Tuesday, November 17, 2009

Explore images with Google Image Swirl, now in Labs

Back in 2001, to give people a new, quicker way to find images, we launched Image Search. When you do a search for [eiffel tower] you'll find an array of images of the tower in the daytime, in black and white, at sunset and more. With Similar Images, which recently graduated from Google Labs, you can click "Find similar images" to narrow your search to, say, pictures of the Eiffel Tower lit up at night. Today, we've launched an experimental feature in Labs called Google Image Swirl, which builds on new computer vision research to cluster similar images into representative groups in a fun, exploratory interface.

For example, if you search on Image Swirl for [washington], you'll see 12 image thumbnails including President Washington, the Washington Monument, a map of Washington D.C. and the Capitol Building:


Once you find the group of images you're interested in, you can click on the thumbnail and a cluster of images will "swirl" into view. For example, here's what you'll see if you click the image of the Washington Monument:


You can then further explore additional sub-groups within any cluster. The interface may look familiar to those of you who have tried Google's Wonder Wheel available in the Search Options panel, which enables you to explore related search queries.

Image Swirl expands on technologies developed for Similar Images and Picasa Face Recognition to discern how images should be grouped together and build hierarchies out of these groups. Each thumbnail on the initial results page represents an algorithmically-determined representative group of images with similar appearance and meaning. These aren't just the most relevant images — they are the most relevant groups of images.

Image Swirl currently works for more than 200,000 queries and we plan to include more queries in the future. Available queries will auto-complete as you start to type in the search box, similar to Google Suggest.

You can try out Google Image Swirl in Google Labs today. The feature is experimental and the underlying technology is a work in progress, so please share your feedback and let us know how we can make it more useful.

Finding the laws that govern us

As many of us recall from our civics lessons in school, the United States is a common law country. That means when judges issue opinions in legal cases, they often establish precedents that will guide the rulings of other judges in similar cases and jurisdictions. Over time, these legal opinions build, refine and clarify the laws that govern our land. For average citizens, however, it can be difficult to find or even read these landmark opinions. We think that's a problem: Laws that you don't know about, you can't follow — or make effective arguments to change.

Starting today, we're enabling people everywhere to find and read full text legal opinions from U.S. federal and state district, appellate and supreme courts using Google Scholar. You can find these opinions by searching for cases (like Planned Parenthood v. Casey), or by topics (like desegregation) or other queries that you are interested in. For example, go to Google Scholar, click on the "Legal opinions and journals" radio button, and try the query separate but equal. Your search results will include links to cases familiar to many of us in the U.S. such as Plessy v. Ferguson and Brown v. Board of Education, which explore the acceptablity of "separate but equal" facilities for citizens at two different points in the history of the U.S. But your results will also include opinions from cases that you might be less familiar with, but which have played an important role.

We think this addition to Google Scholar will empower the average citizen by helping everyone learn more about the laws that govern us all. To understand how an opinion has influenced other decisions, you can explore citing and related cases using the Cited by and Related articles links on search result pages. As you read an opinion, you can follow citations to the opinions to which it refers. You can also see how individual cases have been quoted or discussed in other opinions and in articles from law journals. Browse these by clicking on the "How Cited" link next to the case title. See, for example, the frequent citations for Roe v. Wade, for Miranda v. Arizona (the source of the famous Miranda warning) or for Terry v. Ohio (a case which helped to establish acceptable grounds for an investigative stop by a police officer).

As we worked to build this feature, we were struck by how readable and accessible these opinions are. Court opinions don't just describe a decision but also present the reasons that support the decision. In doing so, they explain the intricacies of law in the context of real-life situations. And they often do it in language that is surprisingly straightforward, even for those of us outside the legal profession. In many cases, judges have gone quite a bit out of their way to make complex legal issues easy to follow. For example, in Korematsu v. United States, the Supreme Court justices present a fascinating and easy-to-follow debate on the legality of internment of natural born citizens based on their ancestry. And in United States v. Ramirez-Lopez, Judge Kozinski, in his dissent, illustrates the key issue of the case using an imagined good-news/bad-news dialogue between the defendant and his attorney.

We would like to take this opportunity to acknowledge the work of several pioneers, who have worked on making it possible for an average citizen to educate herself about the laws of the land: Tom Bruce (Cornell LII), Jerry Dupont (LLMC), Graham Greenleaf and Andrew Mowbray (AustLII), Carl Malamud (Public.Resource.Org), Daniel Poulin (LexUM), Tim Stanley (Justia), Joe Ury (BAILII), Tim Wu (AltLaw) and many others. It is an honor to follow in their footsteps. We would also like to acknowledge the judges who have built this cathedral of justice brick by brick and have tried to make it accessible to the rest of us. We hope Google Scholar will help all of us stand on the shoulders of these giants.

Posted by Anurag Acharya, Distinguished Engineer

New site hierarchies display in search results

Google usually shows a green web address, or URL, at the bottom of each search result to let you know where you're headed. Today we're rolling out an improvement that replaces the URL in some search results with a hierarchy showing the precise location of the page on the website. The new display provides valuable context and new navigation options. The changes are rolling out now and should be available globally in the next few days.

Some web addresses help you understand the structure of the site and how the specific page fits into the site hierarchy. For example, consider a search for the biography of Vint Cerf (Google's Internet Evangelist). The URL for one result, "www.google.com/corporate/execs.html," shows that the page is located in a page about "execs," under "corporate," which is on the "google.com" site. This can provide valuable context when deciding whether to click on the result.

Often, however, URLs are too long, too short, or too obscure to add useful information. For example, consider this result from ProductWiki for the query [spidersapien reviews]:


The URL of this result is "www.productwiki.com/spidersapien," which doesn't provide much additional information about the site or this result. Now take a look at the result with the new site hierarchy display:


The new text provides useful information about the page. You can tell that the ProductWiki site has information about many different products, organized in different categories, and you can even tell that Spidersapien is a robot toy. In addition, each phrase in the green line is actually a link. For example, clicking on "Toys & Games" takes you to ProductWiki's listing page for all toys, and clicking on "Robots" takes you to a list of their robot toys. This way if you realize that you're interested in a more general category than this specific product (there are a lot of cool robot toys out there) you can easily access information on broader topics.

The host and domain for the site (in this case www.productwiki.com) will always be shown, so you always know what website you're going to before you click. There's not always enough room to show the complete hierarchy, so sometimes we use ellipses to replace some of the intermediate levels, like in this result for [how to make granola]:


The information in these new hierarchies come from analyzing destination web pages. For example, if you visit the ProductWiki Spidersapien page, you'll see a series of similar links at the top, "Home> Toys & Games> Robots." These are standard navigational tools used throughout the web called "breadcrumbs," which webmasters frequently show on their sites to help users navigate. By analyzing site breadcrumbs, we've been able to improve the search snippet for a small percentage of search results, and we hope to expand in the future.

When we design the way results appear on google.com, our goal is to get you to the information you're looking for as quickly as possible. Sometimes that means improving how we represent websites, and other times that means giving you new ways to explore content. We're always happy when we can introduce a feature, like site hierarchies, that does both!

Connecting citizens and journalists with YouTube Direct

(Cross-posted from the YouTube Blog)

Every day, people with video cameras are changing the ways we get our news. We see it during elections. We see it during earthquakes, fires and other natural disasters. We see it on our freeways, in our schools and in our public spaces. Almost any event that takes place today has a chance of being captured on camera. As YouTube has become a global platform for sharing the news, media organizations have been looking for a good way to connect directly with citizen reporters on our site so they can broadcast this footage and bring it to a larger audience.

That's why we created YouTube Direct, a new tool that allows media organizations to request, review and rebroadcast YouTube clips directly from YouTube users. Built from our APIs, this open source application lets media organizations enable customized versions of YouTube's upload platform on their own websites. Users can upload videos directly into this application, which also enables the hosting organization to easily review video submissions and select the best ones to broadcast on-air and on their websites. As always, these videos also live on YouTube, so users can reach their own audience while also getting broader exposure and editorial validation for the videos they create.




Though we built YouTube Direct to help news organizations expand their coverage and connect directly with their audiences, the application is designed to meet any organization's goal of leveraging video content submitted by the community. Businesses can use YouTube Direct to solicit promotional videos, nonprofits can use the application to call out for support videos around social campaigns and politicians can use the platform to ask for user-generated political commercials. The opportunities to use the tool are as broad as the media spectrum itself.

Already, we've seen ABC News, the Huffington Post, NPR, Politico, the San Francisco Chronicle, the Washington Post and WHDH-TV/WLVI-TV in Boston using YouTube Direct. We look forward to seeing many more organizations to do the same.

To get started, visit youtube.com/direct.

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