August 2, 2005 2:27 PM PDT

New Flickr tools rein in photo chaos

Related Stories

Yahoo's game of photo tag

March 22, 2005

Yahoo buys photo-sharing site Flickr

March 20, 2005
Yahoo's recently acquired photo-sharing service, Flickr, on Monday rolled out two major new tools designed to bring more context and relevance to members' manifold images.

In the more than a year since its launch, Flickr has grown to have more than a million members, who, collectively, have posted 31 million images on the site. In many cases, users have tagged their photos, or those of others, with keywords that can then be used to find or organize pictures later.

Flickr's early adoption of tags has made the service extremely popular because it is fairly easy to find images of, say, cats or Paris or the World Series by searching for photos tagged with those terms.

"We wanted to build something that allows the good stuff to surface."
--Stewart Butterfield, Flickr co-founder

One of the new tools breaks down images with specific tags into clusters. For example, "turkey," which could refer either to the country or to the bird, is now divided into clusters for each possible interpretation.

The other new tool, called "interestingness," brings a Google-like relevancy to images by applying an algorithm that ranks photos--by date or by tag--according to how frequently the Flickr community has viewed them and how often they've been recommended.

"We wanted to build something that allows the good stuff to surface," said Stewart Butterfield, one of Flickr's co-founders. "We're relying on the implicit behavior and seeing what people are actually paying attention to, and doing the rankings that way."

While there are other photo-sharing services, few, if any, have built the kind of loyal following that Flickr has. That's due, largely, to the fact that its users have so many ways to make their photos accessible to friends and family, and also that its developers have concentrated on creating interactive ways for users to participate on the site.

But as the service has matured and as the sheer number of photographs it hosts has become more and more unwieldy, its developers have had to work on new ways to make the metadata (tags and comments) users attach to images more useful.

Flickr's power-users say the service has succeeded with its new tools, particularly the "interestingness" feature that allows users to see the photos others have thought highly of.

"It's great, because it works," said Matt Haughey, the founder of the popular technology culture blog, Metafilter, and a longtime Flickr observer. "The hardest problem to solve with any big service is to be able to answer the question, 'Can you show me just the good stuff?' Music, photos, you name it, that's a nearly impossible thing to automate and paying editors to find the best of doesn't scale."

Similarly, the clustering feature gives users a way to see, at a glance, photos organized in more meaningful ways than Flickr had previously offered.

"Prior to them perfecting the whole community metadata tag thing, this would be nearly impossible to do," Haughey said. "You'd have to do photo analysis to figure out if a photo was of the beach or some sky. That's like big supercomputer Xerox PARC type stuff."

Butterfield plays down the achievement, but he acknowledges that both the clustering and interestingness tools required a great deal of work.

"It's just a lot of really, really hard computation," he said. "For every tag in the system, we're looking for how often it coexists with another tag on the system. So that's just a brute force system."

 

Join the conversation

Add your comment

The posting of advertisements, profanity, or personal attacks is prohibited. Click here to review our Terms of Use.

What's Hot

Discussions

Shared

RSS Feeds

Add headlines from CNET News to your homepage or feedreader.