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Showing posts with label Engine. Show all posts
Showing posts with label Engine. Show all posts

Monday, January 24, 2011

Google's computer programme: from search engine to operating system - Telegraph.co.uk

A relentless torrent of news has poured from Google over the last week. On Monday the firm announced a phone, made in partnership with Samsung, that it hopes will rival Apple’s iPhone; next it announced the release of its own operating system, which it hopes will in due course come to rival Windows, the software that forms the basis of most computers on the planet. Today it is back in its heartland of search, revealing the most and least looked for words and phrases online, from people to aspirations.

What is telling however is not Google’s ability to capture a year in review. Of course people were searching “I love football” and “I hate football” in a World Cup year, and of course David Cameron was another top term after the Conservatives formed a Government. But what’s much more interesting is how these results show that Google is now a part of the furniture. People type in “I feel lonely” or “I love dance”.

More and more people are entering those Google searches into Google’s own browser, Chrome, too. This week the company announced that 120 million people are using the stripped down browser that has set a trend that others such as Microsoft’s Internet Explorer have also followed. This time last year, just 40 million people were using Chrome, so the growth is extraordinary. Just as Google took over from incumbents such as Yahoo with web search, it could yet discover a similar trajectory for the browser, because switching is comparatively easy.

Far more challenging than that, however, is Google’s new ambition: Chrome OS is an operating system, which means it would form the basis of everything your computer does. Unsurprisingly for Google, it’s aimed at people who work mostly online. Speed, including booting up in seconds, security and simplicity are the key features.

Indeed, it’s because of the growth of the internet, itself catalysed by Google, that Chrome has come about. More and more applications are now web-based: so email, word processing, music and presentations all happen online. Google’s new phone, for instance, includes a feature called “listen to”. So say “Listen to Kylie Minogue” and it will go to the web, find what tracks you can access and start playing them. This is very different from previous models where users who wanted to listen to music needed to download specific songs, install programmes to play it and organise their libraries. Now, on the phone or in a browser very “thin” software is required, because the web does all the work. It’s a long way from just a few years ago when, say, installing Microsoft Office meant using countless floppy disks.

Brian Rakowski, Google’s director of product development, says, “We launched Chrome because many of us were spending all day in the browser and the browsers weren’t quite up to the task. We wanted them to be simpler, speedier and more secure. Now we’re seeing that a lot of people who are just living in the browser don’t need all the other features in an operating system.”

Sundar Pichai, Google’s vice-president of product management, adds that the approach is genuinely novel compared to how an operating system such as Windows currently works. “The model is fundamentally different because it’s a whole different approach to security. With other operating systems, users have to maintain their applications, protect their data and so on.” Pichai says that with Chrome OS, there’s only really one application, Chrome itself, and therefore everything else is online.

If that approach meets users’ needs, it could almost spell the end for computer viruses, because the prospect of downloading anything would become a thing of the past. Chrome OS also uses a clever technique that means it verifies everything is as it should be every time it starts up. And because Chrome OS is so thin itself, it’s very quick. Such speed and security means it will allow Google to continue to push into business uses, too.

Not everyone is convinced of this plan: Ovum analyst Mike Davis says “Will these workers want Chrome OS on a device such as netbook? No they will want a tablet. Whether Google likes it or not, its former 'partner’ Apple has all of the current mind share on web connected devices with its iPad tablet, and it will have a second version of the iPad with an updated version of its own iOS before Chrome is officially released to the world in the second half of 2011.”

Indeed, Google’s current plan is to test a version of Chrome OS in limited markets on a bespoke laptop. Frequent updates will iron out issues with what is currently unfinished software. So Chrome is currently a long way from challenging Microsoft. But Google’s agenda is clear. As Pichai says, “Google has direct benefits when more people use the web; when people use Chrome and Chome OS we see a direct rise in revenue.” Internet searches are what the company is all about; whether it is making phones, laptops or tablet computers, getting more people online is the one ambition. Users pay for it by clicking on adverts.


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Sunday, November 28, 2010

Alternative Search Engine Blekko Launches to Eliminate Spam in Search - ABC News

Blekko's alternative search engine — a $24 million venture-backed project that's been three years in the making — is today launching its public beta. With the official rollout, Blekko is also releasing several new features designed for both mainstream and the site's super users.

As you may recall, Blekko is designed to eliminate spam search results, allowing users to search just a subset of the web through its proprietary slashtag technology.

The most significant upgrade to Blekko's search engine is the addition of slashtags that auto-fire for queries that fall into one of seven categories: health, colleges, autos, personal finance, lyrics, recipes and hotels. Every time a Blekko user's query is determined to be in one of these categories, Blekko will automatically append the associated slashtag to the query and limit results to just the subset of URLs that fall under that slashtag.

The auto-fire functionality is designed with passive searchers in mind and aims to eliminate friction for first-time users. The technology that powers these auto-slashtags was developed through an extensive research and development phase that involved analyzing the relationship between queries and the type of spam results they typically generate.

Blekko plans to introduce auto-slashing for additional categories moving forward, but selected to launch with ones that represent a high volume of search traffic and are typically laden with spammy results. Health, lyric and financial queries on Google or Bing, for instance, will return results dominated by poor quality content farms or malware-hosting sites. Those same searches on Blekko yield results only from high quality sites.

Blekko's slashtag formula works because of passionate users who take the time to add and edit URLs for category slashtags. As such, the company has released new features to enable users to apply to be editors for slashtags as well as share their comments and feedback on individual slashtags. Think of this as the Wikipedia formula but applied to search, so a small percentage of users will work together to build out slashtags for the majority of Blekko searchers.


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Sunday, October 17, 2010

Twitter Revamps Search Engine - PC World

Twitter has overhauled the back-end infrastructure of its search engine, boosting its speed and capacity to index posts, process queries and deliver results, while making the system more stable and better suited for the addition of new features.

Twitter transferred its search engine to the new platform in recent weeks, after working on the new back-end system for about six months, according to the company.

Twitter's search engine ran on a system based on MySQL from Summize, a company Twitter acquired in mid-2008, but scaling up the system had become difficult.

The engineering team in charge of the project decided to do an extreme makeover of the search engine using a different technology: the open-source, text search engine Lucene, which is written in Java.

Twitter modified some aspects of Lucene, including its garbage collection, query termination, posting lists, and data structures and algorithms, and was left with an inverted, index-based search engine that scales much more and has better performance.

Twitter fields 12,000 search queries per second -- or more than 1 billion per day -- and "tweets" become part of its search index less than 10 seconds after they are posted.

"We estimate that we're only using about 5 percent of the available backend resources, which means we have a lot of headroom. Our new indexer could also index roughly 50 times more Tweets per second than we currently get," Twitter official Michael Busch wrote in a blog post.

Twitter will contribute back to the Lucene project the modifications and improvements it made to the code.

Although Twitter makes available its index of "tweets" to external search engines like Google and Microsoft's Bing, its internal search engine is a key component of its microblogging service.

In addition to being the preferred vehicle among private citizens, public figures and companies for broadcasting short status updates, Twitter has become an increasingly valued repository of real-time data, tapped for following news, trends and collective musings.

To maximize the value of this "tweet" repository, the company must have a search engine that is fast, comprehensive and scalable, and its massive revamping of its search technology shows the company recognizes the importance of its internal search capabilities.


View the original article here