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Questions about vitamin D - The Globe and Mail
"This is not one of our usual hour-long live discussions. Rather, this is an online question-and-answer session. Your questions and Dr. Vieth's answers will appear at the bottom of this page after 1 p.m. EDT today."
OpenQA: Selenium
Selenium is a test tool for web applications. Selenium tests run directly in a browser, just as real users do. And they run in Internet Explorer, Mozilla and Firefox on Windows, Linux, and Macintosh. No other test tool covers such a wide array of platform
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Wolfram Blog : Wolfram|Alpha Is Coming!
Some might say that Mathematica and A New Kind of Science are ambitious projects.\nBut in recent years I've been hard at work on a still more ambitious project-called Wolfram|Alpha.
Wolfram Alpha Computes Answers To Factual Questions. This Is Going To Be Big.
In a nutshell, Wolfram and his team have built what he calls a "computational knowledge engine" for the Web. OK, so what does that really mean? Basically it means that you can ask it factual questions and it computes answers for you.\n\nIt doesn't simply return documents that (might) contain the answers, like Google does, and it isn't just a giant database of knowledge, like the Wikipedia. It doesn't simply parse natural language and then use that to retrieve documents, like Powerset, for example. Instead, Wolfram Alpha actually computes the answers to a wide range of questions - like questions that have factual answers such as "What country is Timbuktu in?" or "How many protons are in a hydrogen atom?" or "What is the average rainfall in Seattle?"\n\nThink about that for a minute. It computes the answers. Wolfram Alpha doesn't simply contain huge amounts of manually entered pairs of questions and answers, nor does it search for answers in a database of facts. Instead, it understands and then computes answers to certain kinds of questions.
Wolfram|Alpha
Making the world's knowledge computableToday's Wolfram|Alpha is the first step in an ambitious, long-term project to make all systematic knowledge immediately computable by anyone. You enter your question or calculation, and Wolfram|Alpha uses its built-in algorithms and growing collection of data to compute the answer.
Wolfram|Alpha, the Details Behind the Rhombic Hexecontahedron
Wolfram|Alpha uses “10+ trillion of pieces of data, 50,000+ types of algorithms and models, and linguistic capabilities for 1000+ domains”. The engine was built on top of Mathematica’s engine being continually developed since 1986 and currently containing over 5 million lines of symbolic code running on world’s 66th fastest super-computer supporting 175 millions requests a day. The service is offered by R Systems and can process 39.6 trillion mathematical operations per second. Details:
The system, called R Smarr, has 4,608 processor cores using 576 quad-core "Harpertown" Xeon machines, 65,536GB of memory, and high-speed InfiniBand data-transfer connections, according to the Top500 site and a Dell case study on the system (PDF). It also uses both the Red Hat Enterprise Linux and Microsoft Windows HPC Server operating systems, according to the Dell paper.
Alpha requests will be served from five co-location facilities, Wolfram Research said. There actually are two supercomputers in the project, with nearly 10,000 processor cores total and hundreds of terabytes of hard drives.
Five Things Wolfram Alpha Does Better (And Vastly Different) Than Google
Wolfram Alpha is not a search engine. Perhaps it will one day become one, but currently it’s exactly what its tagline says: a computational knowledge engine. However, it looks like Google, it provides you with answers and therefore most users will try to use it as a search engine, which doesn’t always yield good results. Once you start asking it the right questions, it’ll give you better answers.
I’ve spent a couple of days with Wolfram Alpha, and I’ve learned to love it for all the ways it’s different than search engines such as Google. Here are some guidelines which will help you shake off that “search engine” frame of mind and perhaps help you start using Wolfram Alpha to its full potential.
Wolfram's Black Box: a biologist's take on Wolfram|Alpha - Ars Technica
Wolfram|Alpha may have a way with numbers, but its ability to strip the context from those numbers leaves it only a small step from being a glorified graphing calculator.
Wolfram Alpha: Wikipedia killer? | Education IT | ZDNet.com
t seems that most people who have had the chance to use Wolfram Alpha (myself included) agree that it will do a few things to Google: it will drive it to innovate in semantic search and it will complement its high-volume search capabilities quite nicely. It will not, however, kill Google.
On the other hand, the folks over at Trusted Reviews made a very good point in their first look at Alpha:
…Wolfram Alpha isn’t verbose, it likes stats not sentences so we are looking at something to complement existing web search engines, not replace them.
That said, there remains no doubt Wolfram Alpha represents a quantum leap forward in compiling data and the next time I need cold hard facts I suspect it is Wikipedia, not Google, which might feel the pinch…
Uudenlainen hakukone Wolfram Alpha nyt kaikkien kokeiltavissa / Tiede ja Teknologia / Digitoday
Wolfram Alpha -hakukone on avattu testikäyttöön. Uudenlainen hakukone ei hae tiedonmurusia internetistä, vaan osaa yhdistellä tietoja ja vastata älykkäästi sille esitettyihin kysymyksiin.
Esimerkiksi hakulause moon phase dec 6th 1917 tuottaa vastaukseksi kuvan, josta näkyy että Suomen itsenäistyessä taivaalla paistoi 55-prosenttinen puolikuu.
See Wolfram Alpha in Action: Our Screenshots - ReadWriteWeb
Last weekend, we attended a web demo of Wolfram Alpha, a new "computational knowledge engine" based on the work of Stephen Wolfram. Some have dubbed Alpha a "Google killer," but, in reality, it is very different from the standard search engines that we are all familiar with today.
When we got the demo, Wolfram asked us to refrain from publishing any screenshots. Today, however, the Berkman Center posted a video of the public demo Wolfram gave earlier this week, so we think it's only fair that we share our own screenshots with our readers at this point.
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