Search Engines like the Big Babies They Are

A quirky new article likens search engines to humongous babies. The article states, “You can’t expect it to understand complicated things. You would never try to teach language to a human baby by reading it Nietzsche, and you shouldn’t expect a baby google to learn bibliographic data by feeding it MARC (or RDA or METS or MODS, or even ONIX). When a baby says ‘goo-goo’ to you, you don’t criticize its misuse of the subjunctive. You say ‘goo-goo’ back. When Google tells you that that it wants to hear ‘’ microdata, you don’t try to tell it about the first indicator of the 856 ‡u subfield. You give it microdata, no matter how babyish that seems.” Read more

New Additions to the SemTech SF program

If it’s been a while since you have looked in on the conference program for SemTech SF, you may have missed the addition of some significant, exciting sessions.  Recent additions to this year’s conference include:

Aditya Kalyanpur, research staff member for IBM Research will lead a session entitled “Building Watson: An Overview of the DeepQA Project for the Jeopardy! Challenge,” a discussion of the the DeepQA technology and describe what it was like to build a Watson, the computer system that won on Jeopardy!.


the Facebook Social GraphThe rise of the Interest Graph: How Semantic Technology Will Lead What’s Next for the Social Web.” Dave S Copps, CEO of PureDiscovery Corporation, will discuss the reasons why transactional searches will be replaced by social filtering. The real power and potential of semantic technologies will be unleashed as semantic vendors integrate the richness of the data being generated by the social graph (Twitter, Facebook, etc.) to create networks that share more than just a relationship.

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