Good Deals. Good Ideas. Good Designs. Good Health.

Anything that is worth reading… and learning from. Just my opinions.

Technologies behind Google Ranking…

leave a comment »

Technorati Tags:

Following up with a previous article from Google on Google Ranking Explained… we now have the so called part 2 of it which talks about the technologies behind Google Ranking. Not a must read for anyone in the online digital space as understanding the technologies behind does not necessary gives you any advantage to ‘fool’ or ‘trick’ the system… but it’s just amazing to see many of the academia stuff are making head ways into commercialisation. Google being heavily on that, recruiting professors and top scholars out of universities… Microsoft with it’s Research arm… The explosion & speed to market is getting more crucial in this day and age. Not necessary the first mover advantage but how to do the same thing, better. Google was never the first in online search… Alta Vista, Yahoo were some of the earlier pioneers… but Google with a ‘better’ system just came from the back and took over.

In my previous post, I introduced the philosophies behind Google ranking. As part of our effort to discuss search quality, I want to tell you more about the technologies behind our ranking. The core technology in our ranking system comes from the academic field of Information Retrieval (IR). The IR community has studied search for almost 50 years. It uses statistical signals of word salience, like word frequency, to rank pages. (See "Modern Information Retrieval: A Brief Overview" for a quick overview of IR technology.) IR gave us a solid foundation, and we have built a tremendous system on top using links, page structure, and many other such innovations.
Search in the last decade has moved from give me what I said to give me what I want. User expectations from search have rightly increased. We work hard to fulfil the expectations of each and every user, and to do that we need to better understand the pages, the queries, and our users. Over the last decade we have pushed the technologies for understanding these three components (of the search process) to completely new dimensions.
When we talk about queries at Google, we use square brackets [ ] to mark the beginning and end of queries (see "How to write queries" by Matt Cutts), a notation I will use throughout this post. (Pages and search results change frequently, so in time, some examples used here may not behave as explained.)

  • Understanding pages: Over years we have invested heavily in our crawl and indexing system. As a result we have a very large and very fresh index. In addition to size and freshness, we have improved our index in other ways. One of the key technologies we have developed to understand pages is associating important concepts to a page even when they are not obvious on the page. We find the official homepage for Sprovieri Gallery in London for the Italian query [galleria sprovieri londra], even though the official page does not have either London or Londra on it. In the U.S., a user searching for [cool tech pc vancouver, wa] finds the homepage www.cooltechpc.com even though the page does not mention anywhere that they are in Vancouver, WA. Other technologies we have developed include distinctions between important and less important words in the page and the freshness of the information on the page.

I hope my two posts about Google ranking have made it clear that we live and breathe search, and we are more passionate than ever about it. Our fervor for serving all our users worldwide is unprecedented. We pride ourselves in running a very good ranking system, and are working incredibly hard every day to make it even better.

Advertisements

Written by gooddealz

July 23, 2008 at 2:26 pm

Posted in News Only, Opinions

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: