Improve the search engine algorithm to make the search results more time-sensitive

According to foreign media reports, Google Thursday admitted that its search engine in some cases to give the search results are older, so improve the search engine algorithm, so that search results more time-sensitive. This is Google's search algorithm for a relatively large improvement, affecting about 35% of the search.

The new algorithm suggests that Google faces growing challenges from Twitter and Facebook, which have made people increasingly accustomed to getting the latest news that is constantly updated and up-to-date. It also reflects how people use the web as a real-time news source, for example, when a user searches for a baseball score, he wants to look for a score in an ongoing game, not a score for another game last week.

"We need to find a way to Engine the latest content more effectively," said Danny Sullivan, an editor and industry expert at Search Land, Denniso Livan. Now many people think that if I need to find the latest news about something, I will go to Facebook or Twitter. ”

Google had also tried to launch a real-time search in 2009, when it launched the Google.com/realtime service, which included Twitter tweets. But the cooperation agreement expired in July this year, after the failure to agree on the terms of the agreement and failed to renew the contract, so Google withdrew the site.

Google has to compete with Facebook, Twitter and Bing, in the view of netizens who want to know the latest news and comments about the current events. Unlike Google, Microsoft's Bing search results include the latest postings on Twitter and Facebook.

"The biggest source of the latest information is Twitter, where Google has no way to get data of a similar size from anywhere else," says Sulivan. But when people do that kind of search, they're looking for a lot of responses, looking for Twitter. So even with these changes, that doesn't solve the problem. ”

Google has established its leadership position by searching for archived websites. But now people are looking for links to many years ago, such as the best recipe for banana bread, or a week-old link like the last episode of Gossip Girl, or a couple of seconds before the news of the presidential election this morning.

Google makes more than 500 changes to its search algorithm each year, but most changes affect only a small part of the search results. Amit Singhal, a Google search employee, Amit Sinhal a blog post announcing changes to Google's search algorithm, saying that Google intends to use the latest algorithm to make it possible for the search engine to determine the difference between the various search requirements the user gives.

He said: "The new algorithm must be able to determine based on the search keywords on a TV program a week before the search results are the latest, or about a major news week before the search results are too old." ”

"The algorithm is modified to better understand how to differentiate between these different kinds of searches and what the user needs to be different freshness." ”

The last time Google announced a major overhaul of the search algorithm was in February, when it said it would raise the rankings of quality sites against low-quality sites, often called content farms, which are the stuff that makes search engines full of meaningless articles. While two-thirds of U.S. Internet users still search through Google, it faces competition from Bing and non-search sites such as Facebook.

The new algorithm will affect Google search results worldwide, but will not change the ads displayed on the search results page. The new algorithm will provide netizens with the latest news such as current events, for frequently updated topics that offer relatively new search results, such as the new iphone, the algorithm will be able to identify the differences between the two different search requirements, and it knows that comments are different from current events, even if the comments made a week ago are useful.

"We don't think we're doing well in this, we just understand that people want Google to provide the latest search results for a variety of queries," said Rajan Patel, a Google software engineer who developed new algorithms, Layampatre. ”

For some of the less time-sensitive content, such as recipes or how to change tires, Google says the new algorithm knows to ignore the creation time of the content, completely based on the quality of the content of the search screen.

The technology used by the new algorithm was developed by Google last year in response to the need for people to publish real-time updates online. It's a web indexing system called "caffeine," which scans the web more quickly and continually updates Google's Web site index. Google's previous site index was updated every two weeks. Patel said changes made in Thursday changed the way Google ranked links, and it has now added those changes to the index.